In the Linux kernel, the following vulnerability has been resolved:
bpf: Invalidate RCU pointers after final spin unlock
In a sleepable BPF program, a spin lock can provide the only RCU protection
for a kptr. The final bpf_spin_unlock() ends that protection, but the
verifier leaves the pointer val...
In the Linux kernel, the following vulnerability has been resolved:
drm/omap: dsi: Do not copy isr table
To be able to unregister stuff from isrs, the corresponding table was
copied. Nobody seems to unregister stuff that way, so it does not help.
But there are stack-allocated objects passed to th...
In the Linux kernel, the following vulnerability has been resolved:
PCI/sysfs: Add lockdown checks to legacy I/O and memory handlers
Currently, the legacy I/O and memory sysfs handlers do not check
security_locked_down(LOCKDOWN_PCI_ACCESS), leaving the legacy_io and
legacy_mem files unprotected wh...
In the Linux kernel, the following vulnerability has been resolved:
remoteproc: fix OOB read via signed offset in rsc_table_for_each_entry()
table->offset[i] is a u32 from firmware, but was stored into a signed
int. A crafted offset like 0xFFFFFFF0 becomes -16, placing hdr 16 bytes
before the tab...
In the Linux kernel, the following vulnerability has been resolved:
bpf, cgroup: Fix invalid storage access after __cgroup_bpf_attach failed
A potential invalid storage access issue can occur after replacing a
cgroup bpf prog.
This occurs in the following scenario:
1. prog1 with storage is attach...
In the Linux kernel, the following vulnerability has been resolved:
bpf: Check load-acquire src ptr type before the load
check_atomic_load() calls check_load_mem() before atomic_ptr_type_ok().
For a load-acquire that fetches into its own source register (dst_reg ==
src_reg), check_load_mem() overw...
In the Linux kernel, the following vulnerability has been resolved:
thermal: hwmon: Remove hwmon class device along with its parent
The current code creates one hwmon device per thermal zone type and that
device is registered under the first thermal zone of the given type.
That turns out to be pr...
In the Linux kernel, the following vulnerability has been resolved:
xen/xenbus: check otherend_id only after it has been initialized
When device just got initialized (for example on module load), the
otherend_id field is initialized only after
xenbus_read_otherend_details() gets called. If xenstor...
In the Linux kernel, the following vulnerability has been resolved:
RDMA/erdma: Hold CQ references when processing EQ events
EQ handlers look up CQs from dev->cq_xa and invoke CQ completion or
error callbacks outside the xarray lock. erdma_destroy_cq() can erase the
CQ from the xarray and free its...
In the Linux kernel, the following vulnerability has been resolved:
RDMA/erdma: Hold QP references for AE and CM processing
AE QP fatal events and iWARP CM paths load QPs from dev->qp_xa
and then use or reference them outside the xarray lock.
erdma_destroy_qp() can drop the destroy-path reference...
In the Linux kernel, the following vulnerability has been resolved:
RDMA/srp: fix heap information leak on a truncated SRP_CRED_REQ
srp_recv_done() passes wc->byte_len to srp_process_rsp(). It passes
nothing to srp_process_cred_req() and srp_process_aer_req(), which read
fixed-size fields from the...
In the Linux kernel, the following vulnerability has been resolved:
ARM: 9481/2: breakpoint: CFI breakpoints only on demand
This removes the stub hw_breakpoint_cfi_handler() from ARM, making
it not steal breakpoint type 0x03 (ARM_ENTRY_CFI_BREAKPOINT) unless
CFI is actively used in the kernel.
Wh...
In the Linux kernel, the following vulnerability has been resolved:
ARM: 9483/1: select HAVE_POSIX_CPU_TIMERS_TASK_WORK
Commit c6e61c06d606 ("ARM: 9463/1: Allow to enable RT") enabled PREEMPT_RT
on ARM but did not select HAVE_POSIX_CPU_TIMERS_TASK_WORK. This leaves
CONFIG_POSIX_CPU_TIMERS_TASK_WOR...
In the Linux kernel, the following vulnerability has been resolved:
ARM: 9484/1: enable interrupts when unhandled user faults are triggered
PREEMPT_RT requires interrupts to be enabled when sending signals.
When do_DataAbort()/do_PrefetchAbort() triggers unhandled user faults,
that is `inf->fn()`...
In the Linux kernel, the following vulnerability has been resolved:
ARM: 9485/1: mm: acquire mmap write lock around show_pte() for user faults
When CONFIG_DEBUG_USER=y, and cmdline "user_debug=31" is set,
a user fault may trigger show_pte() without any lock.
If another thread in the same process c...
In the Linux kernel, the following vulnerability has been resolved:
ocfs2: synchronize heartbeat callbacks with o2net teardown
Patch series "ocfs2: harden heartbeat teardown races".
This series fixes two OCFS2 heartbeat/o2net teardown races found by
KASAN.
This patch (of 2):
Heartbeat callback...
In the Linux kernel, the following vulnerability has been resolved:
ocfs2: o2hb: quiesce negotiate handlers and timeout work
Heartbeat regions publish struct o2hb_region as the private data for the
NEGO_TIMEOUT and NEGO_APPROVE o2net handlers as soon as make_item()
creates the configfs region. Th...
In the Linux kernel, the following vulnerability has been resolved:
bpf: Clear buf on error in __bpf_get_task_stack
Both bpf_get_task_stack and bpf_get_task_stack_sleepable helpers that
use __bpf_get_task_stack have buf defined as ARG_PTR_TO_UNINIT_MEM
argument and we should initialize the buf on...
In the Linux kernel, the following vulnerability has been resolved:
bpf: Fix sleepable check for tracing/lsm prog
When CONFIG_FUNCTION_ERROR_INJECTION is disabled, a sleepable tracing prog
is allowed to attach to '__x64_'-alike prefix symbols.
It is because the verifier does not verify whether th...
In the Linux kernel, the following vulnerability has been resolved:
drm/sun4i: tcon: Drop TCON TOP device reference
of_find_device_by_node() takes a device reference. Drop it after mux
configuration succeeds.
In the Linux kernel, the following vulnerability has been resolved:
drm/sun4i: crtc: Propagate layer initialization error
sun4i_crtc_init() returns plain NULL when layer initialization fails,
while all its other error paths return an error pointer. The only
caller, sun4i_tcon_bind(), checks the re...
In the Linux kernel, the following vulnerability has been resolved:
cpufreq: imx6q: fix devres accumulation across driver rebind
imx6_soc_volt is allocated with devm_kcalloc(cpu_dev, ...), where cpu_dev
is the CPU device from get_cpu_device(0). That device is never unbound, so
its devres list is n...
In the Linux kernel, the following vulnerability has been resolved:
cpufreq: imx6q: fix out-of-bounds write when probed more than once
imx6_soc_volt is allocated fresh on every probe, sized to the number of
ARM OPPs:
imx6_soc_volt = devm_kcalloc(cpu_dev, num, sizeof(*imx6_soc_volt),
GFP...
In the Linux kernel, the following vulnerability has been resolved:
IB/isert: delay the final Login Response until the session is registered
isert_put_login_tx() puts the final Login Response on the wire before
__transport_register_session(), which iscsi_post_login_handler() reaches
only after isc...
In the Linux kernel, the following vulnerability has been resolved:
IB/isert: post the full-feature receive buffers after session registration
isert_put_login_tx() posts the full-feature receive buffers before
__transport_register_session() runs, so an initiator that does not wait
for the final Lo...
In the Linux kernel, the following vulnerability has been resolved:
RDMA/siw: Fix use-after-free in siw_accept()
siw_accept() looks up the QP supplied by userspace. If that QP is
already in RTS, the function jumps to error cleanup before associating
the incoming CEP with it.
The cleanup tests whe...
In the Linux kernel, the following vulnerability has been resolved:
module/dups: Fix use-after-free in kmod_dup_req lifetime handling
The kmod dups code uses RCU to ensure that a kmod_dup_req instance is freed
only after it is no longer referenced. When releasing an instance, the
kmod_dup_request_...
In the Linux kernel, the following vulnerability has been resolved:
arm64: hibernate: Restore DAIF state on error
Sashiko AI has reported that if swsusp_mte_save_tags() for some reason
fails we return from swsusp_arch_suspend() with DAIF being masked -
that is not what we'd expect. Restore the sav...
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Resize MST HDCP per-connector arrays to 32
AMDGPU_DM_MAX_DISPLAY_INDEX is 31. It suggest a maximum number of
32 connectors. But the way it's used is like MAX_DISPLAY_COUNT.
Hence we're off by one with DRM core, wh...
In the Linux kernel, the following vulnerability has been resolved:
phy: renesas: rcar-gen2: Fix double of_node_put on phy creation failure
for_each_child_of_node_scoped() releases the node reference on scope
exit, so the explicit of_node_put(np) in the devm_phy_create() error
path drops it twice....
In the Linux kernel, the following vulnerability has been resolved:
phy: sunplus: fix error handling in sp_uphy_init()
Fix the error paths of sp_uphy_init() to undo exactly what each stage
did: return directly if clk_prepare_enable() fails, release only the clock
if reset_control_deassert() fails,...
In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu/gfx6: Use PFP on the compute queues too
On GFX6, the compute rings use the same CP path as
the graphics ring. The only difference is that they
don't support draw commands. (As opposed to GFX7 and
newer which have a sepa...
In the Linux kernel, the following vulnerability has been resolved:
scsi: qla2xxx: Remove redundant VPD flash read in sysfs read path
qla2x00_sysfs_read_vpd() called ha->isp_ops->read_optrom() a second time
after releasing optrom_mutex. The repeated read is redundant and, unlike
the first, runs wi...
In the Linux kernel, the following vulnerability has been resolved:
firmware_loader: do not queue completed sysfs fallback requests
fw_load_sysfs_fallback() calls device_add() before adding the fw_priv to
pending_fw_head. device_add() publishes the fallback loading interface, so
a userspace helper...
In the Linux kernel, the following vulnerability has been resolved:
hugetlbfs: release subpool on fill_super failure
hugetlbfs_fill_super() allocates a hugepage subpool when size or min_size
mount options are specified. hugepage_new_subpool() may also reserve huge
pages for min_size.
If root den...
In the Linux kernel, the following vulnerability has been resolved:
phy: qcom: qmp-usb-legacy: Fix possible NULL-deref on early runtime suspend
There is a small window where the runtime suspend callback may run
after pm_runtime_enable() and before pm_runtime_forbid(). In this
case, a crash occurs...
In the Linux kernel, the following vulnerability has been resolved:
phy: qcom: snps-femto-v2: Fix possible NULL-deref on early runtime suspend
Runtime PM must be enabled before creating the PHY, since phy_create()
only enables runtime PM on the PHY device if it is already enabled on
this parent de...
In the Linux kernel, the following vulnerability has been resolved:
phy: qcom: qmp-usb: Fix possible NULL-deref on early runtime suspend
There is a small window where the runtime suspend callback may run
after pm_runtime_enable() and before pm_runtime_forbid(). In this
case, a crash occurs because...
In the Linux kernel, the following vulnerability has been resolved:
md/raid5: round bitmap stripes with sector division
raid5_bitmap_sector_map() aligns the array range to full RAID5 stripe
widths before converting it to component sectors. That width is
chunk_sectors multiplied by the number of da...
In the Linux kernel, the following vulnerability has been resolved:
md: wait for behind writes before destroying bitmap
__md_stop() destroyed the bitmap before calling mddev_detach(). That made
mddev_detach() skip bitmap_ops->wait_behind_writes(), because the bitmap
was already disconnected from m...
In the Linux kernel, the following vulnerability has been resolved:
md/md-llbitmap: prevent create failure bitmap UAF
llbitmap_create() publishes mddev->bitmap before reading the bitmap
superblock. This is needed because llbitmap_read_sb() can initialize a
new bitmap and flush it through helpers t...
In the Linux kernel, the following vulnerability has been resolved:
md/md-llbitmap: stop daemon timer rearm on destroy
llbitmap_destroy() deletes pending_timer before flushing
md_llbitmap_io_wq. However, daemon_work can still be queued or running
after the timer has been deleted, and the daemon pa...
In the Linux kernel, the following vulnerability has been resolved:
md/raid1: don't set array_frozen in raid1_takeover()
raid1_takeover() sets conf->array_frozen = 1 on the newly-allocated
r1conf and nothing ever clears it, so every I/O to the array stalls
permanently once _wait_barrier() sees it...
In the Linux kernel, the following vulnerability has been resolved:
coresight: etm4x: fix underflow for usage of (nrseqstate - 1)
According to IHI006H Embedded Trace Macrocell Architecture
Specification[0], TRCSEQEVR<n> is implemented only when
TRCIDR5.NUMSEQSTATE is 0b100, in which case n ranges...
In the Linux kernel, the following vulnerability has been resolved:
coresight: etm4x: missing cscfg_csdev_disable_active_config() in perf enable
In the perf enable path, there are missing cases where
cscfg_csdev_disable_active_config() is not called:
- Branch broadcast is selected but not suppo...
In the Linux kernel, the following vulnerability has been resolved:
perf: arm_pmuv3: Zero initialize hw_id branch stack field
PERF_SAMPLE_BRANCH_HW_INDEX is supported by BRBE so hw_id is passed to
userspace, but it's never set by the BRBE driver. Zero initialize it as
it should be according to the...
In the Linux kernel, the following vulnerability has been resolved:
arm_mpam: Fix a NULL pointer dereference on unbinding after an error interrupt
If a user unbinds an MSC after mpam_disable() has been run in response
to an error interrupt then a dereference of a NULL pointer occurs as
mpam_disabl...
In the Linux kernel, the following vulnerability has been resolved:
arm_mpam: Disable driver unbind to avoid UAF
When a user unbinds an MSC and that MSC is the only MSC left for a
component then the corresponding mpam_component will be freed. If the user
then goes on to read the schemata file in t...
In the Linux kernel, the following vulnerability has been resolved:
bpf: Reject load-acquire from pointers requiring fault protection
A BPF_LOAD_ACQ is not rewritten to a BPF_PROBE_MEM load by the verifier,
unlike a regular BPF_LDX, so the JIT emits a plain load with no exception
table entry and a...
In the Linux kernel, the following vulnerability has been resolved:
scsi: sd: Fix error handling in sd_probe() after large pool creation failure
After device_add(&sdkp->disk_dev) succeeds, sd_large_pool_create()
failure must unregister disk_dev and let scsi_disk_release() free
sdkp. Going through...