| Commit message (Collapse) | Author | Age | Files | Lines |
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'x86/vt-d', 'x86/amd' and 'core' into next
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A perfect driver would only call dev_iommu_priv_set() from its probe
callback. We've made it functionally correct to call it from the of_xlate
by adding a lock around that call.
lockdep assert that iommu_probe_device_lock is held to discourage misuse.
Exclude PPC kernels with CONFIG_FSL_PAMU turned on because FSL_PAMU uses a
global static for its priv and abuses priv for its domain.
Remove the pointless stores of NULL, all these are on paths where the core
code will free dev->iommu after the op returns.
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Tested-by: Hector Martin <marcan@marcan.st>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/5-v2-16e4def25ebb+820-iommu_fwspec_p1_jgg@nvidia.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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Nothing needs this pointer. Return a normal error code with the usual
IOMMU semantic that ENODEV means 'there is no IOMMU driver'.
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Acked-by: Rob Herring <robh@kernel.org>
Tested-by: Hector Martin <marcan@marcan.st>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/2-v2-16e4def25ebb+820-iommu_fwspec_p1_jgg@nvidia.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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This is not being used to pass ops, it is just a way to tell if an
iommu driver was probed. These days this can be detected directly via
device_iommu_mapped(). Call device_iommu_mapped() in the two places that
need to check it and remove the iommu parameter everywhere.
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Moritz Fischer <mdf@kernel.org>
Acked-by: Christoph Hellwig <hch@lst.de>
Acked-by: Rob Herring <robh@kernel.org>
Tested-by: Hector Martin <marcan@marcan.st>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/1-v2-16e4def25ebb+820-iommu_fwspec_p1_jgg@nvidia.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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Drop the pasid field, as all the information needed for sva domain
management has been moved to the newly added iommu_mm field.
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Vasant Hegde <vasant.hegde@amd.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Tina Zhang <tina.zhang@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20231027000525.1278806-7-tina.zhang@intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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Each mm bound to devices gets a PASID and corresponding sva domains
allocated in iommu_sva_bind_device(), which are referenced by iommu_mm
field of the mm. The PASID is released in __mmdrop(), while a sva domain
is released when no one is using it (the reference count is decremented
in iommu_sva_unbind_device()). However, although sva domains and their
PASID are separate objects such that their own life cycles could be
handled independently, an enqcmd use case may require releasing the
PASID in releasing the mm (i.e., once a PASID is allocated for a mm, it
will be permanently used by the mm and won't be released until the end
of mm) and only allows to drop the PASID after the sva domains are
released. To this end, mmgrab() is called in iommu_sva_domain_alloc() to
increment the mm reference count and mmdrop() is invoked in
iommu_domain_free() to decrement the mm reference count.
Since the required info of PASID and sva domains is kept in struct
iommu_mm_data of a mm, use mm->iommu_mm field instead of the old pasid
field in mm struct. The sva domain list is protected by iommu_sva_lock.
Besides, this patch removes mm_pasid_init(), as with the introduced
iommu_mm structure, initializing mm pasid in mm_init() is unnecessary.
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Vasant Hegde <vasant.hegde@amd.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Tina Zhang <tina.zhang@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20231027000525.1278806-6-tina.zhang@intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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Introduce iommu_mm_data structure to keep sva information (pasid and the
related sva domains). Add iommu_mm pointer, pointing to an instance of
iommu_mm_data structure, to mm.
Reviewed-by: Vasant Hegde <vasant.hegde@amd.com>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Tina Zhang <tina.zhang@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20231027000525.1278806-5-tina.zhang@intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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mm_get_enqcmd_pasid() should be used by architecture code and closely
related to learn the PASID value that the x86 ENQCMD operation should
use for the mm.
For the moment SMMUv3 uses this without any connection to ENQCMD, it
will be cleaned up similar to how the prior patch made VT-d use the
PASID argument of set_dev_pasid().
The motivation is to replace mm->pasid with an iommu private data
structure that is introduced in a later patch.
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Tina Zhang <tina.zhang@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20231027000525.1278806-4-tina.zhang@intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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Linus suggested that the kconfig here is confusing:
https://lore.kernel.org/all/CAHk-=wgUiAtiszwseM1p2fCJ+sC4XWQ+YN4TanFhUgvUqjr9Xw@mail.gmail.com/
Let's break it into three kconfigs controlling distinct things:
- CONFIG_IOMMU_MM_DATA controls if the mm_struct has the additional
fields for the IOMMU. Currently only PASID, but later patches store
a struct iommu_mm_data *
- CONFIG_ARCH_HAS_CPU_PASID controls if the arch needs the scheduling bit
for keeping track of the ENQCMD instruction. x86 will select this if
IOMMU_SVA is enabled
- IOMMU_SVA controls if the IOMMU core compiles in the SVA support code
for iommu driver use and the IOMMU exported API
This way ARM will not enable CONFIG_ARCH_HAS_CPU_PASID
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20231027000525.1278806-2-tina.zhang@intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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This will be useful for GPU drivers who want to keep page tables in a
pool so they can:
- keep freed page tables in a free pool and speed-up upcoming page
table allocations
- batch page table allocation instead of allocating one page at a time
- pre-reserve pages for page tables needed for map/unmap operations,
to ensure map/unmap operations don't try to allocate memory in paths
they're allowed to block or fail
It might also be valuable for other aspects of GPU and similar
use-cases, like fine-grained memory accounting and resource limiting.
We will extend the Arm LPAE format to support custom allocators in a
separate commit.
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/20231124142434.1577550-2-boris.brezillon@collabora.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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With the rest of the API internals converted, it's time to finally
tackle probe_device and how we bootstrap the per-device ops association
to begin with. This ends up being disappointingly straightforward, since
fwspec users are already doing it in order to find their of_xlate
callback, and it works out that we can easily do the equivalent for
other drivers too. Then shuffle the remaining awareness of iommu_ops
into the couple of core headers that still need it, and breathe a sigh
of relief.
Ding dong the bus ops are gone!
CC: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/a59011ef65b4b6657cb0b7a388d786b779b61305.1700589539.git.robin.murphy@arm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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Before we can allow drivers to coexist, we need to make sure that one
driver's domain ops can't misinterpret another driver's dev_iommu_priv
data. To that end, add a token to the domain so we can remember how it
was allocated - for now this may as well be the device ops, since they
still correlate 1:1 with drivers. We can trust ourselves for internal
default domain attachment, so add checks to cover all the public attach
interfaces.
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/097c6f30480e4efe12195d00ba0e84ea4837fb4c.1700589539.git.robin.murphy@arm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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struct optimistic_spin_node is private to the implementation.
Move it into the C file to ensure nothing is accessing it.
Signed-off-by: David Laight <david.laight@aculab.com>
Acked-by: Waiman Long <longman@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Pull block fixes from Jens Axboe:
"Fix for a badly numbered flag, and a regression fix for the badblocks
updates from this merge window"
* tag 'block-6.7-2023-12-29' of git://git.kernel.dk/linux:
block: renumber QUEUE_FLAG_HW_WC
badblocks: avoid checking invalid range in badblocks_check()
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For the QUEUE_FLAG_HW_WC to actually work, it needs to have a separate
number from QUEUE_FLAG_FUA, doh.
Fixes: 43c9835b144c ("block: don't allow enabling a cache on devices that don't support it")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20231226081524.180289-1-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- Revive proper alignment for the ksymtab and kcrctab sections
- Fix gen_compile_commands.py tool to resolve symbolic links
- Fix symbolic links to installed debug VDSO files
- Update MAINTAINERS
* tag 'kbuild-fixes-v6.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
linux/export: Ensure natural alignment of kcrctab array
kbuild: fix build ID symlinks to installed debug VDSO files
gen_compile_commands.py: fix path resolve with symlinks in it
MAINTAINERS: Add scripts/clang-tools to Kbuild section
linux/export: Fix alignment for 64-bit ksymtab entries
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The ___kcrctab section holds an array of 32-bit CRC values.
Add a .balign 4 to tell the linker the correct memory alignment.
Fixes: f3304ecd7f06 ("linux/export: use inline assembler to populate symbol CRCs")
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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An alignment of 4 bytes is wrong for 64-bit platforms which don't define
CONFIG_HAVE_ARCH_PREL32_RELOCATIONS (which then store 64-bit pointers).
Fix their alignment to 8 bytes.
Fixes: ddb5cdbafaaa ("kbuild: generate KSYMTAB entries by modpost")
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char / misc driver fixes from Greg KH:
"Here are a small number of various driver fixes for 6.7-rc7 that
normally come through the char-misc tree, and one debugfs fix as well.
Included in here are:
- iio and hid sensor driver fixes for a number of small things
- interconnect driver fixes
- brcm_nvmem driver fixes
- debugfs fix for previous fix
- guard() definition in device.h so that many subsystems can start
using it for 6.8-rc1 (requested by Dan Williams to make future
merges easier)
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-6.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (21 commits)
debugfs: initialize cancellations earlier
Revert "iio: hid-sensor-als: Add light color temperature support"
Revert "iio: hid-sensor-als: Add light chromaticity support"
nvmem: brcm_nvram: store a copy of NVRAM content
dt-bindings: nvmem: mxs-ocotp: Document fsl,ocotp
driver core: Add a guard() definition for the device_lock()
interconnect: qcom: icc-rpm: Fix peak rate calculation
iio: adc: MCP3564: fix hardware identification logic
iio: adc: MCP3564: fix calib_bias and calib_scale range checks
iio: adc: meson: add separate config for axg SoC family
iio: adc: imx93: add four channels for imx93 adc
iio: adc: ti_am335x_adc: Fix return value check of tiadc_request_dma()
interconnect: qcom: sm8250: Enable sync_state
iio: triggered-buffer: prevent possible freeing of wrong buffer
iio: imu: inv_mpu6050: fix an error code problem in inv_mpu6050_read_raw
iio: imu: adis16475: use bit numbers in assign_bit()
iio: imu: adis16475: add spi_device_id table
iio: tmag5273: fix temperature offset
interconnect: Treat xlate() returning NULL node as an error
iio: common: ms_sensors: ms_sensors_i2c: fix humidity conversion time table
...
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This reverts commit 5f05285df691b1e82108eead7165feae238c95ef.
This commit assumes that every HID descriptor for ALS sensor has
presence of usage id ID HID_USAGE_SENSOR_LIGHT_COLOR_TEMPERATURE.
When the above usage id is absent, driver probe fails. This breaks
ALS sensor functionality on many platforms.
Till we have a good solution, revert this commit.
Reported-by: Thomas Weißschuh <thomas@t-8ch.de>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218223
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: <stable@vger.kernel.org>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20231217200703.719876-3-srinivas.pandruvada@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This reverts commit ee3710f39f9d0ae5137a866138d005fe1ad18132.
This commit assumes that every HID descriptor for ALS sensor has
presence of usage id ID HID_USAGE_SENSOR_LIGHT_CHROMATICITY_X and
HID_USAGE_SENSOR_LIGHT_CHROMATICITY_Y. When the above usage ids are
absent, driver probe fails. This breaks ALS sensor functionality on
many platforms.
Till we have a good solution, revert this commit.
Reported-by: Thomas Weißschuh <thomas@t-8ch.de>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218223
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: <stable@vger.kernel.org>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20231217200703.719876-2-srinivas.pandruvada@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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At present there are ~200 usages of device_lock() in the kernel. Some of
those usages lead to "goto unlock;" patterns which have proven to be
error prone. Define a "device" guard() definition to allow for those to
be cleaned up and prevent new ones from appearing.
Link: http://lore.kernel.org/r/657897453dda8_269bd29492@dwillia2-mobl3.amr.corp.intel.com.notmuch
Link: http://lore.kernel.org/r/6577b0c2a02df_a04c5294bb@dwillia2-xfh.jf.intel.com.notmuch
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Link: https://lore.kernel.org/r/170250854466.1522182.17555361077409628655.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Pull 9p fixes from Dominique Martinet:
"Two small fixes scheduled for stable trees:
A tracepoint fix that's been reading past the end of messages forever,
but semi-recently also went over the end of the buffer. And a
potential incorrectly freeing garbage in pdu parsing error path"
* tag '9p-for-6.7-rc7' of https://github.com/martinetd/linux:
net: 9p: avoid freeing uninit memory in p9pdu_vreadf
9p: prevent read overrun in protocol dump tracepoint
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An out of bounds read can occur within the tracepoint 9p_protocol_dump. In
the fast assign, there is a memcpy that uses a constant size of 32 (macro
named P9_PROTO_DUMP_SZ). When the copy is invoked, the source buffer is not
guaranteed match this size. It was found that in some cases the source
buffer size is less than 32, resulting in a read that overruns.
The size of the source buffer seems to be known at the time of the
tracepoint being invoked. The allocations happen within p9_fcall_init(),
where the capacity field is set to the allocated size of the payload
buffer. This patch tries to fix the overrun by changing the fixed array to
a dynamically sized array and using the minimum of the capacity value or
P9_PROTO_DUMP_SZ as its length. The trace log statement is adjusted to
account for this. Note that the trace log no longer splits the payload on
the first 16 bytes. The full payload is now logged to a single line.
To repro the orignal problem, operations to a plan 9 managed resource can
be used. The simplest approach might just be mounting a shared filesystem
(between host and guest vm) using the plan 9 protocol while the tracepoint
is enabled.
mount -t 9p -o trans=virtio <mount_tag> <mount_path>
The bpftrace program below can be used to show the out of bounds read.
Note that a recent version of bpftrace is needed for the raw tracepoint
support. The script was tested using v0.19.0.
/* from include/net/9p/9p.h */
struct p9_fcall {
u32 size;
u8 id;
u16 tag;
size_t offset;
size_t capacity;
struct kmem_cache *cache;
u8 *sdata;
bool zc;
};
tracepoint:9p:9p_protocol_dump
{
/* out of bounds read can happen when this tracepoint is enabled */
}
rawtracepoint:9p_protocol_dump
{
$pdu = (struct p9_fcall *)arg1;
$dump_sz = (uint64)32;
if ($dump_sz > $pdu->capacity) {
printf("reading %zu bytes from src buffer of %zu bytes\n",
$dump_sz, $pdu->capacity);
}
}
Signed-off-by: JP Kobryn <inwardvessel@gmail.com>
Message-ID: <20231204202321.22730-1-inwardvessel@gmail.com>
Fixes: 60ece0833b6c ("net/9p: allocate appropriate reduced message buffers")
Cc: stable@vger.kernel.org
Reviewed-by: Christian Schoenebeck <linux_oss@crudebyte.com>
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
Pull AFS fixes from David Howells:
"Improve the interaction of arbitrary lookups in the AFS dynamic root
that hit DNS lookup failures [1] where kafs behaves differently from
openafs and causes some applications to fail that aren't expecting
that. Further, negative DNS results aren't getting removed and are
causing failures to persist.
- Always delete unused (particularly negative) dentries as soon as
possible so that they don't prevent future lookups from retrying.
- Fix the handling of new-style negative DNS lookups in ->lookup() to
make them return ENOENT so that userspace doesn't get confused when
stat succeeds but the following open on the looked up file then
fails.
- Fix key handling so that DNS lookup results are reclaimed almost as
soon as they expire rather than sitting round either forever or for
an additional 5 mins beyond a set expiry time returning
EKEYEXPIRED. They persist for 1s as /bin/ls will do a second stat
call if the first fails"
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216637 [1]
Reviewed-by: Jeffrey Altman <jaltman@auristor.com>
* tag 'afs-fixes-20231221' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
keys, dns: Allow key types (eg. DNS) to be reclaimed immediately on expiry
afs: Fix dynamic root lookup DNS check
afs: Fix the dynamic root's d_delete to always delete unused dentries
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If a key has an expiration time, then when that time passes, the key is
left around for a certain amount of time before being collected (5 mins by
default) so that EKEYEXPIRED can be returned instead of ENOKEY. This is a
problem for DNS keys because we want to redo the DNS lookup immediately at
that point.
Fix this by allowing key types to be marked such that keys of that type
don't have this extra period, but are reclaimed as soon as they expire and
turn this on for dns_resolver-type keys. To make this easier to handle,
key->expiry is changed to be permanent if TIME64_MAX rather than 0.
Furthermore, give such new-style negative DNS results a 1s default expiry
if no other expiry time is set rather than allowing it to stick around
indefinitely. This shouldn't be zero as ls will follow a failing stat call
immediately with a second with AT_SYMLINK_NOFOLLOW added.
Fixes: 1a4240f4764a ("DNS: Separate out CIFS DNS Resolver code")
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Markus Suvanto <markus.suvanto@gmail.com>
cc: Wang Lei <wang840925@gmail.com>
cc: Jeff Layton <jlayton@redhat.com>
cc: Steve French <smfrench@gmail.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: Jarkko Sakkinen <jarkko@kernel.org>
cc: "David S. Miller" <davem@davemloft.net>
cc: Eric Dumazet <edumazet@google.com>
cc: Jakub Kicinski <kuba@kernel.org>
cc: Paolo Abeni <pabeni@redhat.com>
cc: linux-afs@lists.infradead.org
cc: linux-cifs@vger.kernel.org
cc: linux-nfs@vger.kernel.org
cc: ceph-devel@vger.kernel.org
cc: keyrings@vger.kernel.org
cc: netdev@vger.kernel.org
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from WiFi and bpf.
Current release - regressions:
- bpf: syzkaller found null ptr deref in unix_bpf proto add
- eth: i40e: fix ST code value for clause 45
Previous releases - regressions:
- core: return error from sk_stream_wait_connect() if sk_wait_event()
fails
- ipv6: revert remove expired routes with a separated list of routes
- wifi rfkill:
- set GPIO direction
- fix crash with WED rx support enabled
- bluetooth:
- fix deadlock in vhci_send_frame
- fix use-after-free in bt_sock_recvmsg
- eth: mlx5e: fix a race in command alloc flow
- eth: ice: fix PF with enabled XDP going no-carrier after reset
- eth: bnxt_en: do not map packet buffers twice
Previous releases - always broken:
- core:
- check vlan filter feature in vlan_vids_add_by_dev() and
vlan_vids_del_by_dev()
- check dev->gso_max_size in gso_features_check()
- mptcp: fix inconsistent state on fastopen race
- phy: skip LED triggers on PHYs on SFP modules
- eth: mlx5e:
- fix double free of encap_header
- fix slab-out-of-bounds in mlx5_query_nic_vport_mac_list()"
* tag 'net-6.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (69 commits)
net: check dev->gso_max_size in gso_features_check()
kselftest: rtnetlink.sh: use grep_fail when expecting the cmd fail
net/ipv6: Revert remove expired routes with a separated list of routes
net: avoid build bug in skb extension length calculation
net: ethernet: mtk_wed: fix possible NULL pointer dereference in mtk_wed_wo_queue_tx_clean()
net: stmmac: fix incorrect flag check in timestamp interrupt
selftests: add vlan hw filter tests
net: check vlan filter feature in vlan_vids_add_by_dev() and vlan_vids_del_by_dev()
net: hns3: add new maintainer for the HNS3 ethernet driver
net: mana: select PAGE_POOL
net: ks8851: Fix TX stall caused by TX buffer overrun
ice: Fix PF with enabled XDP going no-carrier after reset
ice: alter feature support check for SRIOV and LAG
ice: stop trashing VF VSI aggregator node ID information
mailmap: add entries for Geliang Tang
mptcp: fill in missing MODULE_DESCRIPTION()
mptcp: fix inconsistent state on fastopen race
selftests: mptcp: join: fix subflow_send_ack lookup
net: phy: skip LED triggers on PHYs on SFP modules
bpf: Add missing BPF_LINK_TYPE invocations
...
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https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Daniel Borkmann says:
====================
pull-request: bpf 2023-12-21
Hi David, hi Jakub, hi Paolo, hi Eric,
The following pull-request contains BPF updates for your *net* tree.
We've added 3 non-merge commits during the last 5 day(s) which contain
a total of 4 files changed, 45 insertions(+).
The main changes are:
1) Fix a syzkaller splat which triggered an oob issue in bpf_link_show_fdinfo(),
from Jiri Olsa.
2) Fix another syzkaller-found issue which triggered a NULL pointer dereference
in BPF sockmap for unconnected unix sockets, from John Fastabend.
bpf-for-netdev
* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
bpf: Add missing BPF_LINK_TYPE invocations
bpf: sockmap, test for unconnected af_unix sock
bpf: syzkaller found null ptr deref in unix_bpf proto add
====================
Link: https://lore.kernel.org/r/20231221104844.1374-1-daniel@iogearbox.net
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Pengfei Xu reported [1] Syzkaller/KASAN issue found in bpf_link_show_fdinfo.
The reason is missing BPF_LINK_TYPE invocation for uprobe multi
link and for several other links, adding that.
[1] https://lore.kernel.org/bpf/ZXptoKRSLspnk2ie@xpf.sh.intel.com/
Fixes: 89ae89f53d20 ("bpf: Add multi uprobe link")
Fixes: e420bed02507 ("bpf: Add fd-based tcx multi-prog infra with link support")
Fixes: 84601d6ee68a ("bpf: add bpf_link support for BPF_NETFILTER programs")
Fixes: 35dfaad7188c ("netkit, bpf: Add bpf programmable net device")
Reported-by: Pengfei Xu <pengfei.xu@intel.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Tested-by: Pengfei Xu <pengfei.xu@intel.com>
Acked-by: Hou Tao <houtao1@huawei.com>
Link: https://lore.kernel.org/bpf/20231215230502.2769743-1-jolsa@kernel.org
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I added logic to track the sock pair for stream_unix sockets so that we
ensure lifetime of the sock matches the time a sockmap could reference
the sock (see fixes tag). I forgot though that we allow af_unix unconnected
sockets into a sock{map|hash} map.
This is problematic because previous fixed expected sk_pair() to exist
and did not NULL check it. Because unconnected sockets have a NULL
sk_pair this resulted in the NULL ptr dereference found by syzkaller.
BUG: KASAN: null-ptr-deref in unix_stream_bpf_update_proto+0x72/0x430 net/unix/unix_bpf.c:171
Write of size 4 at addr 0000000000000080 by task syz-executor360/5073
Call Trace:
<TASK>
...
sock_hold include/net/sock.h:777 [inline]
unix_stream_bpf_update_proto+0x72/0x430 net/unix/unix_bpf.c:171
sock_map_init_proto net/core/sock_map.c:190 [inline]
sock_map_link+0xb87/0x1100 net/core/sock_map.c:294
sock_map_update_common+0xf6/0x870 net/core/sock_map.c:483
sock_map_update_elem_sys+0x5b6/0x640 net/core/sock_map.c:577
bpf_map_update_value+0x3af/0x820 kernel/bpf/syscall.c:167
We considered just checking for the null ptr and skipping taking a ref
on the NULL peer sock. But, if the socket is then connected() after
being added to the sockmap we can cause the original issue again. So
instead this patch blocks adding af_unix sockets that are not in the
ESTABLISHED state.
Reported-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot+e8030702aefd3444fb9e@syzkaller.appspotmail.com
Fixes: 8866730aed51 ("bpf, sockmap: af_unix stream sockets need to hold ref for pair sock")
Acked-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/r/20231201180139.328529-2-john.fastabend@gmail.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
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This reverts commit 3dec89b14d37ee635e772636dad3f09f78f1ab87.
The commit has some race conditions given how expires is managed on a
fib6_info in relation to gc start, adding the entry to the gc list and
setting the timer value leading to UAF. Revert the commit and try again
in a later release.
Fixes: 3dec89b14d37 ("net/ipv6: Remove expired routes with a separated list of routes")
Cc: Kui-Feng Lee <thinker.li@gmail.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20231219030243.25687-1-dsahern@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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If two Bluetooth devices both support BR/EDR and BLE, and also
support Secure Connections, then they only need to pair once.
The LTK generated during the LE pairing process may be converted
into a BR/EDR link key for BR/EDR transport, and conversely, a
link key generated during the BR/EDR SSP pairing process can be
converted into an LTK for LE transport. Hence, the link type of
the link key and LTK is not fixed, they can be either an LE LINK
or an ACL LINK.
Currently, in the mgmt_new_irk/ltk/crsk/link_key functions, the
link type is fixed, which could lead to incorrect address types
being reported to the application layer. Therefore, it is necessary
to add link_type/addr_type to the smp_irk/ltk/crsk and link_key,
to ensure the generation of the correct address type.
SMP over BREDR:
Before Fix:
> ACL Data RX: Handle 11 flags 0x02 dlen 12
BR/EDR SMP: Identity Address Information (0x09) len 7
Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
@ MGMT Event: New Identity Resolving Key (0x0018) plen 30
Random address: 00:00:00:00:00:00 (Non-Resolvable)
LE Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
@ MGMT Event: New Long Term Key (0x000a) plen 37
LE Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
Key type: Authenticated key from P-256 (0x03)
After Fix:
> ACL Data RX: Handle 11 flags 0x02 dlen 12
BR/EDR SMP: Identity Address Information (0x09) len 7
Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
@ MGMT Event: New Identity Resolving Key (0x0018) plen 30
Random address: 00:00:00:00:00:00 (Non-Resolvable)
BR/EDR Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
@ MGMT Event: New Long Term Key (0x000a) plen 37
BR/EDR Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
Key type: Authenticated key from P-256 (0x03)
SMP over LE:
Before Fix:
@ MGMT Event: New Identity Resolving Key (0x0018) plen 30
Random address: 5F:5C:07:37:47:D5 (Resolvable)
LE Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
@ MGMT Event: New Long Term Key (0x000a) plen 37
LE Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
Key type: Authenticated key from P-256 (0x03)
@ MGMT Event: New Link Key (0x0009) plen 26
BR/EDR Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
Key type: Authenticated Combination key from P-256 (0x08)
After Fix:
@ MGMT Event: New Identity Resolving Key (0x0018) plen 30
Random address: 5E:03:1C:00:38:21 (Resolvable)
LE Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
@ MGMT Event: New Long Term Key (0x000a) plen 37
LE Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
Key type: Authenticated key from P-256 (0x03)
@ MGMT Event: New Link Key (0x0009) plen 26
Store hint: Yes (0x01)
LE Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
Key type: Authenticated Combination key from P-256 (0x08)
Cc: stable@vger.kernel.org
Signed-off-by: Xiao Yao <xiaoyao@rock-chips.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
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hci_conn_hash_lookup_cis shall always match the requested CIG and CIS
ids even when they are unset as otherwise it result in not being able
to bind/connect different sockets to the same address as that would
result in having multiple sockets mapping to the same hci_conn which
doesn't really work and prevents BAP audio configuration such as
AC 6(i) when CIG and CIS are left unset.
Fixes: c14516faede3 ("Bluetooth: hci_conn: Fix not matching by CIS ID")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless
Johannes Berg says:
====================
* add (and fix) certificate for regdb handover to Chen-Yu Tsai
* fix rfkill GPIO handling
* a few driver (iwlwifi, mt76) crash fixes
* logic fixes in the stack
* tag 'wireless-2023-12-14' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless:
wifi: cfg80211: fix certs build to not depend on file order
wifi: mt76: fix crash with WED rx support enabled
wifi: iwlwifi: pcie: avoid a NULL pointer dereference
wifi: mac80211: mesh_plink: fix matches_local logic
wifi: mac80211: mesh: check element parsing succeeded
wifi: mac80211: check defragmentation succeeded
wifi: mac80211: don't re-add debugfs during reconfig
net: rfkill: gpio: set GPIO direction
wifi: mac80211: check if the existing link config remains unchanged
wifi: cfg80211: Add my certificate
wifi: iwlwifi: pcie: add another missing bh-disable for rxq->lock
wifi: ieee80211: don't require protected vendor action frames
====================
Link: https://lore.kernel.org/r/20231214111515.60626-3-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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For vendor action frames, whether a protected one should be
used or not is clearly up to the individual vendor and frame,
so even though a protected dual is defined, it may not get
used. Thus, don't require protection for vendor action frames
when they're used in a connection.
Since we obviously don't process frames unknown to the kernel
in the kernel, it may makes sense to invert this list to have
all the ones the kernel processes and knows to be requiring
protection, but that'd be a different change.
Fixes: 91535613b609 ("wifi: mac80211: don't drop all unprotected public action frames")
Reported-by: Jouni Malinen <j@w1.fi>
Link: https://msgid.link/20231206223801.f6a2cf4e67ec.Ifa6acc774bd67801d3dafb405278f297683187aa@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull pci fixes from Bjorn Helgaas:
- Limit Max_Read_Request_Size (MRRS) on some MIPS Loongson systems
because they don't all support MRRS > 256, and firmware doesn't
always initialize it correctly, which meant some PCIe devices didn't
work (Jiaxun Yang)
- Add and use pci_enable_link_state_locked() to prevent potential
deadlocks in vmd and qcom drivers (Johan Hovold)
- Revert recent (v6.5) acpiphp resource assignment changes that fixed
issues with hot-adding devices on a root bus or with large BARs, but
introduced new issues with GPU initialization and hot-adding SCSI
disks in QEMU VMs and (Bjorn Helgaas)
* tag 'pci-v6.7-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
Revert "PCI: acpiphp: Reassign resources on bridge if necessary"
PCI/ASPM: Add pci_disable_link_state_locked() lockdep assert
PCI/ASPM: Clean up __pci_disable_link_state() 'sem' parameter
PCI: qcom: Clean up ASPM comment
PCI: qcom: Fix potential deadlock when enabling ASPM
PCI: vmd: Fix potential deadlock when enabling ASPM
PCI/ASPM: Add pci_enable_link_state_locked()
PCI: loongson: Limit MRRS to 256
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Add pci_enable_link_state_locked() for enabling link states that can be
used in contexts where a pci_bus_sem read lock is already held (e.g. from
pci_walk_bus()).
This helper will be used to fix a couple of potential deadlocks where
the current helper is called with the lock already held, hence the CC
stable tag.
Fixes: f492edb40b54 ("PCI: vmd: Add quirk to configure PCIe ASPM and LTR")
Link: https://lore.kernel.org/r/20231128081512.19387-2-johan+linaro@kernel.org
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
[bhelgaas: include helper name in subject, commit log]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Cc: <stable@vger.kernel.org> # 6.3
Cc: Michael Bottini <michael.a.bottini@linux.intel.com>
Cc: David E. Box <david.e.box@linux.intel.com>
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This code is rarely (never?) enabled by distros, and it hasn't caught
anything in decades. Let's kill off this legacy debug code.
Suggested-by: Linus Torvalds <torvalds@linuxfoundation.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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There are multiple ways to grab references to credentials, and the only
protection we have against overflowing it is the memory required to do
so.
With memory sizes only moving in one direction, let's bump the reference
count to 64-bit and move it outside the realm of feasibly overflowing.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Pull io_uring fixes from Jens Axboe:
"Just two minor fixes:
- Fix for the io_uring socket option commands using the wrong value
on some archs (Al)
- Tweak to the poll lazy wake enable (me)"
* tag 'io_uring-6.7-2023-12-15' of git://git.kernel.dk/linux:
io_uring/cmd: fix breakage in SOCKET_URING_OP_SIOC* implementation
io_uring/poll: don't enable lazy wake for POLLEXCLUSIVE
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There are a few quirks around using lazy wake for poll unconditionally,
and one of them is related the EPOLLEXCLUSIVE. Those may trigger
exclusive wakeups, which wake a limited number of entries in the wait
queue. If that wake number is less than the number of entries someone is
waiting for (and that someone is also using DEFER_TASKRUN), then we can
get stuck waiting for more entries while we should be processing the ones
we already got.
If we're doing exclusive poll waits, flag the request as not being
compatible with lazy wakeups.
Reported-by: Pavel Begunkov <asml.silence@gmail.com>
Fixes: 6ce4a93dbb5b ("io_uring/poll: use IOU_F_TWQ_LAZY_WAKE for wakeups")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"17 hotfixes. 8 are cc:stable and the other 9 pertain to post-6.6
issues"
* tag 'mm-hotfixes-stable-2023-12-15-07-11' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mm/mglru: reclaim offlined memcgs harder
mm/mglru: respect min_ttl_ms with memcgs
mm/mglru: try to stop at high watermarks
mm/mglru: fix underprotected page cache
mm/shmem: fix race in shmem_undo_range w/THP
Revert "selftests: error out if kernel header files are not yet built"
crash_core: fix the check for whether crashkernel is from high memory
x86, kexec: fix the wrong ifdeffery CONFIG_KEXEC
sh, kexec: fix the incorrect ifdeffery and dependency of CONFIG_KEXEC
mips, kexec: fix the incorrect ifdeffery and dependency of CONFIG_KEXEC
m68k, kexec: fix the incorrect ifdeffery and build dependency of CONFIG_KEXEC
loongarch, kexec: change dependency of object files
mm/damon/core: make damon_start() waits until kdamond_fn() starts
selftests/mm: cow: print ksft header before printing anything else
mm: fix VMA heap bounds checking
riscv: fix VMALLOC_START definition
kexec: drop dependency on ARCH_SUPPORTS_KEXEC from CRASH_DUMP
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In the effort to reduce zombie memcgs [1], it was discovered that the
memcg LRU doesn't apply enough pressure on offlined memcgs. Specifically,
instead of rotating them to the tail of the current generation
(MEMCG_LRU_TAIL) for a second attempt, it moves them to the next
generation (MEMCG_LRU_YOUNG) after the first attempt.
Not applying enough pressure on offlined memcgs can cause them to build
up, and this can be particularly harmful to memory-constrained systems.
On Pixel 8 Pro, launching apps for 50 cycles:
Before After Change
Zombie memcgs 45 35 -22%
[1] https://lore.kernel.org/CABdmKX2M6koq4Q0Cmp_-=wbP0Qa190HdEGGaHfxNS05gAkUtPA@mail.gmail.com/
Link: https://lkml.kernel.org/r/20231208061407.2125867-4-yuzhao@google.com
Fixes: e4dde56cd208 ("mm: multi-gen LRU: per-node lru_gen_folio lists")
Signed-off-by: Yu Zhao <yuzhao@google.com>
Reported-by: T.J. Mercier <tjmercier@google.com>
Tested-by: T.J. Mercier <tjmercier@google.com>
Cc: Charan Teja Kalla <quic_charante@quicinc.com>
Cc: Hillf Danton <hdanton@sina.com>
Cc: Jaroslav Pulchart <jaroslav.pulchart@gooddata.com>
Cc: Kairui Song <ryncsn@gmail.com>
Cc: Kalesh Singh <kaleshsingh@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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While investigating kswapd "consuming 100% CPU" [1] (also see "mm/mglru:
try to stop at high watermarks"), it was discovered that the memcg LRU can
breach the thrashing protection imposed by min_ttl_ms.
Before the memcg LRU:
kswapd()
shrink_node_memcgs()
mem_cgroup_iter()
inc_max_seq() // always hit a different memcg
lru_gen_age_node()
mem_cgroup_iter()
check the timestamp of the oldest generation
After the memcg LRU:
kswapd()
shrink_many()
restart:
iterate the memcg LRU:
inc_max_seq() // occasionally hit the same memcg
if raced with lru_gen_rotate_memcg():
goto restart
lru_gen_age_node()
mem_cgroup_iter()
check the timestamp of the oldest generation
Specifically, when the restart happens in shrink_many(), it needs to stick
with the (memcg LRU) generation it began with. In other words, it should
neither re-read memcg_lru->seq nor age an lruvec of a different
generation. Otherwise it can hit the same memcg multiple times without
giving lru_gen_age_node() a chance to check the timestamp of that memcg's
oldest generation (against min_ttl_ms).
[1] https://lore.kernel.org/CAK8fFZ4DY+GtBA40Pm7Nn5xCHy+51w3sfxPqkqpqakSXYyX+Wg@mail.gmail.com/
Link: https://lkml.kernel.org/r/20231208061407.2125867-3-yuzhao@google.com
Fixes: e4dde56cd208 ("mm: multi-gen LRU: per-node lru_gen_folio lists")
Signed-off-by: Yu Zhao <yuzhao@google.com>
Tested-by: T.J. Mercier <tjmercier@google.com>
Cc: Charan Teja Kalla <quic_charante@quicinc.com>
Cc: Hillf Danton <hdanton@sina.com>
Cc: Jaroslav Pulchart <jaroslav.pulchart@gooddata.com>
Cc: Kairui Song <ryncsn@gmail.com>
Cc: Kalesh Singh <kaleshsingh@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Unmapped folios accessed through file descriptors can be underprotected.
Those folios are added to the oldest generation based on:
1. The fact that they are less costly to reclaim (no need to walk the
rmap and flush the TLB) and have less impact on performance (don't
cause major PFs and can be non-blocking if needed again).
2. The observation that they are likely to be single-use. E.g., for
client use cases like Android, its apps parse configuration files
and store the data in heap (anon); for server use cases like MySQL,
it reads from InnoDB files and holds the cached data for tables in
buffer pools (anon).
However, the oldest generation can be very short lived, and if so, it
doesn't provide the PID controller with enough time to respond to a surge
of refaults. (Note that the PID controller uses weighted refaults and
those from evicted generations only take a half of the whole weight.) In
other words, for a short lived generation, the moving average smooths out
the spike quickly.
To fix the problem:
1. For folios that are already on LRU, if they can be beyond the
tracking range of tiers, i.e., five accesses through file
descriptors, move them to the second oldest generation to give them
more time to age. (Note that tiers are used by the PID controller
to statistically determine whether folios accessed multiple times
through file descriptors are worth protecting.)
2. When adding unmapped folios to LRU, adjust the placement of them so
that they are not too close to the tail. The effect of this is
similar to the above.
On Android, launching 55 apps sequentially:
Before After Change
workingset_refault_anon 25641024 25598972 0%
workingset_refault_file 115016834 106178438 -8%
Link: https://lkml.kernel.org/r/20231208061407.2125867-1-yuzhao@google.com
Fixes: ac35a4902374 ("mm: multi-gen LRU: minimal implementation")
Signed-off-by: Yu Zhao <yuzhao@google.com>
Reported-by: Charan Teja Kalla <quic_charante@quicinc.com>
Tested-by: Kalesh Singh <kaleshsingh@google.com>
Cc: T.J. Mercier <tjmercier@google.com>
Cc: Kairui Song <ryncsn@gmail.com>
Cc: Hillf Danton <hdanton@sina.com>
Cc: Jaroslav Pulchart <jaroslav.pulchart@gooddata.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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The cleanup tasks of kdamond threads including reset of corresponding
DAMON context's ->kdamond field and decrease of global nr_running_ctxs
counter is supposed to be executed by kdamond_fn(). However, commit
0f91d13366a4 ("mm/damon: simplify stop mechanism") made neither
damon_start() nor damon_stop() ensure the corresponding kdamond has
started the execution of kdamond_fn().
As a result, the cleanup can be skipped if damon_stop() is called fast
enough after the previous damon_start(). Especially the skipped reset
of ->kdamond could cause a use-after-free.
Fix it by waiting for start of kdamond_fn() execution from
damon_start().
Link: https://lkml.kernel.org/r/20231208175018.63880-1-sj@kernel.org
Fixes: 0f91d13366a4 ("mm/damon: simplify stop mechanism")
Signed-off-by: SeongJae Park <sj@kernel.org>
Reported-by: Jakub Acs <acsjakub@amazon.de>
Cc: Changbin Du <changbin.du@intel.com>
Cc: Jakub Acs <acsjakub@amazon.de>
Cc: <stable@vger.kernel.org> # 5.15.x
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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After converting selinux to VMA heap check helper, the gcl triggers an
execheap SELinux denial, which is caused by a changed logic check.
Previously selinux only checked that the VMA range was within the VMA heap
range, and the implementation checks the intersection between the two
ranges, but the corner case (vm_end=start_brk, brk=vm_start) isn't handled
correctly.
Since commit 11250fd12eb8 ("mm: factor out VMA stack and heap checks") was
only a function extraction, it seems that the issue was introduced by
commit 0db0c01b53a1 ("procfs: fix /proc/<pid>/maps heap check"). Let's
fix above corner cases, meanwhile, correct the wrong indentation of the
stack and heap check helpers.
Fixes: 11250fd12eb8 ("mm: factor out VMA stack and heap checks")
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Reported-by: Ondrej Mosnacek <omosnace@redhat.com>
Closes: https://lore.kernel.org/selinux/CAFqZXNv0SVT0fkOK6neP9AXbj3nxJ61JAY4+zJzvxqJaeuhbFw@mail.gmail.com/
Tested-by: Ondrej Mosnacek <omosnace@redhat.com>
Link: https://lkml.kernel.org/r/20231207152525.2607420-1-wangkefeng.wang@huawei.com
Cc: David Hildenbrand <david@redhat.com>
Cc: Paul Moore <paul@paul-moore.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephen Smalley <stephen.smalley.work@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Current release - regressions:
- tcp: fix tcp_disordered_ack() vs usec TS resolution
Current release - new code bugs:
- dpll: sanitize possible null pointer dereference in
dpll_pin_parent_pin_set()
- eth: octeon_ep: initialise control mbox tasks before using APIs
Previous releases - regressions:
- io_uring/af_unix: disable sending io_uring over sockets
- eth: mlx5e:
- TC, don't offload post action rule if not supported
- fix possible deadlock on mlx5e_tx_timeout_work
- eth: iavf: fix iavf_shutdown to call iavf_remove instead iavf_close
- eth: bnxt_en: fix skb recycling logic in bnxt_deliver_skb()
- eth: ena: fix DMA syncing in XDP path when SWIOTLB is on
- eth: team: fix use-after-free when an option instance allocation
fails
Previous releases - always broken:
- neighbour: don't let neigh_forced_gc() disable preemption for long
- net: prevent mss overflow in skb_segment()
- ipv6: support reporting otherwise unknown prefix flags in
RTM_NEWPREFIX
- tcp: remove acked SYN flag from packet in the transmit queue
correctly
- eth: octeontx2-af:
- fix a use-after-free in rvu_nix_register_reporters
- fix promisc mcam entry action
- eth: dwmac-loongson: make sure MDIO is initialized before use
- eth: atlantic: fix double free in ring reinit logic"
* tag 'net-6.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (62 commits)
net: atlantic: fix double free in ring reinit logic
appletalk: Fix Use-After-Free in atalk_ioctl
net: stmmac: Handle disabled MDIO busses from devicetree
net: stmmac: dwmac-qcom-ethqos: Fix drops in 10M SGMII RX
dpaa2-switch: do not ask for MDB, VLAN and FDB replay
dpaa2-switch: fix size of the dma_unmap
net: prevent mss overflow in skb_segment()
vsock/virtio: Fix unsigned integer wrap around in virtio_transport_has_space()
Revert "tcp: disable tcp_autocorking for socket when TCP_NODELAY flag is set"
MIPS: dts: loongson: drop incorrect dwmac fallback compatible
stmmac: dwmac-loongson: drop useless check for compatible fallback
stmmac: dwmac-loongson: Make sure MDIO is initialized before use
tcp: disable tcp_autocorking for socket when TCP_NODELAY flag is set
dpll: sanitize possible null pointer dereference in dpll_pin_parent_pin_set()
net: ena: Fix XDP redirection error
net: ena: Fix DMA syncing in XDP path when SWIOTLB is on
net: ena: Fix xdp drops handling due to multibuf packets
net: ena: Destroy correct number of xdp queues upon failure
net: Remove acked SYN flag from packet in the transmit queue correctly
qed: Fix a potential use-after-free in qed_cxt_tables_alloc
...
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