CVE-2026-43455

In CVE-2026-43455, multiple sources confirm a race in the Linux kernel MCTP module: mctp_flow_prepare_output() checks key->dev and may call mctp_dev_set_key() without holding key->lock, while both mctp_dev_set_key() and mctp_dev_release_key() require the lock. This can allow concurrent path...

CVE-2026-43455 mctp: route: hold key->lock in mctp_flow_prepare_output()

In the Linux kernel, the following vulnerability has been resolved: mctp: route: hold key-lock in mctpflowprepareoutput mctpflowprepareoutput checks key-dev and may call mctpdevsetkey, but it does not hold key-lock while doing so. mctpdevsetkey and mctpdevreleasekey are annotated with...

CVE-2026-43455

In the Linux kernel, the following vulnerability has been resolved: mctp: route: hold key-lock in mctpflowprepareoutput mctpflowprepareoutput checks key-dev and may call mctpdevsetkey, but it does not hold key-lock while doing so. mctpdevsetkey and mctpdevreleasekey are annotated with...

CVE-2026-43455 mctp: route: hold key->lock in mctp_flow_prepare_output()

In the Linux kernel, the following vulnerability has been resolved: mctp: route: hold key-lock in mctpflowprepareoutput mctpflowprepareoutput checks key-dev and may call mctpdevsetkey, but it does not hold key-lock while doing so. mctpdevsetkey and mctpdevreleasekey are annotated with...

CVE-2026-43437

In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: fix use-after-free on linked stream runtime in sndpcmdrain In the drain loop, the local variable 'runtime' is reassigned to a linked stream's runtime runtime = s-runtime at line 2157. After releasing the stream lock at...

CVE-2026-43423

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: fncm: Fix atomic context locking issue The ncmsetalt function was holding a mutex to protect against races with configfs, which invokes the might-sleep function inside an atomic context. Remove the struct netdevice...

CVE-2026-43404

CVE-2026-43404: In the Linux kernel mm subsystem, hmm_range_fault() can livelock if folio_trylock() fails during device-private folio migration; the spinning waiter may be starved if a dependent work item on the same CPU never runs, causing a DoS-like livelock. Conditions include: migration path ...

CVE-2026-43388

CVE-2026-43388 (Linux kernel, DAMON) : The vulnerability arises in mm/damon/core/damos_walk(), which sets ctx->walk_control to a caller-provided control structure before checking if the context is running. If the context is inactive, it returns -EINVAL without clearing the pointer, leaving a d...

CVE-2026-43388 mm/damon/core: clear walk_control on inactive context in damos_walk()

In the Linux kernel, the following vulnerability has been resolved: mm/damon/core: clear walkcontrol on inactive context in damoswalk damoswalk sets ctx-walkcontrol to the caller-provided control structure before checking whether the context is running. If the context is inactive damonisrunning...

CVE-2026-43382 batman-adv: Avoid double-rtnl_lock ELP metric worker

In the Linux kernel, the following vulnerability has been resolved: batman-adv: Avoid double-rtnllock ELP metric worker batadvvelpgetthroughput might be called when the RTNL lock is already held. This could be problematic when the work queue item is cancelled via canceldelayedworksync in...

CVE-2026-43382

In the Linux kernel, the following vulnerability has been resolved: batman-adv: Avoid double-rtnllock ELP metric worker batadvvelpgetthroughput might be called when the RTNL lock is already held. This could be problematic when the work queue item is cancelled via canceldelayedworksync in...

CVE-2026-43382 batman-adv: Avoid double-rtnl_lock ELP metric worker

In the Linux kernel, the following vulnerability has been resolved: batman-adv: Avoid double-rtnllock ELP metric worker batadvvelpgetthroughput might be called when the RTNL lock is already held. This could be problematic when the work queue item is cancelled via canceldelayedworksync in...

CVE-2026-43353

In the Linux kernel, the following vulnerability has been resolved: i3c: mipi-i3c-hci: Fix race in DMA ring dequeue The HCI DMA dequeue path hcidmadequeuexfer may be invoked for multiple transfers that timeout around the same time. However, the function is not serialized and can race with itself...

CVE-2026-43319

In the Linux kernel, the following vulnerability has been resolved: spi: spidev: fix lock inversion between spilock and buflock The spidev driver previously used two mutexes, spilock and buflock, but acquired them in different orders depending on the code path: write/read: buflock - spilock ioctl...

CVE-2026-43305

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix mismatched unlock for DMUB HW lock in HWSS fast path Why The evaluation for whether we need to use the DMUB HW lock isn't the same as whether we need to unlock which results in a hang when the fast path is us...

CVE-2025-71298

In the Linux kernel, the following vulnerability has been resolved: drm/tests: shmem: Hold reservation lock around madvise Acquire and release the GEM object's reservation lock around calls to the object's madvide operation. The tests use drmgemshmemmadviselocked, which led to errors such as show...

CVE-2025-71301

In the Linux kernel, the following vulnerability has been resolved: drm/tests: shmem: Hold reservation lock around vmap/vunmap Acquire and release the GEM object's reservation lock around vmap and vunmap operations. The tests use vmaplocked, which led to errors such as show below. 122.292030...

CVE-2025-71296

In the Linux kernel, the following vulnerability has been resolved: drm/tests: shmem: Hold reservation lock around purge Acquire and release the GEM object's reservation lock around calls to the object's purge operation. The tests use drmgemshmempurgelocked, which led to errors such as show below...

UBUNTU-CVE-2026-43305

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix mismatched unlock for DMUB HW lock in HWSS fast path Why The evaluation for whether we need to use the DMUB HW lock isn't the same as whether we need to unlock which results in a hang when the fast path is us...

UBUNTU-CVE-2025-71301

In the Linux kernel, the following vulnerability has been resolved: drm/tests: shmem: Hold reservation lock around vmap/vunmap Acquire and release the GEM object's reservation lock around vmap and vunmap operations. The tests use vmaplocked, which led to errors such as show below. 122.292030...