CVE-2026-98788 futex: Fix private hash use-after-free on resize

In the Linux kernel, the following vulnerability has been resolved: futex: Fix private hash use-after-free on resize pollstatesynchronizercumm-futex.phash.batches is used by futexrefdrop to check that a grace period has passed since the current hash was published. This relies on batches referenci...

CVE-2026-98788 futex: Fix private hash use-after-free on resize

In the Linux kernel, the following vulnerability has been resolved: futex: Fix private hash use-after-free on resize pollstatesynchronizercumm-futex.phash.batches is used by futexrefdrop to check that a grace period has passed since the current hash was published. This relies on batches referenci...

EUVD-2026-103873

In the Linux kernel, the following vulnerability has been resolved: futex: Fix private hash use-after-free on resize pollstatesynchronizercumm-futex.phash.batches is used by futexrefdrop to check that a grace period has passed since the current hash was published. This relies on batches referenci...

CVE-2026-98788

The Linux kernel is affected by a use-after-free vulnerability in the futex subsystem during hash table resizing. The root cause is that __futex_pivot_hash() assigns mmph->batches before mmph->hash, allowing futex_ref_drop() to proceed while a reader still holds a pointer to the old hash if...

CVE-2026-98281 futex: Also allocate private hash on vfork()

In the Linux kernel, the following vulnerability has been resolved: futex: Also allocate private hash on vfork As Jann demonstrated, it is entirely feasible to access the mm through vfork. Therefore we need to allocate a private hash on vfork as well as any other CLONEVM user. Specifically, it mu...

CVE-2026-98281

In the Linux kernel, the following vulnerability has been resolved: futex: Also allocate private hash on vfork As Jann demonstrated, it is entirely feasible to access the mm through vfork. Therefore we need to allocate a private hash on vfork as well as any other CLONEVM user. Specifically, it mu...

SUSE CVE-2026-80776

In the Linux kernel, the following vulnerability has been resolved: futex: Fix race in futexpivotpending during private hash resize A task performing a custom private hash resize can remain blocked in uninterruptible sleep indefinitely. The hung-task detector reports: INFO: task futex-resizer:314...

CVE-2026-80776

In the Linux kernel, the following vulnerability has been resolved: futex: Fix race in futexpivotpending during private hash resize A task performing a custom private hash resize can remain blocked in uninterruptible sleep indefinitely. The hung-task detector reports: INFO: task futex-resizer:314...

CVE-2026-80776 futex: Fix race in futex_pivot_pending() during private hash resize

In the Linux kernel, the following vulnerability has been resolved: futex: Fix race in futexpivotpending during private hash resize A task performing a custom private hash resize can remain blocked in uninterruptible sleep indefinitely. The hung-task detector reports: INFO: task futex-resizer:314...

CVE-2026-80776 futex: Fix race in futex_pivot_pending() during private hash resize

In the Linux kernel, the following vulnerability has been resolved: futex: Fix race in futexpivotpending during private hash resize A task performing a custom private hash resize can remain blocked in uninterruptible sleep indefinitely. The hung-task detector reports: INFO: task futex-resizer:314...

CVE-2026-80758 futex: Avoid private hash use-after-free on final put

In the Linux kernel, the following vulnerability has been resolved: futex: Avoid private hash use-after-free on final put futexprivatehashput drops the reference to fph before evaluating fph-mm for wakeupvar. futexrefput enables preemption again before returning. If that put drops the final...

CVE-2026-80758

In the Linux kernel, the following vulnerability has been resolved: futex: Avoid private hash use-after-free on final put futexprivatehashput drops the reference to fph before evaluating fph-mm for wakeupvar. futexrefput enables preemption again before returning. If that put drops the final...

PT-2026-85617

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists in the Linux kernel during a custom private hash resize. A task can remain blocked in uninterruptible sleep indefinitely, potentially leading to a kernel panic...

PT-2026-85599

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the futex private hash put function. The function drops the reference to fph before evaluating fph-mm for wake up var. Because futex ref put enables...

ANT-2026-1BCAFJCC · torvalds/linux · Use-After-Free

use-after-free high CVE-2026-31554 Severity Claude high · Security research firm - · Maintainer high REPORT Anthropic's analysis of this finding, sealed at approval. ANT-2026-1BCAFJCC: futex: UAF in private-hash teardown via cross-process sysfutexrequeue leading giving LPE A process P can allocat...

SUSE CVE-2026-52973

In the Linux kernel, the following vulnerability has been resolved: futex: Drop CLONETHREAD requirement for private default hash alloc Currently needfutexhashallocatedefault depends on strict pthread semantics, abusing CLONETHREAD. This breaks the non-concurrency assumptions when doing the...