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SUSE: Kernel Livepatch Important Block Group Refcount Issues 2025:20542-1

* bsc#1238912 * bsc#1241579 * bsc#1244337 Cross-References: . # Security update for kernel-livepatch-MICRO-6-0_Update_5 Announcement ID: SUSE-SU-2025:20542-1 Release Date: 2025-08-01T08:37:43Z Rating: important References: * bsc#1238912 * bsc#1241579 * bsc#1244337 Cross-References: * CVE-2025-21772 * CVE-2025-22115 CVSS scores: * CVE-2025-21772 ( SUSE ): 8.5 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N * CVE-2025-21772 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2025-22115 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N * CVE-2025-22115 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Affected Products: * SUSE Linux Micro 6.1 An update that solves two vulnerabilities and has one fix can now be installed. ## Description: This update for kernel-livepatch-MICRO-6-0_Update_5 fixes the following issues: * CVE-2025-21772: partitions: mac: fix handling of bogus partition table (bsc#1238912) * CVE-2025-22115: btrfs: fix block group refcount race in btrfs_create_pending_block_groups() (bsc#1241579) ## 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: * SUSE Linux Micro 6.1 zypper in -t patch SUSE-SLE-Micro-6.1-kernel-63=1 ## Package List: * SUSE Linux Micro 6.1 (s390x x86_64) * kernel-livepatch-MICRO-6-0_Update_5-debugsource-4-1.2 * kernel-livepatch-6_4_0-25-default-debuginfo-4-1.2 * kernel-livepatch-6_4_0-25-default-4-1.2 ## References: * https://www.suse.com/security/cve/CVE-2025-21772.html * https://www.suse.com/security/cve/CVE-2025-22115.html * https://bugzilla.suse.com/show_bug.cgi?id=1238912 * https://bugzilla.suse.com/show_bug.cgi?id=1241579 * https://bugzilla.suse.com/show_bug.cgi?id=1244337 . SUSE unveils significant live-patching enhancements to the kernel,targeting key problems and security flaws in Linux Micro 6.1.. kernel live patch SUSE updates security. . Severity: Important. LinuxSecurity.com Team

Aug 05, 2025 •Important SuSE