CVE-2026-98866 sched/cache: Introduce task_struct->sched_cache_grp to fix UAF

In the Linux kernel, the following vulnerability has been resolved: sched/cache: Introduce taskstruct-schedcachegrp to fix UAF Add a schedcachegrp pointer to taskstruct so that scheduler code can access the cache group directly via the task, without going through mm-schedcachegrp. This decouples...

EUVD-2026-103806

In the Linux kernel, the following vulnerability has been resolved: sched/cache: Introduce taskstruct-schedcachegrp to fix UAF Add a schedcachegrp pointer to taskstruct so that scheduler code can access the cache group directly via the task, without going through mm-schedcachegrp. This decouples...

CVE-2026-98866 sched/cache: Introduce task_struct->sched_cache_grp to fix UAF

In the Linux kernel, the following vulnerability has been resolved: sched/cache: Introduce taskstruct-schedcachegrp to fix UAF Add a schedcachegrp pointer to taskstruct so that scheduler code can access the cache group directly via the task, without going through mm-schedcachegrp. This decouples...

CVE-2026-98865

The Linux kernel contains a vulnerability in the sched_ext component where ops.dequeue() is incorrectly invoked while the source user DSQ lock is still held during the consume and move paths (specifically in scx_consume_dispatch_q() and move_task_between_dsqs()). This flaw can cause a self-deadlo...

CVE-2026-98865 sched_ext: Don't run ops.dequeue() with a DSQ lock held

In the Linux kernel, the following vulnerability has been resolved: schedext: Don't run ops.dequeue with a DSQ lock held ops.dequeue is invoked with the source user DSQ's lock still held on the consume and move paths scxconsumedispatchq, movetaskbetweendsqs. A BPF scheduler which locks the source...

CVE-2026-98865 sched_ext: Don't run ops.dequeue() with a DSQ lock held

In the Linux kernel, the following vulnerability has been resolved: schedext: Don't run ops.dequeue with a DSQ lock held ops.dequeue is invoked with the source user DSQ's lock still held on the consume and move paths scxconsumedispatchq, movetaskbetweendsqs. A BPF scheduler which locks the source...

EUVD-2026-103805

In the Linux kernel, the following vulnerability has been resolved: schedext: Don't run ops.dequeue with a DSQ lock held ops.dequeue is invoked with the source user DSQ's lock still held on the consume and move paths scxconsumedispatchq, movetaskbetweendsqs. A BPF scheduler which locks the source...

CVE-2026-98864

The Linux kernel contains a vulnerability in sched_ext where a task can be found on a DSQ while still in the SCX_OPSS_DISPATCHING state. This occurs because reenqueue paths do not wait for the state to clear in ops_dequeue(), unlike the dequeue and core-sched pick paths. If a reenqueue occurs in ...

CVE-2026-98864 sched_ext: Wait for SCX_OPSS_DISPATCHING before reenqueueing a task

In the Linux kernel, the following vulnerability has been resolved: schedext: Wait for SCXOPSSDISPATCHING before reenqueueing a task ebf1ccff79c4 "schedext: Fix ops.dequeue semantics" moved the final opsstate store in scxdispatchenqueue after the DSQ unlock so that the custody update and...

CVE-2026-98864 sched_ext: Wait for SCX_OPSS_DISPATCHING before reenqueueing a task

In the Linux kernel, the following vulnerability has been resolved: schedext: Wait for SCXOPSSDISPATCHING before reenqueueing a task ebf1ccff79c4 "schedext: Fix ops.dequeue semantics" moved the final opsstate store in scxdispatchenqueue after the DSQ unlock so that the custody update and...

EUVD-2026-103804

In the Linux kernel, the following vulnerability has been resolved: schedext: Wait for SCXOPSSDISPATCHING before reenqueueing a task ebf1ccff79c4 "schedext: Fix ops.dequeue semantics" moved the final opsstate store in scxdispatchenqueue after the DSQ unlock so that the custody update and...

CVE-2026-98863 KVM: x86: Re-pend GET_NESTED_STATE_PAGES if getting said pages fails

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Re-pend GETNESTEDSTATEPAGES if getting said pages fails Re-pend GETNESTEDSTATEPAGES before exiting to userspace if getting the nested pages fails in the KVMRUN path. If userspace re-runs the vCPU, and vmcs02 holds valid...

EUVD-2026-103803

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Re-pend GETNESTEDSTATEPAGES if getting said pages fails Re-pend GETNESTEDSTATEPAGES before exiting to userspace if getting the nested pages fails in the KVMRUN path. If userspace re-runs the vCPU, and vmcs02 holds valid...

CVE-2026-98862 audit: fix exe mark UAF in kill_rules()

In the Linux kernel, the following vulnerability has been resolved: audit: fix exe mark UAF in killrules killrules removes mixed AUDITDIR and AUDITEXE rules when an audit tree is pruned. It drops entry-rule.exe before removing the rule from the RCU-visible filter lists. After a rule has been...

CVE-2026-98862

The Linux kernel contains a use-after-free vulnerability in the kill_rules() function. The issue occurs because the kernel drops the entry->rule.exe mark before removing the rule from RCU-visible filter lists . This creates a race condition where fsnotify can free the executable mark while ano...

CVE-2026-98862 audit: fix exe mark UAF in kill_rules()

In the Linux kernel, the following vulnerability has been resolved: audit: fix exe mark UAF in killrules killrules removes mixed AUDITDIR and AUDITEXE rules when an audit tree is pruned. It drops entry-rule.exe before removing the rule from the RCU-visible filter lists. After a rule has been...

CVE-2026-98862

In the Linux kernel, the following vulnerability has been resolved: audit: fix exe mark UAF in killrules killrules removes mixed AUDITDIR and AUDITEXE rules when an audit tree is pruned. It drops entry-rule.exe before removing the rule from the RCU-visible filter lists. After a rule has been...

EUVD-2026-103802

In the Linux kernel, the following vulnerability has been resolved: audit: fix exe mark UAF in killrules killrules removes mixed AUDITDIR and AUDITEXE rules when an audit tree is pruned. It drops entry-rule.exe before removing the rule from the RCU-visible filter lists. After a rule has been...

EUVD-2026-103801

In the Linux kernel, the following vulnerability has been resolved: fprobe: Use guardrcuschednotrace and check rcuiswatching unregisterfprobe and unregisterfprobeasync used by BPF kprobe-multi rely on standard RCU grace periods synchronizercu and callrcu to wait until in-flight fprobe handlers...

CVE-2026-98861 fprobe: Use guard(rcu_sched_notrace) and check rcu_is_watching()

In the Linux kernel, the following vulnerability has been resolved: fprobe: Use guardrcuschednotrace and check rcuiswatching unregisterfprobe and unregisterfprobeasync used by BPF kprobe-multi rely on standard RCU grace periods synchronizercu and callrcu to wait until in-flight fprobe handlers...