PT-2026-90283

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The jbd2 shrinker fails to account for busy buffers when calculating the scan budget against nr to scan, meaning only successfully released checkpoint buffers are counted. When a...

PT-2026-96408

In the Linux kernel, the following vulnerability has been resolved: mm/kmemleak: avoid soft lockup when scanning task stacks Patch series "mm/kmemleak: avoid soft lockup when scanning task", v3. kmemleak scan scans every task stack under one rcu read lock with no reschedule point, which can trip...

PT-2026-96392

In the Linux kernel, the following vulnerability has been resolved: jbd2: bound shrinker scans by examined checkpoint buffers The jbd2 shrinker currently accounts only checkpoint buffers that it successfully releases against nr to scan. Busy buffers therefore do not consume the scan budget. If a...

PT-2026-96401

In the Linux kernel, the following vulnerability has been resolved: sunrpc: defer rq argp and rq resp free until after RCU grace period svc rqst free frees rqstp-rq argp and rqstp-rq resp synchronously via kfree, but defers the rqstp struct free via kfree rcu. After svc exit thread calls list del...

PT-2026-96537

In the Linux kernel, the following vulnerability has been resolved: jbd2: check need resched when skipping busy checkpoint buffers journal shrink one cp list skips busy checkpoint buffers when called with JBD2 SHRINK BUSY SKIP. The continue statement on this path also skips the need resched check...

PT-2026-90261

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the sunrpc component. The svc rqst free function synchronously frees rqstp-rq argp and rqstp-rq resp using kfree, while the rqstp structure itself is fre...

PT-2026-90282

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the jbd2 component where the journal shrink one cp list function fails to perform a need resched check when skipping busy checkpoint buffers while called with JBD2...

PT-2026-90386

Name of the Vulnerable Software and Affected Versions Linux Kernel affected versions not specified Description A race condition exists in the nfsd open local fh function where a pointer is loaded using cmpxchg and subsequently passed to nfsd file get without holding an rcu read lock. Because nfsd...

PT-2026-90469

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Linux kernel where the shrink lruvec function fails to report RCU-tasks quiescent states during direct reclaim. In kernels with PREEMPTION enabled, the cond resche...

CVE-2026-89709: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: lockd, nfsd: RCU-protect nlmsvcops dispatch nlmsvcops is published by nfsdlockdinit and cleared by nfsdlockdshutdown with plain stores, while lockd dereferences it unguarded from dispatch sites in fs/lockd/svcsubs.c. The pointer...

PT-2026-90425

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the lockd and nfsd components where nlmsvc ops is published by nfsd lockd init and cleared by nfsd lockd shutdown using plain stores. Because lockd dereferences this...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-107267)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-107267 advisory. In the Linux kernel, the following vulnerability has been resolved: mt76: fix use-after-free by removing a non-RCU wcid pointer Fixes an issue caught by KASAN about...

PT-2026-90406

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the nfsd component. The rpc status netlink dumpit iterates through in-flight svc rqst under rcu read lock and reads operation numbers from the args-ops...

PT-2026-96603

In the Linux kernel, the following vulnerability has been resolved: mm/migrate: report RCU-tasks quiescent states in migrate pages batch migrate pages batch unmaps each folio before moving it, and every unmap runs the mmu notifier invalidate callbacks. On KVM hosts try to migrate ends up in kvm m...

CVE-2026-89670: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: nfsd: hold rcu across localio cmpxchg retry nfsdfile objects are freed via callrcu filecache.c:296, and nfsdfileslab is created without SLABTYPESAFEBYRCU KMEMCACHEnfsdfile, 0 at filecache.c:789, so the slab page backing a freed...

CVE-2026-89756: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: mm/migrate: report RCU-tasks quiescent states in migratepagesbatch migratepagesbatch unmaps each folio before moving it, and every unmap runs the mmunotifier invalidate callbacks. On KVM hosts trytomigrate ends up in...

PT-2026-90475

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the kmemleak scan function where it scans every task stack under a single rcu read lock without a reschedule point. On hosts with a very large number of threads, this...

kernel: security/keys: fix missed RCU read section on lookup

A flaw was found in the Linux kernel's keyring code. The assocarrayfind function, used for looking up keys, was called without holding the necessary Read-Copy-Update RCU read lock. This oversight allows for a memory corruption vulnerability, particularly affecting persistent key handling, as the...

kernel: security/keys: fix missed RCU read section on lookup

A flaw was found in the Linux kernel's keyring code. The assocarrayfind function, used for looking up keys, was called without holding the necessary Read-Copy-Update RCU read lock. This oversight allows for a memory corruption vulnerability, particularly affecting persistent key handling, as the...

Oracle Linux 9 : ELSA-2026-63129-0: / kernel (ELSA-2026-631290)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-631290 advisory. - locking/rt: Fix the incorrect RCU protection in rtspinunlock Waiman Long RHEL-242684 CVE-2026-72069 - iomap: fix out-of-bounds bitmapset with...