CVE-2026-92503 ext4: fix ABBA deadlock in ext4_xattr_inode_cache_find()

In the Linux kernel, the following vulnerability has been resolved: ext4: fix ABBA deadlock in ext4xattrinodecachefind Syzbot/stress-ng reported an ABBA deadlock in ext4 when exercising concurrent xattr workloads using the eainode mount/format option. The deadlock occurs between the running...

EUVD-2026-82124

In the Linux kernel, the following vulnerability has been resolved: ext4: fix ABBA deadlock in ext4xattrinodecachefind Syzbot/stress-ng reported an ABBA deadlock in ext4 when exercising concurrent xattr workloads using the eainode mount/format option. The deadlock occurs between the running...

CVE-2026-92503

CVE-2026-92503 is an ABBA deadlock in the Linux kernel's ext4 filesystem, specifically in ext4_xattr_inode_cache_find(). The deadlock occurs between a running transaction holding a reference to a shared mbcache_entry and the eviction thread waiting for that reference to be released, when the exte...

CVE-2026-92503 ext4: fix ABBA deadlock in ext4_xattr_inode_cache_find()

In the Linux kernel, the following vulnerability has been resolved: ext4: fix ABBA deadlock in ext4xattrinodecachefind Syzbot/stress-ng reported an ABBA deadlock in ext4 when exercising concurrent xattr workloads using the eainode mount/format option. The deadlock occurs between the running...

EUVD-2026-82003

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix mmaplock deadlock on arena lock failure Reported by the Sashiko AI review. arenavmfault returns VMFAULTRETRY when it can't take arena-spinlock, but it never took mmaplock. The fault path assumes a VMFAULTRETRY handler...

CVE-2026-90342 bpf: Fix mmap_lock deadlock on arena lock failure

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix mmaplock deadlock on arena lock failure Reported by the Sashiko AI review. arenavmfault returns VMFAULTRETRY when it can't take arena-spinlock, but it never took mmaplock. The fault path assumes a VMFAULTRETRY handler...

CVE-2026-90342

CVE-2026-90342 is a deadlock in the Linux kernel BPF subsystem, specifically in the arena_vm_fault() path. The root cause is that arena_vm_fault() returns VM_FAULT_RETRY when it fails to acquire arena->spinlock, without ever having taken mmap_lock. The fault handler (do_user_addr_fault) then r...

CVE-2026-90342 bpf: Fix mmap_lock deadlock on arena lock failure

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix mmaplock deadlock on arena lock failure Reported by the Sashiko AI review. arenavmfault returns VMFAULTRETRY when it can't take arena-spinlock, but it never took mmaplock. The fault path assumes a VMFAULTRETRY handler...

CVE-2026-90310

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CVE-2026-90310

CVE-2026-90310 affects the Linux kernel 's xen/xenbus driver. A race condition exists where the xenstore watch thread (xenwatch ) can trigger xenbus_dev_changed() before the otherend_id field is initialized during device probe (e.g., on module load). The still-zeroed otherend_id is then misinterp...

EUVD-2026-81971

In the Linux kernel, the following vulnerability has been resolved: xen/xenbus: check otherendid only after it has been initialized When device just got initialized for example on module load, the otherendid field is initialized only after xenbusreadotherenddetails gets called. If xenstore watch...

CVE-2026-90310 xen/xenbus: check otherend_id only after it has been initialized

In the Linux kernel, the following vulnerability has been resolved: xen/xenbus: check otherendid only after it has been initialized When device just got initialized for example on module load, the otherendid field is initialized only after xenbusreadotherenddetails gets called. If xenstore watch...

CVE-2026-90265

CVE-2026-90265 is a deadlock in the Linux kernel's btrfs filesystem, occurring between the defrag path and delalloc space reservation. The root cause is that btrfs_defrag_file reserves delalloc space while still holding dirty and locked folios and the extent range lock , causing a lock-ordering d...

EUVD-2026-81858

In the Linux kernel, the following vulnerability has been resolved: btrfs: defrag: fix deadlock between defrag and delalloc space reservation While running fsstress with autodefrag and flushoncommit, hit a deadlock due to the fact that defrag reserves delalloc space while it's holding dirty and...

CVE-2026-90265 btrfs: defrag: fix deadlock between defrag and delalloc space reservation

In the Linux kernel, the following vulnerability has been resolved: btrfs: defrag: fix deadlock between defrag and delalloc space reservation While running fsstress with autodefrag and flushoncommit, hit a deadlock due to the fact that defrag reserves delalloc space while it's holding dirty and...

CVE-2026-90265 btrfs: defrag: fix deadlock between defrag and delalloc space reservation

In the Linux kernel, the following vulnerability has been resolved: btrfs: defrag: fix deadlock between defrag and delalloc space reservation While running fsstress with autodefrag and flushoncommit, hit a deadlock due to the fact that defrag reserves delalloc space while it's holding dirty and...

CVE-2026-90238

CVE-2026-90238 affects the Linux kernel AMD ISP4 media driver. The isp4sd_pwron_and_init() function holds ops_mutex via a guard and, on any initialization failure, calls isp4sd_pwroff_and_deinit() , which attempts to re-acquire the same non-recursive mutex already held by the current thread — cau...

EUVD-2026-81831

In the Linux kernel, the following vulnerability has been resolved: media: amd: isp4: fix self-deadlock in isp4sdpwronandinit error path isp4sdpwronandinit holds opsmutex via guardmutex and, on any init failure, jumps to errdeinit and calls isp4sdpwroffanddeinit. That helper takes the same...

CVE-2026-90238 media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path

In the Linux kernel, the following vulnerability has been resolved: media: amd: isp4: fix self-deadlock in isp4sdpwronandinit error path isp4sdpwronandinit holds opsmutex via guardmutex and, on any init failure, jumps to errdeinit and calls isp4sdpwroffanddeinit. That helper takes the same...

CVE-2026-90238 media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path

In the Linux kernel, the following vulnerability has been resolved: media: amd: isp4: fix self-deadlock in isp4sdpwronandinit error path isp4sdpwronandinit holds opsmutex via guardmutex and, on any init failure, jumps to errdeinit and calls isp4sdpwroffanddeinit. That helper takes the same...