SUSE 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...

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...

kernel: net/sched: Always pass notifications when child class becomes empty

A use-after-free UAF vulnerability was found in the Linux kernel's net/sched subsystem, specifically in the Credit-Based Shaper CBS qdisc implementation schcbs. The vulnerability occurs because the CBS qdisc's reset function qdiscresetqueue only resets its internal queue but fails to reset its...

kernel: net/sched: Always pass notifications when child class becomes empty

A use-after-free UAF vulnerability was found in the Linux kernel's net/sched subsystem, specifically in the Credit-Based Shaper CBS qdisc implementation schcbs. The vulnerability occurs because the CBS qdisc's reset function qdiscresetqueue only resets its internal queue but fails to reset its...

kernel: net/sched: Always pass notifications when child class becomes empty

A use-after-free UAF vulnerability was found in the Linux kernel's net/sched subsystem, specifically in the Credit-Based Shaper CBS qdisc implementation schcbs. The vulnerability occurs because the CBS qdisc's reset function qdiscresetqueue only resets its internal queue but fails to reset its...

kernel: net/sched: Always pass notifications when child class becomes empty

A use-after-free UAF vulnerability was found in the Linux kernel's net/sched subsystem, specifically in the Credit-Based Shaper CBS qdisc implementation schcbs. The vulnerability occurs because the CBS qdisc's reset function qdiscresetqueue only resets its internal queue but fails to reset its...

kernel: net/sched: Always pass notifications when child class becomes empty

A use-after-free UAF vulnerability was found in the Linux kernel's net/sched subsystem, specifically in the Credit-Based Shaper CBS qdisc implementation schcbs. The vulnerability occurs because the CBS qdisc's reset function qdiscresetqueue only resets its internal queue but fails to reset its...

SUSE SLES15 Security Update : kernel (Live Patch 27 for SLE 15 SP5) (SUSE-SU-2025:03195-1)

The remote SUSE Linux SLES15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:03195-1 advisory. This update for the Linux Kernel 5.14.21-15050055110 fixes several issues. The following security issues were fixed: - CVE-2025-38001: netsche...

Security update for kernel-livepatch-MICRO-6-0-RT_Update_9

This update for kernel-livepatch-MICRO-6-0-RTUpdate9 fixes the following issues: CVE-2025-38087: net/sched: fix use-after-free in tapriodevnotifier bsc1245505 CVE-2025-38001: netsched: hfsc: Address reentrant enqueue adding class to eltree twice bsc1244235 CVE-2025-38000: schhfsc: Fix qlen...

Security update for the Linux Kernel (Live Patch 48 for SLE 15 SP3)

This update for the Linux Kernel 5.3.18-15030059174 fixes several issues. The following security issues were fixed: CVE-2025-21999: proc: fix UAF in procgetinode bsc1242579. CVE-2022-49053: scsi: target: tcmu: Fix possible page UAF bsc1237930. CVE-2025-38001: netsched: hfsc: Address reentrant...

SUSE-SU-2025:03129-1 Security update for the Linux Kernel (Live Patch 54 for SLE 15 SP3)

This update for the Linux Kernel 5.3.18-15030059195 fixes several issues. The following security issues were fixed: - CVE-2025-21999: proc: fix UAF in procgetinode bsc1242579. - CVE-2022-49053: scsi: target: tcmu: Fix possible page UAF bsc1237930. - CVE-2025-38001: netsched: hfsc: Address reentra...

kernel: net/sched: Always pass notifications when child class becomes empty

A use-after-free UAF vulnerability was found in the Linux kernel's net/sched subsystem, specifically in the Credit-Based Shaper CBS qdisc implementation schcbs. The vulnerability occurs because the CBS qdisc's reset function qdiscresetqueue only resets its internal queue but fails to reset its...

kernel: net/sched: Always pass notifications when child class becomes empty

A use-after-free UAF vulnerability was found in the Linux kernel's net/sched subsystem, specifically in the Credit-Based Shaper CBS qdisc implementation schcbs. The vulnerability occurs because the CBS qdisc's reset function qdiscresetqueue only resets its internal queue but fails to reset its...

kernel: net/sched: Always pass notifications when child class becomes empty

A use-after-free UAF vulnerability was found in the Linux kernel's net/sched subsystem, specifically in the Credit-Based Shaper CBS qdisc implementation schcbs. The vulnerability occurs because the CBS qdisc's reset function qdiscresetqueue only resets its internal queue but fails to reset its...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a qlen count error in schhfsc, which could lead to inconsistent queue statistics...

PT-2025-21643

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A Use After Free UAF vulnerability has been identified in the Linux kernel's HFSC network scheduler when it has a netem child qdisc. The issue arises because the HFSC assumes that...

DEBIAN-CVE-2025-21702

In the Linux kernel, the following vulnerability has been resolved: pfifotailenqueue: Drop new packet when sch-limit == 0 Expected behaviour: In case we reach scheduler's limit, pfifotailenqueue will drop a packet in scheduler's queue and decrease scheduler's qlen by one. Then, pfifotailenqueue...

SUSE-SU-2023:4030-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP2 kernel was updated to receive various security bugfixes. The following security bugs were fixed: - CVE-2023-4389: Fixed a reference counting issue in the Btrfs filesystem that could be exploited in order to leak internal kernel information or crash the system...