CVE-2026-74605

CVE-2026-74605 is a race condition in the Linux kernel's eventfs subsystem. The ei->list field is a union with the RCU list head; when an eventfs inode is freed, it is added to the SRCU link list via that same field. Because the list is iterated under SRCU protection without holding eventfs_mu...

CVE-2026-74605 eventfs: Use children field for rcu head and add memory barriers

In the Linux kernel, the following vulnerability has been resolved: eventfs: Use children field for rcu head and add memory barriers When an eventfs inode is freed, it sets ei-isfreed and then uses its ei-list to add it to the srcu link list as the list field is a union with the rcu list head. As...

EUVD-2026-64538

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Use currentcontext for safe per-CPU buffer swap The ringbufferswapcpu function currently checks the per-CPU committing counter to determine if a buffer is actively being written to before performing the swap. However...

CVE-2026-74601 ring-buffer: Use current_context for safe per-CPU buffer swap

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Use currentcontext for safe per-CPU buffer swap The ringbufferswapcpu function currently checks the per-CPU committing counter to determine if a buffer is actively being written to before performing the swap. However...

CVE-2026-74601

CVE-2026-74601 is a race condition in the Linux kernel ring-buffer (tracing subsystem). The ring_buffer_swap_cpu() function checks a per-CPU committing counter to determine if a buffer is actively being written to before performing a swap. However, this counter can temporarily drop to 0 during a ...

EUVD-2026-64536

In the Linux kernel, the following vulnerability has been resolved: mm/ptdump: always stabilise against page table freeing using initmm Previous commits have established the invariant that kernel page table freeing is performed while an mmap read lock on initmm is held, which fixes races between...

CVE-2026-74599

CVE-2026-74599 is a race condition in the Linux kernel 's mm/ptdump subsystem. Previous fixes established that kernel page table freeing occurs while holding an mmap read lock on init_mm , but x86 and arm64 architectures can perform a ptdump over a non-init_mm via ptdump_walk_pgd(). Since kernel ...

CVE-2026-74599 mm/ptdump: always stabilise against page table freeing using init_mm

In the Linux kernel, the following vulnerability has been resolved: mm/ptdump: always stabilise against page table freeing using initmm Previous commits have established the invariant that kernel page table freeing is performed while an mmap read lock on initmm is held, which fixes races between...

CVE-2026-74594 sched/psi: Shut down rtpoll_timer in psi_cgroup_free()

In the Linux kernel, the following vulnerability has been resolved: sched/psi: Shut down rtpolltimer in psicgroupfree psischedulertpollwork is called locklessly from the scheduler hotpath and can race psitriggerdestroy taking down the last rtpoll trigger under rtpolltriggerlock:...

EUVD-2026-64531

In the Linux kernel, the following vulnerability has been resolved: sched/psi: Shut down rtpolltimer in psicgroupfree psischedulertpollwork is called locklessly from the scheduler hotpath and can race psitriggerdestroy taking down the last rtpoll trigger under rtpolltriggerlock:...

CVE-2026-74594

This Linux kernel vulnerability is a use-after-free in the Pressure Stall Information (PSI) subsystem. A race between psi_schedule_rtpoll_work() (called locklessly from the scheduler hotpath) and psi_trigger_destroy() allows the rtpoll_timer to be re-armed after the cgroup is freed, causing poll_...

CVE-2026-74591 mm/filemap: __filemap_add_folio() restore index before retrying

In the Linux kernel, the following vulnerability has been resolved: mm/filemap: filemapaddfolio restore index before retrying In filemapaddfolio's split-a-conflict loop, xassetorder is applied repeatedly: each application modifies xas.xaindex, rounding it down according to the splitorder attempte...

CVE-2026-74591

CVE-2026-74591 is a bug in the Linux kernel 's mm/filemap subsystem, specifically in __filemap_add_folio(). In the split-a-conflict loop, repeated calls to xas_set_order() round down xas.xa_index. When a GFP_NOWAIT allocation fails and the lock is dropped for retry via xas_nomem(), a concurrent t...

CVE-2026-74589

This is a use-after-free vulnerability in the Linux kernel BPF sockmap subsystem, specifically in the TCP send verdict path. The root cause is a race condition in tcp_bpf_send_verdict(): it copies the psock->sk_redir pointer under the source socket lock but fails to take a reference for the lo...

EUVD-2026-64527

In the Linux kernel, the following vulnerability has been resolved: fsverity: Fix bpfgetfsveritydigest dynptr assumptions The BPF verifier and the dynptr abstraction ensure that the memory space referenced by a dynptr remains valid. They do not, however, provide any guarantee that the contents of...

EUVD-2026-64526

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix skredir use-after-free in send verdict skpsockmsgverdict takes a socket reference for psock-skredir. tcpbpfsendverdict copies that pointer while holding the source socket lock, but does not take a reference for...

CVE-2026-74589 bpf, sockmap: Fix sk_redir use-after-free in send verdict

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix skredir use-after-free in send verdict skpsockmsgverdict takes a socket reference for psock-skredir. tcpbpfsendverdict copies that pointer while holding the source socket lock, but does not take a reference for...

PT-2026-79612

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Serialize accesses to the owner and mirror list with separate lock Interaction between KVM CAP VM MOVE ENC CONTEXT FROM and KVM CAP VM COPY ENC CONTEXT FROM can cause two separate issues: - in sev migrate from, when the...

PT-2026-79719

In the Linux kernel, the following vulnerability has been resolved: bpf: tcp: Fix use-after-free in bpf iter tcp established batch reqsk queue hash req publishes a TCP NEW SYN RECV request sock onto the ehash chain, drops the bucket lock, and only afterwards sets rsk refcnt to 3. Lockless readers...

PT-2026-79732

In the Linux kernel, the following vulnerability has been resolved: ovpn: skip rehash for peers already removed from by id ovpn nl peer set doit resolves the target peer via ovpn peer get by id before taking ovpn-lock. In the window between the lookup which only takes a refcount and the subsequen...