kernel: sch/netem: fix use after free in netem_dequeue

A use-after-free vulnerability was found in the Linux kernel. If netemdequeue enqueues a packet to inner qdisc and that qdisc returns NETXMITSTOLEN, the packet is dropped but qdisctreereducebacklog is not called to update the parent's q.qlen...

SUSE CVE-2025-37797

In the Linux kernel, the following vulnerability has been resolved: netsched: hfsc: Fix a UAF vulnerability in class handling This patch fixes a Use-After-Free vulnerability in the HFSC qdisc class handling. The issue occurs due to a time-of-check/time-of-use condition in hfscchangeclass when...

DEBIAN-CVE-2025-37797

In the Linux kernel, the following vulnerability has been resolved: netsched: hfsc: Fix a UAF vulnerability in class handling This patch fixes a Use-After-Free vulnerability in the HFSC qdisc class handling. The issue occurs due to a time-of-check/time-of-use condition in hfscchangeclass when...

UBUNTU-CVE-2025-37797

In the Linux kernel, the following vulnerability has been resolved: netsched: hfsc: Fix a UAF vulnerability in class handling This patch fixes a Use-After-Free vulnerability in the HFSC qdisc class handling. The issue occurs due to a time-of-check/time-of-use condition in hfscchangeclass when...

CVE-2025-37797 net_sched: hfsc: Fix a UAF vulnerability in class handling

In the Linux kernel, the following vulnerability has been resolved: netsched: hfsc: Fix a UAF vulnerability in class handling This patch fixes a Use-After-Free vulnerability in the HFSC qdisc class handling. The issue occurs due to a time-of-check/time-of-use condition in hfscchangeclass when...

Important: kernel-livepatch-5.10.233-224.894

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: netem: Update sch-q.qlen before qdisctreereducebacklog CVE-2025-21703 Affected Packages: kernel-livepatch-5.10.233-224.894 Issue Correction: Please ensure you have live patching enabled. Run yum update...

Important: kernel-livepatch-6.1.128-136.201

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: netem: Update sch-q.qlen before qdisctreereducebacklog CVE-2025-21703 Affected Packages: kernel-livepatch-6.1.128-136.201 Issue Correction: Please ensure you have live patching enabled. Run dnf update...

Important: kernel-livepatch-5.10.234-225.895

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: netem: Update sch-q.qlen before qdisctreereducebacklog CVE-2025-21703 Affected Packages: kernel-livepatch-5.10.234-225.895 Issue Correction: Please ensure you have live patching enabled. Run yum update...

Important: kernel-livepatch-6.1.127-135.201

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: netem: Update sch-q.qlen before qdisctreereducebacklog CVE-2025-21703 Affected Packages: kernel-livepatch-6.1.127-135.201 Issue Correction: Please ensure you have live patching enabled. Run dnf update...

Important: kernel-livepatch-5.10.234-225.910

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: netem: Update sch-q.qlen before qdisctreereducebacklog CVE-2025-21703 Affected Packages: kernel-livepatch-5.10.234-225.910 Issue Correction: Please ensure you have live patching enabled. Run yum update...

PT-2025-22175

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A vulnerability in the Linux kernel has been resolved, related to the net sched component, specifically the qfq queueing discipline. The issue arises when a netem child qdisc causes the...

PT-2025-22176

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A vulnerability in the Linux kernel has been resolved, related to the net sched: ets, where a netem child qdisc can cause the parent qdisc's enqueue callback to be reentrant. This can le...

PT-2025-22177

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A vulnerability in the Linux kernel has been resolved, related to the net sched component, specifically the drr class with netem as a child qdisc. The issue arises when the parent qdisc'...

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...

PT-2025-18776

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A Use-After-Free vulnerability has been identified in the HFSC qdisc class handling of the Linux kernel. The issue arises from a time-of-check/time-of-use condition in hfsc change class...

Security update for kernel-livepatch-MICRO-6-0-RT_Update_3

This update for kernel-livepatch-MICRO-6-0-RTUpdate3 fixes the following issues: CVE-2024-45016: Fixed netem: fix return value if duplicate enqueue fails bsc1230998 CVE-2024-47684: Fixed tcp: check skb is non-NULL in tcprtodeltaus bsc1231993 CVE-2024-50302: Fixed HID: core: zero-initialize the...

SUSE-SU-2025:20191-1 Security update for kernel-livepatch-MICRO-6-0-RT_Update_3

This update for kernel-livepatch-MICRO-6-0-RTUpdate3 fixes the following issues: - CVE-2024-45016: Fixed netem: fix return value if duplicate enqueue fails bsc1230998 - CVE-2024-47684: Fixed tcp: check skb is non-NULL in tcprtodeltaus bsc1231993 - CVE-2024-50302: Fixed HID: core: zero-initialize...

SUSE-SU-2025:20285-1 Security update for kernel-livepatch-MICRO-6-0_Update_2

This update for kernel-livepatch-MICRO-6-0Update2 fixes the following issues: - CVE-2024-57882: Fixed mptcp: fix TCP options overflow. bsc1235916 - CVE-2024-46818: Fixed drm/amd/display: check gpioid before used as array index bsc1231204 - CVE-2024-46815: Fixed drm/amd/display: check numvalidsets...

SUSE-SU-2025:20186-1 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-2024-57882: Fixed mptcp: fix TCP options overflow. bsc1235916 - CVE-2024-46818: Fixed drm/amd/display: check gpioid before used as array index bsc1231204 - CVE-2024-46815: Fixed drm/amd/display: check...

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-2024-57882: Fixed mptcp: fix TCP options overflow. bsc1235916 CVE-2024-46818: Fixed drm/amd/display: check gpioid before used as array index bsc1231204 CVE-2024-46815: Fixed drm/amd/display: check numvalidsets...