kernel security update

An update is available for kernel. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The kernel packages contain the Linux kernel, the core of any Linux operating...

kernel: net/sched: cls_u32: use skb_header_pointer_careful()

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: use skbheaderpointercareful skbheaderpointer does not fully validate negative @offset values. Use skbheaderpointercareful instead. GangMin Kim provided a report and a repro fooling u32classify: BUG: KASAN:...

RHEL 7 : kernel-rt (RHSA-2026:10756)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:10756 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism...

AlmaLinux 10 : kernel (ALSA-2026:9264)

The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:9264 advisory. kernel: net/sched: Make cakeenqueue return NETXMITCN when past bufferlimit CVE-2025-39766 kernel: scsi: qla2xxx: Fix improper freeing of purex item...

kernel: net/sched: cls_u32: use skb_header_pointer_careful()

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: use skbheaderpointercareful skbheaderpointer does not fully validate negative @offset values. Use skbheaderpointercareful instead. GangMin Kim provided a report and a repro fooling u32classify: BUG: KASAN:...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013471)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013471 advisory. In the Linux kernel, the following vulnerability has been resolved: net/sched: actmirred: use the backlog for mirred ingress The test Davide added in commit...

RHEL 8 : kernel (RHSA-2026:9514)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:9514 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: smc: Fix use-after-free in...

RHEL 7 : kernel (RHSA-2026:9870)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:9870 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: Linux kernel: RDMA/rxe...

RHEL 8 : kernel (RHSA-2026:9515)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:9515 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: net/sched: clsu32: use...

Unity Linux 20.1050e / 20.1070e Security Update: kernel (UTSA-2026-011358)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011358 advisory. In the Linux kernel, the following vulnerability has been resolved: net/sched: actmirred: use the backlog for mirred ingress The test Davide added in commit...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-007052)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007052 advisory. In the Linux kernel, the following vulnerability has been resolved: net/sched: actskbmod: prevent kernel-infoleak syzbot found that tcfskbmoddump was copying four...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-012969)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-012969 advisory. In the Linux kernel, the following vulnerability has been resolved: net/sched: actmirred: don't override retval if we already lost the skb If we're redirecting the...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007585)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007585 advisory. In the Linux kernel, the following vulnerability has been resolved: net/sched: schqfq: Fix null-deref in aggdequeue To prevent a potential crash in aggdequeue...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007241)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007241 advisory. In the Linux kernel, the following vulnerability has been resolved: net/sched: actmirred: don't override retval if we already lost the skb If we're redirecting the...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007242)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007242 advisory. In the Linux kernel, the following vulnerability has been resolved: net/sched: actmirred: use the backlog for mirred ingress The test Davide added in commit...

Moderate: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 10.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

SUSE CVE-2026-31421

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsfw: fix NULL pointer dereference on shared blocks The old-method path in fwclassify calls tcfblockq and dereferences q-handle. Shared blocks leave block-q NULL, causing a NULL deref when an empty clsfw filter is...

SUSE-SU-2026:1305-1 Security update for the Linux Kernel (Live Patch 76 for SUSE Linux Enterprise 12 SP5)

This update for the SUSE Linux Enterprise Kernel 4.12.14-122.290 fixes various security issues The following security issues were fixed: - CVE-2023-53794: cifs: fix session state check in reconnect to avoid use-after-free issue bsc1255235. - CVE-2025-71120: SUNRPC: svcauthgss: avoid NULL deref on...

EUVD-2026-21945

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsfw: fix NULL pointer dereference on shared blocks The old-method path in fwclassify calls tcfblockq and dereferences q-handle. Shared blocks leave block-q NULL, causing a NULL deref when an empty clsfw filter is...

CVE-2026-31423

In the Linux kernel, the following vulnerability has been resolved: net/sched: schhfsc: fix divide-by-zero in rtscmin m2sm converts a u32 slope to a u64 scaled value. For large inputs e.g. m1=4000000000, the result can reach 2^32. rtscmin stores the difference of two such u64 values in a u32...