CVE-2026-89717 zram: set default primary compressor in zram_destroy_comps()

In the Linux kernel, the following vulnerability has been resolved: zram: set default primary compressor in zramdestroycomps Patch series "zram: fix zram issues reported by sashiko". Sashiko drove by and reported 1 a couple of zram issues: a possible BUGON in zlib code due to missing winbits rang...

CVE-2026-89717

In the Linux kernel, the following vulnerability has been resolved: zram: set default primary compressor in zramdestroycomps Patch series "zram: fix zram issues reported by sashiko". Sashiko drove by and reported 1 a couple of zram issues: a possible BUGON in zlib code due to missing winbits rang...

CVE-2026-89711 NFSD: remove flawed WARN_ON_ONCE from nfsd_mode_check

In the Linux kernel, the following vulnerability has been resolved: NFSD: remove flawed WARNONONCE from nfsdmodecheck The header for commit e75b23f9e323 "nfsd: check dcanlookup in fhverify of directories" details the assumption that justified adding the WARNONONCE to nfsdmodecheck, that assumptio...

EUVD-2026-76623

In the Linux kernel, the following vulnerability has been resolved: NFSD: remove flawed WARNONONCE from nfsdmodecheck The header for commit e75b23f9e323 "nfsd: check dcanlookup in fhverify of directories" details the assumption that justified adding the WARNONONCE to nfsdmodecheck, that assumptio...

CVE-2026-89711 NFSD: remove flawed WARN_ON_ONCE from nfsd_mode_check

In the Linux kernel, the following vulnerability has been resolved: NFSD: remove flawed WARNONONCE from nfsdmodecheck The header for commit e75b23f9e323 "nfsd: check dcanlookup in fhverify of directories" details the assumption that justified adding the WARNONONCE to nfsdmodecheck, that assumptio...

CVE-2026-89711

In the Linux kernel, the following vulnerability has been resolved: NFSD: remove flawed WARNONONCE from nfsdmodecheck The header for commit e75b23f9e323 "nfsd: check dcanlookup in fhverify of directories" details the assumption that justified adding the WARNONONCE to nfsdmodecheck, that assumptio...

CVE-2026-89709 lockd, nfsd: RCU-protect nlmsvc_ops dispatch

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...

CVE-2026-89709

CVE-2026-89709 affects the Linux kernel's lockd and nfsd subsystems. The nlmsvc_ops pointer is published and cleared with plain stores while lockd dereferences it unguarded from dispatch sites in fs/lockd/svcsubs.c. After rmmod nfsd, a stale load produces either a NULL pointer dereference or a mo...

EUVD-2026-76621

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...

CVE-2026-89696 nfsd: block non-SAVEFH ops after FOREIGN PUTFH to prevent NULL deref

In the Linux kernel, the following vulnerability has been resolved: nfsd: block non-SAVEFH ops after FOREIGN PUTFH to prevent NULL deref When CONFIGNFSDV42INTERSSC is enabled, nfsd4putfh can return success with fhdentry and fhexport both NULL if fhverify returns nfserrstale and putfh-noverify is...

CVE-2026-89696

CVE-2026-89696 affects the Linux kernel's NFS daemon (nfsd) when CONFIG_NFSD_V4_2_INTER_SSC is enabled. A NULL pointer dereference occurs in the nfsd kthread when a remote, unauthenticated client crafts an NFS COMPOUND request containing an inter-SSC COPY operation with an additional op (e.g., SE...

CVE-2026-89696 nfsd: block non-SAVEFH ops after FOREIGN PUTFH to prevent NULL deref

In the Linux kernel, the following vulnerability has been resolved: nfsd: block non-SAVEFH ops after FOREIGN PUTFH to prevent NULL deref When CONFIGNFSDV42INTERSSC is enabled, nfsd4putfh can return success with fhdentry and fhexport both NULL if fhverify returns nfserrstale and putfh-noverify is...

CVE-2026-89696

In the Linux kernel, the following vulnerability has been resolved: nfsd: block non-SAVEFH ops after FOREIGN PUTFH to prevent NULL deref When CONFIGNFSDV42INTERSSC is enabled, nfsd4putfh can return success with fhdentry and fhexport both NULL if fhverify returns nfserrstale and putfh-noverify is...

CVE-2026-89679 nfsd: fix null dereference in nfsd4_setattr for deleg timestamp attrs

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix null dereference in nfsd4setattr for deleg timestamp attrs When a SETATTR request includes FATTR4WORD2TIMEDELEGACCESS or FATTR4WORD2TIMEDELEGMODIFY in the attribute bitmap, nfsd4setattr sets delegattrs=true and calls...

EUVD-2026-76591

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix null dereference in nfsd4setattr for deleg timestamp attrs When a SETATTR request includes FATTR4WORD2TIMEDELEGACCESS or FATTR4WORD2TIMEDELEGMODIFY in the attribute bitmap, nfsd4setattr sets delegattrs=true and calls...

CVE-2026-89679

CVE-2026-89679 is a null pointer dereference in the Linux kernel's nfsd component. When an NFSv4 client sends a SETATTR request containing the special "one stateid" (all-0xFF bytes) along with delegation timestamp attributes (FATTR4_WORD2_TIME_DELEG_ACCESS or FATTR4_WORD2_TIME_DELEG_MODIFY), nfsd...

CVE-2026-89679 nfsd: fix null dereference in nfsd4_setattr for deleg timestamp attrs

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix null dereference in nfsd4setattr for deleg timestamp attrs When a SETATTR request includes FATTR4WORD2TIMEDELEGACCESS or FATTR4WORD2TIMEDELEGMODIFY in the attribute bitmap, nfsd4setattr sets delegattrs=true and calls...

CVE-2026-89679

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix null dereference in nfsd4setattr for deleg timestamp attrs When a SETATTR request includes FATTR4WORD2TIMEDELEGACCESS or FATTR4WORD2TIMEDELEGMODIFY in the attribute bitmap, nfsd4setattr sets delegattrs=true and calls...

CVE-2026-89662 NFSD: Prevent lock owner use-after-free during client teardown

In the Linux kernel, the following vulnerability has been resolved: NFSD: Prevent lock owner use-after-free during client teardown destroyclient releases a client's open owners, but a lock owner whose only reference is a blocked lock nbl stays on clownerstrhashtbl. clienthasstate does not count a...

EUVD-2026-76574

In the Linux kernel, the following vulnerability has been resolved: NFSD: Prevent lock owner use-after-free during client teardown destroyclient releases a client's open owners, but a lock owner whose only reference is a blocked lock nbl stays on clownerstrhashtbl. clienthasstate does not count a...