openSUSE: Kernel Important Vulnerabilities Fix SUSE-SU-2025:02704-1
opensuse
August 5, 2025
An update that solves three vulnerabilities can now be installed.
Description
This update for the Linux Kernel 5.3.18-150300_59_207 fixes several issues.
The following security issues were fixed:
* CVE-2025-37797: net_sched: hfsc: Fix a UAF vulnerability in class handling
(bsc#1245793).
* CVE-2025-37752: net_sched: sch_sfq: move the limit validation (bsc#1245776).
* CVE-2025-21702: pfifo_tail_enqueue: Drop new packet when sch->limit == 0
(bsc#1245797).
Topics Covered
Patch
## Patch Instructions:
To install this SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:
* openSUSE Leap 15.3
zypper in -t patch SUSE-2025-2704=1
* SUSE Linux Enterprise Live Patching 15-SP3
zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP3-2025-2704=1
Package List
* openSUSE Leap 15.3 (ppc64le s390x x86_64)
* kernel-livepatch-5_3_18-150300_59_207-default-2-150300.2.1
* kernel-livepatch-5_3_18-150300_59_207-default-debuginfo-2-150300.2.1
* kernel-livepatch-SLE15-SP3_Update_58-debugsource-2-150300.2.1
* openSUSE Leap 15.3 (x86_64)
* kernel-livepatch-5_3_18-150300_59_207-preempt-debuginfo-2-150300.2.1
* kernel-livepatch-5_3_18-150300_59_207-preempt-2-150300.2.1
* SUSE Linux Enterprise Live Patching 15-SP3 (ppc64le s390x x86_64)
* kernel-livepatch-5_3_18-150300_59_207-default-2-150300.2.1
* kernel-livepatch-5_3_18-150300_59_207-default-debuginfo-2-150300.2.1
* kernel-livepatch-SLE15-SP3_Update_58-debugsource-2-150300.2.1
References
* bsc#1245776
* bsc#1245793
* bsc#1245797
## References:
* https://www.suse.com/security/cve/CVE-2025-21702.html
* https://www.suse.com/security/cve/CVE-2025-37752.html
* https://www.suse.com/security/cve/CVE-2025-37797.html
* https://bugzilla.suse.com/show_bug.cgi?id=1245776
* https://bugzilla.suse.com/show_bug.cgi?id=1245793
* https://bugzilla.suse.com/show_bug.cgi?id=1245797
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Severity
important
Lowest
Low
Medium
High
Critical
Announcement ID: SUSE-SU-2025:02704-1
Release Date: 2025-08-05T10:04:26Z
Affected Products:
* openSUSE Leap 15.3
* SUSE Linux Enterprise High Performance Computing 15 SP3
* SUSE Linux Enterprise Live Patching 15-SP3
* SUSE Linux Enterprise Micro 5.1
* SUSE Linux Enterprise Micro 5.2
* SUSE Linux Enterprise Server 15 SP3
* SUSE Linux Enterprise Server for SAP Applications 15 SP3
Topics Covered
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