| Commit message (Collapse) | Author | Age | Files | Lines |
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner:
- The final conversion of timer wheel timers to timer_setup().
A few manual conversions and a large coccinelle assisted sweep and
the removal of the old initialization mechanisms and the related
code.
- Remove the now unused VSYSCALL update code
- Fix permissions of /proc/timer_list. I still need to get rid of that
file completely
- Rename a misnomed clocksource function and remove a stale declaration
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits)
m68k/macboing: Fix missed timer callback assignment
treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts
timer: Remove redundant __setup_timer*() macros
timer: Pass function down to initialization routines
timer: Remove unused data arguments from macros
timer: Switch callback prototype to take struct timer_list * argument
timer: Pass timer_list pointer to callbacks unconditionally
Coccinelle: Remove setup_timer.cocci
timer: Remove setup_*timer() interface
timer: Remove init_timer() interface
treewide: setup_timer() -> timer_setup() (2 field)
treewide: setup_timer() -> timer_setup()
treewide: init_timer() -> setup_timer()
treewide: Switch DEFINE_TIMER callbacks to struct timer_list *
s390: cmm: Convert timers to use timer_setup()
lightnvm: Convert timers to use timer_setup()
drivers/net: cris: Convert timers to use timer_setup()
drm/vc4: Convert timers to use timer_setup()
block/laptop_mode: Convert timers to use timer_setup()
net/atm/mpc: Avoid open-coded assignment of timer callback function
...
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This changes all DEFINE_TIMER() callbacks to use a struct timer_list
pointer instead of unsigned long. Since the data argument has already been
removed, none of these callbacks are using their argument currently, so
this renames the argument to "unused".
Done using the following semantic patch:
@match_define_timer@
declarer name DEFINE_TIMER;
identifier _timer, _callback;
@@
DEFINE_TIMER(_timer, _callback);
@change_callback depends on match_define_timer@
identifier match_define_timer._callback;
type _origtype;
identifier _origarg;
@@
void
-_callback(_origtype _origarg)
+_callback(struct timer_list *unused)
{ ... }
Signed-off-by: Kees Cook <keescook@chromium.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull keys update from James Morris:
"There's nothing too controversial here:
- Doc fix for keyctl_read().
- time_t -> time64_t replacement.
- Set the module licence on things to prevent tainting"
* 'next-keys' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
pkcs7: Set the module licence to prevent tainting
security: keys: Replace time_t with time64_t for struct key_preparsed_payload
security: keys: Replace time_t/timespec with time64_t
KEYS: fix in-kernel documentation for keyctl_read()
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git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs into next-keys
Merge keys subsystem changes from David Howells, for v4.15.
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The 'struct key_preparsed_payload' will use 'time_t' which we will
try to remove in the kernel, since 'time_t' is not year 2038 safe on
32bits systems.
Thus this patch replaces 'time_t' with 'time64_t' which is year 2038
safe on 32 bits system for 'struct key_preparsed_payload', moreover
we should use the 'TIME64_MAX' macro to initialize the 'time64_t'
type variable.
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: James Morris <james.l.morris@oracle.com>
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The 'struct key' will use 'time_t' which we try to remove in the
kernel, since 'time_t' is not year 2038 safe on 32bit systems.
Also the 'struct keyring_search_context' will use 'timespec' type
to record current time, which is also not year 2038 safe on 32bit
systems.
Thus this patch replaces 'time_t' with 'time64_t' which is year 2038
safe for 'struct key', and replace 'timespec' with 'time64_t' for the
'struct keyring_search_context', since we only look at the the seconds
part of 'timespec' variable. Moreover we also change the codes where
using the 'time_t' and 'timespec', and we can get current time by
ktime_get_real_seconds() instead of current_kernel_time(), and use
'TIME64_MAX' macro to initialize the 'time64_t' type variable.
Especially in proc.c file, we have replaced 'unsigned long' and 'timespec'
type with 'u64' and 'time64_t' type to save the timeout value, which means
user will get one 'u64' type timeout value by issuing proc_keys_show()
function.
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: James Morris <james.l.morris@oracle.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor
Pull apparmor updates from John Johansen:
"No features this time, just minor cleanups and bug fixes.
Cleanups:
- fix spelling mistake: "resoure" -> "resource"
- remove unused redundant variable stop
- Fix bool initialization/comparison
Bug Fixes:
- initialized returned struct aa_perms
- fix leak of null profile name if profile allocation fails
- ensure that undecidable profile attachments fail
- fix profile attachment for special unconfined profiles
- fix locking when creating a new complain profile.
- fix possible recursive lock warning in __aa_create_ns"
* tag 'apparmor-pr-2017-11-21' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor:
apparmor: fix possible recursive lock warning in __aa_create_ns
apparmor: fix locking when creating a new complain profile.
apparmor: fix profile attachment for special unconfined profiles
apparmor: ensure that undecidable profile attachments fail
apparmor: fix leak of null profile name if profile allocation fails
apparmor: remove unused redundant variable stop
apparmor: Fix bool initialization/comparison
apparmor: initialized returned struct aa_perms
apparmor: fix spelling mistake: "resoure" -> "resource"
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Use mutex_lock_nested to provide lockdep the parent child lock ordering of
the tree.
This fixes the lockdep Warning
[ 305.275177] ============================================
[ 305.275178] WARNING: possible recursive locking detected
[ 305.275179] 4.14.0-rc7+ #320 Not tainted
[ 305.275180] --------------------------------------------
[ 305.275181] apparmor_parser/1339 is trying to acquire lock:
[ 305.275182] (&ns->lock){+.+.}, at: [<ffffffff970544dd>] __aa_create_ns+0x6d/0x1e0
[ 305.275187]
but task is already holding lock:
[ 305.275187] (&ns->lock){+.+.}, at: [<ffffffff97054b5d>] aa_prepare_ns+0x3d/0xd0
[ 305.275190]
other info that might help us debug this:
[ 305.275191] Possible unsafe locking scenario:
[ 305.275192] CPU0
[ 305.275193] ----
[ 305.275193] lock(&ns->lock);
[ 305.275194] lock(&ns->lock);
[ 305.275195]
*** DEADLOCK ***
[ 305.275196] May be due to missing lock nesting notation
[ 305.275198] 2 locks held by apparmor_parser/1339:
[ 305.275198] #0: (sb_writers#10){.+.+}, at: [<ffffffff96e9c6b7>] vfs_write+0x1a7/0x1d0
[ 305.275202] #1: (&ns->lock){+.+.}, at: [<ffffffff97054b5d>] aa_prepare_ns+0x3d/0xd0
[ 305.275205]
stack backtrace:
[ 305.275207] CPU: 1 PID: 1339 Comm: apparmor_parser Not tainted 4.14.0-rc7+ #320
[ 305.275208] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.1-1ubuntu1 04/01/2014
[ 305.275209] Call Trace:
[ 305.275212] dump_stack+0x85/0xcb
[ 305.275214] __lock_acquire+0x141c/0x1460
[ 305.275216] ? __aa_create_ns+0x6d/0x1e0
[ 305.275218] ? ___slab_alloc+0x183/0x540
[ 305.275219] ? ___slab_alloc+0x183/0x540
[ 305.275221] lock_acquire+0xed/0x1e0
[ 305.275223] ? lock_acquire+0xed/0x1e0
[ 305.275224] ? __aa_create_ns+0x6d/0x1e0
[ 305.275227] __mutex_lock+0x89/0x920
[ 305.275228] ? __aa_create_ns+0x6d/0x1e0
[ 305.275230] ? trace_hardirqs_on_caller+0x11f/0x190
[ 305.275231] ? __aa_create_ns+0x6d/0x1e0
[ 305.275233] ? __lockdep_init_map+0x57/0x1d0
[ 305.275234] ? lockdep_init_map+0x9/0x10
[ 305.275236] ? __rwlock_init+0x32/0x60
[ 305.275238] mutex_lock_nested+0x1b/0x20
[ 305.275240] ? mutex_lock_nested+0x1b/0x20
[ 305.275241] __aa_create_ns+0x6d/0x1e0
[ 305.275243] aa_prepare_ns+0xc2/0xd0
[ 305.275245] aa_replace_profiles+0x168/0xf30
[ 305.275247] ? __might_fault+0x85/0x90
[ 305.275250] policy_update+0xb9/0x380
[ 305.275252] profile_load+0x7e/0x90
[ 305.275254] __vfs_write+0x28/0x150
[ 305.275256] ? rcu_read_lock_sched_held+0x72/0x80
[ 305.275257] ? rcu_sync_lockdep_assert+0x2f/0x60
[ 305.275259] ? __sb_start_write+0xdc/0x1c0
[ 305.275261] ? vfs_write+0x1a7/0x1d0
[ 305.275262] vfs_write+0xca/0x1d0
[ 305.275264] ? trace_hardirqs_on_caller+0x11f/0x190
[ 305.275266] SyS_write+0x49/0xa0
[ 305.275268] entry_SYSCALL_64_fastpath+0x23/0xc2
[ 305.275271] RIP: 0033:0x7fa6b22e8c74
[ 305.275272] RSP: 002b:00007ffeaaee6288 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 305.275273] RAX: ffffffffffffffda RBX: 00007ffeaaee62a4 RCX: 00007fa6b22e8c74
[ 305.275274] RDX: 0000000000000a51 RSI: 00005566a8198c10 RDI: 0000000000000004
[ 305.275275] RBP: 0000000000000a39 R08: 0000000000000a51 R09: 0000000000000000
[ 305.275276] R10: 0000000000000000 R11: 0000000000000246 R12: 00005566a8198c10
[ 305.275277] R13: 0000000000000004 R14: 00005566a72ecb88 R15: 00005566a72ec3a8
Fixes: 73688d1ed0b8 ("apparmor: refactor prepare_ns() and make usable from different views")
Signed-off-by: John Johansen <john.johansen@canonical.com>
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Break the per cpu buffer atomic section when creating a new null
complain profile. In learning mode this won't matter and we can
safely re-aquire the buffer.
This fixes the following lockdep BUG trace
nov. 14 14:09:09 cyclope audit[7152]: AVC apparmor="ALLOWED" operation="exec" profile="/usr/sbin/sssd" name="/usr/sbin/adcli" pid=7152 comm="sssd_be" requested_mask="x" denied_mask="x" fsuid=0 ouid=0 target="/usr/sbin/sssd//null-/usr/sbin/adcli"
nov. 14 14:09:09 cyclope kernel: BUG: sleeping function called from invalid context at kernel/locking/mutex.c:747
nov. 14 14:09:09 cyclope kernel: in_atomic(): 1, irqs_disabled(): 0, pid: 7152, name: sssd_be
nov. 14 14:09:09 cyclope kernel: 1 lock held by sssd_be/7152:
nov. 14 14:09:09 cyclope kernel: #0: (&sig->cred_guard_mutex){....}, at: [<ffffffff8182d53e>] prepare_bprm_creds+0x4e/0x100
nov. 14 14:09:09 cyclope kernel: CPU: 3 PID: 7152 Comm: sssd_be Not tainted 4.14.0prahal+intel #150
nov. 14 14:09:09 cyclope kernel: Hardware name: LENOVO 20CDCTO1WW/20CDCTO1WW, BIOS GQET53WW (1.33 ) 09/15/2017
nov. 14 14:09:09 cyclope kernel: Call Trace:
nov. 14 14:09:09 cyclope kernel: dump_stack+0xb0/0x135
nov. 14 14:09:09 cyclope kernel: ? _atomic_dec_and_lock+0x15b/0x15b
nov. 14 14:09:09 cyclope kernel: ? lockdep_print_held_locks+0xc4/0x130
nov. 14 14:09:09 cyclope kernel: ___might_sleep+0x29c/0x320
nov. 14 14:09:09 cyclope kernel: ? rq_clock+0xf0/0xf0
nov. 14 14:09:09 cyclope kernel: ? __kernel_text_address+0xd/0x40
nov. 14 14:09:09 cyclope kernel: __might_sleep+0x95/0x190
nov. 14 14:09:09 cyclope kernel: ? aa_new_null_profile+0x50a/0x960
nov. 14 14:09:09 cyclope kernel: __mutex_lock+0x13e/0x1a20
nov. 14 14:09:09 cyclope kernel: ? aa_new_null_profile+0x50a/0x960
nov. 14 14:09:09 cyclope kernel: ? save_stack+0x43/0xd0
nov. 14 14:09:09 cyclope kernel: ? kmem_cache_alloc_trace+0x13f/0x290
nov. 14 14:09:09 cyclope kernel: ? mutex_lock_io_nested+0x1880/0x1880
nov. 14 14:09:09 cyclope kernel: ? profile_transition+0x932/0x2d40
nov. 14 14:09:09 cyclope kernel: ? apparmor_bprm_set_creds+0x1479/0x1f70
nov. 14 14:09:09 cyclope kernel: ? security_bprm_set_creds+0x5a/0x80
nov. 14 14:09:09 cyclope kernel: ? prepare_binprm+0x366/0x980
nov. 14 14:09:09 cyclope kernel: ? do_execveat_common.isra.30+0x12a9/0x2350
nov. 14 14:09:09 cyclope kernel: ? SyS_execve+0x2c/0x40
nov. 14 14:09:09 cyclope kernel: ? do_syscall_64+0x228/0x650
nov. 14 14:09:09 cyclope kernel: ? entry_SYSCALL64_slow_path+0x25/0x25
nov. 14 14:09:09 cyclope kernel: ? deactivate_slab.isra.62+0x49d/0x5e0
nov. 14 14:09:09 cyclope kernel: ? save_stack_trace+0x16/0x20
nov. 14 14:09:09 cyclope kernel: ? init_object+0x88/0x90
nov. 14 14:09:09 cyclope kernel: ? ___slab_alloc+0x520/0x590
nov. 14 14:09:09 cyclope kernel: ? ___slab_alloc+0x520/0x590
nov. 14 14:09:09 cyclope kernel: ? aa_alloc_proxy+0xab/0x200
nov. 14 14:09:09 cyclope kernel: ? lock_downgrade+0x7e0/0x7e0
nov. 14 14:09:09 cyclope kernel: ? memcg_kmem_get_cache+0x970/0x970
nov. 14 14:09:09 cyclope kernel: ? kasan_unpoison_shadow+0x35/0x50
nov. 14 14:09:09 cyclope kernel: ? kasan_unpoison_shadow+0x35/0x50
nov. 14 14:09:09 cyclope kernel: ? kasan_kmalloc+0xad/0xe0
nov. 14 14:09:09 cyclope kernel: ? aa_alloc_proxy+0xab/0x200
nov. 14 14:09:09 cyclope kernel: ? kmem_cache_alloc_trace+0x13f/0x290
nov. 14 14:09:09 cyclope kernel: ? aa_alloc_proxy+0xab/0x200
nov. 14 14:09:09 cyclope kernel: ? aa_alloc_proxy+0xab/0x200
nov. 14 14:09:09 cyclope kernel: ? _raw_spin_unlock+0x22/0x30
nov. 14 14:09:09 cyclope kernel: ? vec_find+0xa0/0xa0
nov. 14 14:09:09 cyclope kernel: ? aa_label_init+0x6f/0x230
nov. 14 14:09:09 cyclope kernel: ? __label_insert+0x3e0/0x3e0
nov. 14 14:09:09 cyclope kernel: ? kmem_cache_alloc_trace+0x13f/0x290
nov. 14 14:09:09 cyclope kernel: ? aa_alloc_profile+0x58/0x200
nov. 14 14:09:09 cyclope kernel: mutex_lock_nested+0x16/0x20
nov. 14 14:09:09 cyclope kernel: ? mutex_lock_nested+0x16/0x20
nov. 14 14:09:09 cyclope kernel: aa_new_null_profile+0x50a/0x960
nov. 14 14:09:09 cyclope kernel: ? aa_fqlookupn_profile+0xdc0/0xdc0
nov. 14 14:09:09 cyclope kernel: ? aa_compute_fperms+0x4b5/0x640
nov. 14 14:09:09 cyclope kernel: ? disconnect.isra.2+0x1b0/0x1b0
nov. 14 14:09:09 cyclope kernel: ? aa_str_perms+0x8d/0xe0
nov. 14 14:09:09 cyclope kernel: profile_transition+0x932/0x2d40
nov. 14 14:09:09 cyclope kernel: ? up_read+0x1a/0x40
nov. 14 14:09:09 cyclope kernel: ? ext4_xattr_get+0x15c/0xaf0 [ext4]
nov. 14 14:09:09 cyclope kernel: ? x_table_lookup+0x190/0x190
nov. 14 14:09:09 cyclope kernel: ? ext4_xattr_ibody_get+0x590/0x590 [ext4]
nov. 14 14:09:09 cyclope kernel: ? sched_clock+0x9/0x10
nov. 14 14:09:09 cyclope kernel: ? sched_clock+0x9/0x10
nov. 14 14:09:09 cyclope kernel: ? ext4_xattr_security_get+0x1a/0x20 [ext4]
nov. 14 14:09:09 cyclope kernel: ? __vfs_getxattr+0x6d/0xa0
nov. 14 14:09:09 cyclope kernel: ? get_vfs_caps_from_disk+0x114/0x720
nov. 14 14:09:09 cyclope kernel: ? sched_clock+0x9/0x10
nov. 14 14:09:09 cyclope kernel: ? sched_clock+0x9/0x10
nov. 14 14:09:09 cyclope kernel: ? tsc_resume+0x10/0x10
nov. 14 14:09:09 cyclope kernel: ? get_vfs_caps_from_disk+0x720/0x720
nov. 14 14:09:09 cyclope kernel: ? native_sched_clock_from_tsc+0x201/0x2b0
nov. 14 14:09:09 cyclope kernel: ? sched_clock+0x9/0x10
nov. 14 14:09:09 cyclope kernel: ? sched_clock_cpu+0x1b/0x170
nov. 14 14:09:09 cyclope kernel: ? find_held_lock+0x3c/0x1e0
nov. 14 14:09:09 cyclope kernel: ? rb_insert_color_cached+0x1660/0x1660
nov. 14 14:09:09 cyclope kernel: apparmor_bprm_set_creds+0x1479/0x1f70
nov. 14 14:09:09 cyclope kernel: ? sched_clock+0x9/0x10
nov. 14 14:09:09 cyclope kernel: ? handle_onexec+0x31d0/0x31d0
nov. 14 14:09:09 cyclope kernel: ? tsc_resume+0x10/0x10
nov. 14 14:09:09 cyclope kernel: ? graph_lock+0xd0/0xd0
nov. 14 14:09:09 cyclope kernel: ? tsc_resume+0x10/0x10
nov. 14 14:09:09 cyclope kernel: ? sched_clock_cpu+0x1b/0x170
nov. 14 14:09:09 cyclope kernel: ? sched_clock+0x9/0x10
nov. 14 14:09:09 cyclope kernel: ? sched_clock+0x9/0x10
nov. 14 14:09:09 cyclope kernel: ? sched_clock_cpu+0x1b/0x170
nov. 14 14:09:09 cyclope kernel: ? find_held_lock+0x3c/0x1e0
nov. 14 14:09:09 cyclope kernel: security_bprm_set_creds+0x5a/0x80
nov. 14 14:09:09 cyclope kernel: prepare_binprm+0x366/0x980
nov. 14 14:09:09 cyclope kernel: ? install_exec_creds+0x150/0x150
nov. 14 14:09:09 cyclope kernel: ? __might_fault+0x89/0xb0
nov. 14 14:09:09 cyclope kernel: ? up_read+0x40/0x40
nov. 14 14:09:09 cyclope kernel: ? get_user_arg_ptr.isra.18+0x2c/0x70
nov. 14 14:09:09 cyclope kernel: ? count.isra.20.constprop.32+0x7c/0xf0
nov. 14 14:09:09 cyclope kernel: do_execveat_common.isra.30+0x12a9/0x2350
nov. 14 14:09:09 cyclope kernel: ? prepare_bprm_creds+0x100/0x100
nov. 14 14:09:09 cyclope kernel: ? _raw_spin_unlock+0x22/0x30
nov. 14 14:09:09 cyclope kernel: ? deactivate_slab.isra.62+0x49d/0x5e0
nov. 14 14:09:09 cyclope kernel: ? save_stack_trace+0x16/0x20
nov. 14 14:09:09 cyclope kernel: ? init_object+0x88/0x90
nov. 14 14:09:09 cyclope kernel: ? ___slab_alloc+0x520/0x590
nov. 14 14:09:09 cyclope kernel: ? ___slab_alloc+0x520/0x590
nov. 14 14:09:09 cyclope kernel: ? kasan_check_write+0x14/0x20
nov. 14 14:09:09 cyclope kernel: ? memcg_kmem_get_cache+0x970/0x970
nov. 14 14:09:09 cyclope kernel: ? kasan_unpoison_shadow+0x35/0x50
nov. 14 14:09:09 cyclope kernel: ? glob_match+0x730/0x730
nov. 14 14:09:09 cyclope kernel: ? kmem_cache_alloc+0x225/0x280
nov. 14 14:09:09 cyclope kernel: ? getname_flags+0xb8/0x510
nov. 14 14:09:09 cyclope kernel: ? mm_fault_error+0x2e0/0x2e0
nov. 14 14:09:09 cyclope kernel: ? getname_flags+0xf6/0x510
nov. 14 14:09:09 cyclope kernel: ? ptregs_sys_vfork+0x10/0x10
nov. 14 14:09:09 cyclope kernel: SyS_execve+0x2c/0x40
nov. 14 14:09:09 cyclope kernel: do_syscall_64+0x228/0x650
nov. 14 14:09:09 cyclope kernel: ? syscall_return_slowpath+0x2f0/0x2f0
nov. 14 14:09:09 cyclope kernel: ? syscall_return_slowpath+0x167/0x2f0
nov. 14 14:09:09 cyclope kernel: ? prepare_exit_to_usermode+0x220/0x220
nov. 14 14:09:09 cyclope kernel: ? prepare_exit_to_usermode+0xda/0x220
nov. 14 14:09:09 cyclope kernel: ? perf_trace_sys_enter+0x1060/0x1060
nov. 14 14:09:09 cyclope kernel: ? __put_user_4+0x1c/0x30
nov. 14 14:09:09 cyclope kernel: entry_SYSCALL64_slow_path+0x25/0x25
nov. 14 14:09:09 cyclope kernel: RIP: 0033:0x7f9320f23637
nov. 14 14:09:09 cyclope kernel: RSP: 002b:00007fff783be338 EFLAGS: 00000202 ORIG_RAX: 000000000000003b
nov. 14 14:09:09 cyclope kernel: RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9320f23637
nov. 14 14:09:09 cyclope kernel: RDX: 0000558c35002a70 RSI: 0000558c3505bd10 RDI: 0000558c35018b90
nov. 14 14:09:09 cyclope kernel: RBP: 0000558c34b63ae8 R08: 0000558c3505bd10 R09: 0000000000000080
nov. 14 14:09:09 cyclope kernel: R10: 0000000000000095 R11: 0000000000000202 R12: 0000000000000001
nov. 14 14:09:09 cyclope kernel: R13: 0000558c35018b90 R14: 0000558c3505bd18 R15: 0000558c3505bd10
Fixes: 4227c333f65c ("apparmor: Move path lookup to using preallocated buffers")
BugLink: http://bugs.launchpad.net/bugs/173228
Reported-by: Alban Browaeys <prahal@yahoo.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
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It used to be that unconfined would never attach. However that is not
the case anymore as some special profiles can be marked as unconfined,
that are not the namespaces unconfined profile, and may have an
attachment.
Fixes: f1bd904175e8 ("apparmor: add the base fns() for domain labels")
Signed-off-by: John Johansen <john.johansen@canonical.com>
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Profiles that have an undecidable overlap in their attachments are
being incorrectly handled. Instead of failing to attach the first one
encountered is being used.
eg.
profile A /** { .. }
profile B /*foo { .. }
have an unresolvable longest left attachment, they both have an exact
match on / and then have an overlapping expression that has no clear
winner.
Currently the winner will be the profile that is loaded first which
can result in non-deterministic behavior. Instead in this situation
the exec should fail.
Fixes: 898127c34ec0 ("AppArmor: functions for domain transitions")
Signed-off-by: John Johansen <john.johansen@canonical.com>
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Fixes: d07881d2edb0 ("apparmor: move new_null_profile to after profile lookup fns()")
Reported-by: Seth Arnold <seth.arnold@canonical.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
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The boolean variable 'stop' is being set but never read. This
is a redundant variable and can be removed.
Cleans up clang warning: Value stored to 'stop' is never read
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
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Bool initializations should use true and false. Bool tests don't need
comparisons.
Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: John Johansen <john.johansen@canonical.com>
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gcc-4.4 points out suspicious code in compute_mnt_perms, where
the aa_perms structure is only partially initialized before getting
returned:
security/apparmor/mount.c: In function 'compute_mnt_perms':
security/apparmor/mount.c:227: error: 'perms.prompt' is used uninitialized in this function
security/apparmor/mount.c:227: error: 'perms.hide' is used uninitialized in this function
security/apparmor/mount.c:227: error: 'perms.cond' is used uninitialized in this function
security/apparmor/mount.c:227: error: 'perms.complain' is used uninitialized in this function
security/apparmor/mount.c:227: error: 'perms.stop' is used uninitialized in this function
security/apparmor/mount.c:227: error: 'perms.deny' is used uninitialized in this function
Returning or assigning partially initialized structures is a bit tricky,
in particular it is explicitly allowed in c99 to assign a partially
initialized structure to another, as long as only members are read that
have been initialized earlier. Looking at what various compilers do here,
the version that produced the warning copied uninitialized stack data,
while newer versions (and also clang) either set the other members to
zero or don't update the parts of the return buffer that are not modified
in the temporary structure, but they never warn about this.
In case of apparmor, it seems better to be a little safer and always
initialize the aa_perms structure. Most users already do that, this
changes the remaining ones, including the one instance that I got the
warning for.
Fixes: fa488437d0f9 ("apparmor: add mount mediation")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Seth Arnold <seth.arnold@canonical.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: John Johansen <john.johansen@canonical.com>
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Trivial fix to spelling mistake in comment and also with text in
audit_resource call.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
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Commit b65a9cfc2c38 ("Untangling ima mess, part 2: deal with counters")
moved the call of ima_file_check() from may_open() to do_filp_open() at a
point where the file descriptor is already opened.
This breaks the assumption made by IMA that file descriptors being closed
belong to files whose access was granted by ima_file_check(). The
consequence is that security.ima and security.evm are updated with good
values, regardless of the current appraisal status.
For example, if a file does not have security.ima, IMA will create it after
opening the file for writing, even if access is denied. Access to the file
will be allowed afterwards.
Avoid this issue by checking the appraisal status before updating
security.ima.
Cc: stable@vger.kernel.org
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux
Pull module updates from Jessica Yu:
"Summary of modules changes for the 4.15 merge window:
- treewide module_param_call() cleanup, fix up set/get function
prototype mismatches, from Kees Cook
- minor code cleanups"
* tag 'modules-for-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux:
module: Do not paper over type mismatches in module_param_call()
treewide: Fix function prototypes for module_param_call()
module: Prepare to convert all module_param_call() prototypes
kernel/module: Delete an error message for a failed memory allocation in add_module_usage()
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Several function prototypes for the set/get functions defined by
module_param_call() have a slightly wrong argument types. This fixes
those in an effort to clean up the calls when running under type-enforced
compiler instrumentation for CFI. This is the result of running the
following semantic patch:
@match_module_param_call_function@
declarer name module_param_call;
identifier _name, _set_func, _get_func;
expression _arg, _mode;
@@
module_param_call(_name, _set_func, _get_func, _arg, _mode);
@fix_set_prototype
depends on match_module_param_call_function@
identifier match_module_param_call_function._set_func;
identifier _val, _param;
type _val_type, _param_type;
@@
int _set_func(
-_val_type _val
+const char * _val
,
-_param_type _param
+const struct kernel_param * _param
) { ... }
@fix_get_prototype
depends on match_module_param_call_function@
identifier match_module_param_call_function._get_func;
identifier _val, _param;
type _val_type, _param_type;
@@
int _get_func(
-_val_type _val
+char * _val
,
-_param_type _param
+const struct kernel_param * _param
) { ... }
Two additional by-hand changes are included for places where the above
Coccinelle script didn't notice them:
drivers/platform/x86/thinkpad_acpi.c
fs/lockd/svc.c
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
Pull SELinux updates from Paul Moore:
"Seven SELinux patches for v4.15, although five of the seven are small
build fixes and cleanups.
Of the remaining two patches, the only one worth really calling out is
Eric's fix for the SELinux filesystem xattr set/remove code; the other
patch simply converts the SELinux hash table implementation to use
kmem_cache.
Eric's setxattr/removexattr tweak converts SELinux back to calling the
commoncap implementations when the xattr is not SELinux related. The
immediate win is to fixup filesystem capabilities in user namespaces,
but it makes things a bit saner overall; more information in the
commit description"
* tag 'selinux-pr-20171113' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
selinux: remove extraneous initialization of slots_used and max_chain_len
selinux: remove redundant assignment to len
selinux: remove redundant assignment to str
selinux: fix build warning
selinux: fix build warning by removing the unused sid variable
selinux: Perform both commoncap and selinux xattr checks
selinux: Use kmem_cache for hashtab_node
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Variables slots_used and max_chain_len are being initialized to zero
twice. Remove the second set of initializations in the for loop.
Cleans up the clang warnings:
Value stored to 'slots_used' is never read
Value stored to 'max_chain_len' is never read
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
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The variable len is being set to zero and this value is never
being read since len is being set to a different value just
a few lines later. Remove this redundant assignment. Cleans
up clang warning: Value stored to 'len' is never read
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
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str is being assigned to an empty string but str is never being
read after that, so the assignment is redundant and can be removed.
Moving the declaration of str to a more localised block, cleans up
clang warning: "Value stored to 'str' is never read"
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
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This patch make selinux_task_prlimit() static since it is not used
anywhere else.
This fix the following build warning:
security/selinux/hooks.c:3981:5: warning: no previous prototype for 'selinux_task_prlimit' [-Wmissing-prototypes]
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Paul Moore <paul@paul-moore.com>
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This patch remove the unused variable sid
This fix the following build warning:
security/selinux/hooks.c:2921:6: warning: variable 'sid' set but not used [-Wunused-but-set-variable]
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Paul Moore <paul@paul-moore.com>
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When selinux is loaded the relax permission checks for writing
security.capable are not honored. Which keeps file capabilities
from being used in user namespaces.
Stephen Smalley <sds@tycho.nsa.gov> writes:
> Originally SELinux called the cap functions directly since there was no
> stacking support in the infrastructure and one had to manually stack a
> secondary module internally. inode_setxattr and inode_removexattr
> however were special cases because the cap functions would check
> CAP_SYS_ADMIN for any non-capability attributes in the security.*
> namespace, and we don't want to impose that requirement on setting
> security.selinux. Thus, we inlined the capabilities logic into the
> selinux hook functions and adapted it appropriately.
Now that the permission checks in commoncap have evolved this
inlining of their contents has become a problem. So restructure
selinux_inode_removexattr, and selinux_inode_setxattr to call
both the corresponding cap_inode_ function and dentry_has_perm
when the attribute is not a selinux security xattr. This ensures
the policies of both commoncap and selinux are enforced.
This results in smack and selinux having the same basic structure
for setxattr and removexattr. Performing their own special permission
checks when it is their modules xattr being written to, and deferring
to commoncap when that is not the case. Then finally performing their
generic module policy on all xattr writes.
This structure is fine when you only consider stacking with the
commoncap lsm, but it becomes a problem if two lsms that don't want
the commoncap security checks on their own attributes need to be
stack. This means there will need to be updates in the future as lsm
stacking is improved, but at least now the structure between smack and
selinux is common making the code easier to refactor.
This change also has the effect that selinux_linux_setotherxattr becomes
unnecessary so it is removed.
Fixes: 8db6c34f1dbc ("Introduce v3 namespaced file capabilities")
Fixes: 7bbf0e052b76 ("[PATCH] selinux merge")
Historical Tree: https://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.git
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Reviewed-by: Serge Hallyn <serge@hallyn.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Paul Moore <paul@paul-moore.com>
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During random test as own device to check slub account,
we found some slack memory from hashtab_node(kmalloc-64).
By using kzalloc(), middle of test result like below:
allocated size 240768
request size 45144
slack size 195624
allocation count 3762
So, we want to use kmem_cache_zalloc() and that
can reduce memory size 52byte(slack size/alloc count) per each struct.
Signed-off-by: Kyeongdon Kim <kyeongdon.kim@lge.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
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Pull networking updates from David Miller:
"Highlights:
1) Maintain the TCP retransmit queue using an rbtree, with 1GB
windows at 100Gb this really has become necessary. From Eric
Dumazet.
2) Multi-program support for cgroup+bpf, from Alexei Starovoitov.
3) Perform broadcast flooding in hardware in mv88e6xxx, from Andrew
Lunn.
4) Add meter action support to openvswitch, from Andy Zhou.
5) Add a data meta pointer for BPF accessible packets, from Daniel
Borkmann.
6) Namespace-ify almost all TCP sysctl knobs, from Eric Dumazet.
7) Turn on Broadcom Tags in b53 driver, from Florian Fainelli.
8) More work to move the RTNL mutex down, from Florian Westphal.
9) Add 'bpftool' utility, to help with bpf program introspection.
From Jakub Kicinski.
10) Add new 'cpumap' type for XDP_REDIRECT action, from Jesper
Dangaard Brouer.
11) Support 'blocks' of transformations in the packet scheduler which
can span multiple network devices, from Jiri Pirko.
12) TC flower offload support in cxgb4, from Kumar Sanghvi.
13) Priority based stream scheduler for SCTP, from Marcelo Ricardo
Leitner.
14) Thunderbolt networking driver, from Amir Levy and Mika Westerberg.
15) Add RED qdisc offloadability, and use it in mlxsw driver. From
Nogah Frankel.
16) eBPF based device controller for cgroup v2, from Roman Gushchin.
17) Add some fundamental tracepoints for TCP, from Song Liu.
18) Remove garbage collection from ipv6 route layer, this is a
significant accomplishment. From Wei Wang.
19) Add multicast route offload support to mlxsw, from Yotam Gigi"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2177 commits)
tcp: highest_sack fix
geneve: fix fill_info when link down
bpf: fix lockdep splat
net: cdc_ncm: GetNtbFormat endian fix
openvswitch: meter: fix NULL pointer dereference in ovs_meter_cmd_reply_start
netem: remove unnecessary 64 bit modulus
netem: use 64 bit divide by rate
tcp: Namespace-ify sysctl_tcp_default_congestion_control
net: Protect iterations over net::fib_notifier_ops in fib_seq_sum()
ipv6: set all.accept_dad to 0 by default
uapi: fix linux/tls.h userspace compilation error
usbnet: ipheth: prevent TX queue timeouts when device not ready
vhost_net: conditionally enable tx polling
uapi: fix linux/rxrpc.h userspace compilation errors
net: stmmac: fix LPI transitioning for dwmac4
atm: horizon: Fix irq release error
net-sysfs: trigger netlink notification on ifalias change via sysfs
openvswitch: Using kfree_rcu() to simplify the code
openvswitch: Make local function ovs_nsh_key_attr_size() static
openvswitch: Fix return value check in ovs_meter_cmd_features()
...
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Simple cases of overlapping changes in the packet scheduler.
Must easier to resolve this time.
Which probably means that I screwed it up somehow.
Signed-off-by: David S. Miller <davem@davemloft.net>
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This is non-functional change to prepare the device cgroup code
for adding eBPF-based controller for cgroups v2.
The patch performs the following changes:
1) __devcgroup_inode_permission() and devcgroup_inode_mknod()
are moving to the device-cgroup.h and converting into static inline.
2) __devcgroup_check_permission() is exported.
3) devcgroup_check_permission() wrapper is introduced to be used
by both existing and new bpf-based implementations.
Signed-off-by: Roman Gushchin <guro@fb.com>
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Rename device type and access type constants defined in
security/device_cgroup.c by adding the DEVCG_ prefix.
The reason behind this renaming is to make them global namespace
friendly, as they will be moved to the corresponding header file
by following patches.
Signed-off-by: Roman Gushchin <guro@fb.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Tejun Heo <tj@kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Files removed in 'net-next' had their license header updated
in 'net'. We take the remove from 'net-next'.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Several conflicts here.
NFP driver bug fix adding nfp_netdev_is_nfp_repr() check to
nfp_fl_output() needed some adjustments because the code block is in
an else block now.
Parallel additions to net/pkt_cls.h and net/sch_generic.h
A bug fix in __tcp_retransmit_skb() conflicted with some of
the rbtree changes in net-next.
The tc action RCU callback fixes in 'net' had some overlap with some
of the recent tcf_block reworking.
Signed-off-by: David S. Miller <davem@davemloft.net>
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There were quite a few overlapping sets of changes here.
Daniel's bug fix for off-by-ones in the new BPF branch instructions,
along with the added allowances for "data_end > ptr + x" forms
collided with the metadata additions.
Along with those three changes came veritifer test cases, which in
their final form I tried to group together properly. If I had just
trimmed GIT's conflict tags as-is, this would have split up the
meta tests unnecessarily.
In the socketmap code, a set of preemption disabling changes
overlapped with the rename of bpf_compute_data_end() to
bpf_compute_data_pointers().
Changes were made to the mv88e6060.c driver set addr method
which got removed in net-next.
The hyperv transport socket layer had a locking change in 'net'
which overlapped with a change of socket state macro usage
in 'net-next'.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Introduce a bpf object related check when sending and receiving files
through unix domain socket as well as binder. It checks if the receiving
process have privilege to read/write the bpf map or use the bpf program.
This check is necessary because the bpf maps and programs are using a
anonymous inode as their shared inode so the normal way of checking the
files and sockets when passing between processes cannot work properly on
eBPF object. This check only works when the BPF_SYSCALL is configured.
Signed-off-by: Chenbo Feng <fengc@google.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Reviewed-by: James Morris <james.l.morris@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Implement the actual checks introduced to eBPF related syscalls. This
implementation use the security field inside bpf object to store a sid that
identify the bpf object. And when processes try to access the object,
selinux will check if processes have the right privileges. The creation
of eBPF object are also checked at the general bpf check hook and new
cmd introduced to eBPF domain can also be checked there.
Signed-off-by: Chenbo Feng <fengc@google.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: James Morris <james.l.morris@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Introduce several LSM hooks for the syscalls that will allow the
userspace to access to eBPF object such as eBPF programs and eBPF maps.
The security check is aimed to enforce a per object security protection
for eBPF object so only processes with the right priviliges can
read/write to a specific map or use a specific eBPF program. Besides
that, a general security hook is added before the multiplexer of bpf
syscall to check the cmd and the attribute used for the command. The
actual security module can decide which command need to be checked and
how the cmd should be checked.
Signed-off-by: Chenbo Feng <fengc@google.com>
Acked-by: James Morris <james.l.morris@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
"Here is the crypto update for 4.15:
API:
- Disambiguate EBUSY when queueing crypto request by adding ENOSPC.
This change touches code outside the crypto API.
- Reset settings when empty string is written to rng_current.
Algorithms:
- Add OSCCA SM3 secure hash.
Drivers:
- Remove old mv_cesa driver (replaced by marvell/cesa).
- Enable rfc3686/ecb/cfb/ofb AES in crypto4xx.
- Add ccm/gcm AES in crypto4xx.
- Add support for BCM7278 in iproc-rng200.
- Add hash support on Exynos in s5p-sss.
- Fix fallback-induced error in vmx.
- Fix output IV in atmel-aes.
- Fix empty GCM hash in mediatek.
Others:
- Fix DoS potential in lib/mpi.
- Fix potential out-of-order issues with padata"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (162 commits)
lib/mpi: call cond_resched() from mpi_powm() loop
crypto: stm32/hash - Fix return issue on update
crypto: dh - Remove pointless checks for NULL 'p' and 'g'
crypto: qat - Clean up error handling in qat_dh_set_secret()
crypto: dh - Don't permit 'key' or 'g' size longer than 'p'
crypto: dh - Don't permit 'p' to be 0
crypto: dh - Fix double free of ctx->p
hwrng: iproc-rng200 - Add support for BCM7278
dt-bindings: rng: Document BCM7278 RNG200 compatible
crypto: chcr - Replace _manual_ swap with swap macro
crypto: marvell - Add a NULL entry at the end of mv_cesa_plat_id_table[]
hwrng: virtio - Virtio RNG devices need to be re-registered after suspend/resume
crypto: atmel - remove empty functions
crypto: ecdh - remove empty exit()
MAINTAINERS: update maintainer for qat
crypto: caam - remove unused param of ctx_map_to_sec4_sg()
crypto: caam - remove unneeded edesc zeroization
crypto: atmel-aes - Reset the controller before each use
crypto: atmel-aes - properly set IV after {en,de}crypt
hwrng: core - Reset user selected rng by writing "" to rng_current
...
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ima starts several async crypto ops and waits for their completions.
Move it over to generic code doing the same.
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Acked-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner:
"Yet another big pile of changes:
- More year 2038 work from Arnd slowly reaching the point where we
need to think about the syscalls themself.
- A new timer function which allows to conditionally (re)arm a timer
only when it's either not running or the new expiry time is sooner
than the armed expiry time. This allows to use a single timer for
multiple timeout requirements w/o caring about the first expiry
time at the call site.
- A new NMI safe accessor to clock real time for the printk timestamp
work. Can be used by tracing, perf as well if required.
- A large number of timer setup conversions from Kees which got
collected here because either maintainers requested so or they
simply got ignored. As Kees pointed out already there are a few
trivial merge conflicts and some redundant commits which was
unavoidable due to the size of this conversion effort.
- Avoid a redundant iteration in the timer wheel softirq processing.
- Provide a mechanism to treat RTC implementations depending on their
hardware properties, i.e. don't inflict the write at the 0.5
seconds boundary which originates from the PC CMOS RTC to all RTCs.
No functional change as drivers need to be updated separately.
- The usual small updates to core code clocksource drivers. Nothing
really exciting"
* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (111 commits)
timers: Add a function to start/reduce a timer
pstore: Use ktime_get_real_fast_ns() instead of __getnstimeofday()
timer: Prepare to change all DEFINE_TIMER() callbacks
netfilter: ipvs: Convert timers to use timer_setup()
scsi: qla2xxx: Convert timers to use timer_setup()
block/aoe: discover_timer: Convert timers to use timer_setup()
ide: Convert timers to use timer_setup()
drbd: Convert timers to use timer_setup()
mailbox: Convert timers to use timer_setup()
crypto: Convert timers to use timer_setup()
drivers/pcmcia: omap1: Fix error in automated timer conversion
ARM: footbridge: Fix typo in timer conversion
drivers/sgi-xp: Convert timers to use timer_setup()
drivers/pcmcia: Convert timers to use timer_setup()
drivers/memstick: Convert timers to use timer_setup()
drivers/macintosh: Convert timers to use timer_setup()
hwrng/xgene-rng: Convert timers to use timer_setup()
auxdisplay: Convert timers to use timer_setup()
sparc/led: Convert timers to use timer_setup()
mips: ip22/32: Convert timers to use timer_setup()
...
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Drop the arguments from the macro and adjust all callers with the
following script:
perl -pi -e 's/DEFINE_TIMER\((.*), 0, 0\);/DEFINE_TIMER($1);/g;' \
$(git grep DEFINE_TIMER | cut -d: -f1 | sort -u | grep -v timer.h)
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> # for m68k parts
Acked-by: Guenter Roeck <linux@roeck-us.net> # for watchdog parts
Acked-by: David S. Miller <davem@davemloft.net> # for networking parts
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Kalle Valo <kvalo@codeaurora.org> # for wireless parts
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: linux-mips@linux-mips.org
Cc: Petr Mladek <pmladek@suse.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: Sebastian Reichel <sre@kernel.org>
Cc: Kalle Valo <kvalo@qca.qualcomm.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: linux1394-devel@lists.sourceforge.net
Cc: Chris Metcalf <cmetcalf@mellanox.com>
Cc: linux-s390@vger.kernel.org
Cc: linux-wireless@vger.kernel.org
Cc: "James E.J. Bottomley" <jejb@linux.vnet.ibm.com>
Cc: Wim Van Sebroeck <wim@iguana.be>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Ursula Braun <ubraun@linux.vnet.ibm.com>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Harish Patil <harish.patil@cavium.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Michael Reed <mdr@sgi.com>
Cc: Manish Chopra <manish.chopra@cavium.com>
Cc: Len Brown <len.brown@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: linux-pm@vger.kernel.org
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Mark Gross <mark.gross@intel.com>
Cc: linux-watchdog@vger.kernel.org
Cc: linux-scsi@vger.kernel.org
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Stefan Richter <stefanr@s5r6.in-berlin.de>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: netdev@vger.kernel.org
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Link: https://lkml.kernel.org/r/1507159627-127660-11-git-send-email-keescook@chromium.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core locking updates from Ingo Molnar:
"The main changes in this cycle are:
- Another attempt at enabling cross-release lockdep dependency
tracking (automatically part of CONFIG_PROVE_LOCKING=y), this time
with better performance and fewer false positives. (Byungchul Park)
- Introduce lockdep_assert_irqs_enabled()/disabled() and convert
open-coded equivalents to lockdep variants. (Frederic Weisbecker)
- Add down_read_killable() and use it in the VFS's iterate_dir()
method. (Kirill Tkhai)
- Convert remaining uses of ACCESS_ONCE() to
READ_ONCE()/WRITE_ONCE(). Most of the conversion was Coccinelle
driven. (Mark Rutland, Paul E. McKenney)
- Get rid of lockless_dereference(), by strengthening Alpha atomics,
strengthening READ_ONCE() with smp_read_barrier_depends() and thus
being able to convert users of lockless_dereference() to
READ_ONCE(). (Will Deacon)
- Various micro-optimizations:
- better PV qspinlocks (Waiman Long),
- better x86 barriers (Michael S. Tsirkin)
- better x86 refcounts (Kees Cook)
- ... plus other fixes and enhancements. (Borislav Petkov, Juergen
Gross, Miguel Bernal Marin)"
* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (70 commits)
locking/x86: Use LOCK ADD for smp_mb() instead of MFENCE
rcu: Use lockdep to assert IRQs are disabled/enabled
netpoll: Use lockdep to assert IRQs are disabled/enabled
timers/posix-cpu-timers: Use lockdep to assert IRQs are disabled/enabled
sched/clock, sched/cputime: Use lockdep to assert IRQs are disabled/enabled
irq_work: Use lockdep to assert IRQs are disabled/enabled
irq/timings: Use lockdep to assert IRQs are disabled/enabled
perf/core: Use lockdep to assert IRQs are disabled/enabled
x86: Use lockdep to assert IRQs are disabled/enabled
smp/core: Use lockdep to assert IRQs are disabled/enabled
timers/hrtimer: Use lockdep to assert IRQs are disabled/enabled
timers/nohz: Use lockdep to assert IRQs are disabled/enabled
workqueue: Use lockdep to assert IRQs are disabled/enabled
irq/softirqs: Use lockdep to assert IRQs are disabled/enabled
locking/lockdep: Add IRQs disabled/enabled assertion APIs: lockdep_assert_irqs_enabled()/disabled()
locking/pvqspinlock: Implement hybrid PV queued/unfair locks
locking/rwlocks: Fix comments
x86/paravirt: Set up the virt_spin_lock_key after static keys get initialized
block, locking/lockdep: Assign a lock_class per gendisk used for wait_for_completion()
workqueue: Remove now redundant lock acquisitions wrt. workqueue flushes
...
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Conflicts:
include/linux/compiler-clang.h
include/linux/compiler-gcc.h
include/linux/compiler-intel.h
include/uapi/linux/stddef.h
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Signed-off-by: Ingo Molnar <mingo@kernel.org>
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with lockdep
The lockdep subsystem provides a robust way to assert that a lock is
held, so use that instead of write_can_lock, which can give incorrect
results for qrwlocks.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: John Johansen <john.johansen@canonical.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: paulmck@linux.vnet.ibm.com
Link: http://lkml.kernel.org/r/1507055129-12300-1-git-send-email-will.deacon@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull security subsystem integrity updates from James Morris:
"There is a mixture of bug fixes, code cleanup, preparatory code for
new functionality and new functionality.
Commit 26ddabfe96bb ("evm: enable EVM when X509 certificate is
loaded") enabled EVM without loading a symmetric key, but was limited
to defining the x509 certificate pathname at build. Included in this
set of patches is the ability of enabling EVM, without loading the EVM
symmetric key, from userspace. New is the ability to prevent the
loading of an EVM symmetric key."
* 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
ima: Remove redundant conditional operator
ima: Fix bool initialization/comparison
ima: check signature enforcement against cmdline param instead of CONFIG
module: export module signature enforcement status
ima: fix hash algorithm initialization
EVM: Only complain about a missing HMAC key once
EVM: Allow userspace to signal an RSA key has been loaded
EVM: Include security.apparmor in EVM measurements
ima: call ima_file_free() prior to calling fasync
integrity: use kernel_read_file_from_path() to read x509 certs
ima: always measure and audit files in policy
ima: don't remove the securityfs policy file
vfs: fix mounting a filesystem with i_version
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A non-zero value is converted to 1 when assigned to a bool variable, so the
conditional operator in is_ima_appraise_enabled is redundant.
The value of a comparison operator is either 1 or 0 so the conditional
operator in ima_inode_setxattr is redundant as well.
Confirmed that the patch is correct by comparing the object file from
before and after the patch. They are identical.
Signed-off-by: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
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Bool initializations should use true and false. Bool tests don't need
comparisons.
Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
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When the user requests MODULE_CHECK policy and its kernel is compiled
with CONFIG_MODULE_SIG_FORCE not set, all modules would not load, just
those loaded in initram time. One option the user would have would be
set a kernel cmdline param (module.sig_enforce) to true, but the IMA
module check code doesn't rely on this value, it checks just
CONFIG_MODULE_SIG_FORCE.
This patch solves this problem checking for the exported value of
module.sig_enforce cmdline param intead of CONFIG_MODULE_SIG_FORCE,
which holds the effective value (CONFIG || param).
Signed-off-by: Bruno E. O. Meneguele <brdeoliv@redhat.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
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The hash_setup function always sets the hash_setup_done flag, even
when the hash algorithm is invalid. This prevents the default hash
algorithm defined as CONFIG_IMA_DEFAULT_HASH from being used.
This patch sets hash_setup_done flag only for valid hash algorithms.
Fixes: e7a2ad7eb6f4 "ima: enable support for larger default filedata hash
algorithms"
Signed-off-by: Boshi Wang <wangboshi@huawei.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
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