kernel security update

5.14.0-503.26.15.OL9 - Disable UKI signing Orabug: 36571828 - Update Oracle Linux certificates Kevin Lyons - Disable signing for aarch64 Ilya Okomin - Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list olkmodsigningkey.pem Orabug: 29539237 - Update x509.genkey Orabug:...

CVE-2025-21813

In the Linux kernel, the following vulnerability has been resolved: timers/migration: Fix off-by-one root mis-connection Before attaching a new root to the old root, the children counter of the new root is checked to verify that only the upcoming CPU's top group have been connected to it. However...

DEBIAN-CVE-2025-21813

In the Linux kernel, the following vulnerability has been resolved: timers/migration: Fix off-by-one root mis-connection Before attaching a new root to the old root, the children counter of the new root is checked to verify that only the upcoming CPU's top group have been connected to it. However...

UBUNTU-CVE-2025-21813

In the Linux kernel, the following vulnerability has been resolved: timers/migration: Fix off-by-one root mis-connection Before attaching a new root to the old root, the children counter of the new root is checked to verify that only the upcoming CPU's top group have been connected to it. However...

UBUNTU-CVE-2025-21816

In the Linux kernel, the following vulnerability has been resolved: hrtimers: Force migrate away hrtimers queued after CPUHPAPHRTIMERSDYING hrtimers are migrated away from the dying CPU to any online target at the CPUHPAPHRTIMERSDYING stage in order not to delay bandwidth timers handling tasks...

CVE-2025-21816

In the Linux kernel, the following vulnerability has been resolved: hrtimers: Force migrate away hrtimers queued after CPUHPAPHRTIMERSDYING hrtimers are migrated away from the dying CPU to any online target at the CPUHPAPHRTIMERSDYING stage in order not to delay bandwidth timers handling tasks...

CVE-2025-21816 hrtimers: Force migrate away hrtimers queued after CPUHP_AP_HRTIMERS_DYING

In the Linux kernel, the following vulnerability has been resolved: hrtimers: Force migrate away hrtimers queued after CPUHPAPHRTIMERSDYING hrtimers are migrated away from the dying CPU to any online target at the CPUHPAPHRTIMERSDYING stage in order not to delay bandwidth timers handling tasks...

CVE-2025-21816

CVE-2025-21816 affects the Linux kernel hrtimers subsystem. The issue arises when hrtimers queued on an offline CPU can wake up and arm the deadline timer after CPU hotplug stage CPUHP_AP_HRTIMERS_DYING, potentially impacting bandwidth timer handling (notably RCU-related wakeups). The documented ...

CVE-2025-21816 hrtimers: Force migrate away hrtimers queued after CPUHP_AP_HRTIMERS_DYING

In the Linux kernel, the following vulnerability has been resolved: hrtimers: Force migrate away hrtimers queued after CPUHPAPHRTIMERSDYING hrtimers are migrated away from the dying CPU to any online target at the CPUHPAPHRTIMERSDYING stage in order not to delay bandwidth timers handling tasks...

CVE-2025-21813 timers/migration: Fix off-by-one root mis-connection

In the Linux kernel, the following vulnerability has been resolved: timers/migration: Fix off-by-one root mis-connection Before attaching a new root to the old root, the children counter of the new root is checked to verify that only the upcoming CPU's top group have been connected to it. However...

CVE-2025-21813

In the Linux kernel, the following vulnerability has been resolved: timers/migration: Fix off-by-one root mis-connection Before attaching a new root to the old root, the children counter of the new root is checked to verify that only the upcoming CPU's top group have been connected to it. However...

CVE-2025-21813 timers/migration: Fix off-by-one root mis-connection

In the Linux kernel, the following vulnerability has been resolved: timers/migration: Fix off-by-one root mis-connection Before attaching a new root to the old root, the children counter of the new root is checked to verify that only the upcoming CPU's top group have been connected to it. However...

CVE-2025-21771

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix incorrect autogroup migration detection scxmovetask is called from schedmovetask and tells the BPF scheduler that cgroup migration is being committed. schedmovetask is used by both cgroup and autogroup migrations an...

DEBIAN-CVE-2025-21771

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix incorrect autogroup migration detection scxmovetask is called from schedmovetask and tells the BPF scheduler that cgroup migration is being committed. schedmovetask is used by both cgroup and autogroup migrations an...

UBUNTU-CVE-2025-21771

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix incorrect autogroup migration detection scxmovetask is called from schedmovetask and tells the BPF scheduler that cgroup migration is being committed. schedmovetask is used by both cgroup and autogroup migrations an...

SUSE CVE-2021-47635

In the Linux kernel, the following vulnerability has been resolved: ubifs: Fix to add refcount once page is set private MM defined the rule 1 very clearly that once page was set with PGprivate flag, we should increment the refcount in that page, also main flows like pageout, migratepage will assu...

SUSE CVE-2022-49413

In the Linux kernel, the following vulnerability has been resolved: bfq: Update cgroup information before merging bio When the process is migrated to a different cgroup or in case of writeback just starts submitting bios associated with a different cgroup bfqmergebio can operate with stale cgroup...

SUSE CVE-2022-49647

In the Linux kernel, the following vulnerability has been resolved: cgroup: Use separate src/dst nodes when preloading csssets for migration Each cset cssset is pinned by its tasks. When we're moving tasks around across csets for a migration, we need to hold the source and destination csets to...

CVE-2025-21771

CVE-2025-21771 affects the Linux kernel sched_ext subsystem. It stems from incorrect autogroup migration detection in the cgroup/migration path where scx_move_task() could misclassify a non-root cgroup migration as autogroup root migration, triggering a warning. The fix changes the call path by a...

CVE-2025-21771 sched_ext: Fix incorrect autogroup migration detection

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix incorrect autogroup migration detection scxmovetask is called from schedmovetask and tells the BPF scheduler that cgroup migration is being committed. schedmovetask is used by both cgroup and autogroup migrations an...