EUVD-2026-76661

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix crash passing ERRPTR to kthreadstop eventteststuff calls kthreadrun and unconditionally passes the returned taskstruct pointer to kthreadstop. kthreadrun returns an error pointer such as ERRPTR-ENOMEM when kthread...

CVE-2026-89748 tracing: Fix retry exhaustion in simple ring buffer reader swap

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix retry exhaustion in simple ring buffer reader swap simpleringbufferswapreaderpage starts with retry set to 8 and post-decrements it only after a failed link replacement. On the final attempt, a successful replacement...

CVE-2026-89748

CVE-2026-89748 is a logic error in the Linux kernel's tracing subsystem, specifically in simple_ring_buffer_swap_reader_page(). The function's retry counter is post-decremented only after a failed link replacement, so on the final attempt a successful replacement leaves retry at zero while a fail...

CVE-2026-89749

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix crash passing ERRPTR to kthreadstop eventteststuff calls kthreadrun and unconditionally passes the returned taskstruct pointer to kthreadstop. kthreadrun returns an error pointer such as ERRPTR-ENOMEM when kthread...

CVE-2026-89746 tracing: Fix use-after-free with same-name named triggers

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix use-after-free with same-name named triggers When two hist triggers on different events are registered with the same name=, the second one reuses the first as nameddata. Both are added to tr-histvars by savehistvars...

CVE-2026-89746 tracing: Fix use-after-free with same-name named triggers

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix use-after-free with same-name named triggers When two hist triggers on different events are registered with the same name=, the second one reuses the first as nameddata. Both are added to tr-histvars by savehistvars...

CVE-2026-89705 nfsd: restore rq_status_counter to even on all nfsd_dispatch() exit paths

In the Linux kernel, the following vulnerability has been resolved: nfsd: restore rqstatuscounter to even on all nfsddispatch exit paths nfsddispatch sets rqstatuscounter to an odd value once a request has been decoded, and back to an even value once it has been fully processed, forming a seq-loc...

CVE-2026-89643

In the Linux kernel, the following vulnerability has been resolved: audit: avoid dropping live tree ref on fsnotify rule autoremove auditdelrule is used for both netlink deletion templates and internal fsnotify autoremove. The former passes a parsed template which owns a temporary tree reference;...

CVE-2026-89643 audit: avoid dropping live tree ref on fsnotify rule autoremove

In the Linux kernel, the following vulnerability has been resolved: audit: avoid dropping live tree ref on fsnotify rule autoremove auditdelrule is used for both netlink deletion templates and internal fsnotify autoremove. The former passes a parsed template which owns a temporary tree reference;...

EUVD-2026-76555

In the Linux kernel, the following vulnerability has been resolved: audit: avoid dropping live tree ref on fsnotify rule autoremove auditdelrule is used for both netlink deletion templates and internal fsnotify autoremove. The former passes a parsed template which owns a temporary tree reference;...

CVE-2026-89643 audit: avoid dropping live tree ref on fsnotify rule autoremove

In the Linux kernel, the following vulnerability has been resolved: audit: avoid dropping live tree ref on fsnotify rule autoremove auditdelrule is used for both netlink deletion templates and internal fsnotify autoremove. The former passes a parsed template which owns a temporary tree reference;...

EUVD-2026-76496

In the Linux kernel, the following vulnerability has been resolved: block: validate user space vectors during extraction The bio-based drivers don't necessarily check the alignment split, and stacking block drivers don't always handle a misalignment detected after submitting the bio. Validate use...

CVE-2026-89584

CVE-2026-89584 is a vulnerability in the Linux kernel block layer where user-space I/O vectors (iov_iter) are not validated against the device's DMA alignment requirements. Bio-based drivers may not check alignment splits, and stacking block drivers may not handle misalignment detected after bio ...

CVE-2026-89571 cxl/features: bound fwctl command payload to the input buffer

In the Linux kernel, the following vulnerability has been resolved: cxl/features: bound fwctl command payload to the input buffer fwctlcmdrpc copies cmd-inlen bytes into inbuf = kvzalloccmd-inlen and passes inbuf and inlen to -fwrpc. The CXL callback cxlctlfwrpc ignores inlen and never checks the...

EUVD-2026-76483

In the Linux kernel, the following vulnerability has been resolved: cxl/features: bound fwctl command payload to the input buffer fwctlcmdrpc copies cmd-inlen bytes into inbuf = kvzalloccmd-inlen and passes inbuf and inlen to -fwrpc. The CXL callback cxlctlfwrpc ignores inlen and never checks the...

CVE-2026-89568

In the Linux kernel, the following vulnerability has been resolved: kho: fix size calculation in khopreservedmemoryreserve khopreservedmemoryreserve calculates the size of a preservation by doing 1 order + PAGESHIFT. Since the '1' is a 32-bit integer, it can only be shifted by 31. That is, it wil...

CVE-2026-89559 libnvdimm/labels: Prevent integer overflow in __nd_label_validate()

In the Linux kernel, the following vulnerability has been resolved: libnvdimm/labels: Prevent integer overflow in ndlabelvalidate The on-media namespace index field nslot is a u32 read from the DIMM label storage area. ndlabelvalidate bounds it against the config area size, but sizeofnamespacelab...

CVE-2026-89557 md: do overflow check for sb->bblog_shift in super_1_load()

In the Linux kernel, the following vulnerability has been resolved: md: do overflow check for sb-bblogshift in super1load In super1load, sb-bblogshift is an u8 type value loaded from on- disk superblock. It is used for badblocks API badblocksset by the following sequence, 1930 rdev-badblocks.shif...

CVE-2026-89557 md: do overflow check for sb->bblog_shift in super_1_load()

In the Linux kernel, the following vulnerability has been resolved: md: do overflow check for sb-bblogshift in super1load In super1load, sb-bblogshift is an u8 type value loaded from on- disk superblock. It is used for badblocks API badblocksset by the following sequence, 1930 rdev-badblocks.shif...

EUVD-2026-76468

In the Linux kernel, the following vulnerability has been resolved: md: do overflow check for sb-bblogshift in super1load In super1load, sb-bblogshift is an u8 type value loaded from on- disk superblock. It is used for badblocks API badblocksset by the following sequence, 1930 rdev-badblocks.shif...