Unity Linux 20.1050e Security Update: kernel (UTSA-2026-005185)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005185 advisory. In the Linux kernel, the following vulnerability has been resolved: pfifotailenqueue: Drop new packet when sch-limit == 0 Expected behaviour: In case we reach...

kernel: pfifo_tail_enqueue: Drop new packet when sch->limit == 0

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-2025:20583-1 Security update for kernel-livepatch-MICRO-6-0-RT_Update_8

This update for kernel-livepatch-MICRO-6-0-RTUpdate8 fixes the following issues: - CVE-2025-37752: netsched: schsfq: move the limit validation bsc1245776 - CVE-2025-37797: netsched: hfsc: Fix a UAF vulnerability in class handling bsc1245793 - CVE-2025-21702: pfifotailenqueue: Drop new packet when...

Security update for kernel-livepatch-MICRO-6-0_Update_4

This update for kernel-livepatch-MICRO-6-0Update4 fixes the following issues: CVE-2024-56664: bpf, sockmap: fix race between element replace and close bsc1235250 CVE-2025-37752: netsched: schsfq: move the limit validation bsc1245776 CVE-2025-37797: netsched: hfsc: Fix a UAF vulnerability in class...

OESA-2025-1874 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: 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...

OESA-2025-1869 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: 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...

SUSE-SU-2025:20397-1 Security update for kernel-livepatch-MICRO-6-0_Update_2

This update for kernel-livepatch-MICRO-6-0Update2 fixes the following issues: - CVE-2024-49855: nbd: fix race between timeout and normal completion bsc1232900 - CVE-2025-21680: pktgen: avoid out-of-bounds access in getimixentries bsc1236701 - CVE-2024-58013: Bluetooth: MGMT: Fix slab-use-after-fr...

SUSE-SU-2025:20400-1 Security update for kernel-livepatch-MICRO-6-0-RT_Update_2

This update for kernel-livepatch-MICRO-6-0-RTUpdate2 fixes the following issues: - CVE-2024-49855: nbd: fix race between timeout and normal completion bsc1232900 - CVE-2025-21680: pktgen: avoid out-of-bounds access in getimixentries bsc1236701 - CVE-2024-58013: Bluetooth: MGMT: Fix...

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...

CVE-2025-21702

The CVE CVE-2025-21702 concerns a bug in Linux kernel pfifo_tail_enqueue where, when sch->limit == 0, a path can cause qlen to be increased to one even if a preceding drop would have kept it at zero. This leads to a mismatch where a parent qlen no longer equals the sum of its children’s qlen, ...

CVE-2025-21702 pfifo_tail_enqueue: Drop new packet when sch->limit == 0

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...