CVE-2026-74337 bpf: Fix NMI/tracepoint re-entry deadlock on lru locks

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NMI/tracepoint re-entry deadlock on lru locks NMI and tracepoint BPF programs can re-enter the per-CPU or global LRU lock that bpflrupopfree/pushfree already hold on the same CPU, AA-deadlocking. Lockdep reports...

CVE-2026-74337

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NMI/tracepoint re-entry deadlock on lru locks NMI and tracepoint BPF programs can re-enter the per-CPU or global LRU lock that bpflrupopfree/pushfree already hold on the same CPU, AA-deadlocking. Lockdep reports...

CVE-2026-74337

CVE-2026-74337 describes a Linux kernel vulnerability where NMI/tracepoint BPF programs could re-enter per-CPU or global LRU locks held by bpf_lru_pop_free()/push_free(), causing AA-deadlock. The fix converts LRU lock sites to rqspinlock_t and adds a recovery path for failure windows to avoid nod...

EUVD-2026-59484

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NMI/tracepoint re-entry deadlock on lru locks NMI and tracepoint BPF programs can re-enter the per-CPU or global LRU lock that bpflrupopfree/pushfree already hold on the same CPU, AA-deadlocking. Lockdep reports...

CVE-2026-74337 bpf: Fix NMI/tracepoint re-entry deadlock on lru locks

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NMI/tracepoint re-entry deadlock on lru locks NMI and tracepoint BPF programs can re-enter the per-CPU or global LRU lock that bpflrupopfree/pushfree already hold on the same CPU, AA-deadlocking. Lockdep reports...

CVE-2026-74335 bpf: Fix NULL pointer dereference in bpf_task_from_vpid()

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NULL pointer dereference in bpftaskfromvpid bpftaskfromvpid looks up a task in the pid namespace of the current task, via findtaskbyvpid: findtaskbyvpidvpid findtaskbypidnsvpid, taskactivepidnscurrent findpidnsnr, ns -...

CVE-2026-74336 wifi: mac80211: bound S1G TIM PVB walk to the TIM element

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: bound S1G TIM PVB walk to the TIM element ieee80211s1gchecktim parses the S1G Partial Virtual Bitmap PVB of a received TIM element. The TIM is handed in as the element payload: ieee80211parseelemsfull stores...

CVE-2026-74336

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: bound S1G TIM PVB walk to the TIM element ieee80211s1gchecktim parses the S1G Partial Virtual Bitmap PVB of a received TIM element. The TIM is handed in as the element payload: ieee80211parseelemsfull stores...

CVE-2026-74336

CVE-2026-74336 concerns the Linux kernel’s wifi/mac80211 code. The vulnerability arises in ieee80211_s1g_check_tim() when parsing the S1G TIM PVB, where the end boundary used for walking encoded blocks was incorrectly computed as tim_len + 2, allowing a read past the TIM element into adjacent dat...

CVE-2026-74335

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NULL pointer dereference in bpftaskfromvpid bpftaskfromvpid looks up a task in the pid namespace of the current task, via findtaskbyvpid: findtaskbyvpidvpid findtaskbypidnsvpid, taskactivepidnscurrent findpidnsnr, ns -...

EUVD-2026-59483

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: bound S1G TIM PVB walk to the TIM element ieee80211s1gchecktim parses the S1G Partial Virtual Bitmap PVB of a received TIM element. The TIM is handed in as the element payload: ieee80211parseelemsfull stores...

EUVD-2026-59482

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NULL pointer dereference in bpftaskfromvpid bpftaskfromvpid looks up a task in the pid namespace of the current task, via findtaskbyvpid: findtaskbyvpidvpid findtaskbypidnsvpid, taskactivepidnscurrent findpidnsnr, ns -...

CVE-2026-74336 wifi: mac80211: bound S1G TIM PVB walk to the TIM element

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: bound S1G TIM PVB walk to the TIM element ieee80211s1gchecktim parses the S1G Partial Virtual Bitmap PVB of a received TIM element. The TIM is handed in as the element payload: ieee80211parseelemsfull stores...

CVE-2026-74335 bpf: Fix NULL pointer dereference in bpf_task_from_vpid()

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NULL pointer dereference in bpftaskfromvpid bpftaskfromvpid looks up a task in the pid namespace of the current task, via findtaskbyvpid: findtaskbyvpidvpid findtaskbypidnsvpid, taskactivepidnscurrent findpidnsnr, ns -...

CVE-2026-74335

The CVE-2026-74335 issue is in the Linux kernel’s BPF helpers: bpf_task_from_vpid() dereferences NULL in task_active_pid_ns(current) when a thread is exiting and its pid namespace is cleared, leading to a NULL pointer dereference in idr_find(). The vulnerability path involves bpf/cgroup programs ...

EUVD-2026-59481

In the Linux kernel, the following vulnerability has been resolved: RDMA/nldev: Fix locking when accessing mr-pd Sashiko points out that, due to reregmr, the PD is actually variable and all the touches in nldev are racy. Use mr-device instead of mr-pd-device. Getting the PD restrack ID is more...

CVE-2026-74334

In the Linux kernel, the following vulnerability has been resolved: RDMA/nldev: Fix locking when accessing mr-pd Sashiko points out that, due to reregmr, the PD is actually variable and all the touches in nldev are racy. Use mr-device instead of mr-pd-device. Getting the PD restrack ID is more...

CVE-2026-74334

The CVE-2026-74334 issue affects the Linux kernel RDMA/nldev path, where locking around mr->pd was unsafe because pd became variable under rereg_mr and touches could race. The fix uses mr->device instead of mr->pd->device and introduces an rdma_restrack_sync() operation to ensure stal...

CVE-2026-74334 RDMA/nldev: Fix locking when accessing mr->pd

In the Linux kernel, the following vulnerability has been resolved: RDMA/nldev: Fix locking when accessing mr-pd Sashiko points out that, due to reregmr, the PD is actually variable and all the touches in nldev are racy. Use mr-device instead of mr-pd-device. Getting the PD restrack ID is more...

CVE-2026-74334 RDMA/nldev: Fix locking when accessing mr->pd

In the Linux kernel, the following vulnerability has been resolved: RDMA/nldev: Fix locking when accessing mr-pd Sashiko points out that, due to reregmr, the PD is actually variable and all the touches in nldev are racy. Use mr-device instead of mr-pd-device. Getting the PD restrack ID is more...