Security update for the Linux Kernel (Live Patch 14 for SUSE Linux Enterprise 15 SP7)
This security update for the SUSE Linux Enterprise Kernel 6.4.0-150700.53.52 addresses multiple vulnerabilities including a heap overflow in the NFSv4.0 LOCK replay cache, use-after-free in network packet handling, rejection of oversized directory entries in fuse, and other kernel networking and filesystem issues. These fixes resolve high-severity security problems that could impact system stability and security.
AI Analysis
Technical Summary
The SUSE Linux Enterprise Kernel 6.4.0-150700.53.52 update fixes several security vulnerabilities: CVE-2026-31402 addresses a heap overflow in the NFSv4.0 LOCK replay cache; CVE-2026-31504 fixes a use-after-free in net packet_release() caused by a NETDEV_UP race; CVE-2026-31694 rejects oversized directory entries in the fuse page cache; CVE-2026-43503 includes final fixes related to dirty.frag; CVE-2026-46323 prevents merging of zero-copy skbs in net gro; and a net/sched fix addresses partial copy-on-write leading to page cache issues. These patches collectively improve kernel security and stability.
Potential Impact
Successful exploitation of these vulnerabilities could lead to memory corruption conditions such as heap overflow and use-after-free, potentially resulting in denial of service or privilege escalation. The issues affect kernel components related to network file systems, packet processing, and filesystem caching, which are critical for system operation and security.
Mitigation Recommendations
A security update is available for SUSE Linux Enterprise Kernel 6.4.0-150700.53.52 that addresses these vulnerabilities. Users should apply the official SUSE security update SUSE-SU-2026:2594-1 or later to remediate these issues. No additional mitigations are specified beyond applying the provided patch.
Security update for the Linux Kernel (Live Patch 14 for SUSE Linux Enterprise 15 SP7)
Description
This security update for the SUSE Linux Enterprise Kernel 6.4.0-150700.53.52 addresses multiple vulnerabilities including a heap overflow in the NFSv4.0 LOCK replay cache, use-after-free in network packet handling, rejection of oversized directory entries in fuse, and other kernel networking and filesystem issues. These fixes resolve high-severity security problems that could impact system stability and security.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The SUSE Linux Enterprise Kernel 6.4.0-150700.53.52 update fixes several security vulnerabilities: CVE-2026-31402 addresses a heap overflow in the NFSv4.0 LOCK replay cache; CVE-2026-31504 fixes a use-after-free in net packet_release() caused by a NETDEV_UP race; CVE-2026-31694 rejects oversized directory entries in the fuse page cache; CVE-2026-43503 includes final fixes related to dirty.frag; CVE-2026-46323 prevents merging of zero-copy skbs in net gro; and a net/sched fix addresses partial copy-on-write leading to page cache issues. These patches collectively improve kernel security and stability.
Potential Impact
Successful exploitation of these vulnerabilities could lead to memory corruption conditions such as heap overflow and use-after-free, potentially resulting in denial of service or privilege escalation. The issues affect kernel components related to network file systems, packet processing, and filesystem caching, which are critical for system operation and security.
Mitigation Recommendations
A security update is available for SUSE Linux Enterprise Kernel 6.4.0-150700.53.52 that addresses these vulnerabilities. Users should apply the official SUSE security update SUSE-SU-2026:2594-1 or later to remediate these issues. No additional mitigations are specified beyond applying the provided patch.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- SUSE Product Security Team
- Advisory Id
- SUSE-SU-2026:2594-1
- Cve Count
- 5
- Additional Cves
- ["CVE-2026-31504","CVE-2026-31694","CVE-2026-43503","CVE-2026-46323"]
- Cvss Version
- null
Threat ID: 6a3c0d22eed863c81e23e8da
Added to database: 06/24/2026, 17:00:18 UTC
Last enriched: 06/24/2026, 17:16:58 UTC
Last updated: 06/24/2026, 19:03:31 UTC
Views: 4
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