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* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2018-06-031-1/+1
|\ | | | | | | | | | | | | | | Filling in the padding slot in the bpf structure as a bug fix in 'ne' overlapped with actually using that padding area for something in 'net-next'. Signed-off-by: David S. Miller <davem@davemloft.net>
| * Merge tag 'selinux-pr-20180530' of ↵Linus Torvalds2018-05-301-1/+1
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux Pull SELinux fix from Paul Moore: "One more small fix for SELinux: a small string length fix found by KASAN. I dislike sending patches this late in the release cycle, but this patch fixes a legitimate problem, is very small, limited in scope, and well understood. There are two threads with more information on the problem, the latest is linked below: https://marc.info/?t=152723737400001&r=1&w=2 Stephen points out in the thread linked above: 'Such a setxattr() call can only be performed by a process with CAP_MAC_ADMIN that is also allowed mac_admin permission in SELinux policy. Consequently, this is never possible on Android (no process is allowed mac_admin permission, always enforcing) and is only possible in Fedora/RHEL for a few domains (if enforcing)'" * tag 'selinux-pr-20180530' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux: selinux: KASAN: slab-out-of-bounds in xattr_getsecurity
| | * selinux: KASAN: slab-out-of-bounds in xattr_getsecuritySachin Grover2018-05-301-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Call trace: [<ffffff9203a8d7a8>] dump_backtrace+0x0/0x428 [<ffffff9203a8dbf8>] show_stack+0x28/0x38 [<ffffff920409bfb8>] dump_stack+0xd4/0x124 [<ffffff9203d187e8>] print_address_description+0x68/0x258 [<ffffff9203d18c00>] kasan_report.part.2+0x228/0x2f0 [<ffffff9203d1927c>] kasan_report+0x5c/0x70 [<ffffff9203d1776c>] check_memory_region+0x12c/0x1c0 [<ffffff9203d17cdc>] memcpy+0x34/0x68 [<ffffff9203d75348>] xattr_getsecurity+0xe0/0x160 [<ffffff9203d75490>] vfs_getxattr+0xc8/0x120 [<ffffff9203d75d68>] getxattr+0x100/0x2c8 [<ffffff9203d76fb4>] SyS_fgetxattr+0x64/0xa0 [<ffffff9203a83f70>] el0_svc_naked+0x24/0x28 If user get root access and calls security.selinux setxattr() with an embedded NUL on a file and then if some process performs a getxattr() on that file with a length greater than the actual length of the string, it would result in a panic. To fix this, add the actual length of the string to the security context instead of the length passed by the userspace process. Signed-off-by: Sachin Grover <sgrover@codeaurora.org> Cc: stable@vger.kernel.org Signed-off-by: Paul Moore <paul@paul-moore.com>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2018-05-271-4/+16
|\| | | | | | | | | | | | | | | | | | | | Lots of easy overlapping changes in the confict resolutions here. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds2018-05-211-4/+16
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull vfs fixes from Al Viro: "Assorted fixes all over the place" * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: aio: fix io_destroy(2) vs. lookup_ioctx() race ext2: fix a block leak nfsd: vfs_mkdir() might succeed leaving dentry negative unhashed cachefiles: vfs_mkdir() might succeed leaving dentry negative unhashed unfuck sysfs_mount() kernfs: deal with kernfs_fill_super() failures cramfs: Fix IS_ENABLED typo befs_lookup(): use d_splice_alias() affs_lookup: switch to d_splice_alias() affs_lookup(): close a race with affs_remove_link() fix breakage caused by d_find_alias() semantics change fs: don't scan the inode cache before SB_BORN is set do d_instantiate/unlock_new_inode combinations safely iov_iter: fix memory leak in pipe_get_pages_alloc() iov_iter: fix return type of __pipe_get_pages()
| | * | fix breakage caused by d_find_alias() semantics changeAl Viro2018-05-131-4/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "VFS: don't keep disconnected dentries on d_anon" had a non-trivial side-effect - d_unhashed() now returns true for those dentries, making d_find_alias() skip them altogether. For most of its callers that's fine - we really want a connected alias there. However, there is a codepath where we relied upon picking such aliases if nothing else could be found - selinux delayed initialization of contexts for inodes on already mounted filesystems used to rely upon that. Cc: stable@kernel.org # f1ee616214cb "VFS: don't keep disconnected dentries on d_anon" Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2018-05-211-22/+28
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | S390 bpf_jit.S is removed in net-next and had changes in 'net', since that code isn't used any more take the removal. TLS data structures split the TX and RX components in 'net-next', put the new struct members from the bug fix in 'net' into the RX part. The 'net-next' tree had some reworking of how the ERSPAN code works in the GRE tunneling code, overlapping with a one-line headroom calculation fix in 'net'. Overlapping changes in __sock_map_ctx_update_elem(), keep the bits that read the prog members via READ_ONCE() into local variables before using them. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | Merge tag 'selinux-pr-20180516' of ↵Linus Torvalds2018-05-171-22/+28
| |\ \ \ | | | |/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux Pull SELinux fixes from Paul Moore: "A small pull request to fix a few regressions in the SELinux/SCTP code with applications that call bind() with AF_UNSPEC/INADDR_ANY. The individual commit descriptions have more information, but the commits themselves should be self explanatory" * tag 'selinux-pr-20180516' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux: selinux: correctly handle sa_family cases in selinux_sctp_bind_connect() selinux: fix address family in bind() and connect() to match address/port selinux: add AF_UNSPEC and INADDR_ANY checks to selinux_socket_bind()
| | * | selinux: correctly handle sa_family cases in selinux_sctp_bind_connect()Alexey Kodanev2018-05-141-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Allow to pass the socket address structure with AF_UNSPEC family for compatibility purposes. selinux_socket_bind() will further check it for INADDR_ANY and selinux_socket_connect_helper() should return EINVAL. For a bad address family return EINVAL instead of AFNOSUPPORT error, i.e. what is expected from SCTP protocol in such case. Fixes: d452930fd3b9 ("selinux: Add SCTP support") Suggested-by: Paul Moore <paul@paul-moore.com> Signed-off-by: Alexey Kodanev <alexey.kodanev@oracle.com> Signed-off-by: Paul Moore <paul@paul-moore.com>
| | * | selinux: fix address family in bind() and connect() to match address/portAlexey Kodanev2018-05-141-11/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since sctp_bindx() and sctp_connectx() can have multiple addresses, sk_family can differ from sa_family. Therefore, selinux_socket_bind() and selinux_socket_connect_helper(), which process sockaddr structure (address and port), should use the address family from that structure too, and not from the socket one. The initialization of the data for the audit record is moved above, in selinux_socket_bind(), so that there is no duplicate changes and code. Fixes: d452930fd3b9 ("selinux: Add SCTP support") Suggested-by: Paul Moore <paul@paul-moore.com> Signed-off-by: Alexey Kodanev <alexey.kodanev@oracle.com> Signed-off-by: Paul Moore <paul@paul-moore.com>
| | * | selinux: add AF_UNSPEC and INADDR_ANY checks to selinux_socket_bind()Alexey Kodanev2018-05-141-10/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit d452930fd3b9 ("selinux: Add SCTP support") breaks compatibility with the old programs that can pass sockaddr_in structure with AF_UNSPEC and INADDR_ANY to bind(). As a result, bind() returns EAFNOSUPPORT error. This was found with LTP/asapi_01 test. Similar to commit 29c486df6a20 ("net: ipv4: relax AF_INET check in bind()"), which relaxed AF_INET check for compatibility, add AF_UNSPEC case to AF_INET and make sure that the address is INADDR_ANY. Fixes: d452930fd3b9 ("selinux: Add SCTP support") Signed-off-by: Alexey Kodanev <alexey.kodanev@oracle.com> Signed-off-by: Paul Moore <paul@paul-moore.com>
* | | | net: initial AF_XDP skeletonBjörn Töpel2018-05-042-2/+6
|/ / / | | | | | | | | | | | | | | | | | | | | | Buildable skeleton of AF_XDP without any functionality. Just what it takes to register a new address family. Signed-off-by: Björn Töpel <bjorn.topel@intel.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
* | | Merge branch 'userns-linus' of ↵Linus Torvalds2018-04-251-0/+2
|\ \ \ | |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace Pull userns bug fix from Eric Biederman: "Just a small fix to properly set the return code on error" * 'userns-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: commoncap: Handle memory allocation failure.
| * | commoncap: Handle memory allocation failure.Tetsuo Handa2018-04-111-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | syzbot is reporting NULL pointer dereference at xattr_getsecurity() [1], for cap_inode_getsecurity() is returning sizeof(struct vfs_cap_data) when memory allocation failed. Return -ENOMEM if memory allocation failed. [1] https://syzkaller.appspot.com/bug?id=a55ba438506fe68649a5f50d2d82d56b365e0107 Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Fixes: 8db6c34f1dbc8e06 ("Introduce v3 namespaced file capabilities") Reported-by: syzbot <syzbot+9369930ca44f29e60e2d@syzkaller.appspotmail.com> Cc: stable <stable@vger.kernel.org> # 4.14+ Acked-by: Serge E. Hallyn <serge@hallyn.com> Acked-by: James Morris <james.morris@microsoft.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
* | | Merge tag 'apparmor-pr-2018-04-10' of ↵Linus Torvalds2018-04-1432-523/+2117
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor Pull apparmor updates from John Johansen: "Features: - add base infrastructure for socket mediation. ABI bump and additional checks to ensure only v8 compliant policy uses socket af mediation. - improve and cleanup dfa verification - improve profile attachment logic - improve overlapping expression handling - add the xattr matching to the attachment logic - improve signal mediation handling with stacked labels - improve handling of no_new_privs in a label stack Cleanups and changes: - use dfa to parse string split - bounded version of label_parse - proper line wrap nulldfa.in - split context out into task and cred naming to better match usage - simplify code in aafs Bug fixes: - fix display of .ns_name for containers - fix resource audit messages when auditing peer - fix logging of the existence test for signals - fix resource audit messages when auditing peer - fix display of .ns_name for containers - fix an error code in verify_table_headers() - fix memory leak on buffer on error exit path - fix error returns checks by making size a ssize_t" * tag 'apparmor-pr-2018-04-10' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor: (36 commits) apparmor: fix memory leak on buffer on error exit path apparmor: fix dangling symlinks to policy rawdata after replacement apparmor: Fix an error code in verify_table_headers() apparmor: fix error returns checks by making size a ssize_t apparmor: update MAINTAINERS file git and wiki locations apparmor: remove POLICY_MEDIATES_SAFE apparmor: add base infastructure for socket mediation apparmor: improve overlapping domain attachment resolution apparmor: convert attaching profiles via xattrs to use dfa matching apparmor: Add support for attaching profiles via xattr, presence and value apparmor: cleanup: simplify code to get ns symlink name apparmor: cleanup create_aafs() error path apparmor: dfa split verification of table headers apparmor: dfa add support for state differential encoding apparmor: dfa move character match into a macro apparmor: update domain transitions that are subsets of confinement at nnp apparmor: move context.h to cred.h apparmor: move task related defines and fns to task.X files apparmor: cleanup, drop unused fn __aa_task_is_confined() apparmor: cleanup fixup description of aa_replace_profiles ...
| * | | apparmor: fix memory leak on buffer on error exit pathColin Ian King2018-03-311-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently on the error exit path the allocated buffer is not free'd causing a memory leak. Fix this by kfree'ing it. Detected by CoverityScan, CID#1466876 ("Resource leaks") Fixes: 1180b4c757aa ("apparmor: fix dangling symlinks to policy rawdata after replacement") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: John Johansen <john.johansen@canonical.com>
| * | | apparmor: fix dangling symlinks to policy rawdata after replacementJohn Johansen2018-03-241-31/+95
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When policy replacement occurs the symlinks in the profile directory need to be updated to point to the new rawdata, otherwise once the old rawdata is removed the symlink becomes broken. Fix this by dynamically generating the symlink everytime it is read. These links are used enough that their value needs to be cached and this way we can avoid needing locking to read and update the link value. Fixes: a481f4d917835 ("apparmor: add custom apparmorfs that will be used by policy namespace files") BugLink: http://bugs.launchpad.net/bugs/1755563 Signed-off-by: John Johansen <john.johansen@canonical.com>
| * | | apparmor: Fix an error code in verify_table_headers()Dan Carpenter2018-03-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We accidentally return a positive EPROTO instead of a negative -EPROTO. Since 71 is not an error pointer, that means it eventually results in an Oops in the caller. Fixes: d901d6a298dc ("apparmor: dfa split verification of table headers") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: John Johansen <john.johansen@canonical.com>
| * | | apparmor: fix error returns checks by making size a ssize_tColin Ian King2018-03-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently variable size is a unsigned size_t, hence comparisons to see if it is less than zero (for error checking) will always be false. Fix this by making size a ssize_t Detected by CoverityScan, CID#1466080 ("Unsigned compared against 0") Fixes: 8e51f9087f40 ("apparmor: Add support for attaching profiles via xattr, presence and value") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: John Johansen <john.johansen@canonical.com>
| * | | apparmor: remove POLICY_MEDIATES_SAFEJohn Johansen2018-03-142-12/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The unpack code now makes sure every profile has a dfa so the safe version of POLICY_MEDIATES is no longer needed. Signed-off-by: John Johansen <john.johansen@canonical.com>
| * | | apparmor: add base infastructure for socket mediationJohn Johansen2018-03-1413-8/+786
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | version 2 - Force an abi break. Network mediation will only be available in v8 abi complaint policy. Provide a basic mediation of sockets. This is not a full net mediation but just whether a spcific family of socket can be used by an application, along with setting up some basic infrastructure for network mediation to follow. the user space rule hav the basic form of NETWORK RULE = [ QUALIFIERS ] 'network' [ DOMAIN ] [ TYPE | PROTOCOL ] DOMAIN = ( 'inet' | 'ax25' | 'ipx' | 'appletalk' | 'netrom' | 'bridge' | 'atmpvc' | 'x25' | 'inet6' | 'rose' | 'netbeui' | 'security' | 'key' | 'packet' | 'ash' | 'econet' | 'atmsvc' | 'sna' | 'irda' | 'pppox' | 'wanpipe' | 'bluetooth' | 'netlink' | 'unix' | 'rds' | 'llc' | 'can' | 'tipc' | 'iucv' | 'rxrpc' | 'isdn' | 'phonet' | 'ieee802154' | 'caif' | 'alg' | 'nfc' | 'vsock' | 'mpls' | 'ib' | 'kcm' ) ',' TYPE = ( 'stream' | 'dgram' | 'seqpacket' | 'rdm' | 'raw' | 'packet' ) PROTOCOL = ( 'tcp' | 'udp' | 'icmp' ) eg. network, network inet, Signed-off-by: John Johansen <john.johansen@canonical.com> Acked-by: Seth Arnold <seth.arnold@canonical.com>
| * | | apparmor: improve overlapping domain attachment resolutionJohn Johansen2018-02-094-14/+158
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Overlapping domain attachments using the current longest left exact match fail in some simple cases, and with the fix to ensure consistent behavior by failing unresolvable attachments it becomes important to do a better job. eg. under the current match the following are unresolvable where the alternation is clearly a better match under the most specific left match rule. /** /{bin/,}usr/ Use a counting match that detects when a loop in the state machine is enter, and return the match count to provide a better specific left match resolution. Signed-off-by: John Johansen <john.johansen@canonical.com>
| * | | apparmor: convert attaching profiles via xattrs to use dfa matchingJohn Johansen2018-02-095-57/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This converts profile attachment based on xattrs to a fixed extended conditional using dfa matching. This has a couple of advantages - pattern matching can be used for the xattr match - xattrs can be optional for an attachment or marked as required - the xattr attachment conditional will be able to be combined with other extended conditionals when the flexible extended conditional work lands. The xattr fixed extended conditional is appended to the xmatch conditional. If an xattr attachment is specified the profile xmatch will be generated regardless of whether there is a pattern match on the executable name. Signed-off-by: John Johansen <john.johansen@canonical.com> Acked-by: Seth Arnold <seth.arnold@canonical.com>
| * | | apparmor: Add support for attaching profiles via xattr, presence and valueMatthew Garrett2018-02-094-34/+217
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make it possible to tie Apparmor profiles to the presence of one or more extended attributes, and optionally their values. An example usecase for this is to automatically transition to a more privileged Apparmor profile if an executable has a valid IMA signature, which can then be appraised by the IMA subsystem. Signed-off-by: Matthew Garrett <mjg59@google.com> Signed-off-by: John Johansen <john.johansen@canonical.com>
| * | | apparmor: cleanup: simplify code to get ns symlink nameJohn Johansen2018-02-091-19/+6
| | | | | | | | | | | | | | | | | | | | | | | | ns_get_name() is called in only one place and can be folded in. Signed-off-by: John Johansen <john.johansen@canonical.com>
| * | | apparmor: cleanup create_aafs() error pathJohn Johansen2018-02-091-20/+12
| | | | | | | | | | | | | | | | Signed-off-by: John Johansen <john.johansen@canonical.com>
| * | | apparmor: dfa split verification of table headersJohn Johansen2018-02-091-48/+68
| | | | | | | | | | | | | | | | | | | | | | | | | | | | separate the different types of verification so they are logically separate and can be reused separate of each other. Signed-off-by: John Johansen <john.johansen@canonical.com>
| * | | apparmor: dfa add support for state differential encodingJohn Johansen2018-02-092-1/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | State differential encoding can provide better compression for apparmor policy, without having significant impact on match time. Signed-off-by: John Johansen <john.johansen@canonical.com>
| * | | apparmor: dfa move character match into a macroJohn Johansen2018-02-091-47/+27
| | | | | | | | | | | | | | | | Signed-off-by: John Johansen <john.johansen@canonical.com>
| * | | apparmor: update domain transitions that are subsets of confinement at nnpJohn Johansen2018-02-094-65/+110
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Domain transition so far have been largely blocked by no new privs, unless the transition has been provably a subset of the previous confinement. There was a couple problems with the previous implementations, - transitions that weren't explicitly a stack but resulted in a subset of confinement were disallowed - confinement subsets were only calculated from the previous confinement instead of the confinement being enforced at the time of no new privs, so transitions would have to get progressively tighter. Fix this by detecting and storing a reference to the task's confinement at the "time" no new privs is set. This reference is then used to determine whether a transition is a subsystem of the confinement at the time no new privs was set. Unfortunately the implementation is less than ideal in that we have to detect no new privs after the fact when a task attempts a domain transition. This is adequate for the currently but will not work in a stacking situation where no new privs could be conceivably be set in both the "host" and in the container. Signed-off-by: John Johansen <john.johansen@canonical.com>
| * | | apparmor: move context.h to cred.hJohn Johansen2018-02-0915-14/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that file contexts have been moved into file, and task context fns() and data have been split from the context, only the cred context remains in context.h so rename to cred.h to better reflect what it deals with. Signed-off-by: John Johansen <john.johansen@canonical.com>
| * | | apparmor: move task related defines and fns to task.X filesJohn Johansen2018-02-096-98/+105
| | | | | | | | | | | | | | | | Signed-off-by: John Johansen <john.johansen@canonical.com>
| * | | apparmor: cleanup, drop unused fn __aa_task_is_confined()John Johansen2018-02-091-11/+0
| | | | | | | | | | | | | | | | Signed-off-by: John Johansen <john.johansen@canonical.com>
| * | | apparmor: cleanup fixup description of aa_replace_profilesJohn Johansen2018-02-091-2/+3
| | | | | | | | | | | | | | | | Signed-off-by: John Johansen <john.johansen@canonical.com>
| * | | apparmor: rename tctx to ctxJohn Johansen2018-02-093-30/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | now that cred_ctx has been removed we can rename task_ctxs from tctx without causing confusion. Signed-off-by: John Johansen <john.johansen@canonical.com>
| * | | apparmor: drop cred_ctx and reference the label directlyJohn Johansen2018-02-094-129/+47
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With the task domain change information now stored in the task->security context, the cred->security context only stores the label. We can get rid of the cred_ctx and directly reference the label, removing a layer of indirection, and unneeded extra allocations. Signed-off-by: John Johansen <john.johansen@canonical.com>
| * | | apparmor: move task domain change info to task securityJohn Johansen2018-02-094-52/+132
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The task domain change info is task specific and its and abuse of the cred to store the information in there. Now that a task->security field exists store it in the proper place. Signed-off-by: John Johansen <john.johansen@canonical.com>
| * | | apparmor: rename task_ctx to the more accurate cred_ctxJohn Johansen2018-02-095-46/+45
| | | | | | | | | | | | | | | | Signed-off-by: John Johansen <john.johansen@canonical.com>
| * | | apparmor: audit unknown signal numbersJohn Johansen2018-02-093-4/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Allow apparmor to audit the number of a signal that it does not provide a mapping for and is currently being reported only as unknown. Signed-off-by: John Johansen <john.johansen@canonical.com>
| * | | apparmor: make signal label match work when matching stacked labelsJohn Johansen2018-02-091-28/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Given a label with a profile stack of A//&B or A//&C ... A ptrace rule should be able to specify a generic trace pattern with a rule like signal send A//&**, however this is failing because while the correct label match routine is called, it is being done post label decomposition so it is always being done against a profile instead of the stacked label. To fix this refactor the cross check to pass the full peer label in to the label_match. Signed-off-by: John Johansen <john.johansen@canonical.com>
| * | | security: apparmor: remove duplicate includesPravin Shedge2018-02-091-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These duplicate includes have been found with scripts/checkincludes.pl but they have been removed manually to avoid removing false positives. Signed-off-by: Pravin Shedge <pravin.shedge4linux@gmail.com> Signed-off-by: John Johansen <john.johansen@canonical.com>
| * | | apparmor: root view labels should not be under user controlJohn Johansen2018-02-091-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The root view of the label parse should not be exposed to user control. Signed-off-by: John Johansen <john.johansen@canonical.com> Acked-by: Seth Arnold <seth.arnold@canonical.com>
| * | | apparmor: cleanup add proper line wrapping to nulldfa.inJohn Johansen2018-02-091-1/+107
| | | | | | | | | | | | | | | | | | | | | | | | | | | | nulldfa.in makes for a very long unwrapped line, which certain tools do not like. So add line breaks. Signed-off-by: John Johansen <john.johansen@canonical.com>
| * | | apparmor: provide a bounded version of label_parseJohn Johansen2018-02-092-11/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | some label/context sources might not be guaranteed to be null terminiated provide a size bounded version of label parse to deal with these. Signed-off-by: John Johansen <john.johansen@canonical.com> Acked-by: Seth Arnold <seth.arnold@canonical.com>
| * | | apparmor: use the dfa to do label parse string splittingJohn Johansen2018-02-095-11/+170
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current split scheme is actually wrong in that it splits ///& where that is invalid and should fail. Use the dfa to do a proper bounded split without having to worry about getting the string processing right in code. Signed-off-by: John Johansen <john.johansen@canonical.com> Acked-by: Seth Arnold <seth.arnold@canonical.com>
| * | | apparmor: add first substr match to dfaJohn Johansen2018-02-092-0/+124
| | | | | | | | | | | | | | | | | | | | Signed-off-by: John Johansen <john.johansen@canonical.com> Acked-by: Seth Arnold <seth.arnold@canonical.com>
| * | | apparmor: split load data into management struct and data blobJohn Johansen2018-02-092-4/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Splitting the management struct from the actual data blob will allow us in the future to do some sharing and other data reduction techniques like replacing the the raw data with compressed data. Prepare for this by separating the management struct from the data blob. Signed-off-by: John Johansen <john.johansen@canonical.com>
| * | | apparmor: fix logging of the existence test for signalsJohn Johansen2018-02-092-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The existence test is not being properly logged as the signal mapping maps it to the last entry in the named signal table. This is done to help catch bugs by making the 0 mapped signal value invalid so that we can catch the signal value not being filled in. When fixing the off-by-one comparision logic the reporting of the existence test was broken, because the logic behind the mapped named table was hidden. Fix this by adding a define for the name lookup and using it. Cc: Stable <stable@vger.kernel.org> Fixes: f7dc4c9a855a1 ("apparmor: fix off-by-one comparison on MAXMAPPED_SIG") Signed-off-by: John Johansen <john.johansen@canonical.com>
| * | | apparmor: fix resource audit messages when auditing peerJohn Johansen2018-02-091-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Resource auditing is using the peer field which is not available when the rlim data struct is used, because it is a different element of the same union. Accessing peer during resource auditing could cause garbage log entries or even oops the kernel. Move the rlim data block into the same struct as the peer field so they can be used together. CC: <stable@vger.kernel.org> Fixes: 86b92cb782b3 ("apparmor: move resource checks to using labels") Signed-off-by: John Johansen <john.johansen@canonical.com>
| * | | apparmor: fix display of .ns_name for containersJohn Johansen2018-02-091-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The .ns_name should not be virtualized by the current ns view. It needs to report the ns base name as that is being used during startup as part of determining apparmor policy namespace support. BugLink: http://bugs.launchpad.net/bugs/1746463 Fixes: d9f02d9c237aa ("apparmor: fix display of ns name") Cc: Stable <stable@vger.kernel.org> Reported-by: Serge Hallyn <serge@hallyn.com> Tested-by: Serge Hallyn <serge@hallyn.com> Signed-off-by: John Johansen <john.johansen@canonical.com>
generated by cgit v1.2.3 (git 2.39.1) at 2025-02-05 06:04:07 +0100