CVE-2026-98087

The Linux kernel contains a vulnerability where the RT balancer enters a retry loop when handling migrate_disable() 'd Real-Time (RT) tasks. Because these tasks remain on the pushable list while being pinned, the scheduler repeatedly attempts to push them, fails, and falls back to pushing the cur...

EUVD-2026-86917

In the Linux kernel, the following vulnerability has been resolved: sched/rt,dl: Skip migrate-disabled tasks when picking a push candidate A migratedisable'd RT task cannot be moved to another CPU, but the scheduler still keeps such a task on that CPU's pushable list rq-rt.pushabletasks and still...

CVE-2026-98085 bpf: backtrack_insn(): Handle ld_{abs,ind} subprog exit edge

In the Linux kernel, the following vulnerability has been resolved: bpf: backtrackinsn: Handle ldabs,ind subprog exit edge Nicholas Carlini reported a bug in precision backtracking mechanism for BPFLD | BPFIND,ABS instructions. These instructions are modelled as two branches: - fallthrough; -...

EUVD-2026-86915

In the Linux kernel, the following vulnerability has been resolved: bpf: backtrackinsn: Handle ldabs,ind subprog exit edge Nicholas Carlini reported a bug in precision backtracking mechanism for BPFLD | BPFIND,ABS instructions. These instructions are modelled as two branches: - fallthrough; -...

CVE-2026-98085

The Linux kernel contains a vulnerability in the BPF precision backtracking mechanism affecting BPF_LD | BPF_{IND,ABS} instructions. The root cause is that the backtrack_insn() function fails to handle the implicit exit case from a subprogram. Specifically, it does not call bt_subprog_enter() whe...

CVE-2026-98083 btrfs: fix transaction use-after-free in raid stripe insertion

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix transaction use-after-free in raid stripe insertion If allocation of a RAID stripe extent fails, btrfsinsertoneraidextent aborts and ends the transaction before returning -ENOMEM. btrfsfinishoneordered, the production...

EUVD-2026-86914

In the Linux kernel, the following vulnerability has been resolved: bpf: backtracking shouldn't clear outer frame R1-R5 for callbacks When processing calls to bpfloop verifier marks R1 and R4 as precise. R1 tracks loop iterations number and because of the 'callbackdepth R1' mechanics in...

CVE-2026-98084

The Linux kernel contains a vulnerability in the BPF verifier related to bpf_loop(). When processing callbacks, the verifier is intended to mark register R1 (which tracks loop iterations) as precise to satisfy callback_depth

CVE-2026-98083

The Linux kernel contains a use-after-free vulnerability within the btrfs filesystem during RAID stripe insertion. The root cause occurs when the allocation of a RAID stripe extent fails; the function btrfs_insert_one_raid_extent() aborts and ends the transaction before returning -ENOMEM. However...

EUVD-2026-86913

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix transaction use-after-free in raid stripe insertion If allocation of a RAID stripe extent fails, btrfsinsertoneraidextent aborts and ends the transaction before returning -ENOMEM. btrfsfinishoneordered, the production...

CVE-2026-98081

A vulnerability exists in the Linux kernel 's btrfs filesystem involving the zoned feature. The root cause is that do_zone_finish() clears the BLOCK_GROUP_FLAG_ZONE_IS_ACTIVE flag but returns early if call_zone_finish() fails. This results in a reference leak for inactive block groups on fs_info-...

EUVD-2026-86912

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix the possible bioclist memory leak during error There are two possible ways to leak bioc memory on btrfsorderedextent::bioclist: - An error occurred for btrfsinsertoneraidextent Then the function btrfsinsertraidextent...

EUVD-2026-86911

In the Linux kernel, the following vulnerability has been resolved: btrfs: zoned: finish active block group cleanup if callzonefinish fails dozonefinish clears BLOCKGROUPFLAGZONEISACTIVE before finishing the zones. If callzonefinish then fails it returned early, leaving the now inactive block gro...

CVE-2026-98082

The Linux kernel contains a memory leak vulnerability in the btrfs filesystem within btrfs_ordered_extent::bioc_list. The root cause involves bioc_list memory leaking during error conditions, specifically when btrfs_insert_one_raid_extent() fails or when an ordered extent encounters an IO error (...

CVE-2026-98082 btrfs: fix the possible bioc_list memory leak during error

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix the possible bioclist memory leak during error There are two possible ways to leak bioc memory on btrfsorderedextent::bioclist: - An error occurred for btrfsinsertoneraidextent Then the function btrfsinsertraidextent...

CVE-2026-98080

The Linux kernel contains a vulnerability in the btrfs filesystem where triggering qgroup_account_snapshot() while quotas are enabled (via MKFS_OPTIONS="-O quota") can cause a kernel warning and flip the filesystem to read-only (RO) . The root cause is a tree reference to a metadata extent that n...

EUVD-2026-86910

In the Linux kernel, the following vulnerability has been resolved: btrfs: do not force reloc root creation during qgroupaccountsnapshot BUG When running btrfs/252 with quota enabled through MKFSOPTIONS="-O quota", it has a high chance to trigger the following kernel warning and flips the fs RO:...

CVE-2026-98078

The Linux kernel contains a vulnerability in the ipvs component related to incorrect sequence option serialization. The hton_seq() function expects host-order source and network-order destination arguments, but the version 1 sync sender passes these arguments in reverse. This flaw leaves 24 bytes...

CVE-2026-98079

The Linux kernel contains a concurrency issue in the btrfs: zstd component where a writer can sleep indefinitely in zstd_get_workspace(). The root cause is a lost wakeup occurring because zstd_alloc_workspace() fails and the task queues unconditionally on zwsm->wait without re-testing the pool...

EUVD-2026-86909

In the Linux kernel, the following vulnerability has been resolved: btrfs: zstd: fix lost wakeup when waiting for a workspace A writer can sleep forever in zstdgetworkspace even though a workspace is free. When zstdallocworkspace fails, the task is queued on zwsm-wait and schedules unconditionall...