CVE-2026-43249

9p/xen: protect xen_9pfs_front_free against concurrent calls

CVE-2026-43249 is fixed in 16 products on 1 platform, first by DEBIAN-CVE-2026-43249, released May 15, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
8.8
Important
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0032
24th percentile

9p/xen: protect xen_9pfs_front_free against concurrent calls (bsc#1264476).

Where it's fixed

ProductFixed inFixReleased
Linux
dtb-aarch64 · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-64kb · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-64kb · sles 15.7 6.4.0-150700.53.60.1 SUSE-SU-2026:2482-1 Jun 22, 2026
kernel-64kb · sles 16.0 6.12.0-160000.37.1 SUSE-SU-2026:23231-1 Aug 11, 2026
kernel-azure · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-azure · sles 15.7 6.4.0-150700.53.60.1 SUSE-SU-2026:2482-1 Jun 22, 2026
kernel-azure · sles 16.0 6.12.0-160000.37.1 SUSE-SU-2026:23231-1 Aug 11, 2026
kernel-default · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-default · sles 15.7 6.4.0-150700.53.60.1 SUSE-SU-2026:2482-1 Jun 22, 2026
kernel-default · sles 16.0 6.12.0-160000.37.1 SUSE-SU-2026:23237-1 Aug 11, 2026
kernel-default-base · opensuse-leap 16.0 6.12.0-160000.37.1.160000.2.19 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-default-base · sles 15.7 6.4.0-150700.53.60.1.150700.17.35.4 SUSE-SU-2026:2482-1 Jun 22, 2026
kernel-default-base · sles 16.0 6.12.0-160000.37.1.160000.2.19 SUSE-SU-2026:23231-1 Aug 11, 2026
kernel-docs · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-docs · sles 15.7 6.4.0-150700.53.60.1 SUSE-SU-2026:2482-1 Jun 22, 2026
kernel-docs · sles 16.0 6.12.0-160000.37.1 SUSE-SU-2026:23231-1 Aug 11, 2026
kernel-kvmsmall · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-kvmsmall · sles 16.0 6.12.0-160000.37.1 SUSE-SU-2026:23231-1 Aug 11, 2026
kernel-livepatch-SLE15-SP7-RT_Update_16 · sles 15.7 1-150700.1.5.2 SUSE-SU-2026:2591-1 Jun 23, 2026
kernel-livepatch-SLE15-SP7_Update_16 · sles 15.7 1-150700.15.3.2 SUSE-SU-2026:2482-1 Jun 22, 2026
kernel-obs-build · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-obs-build · sles 15.7 6.4.0-150700.53.60.2 SUSE-SU-2026:2482-1 Jun 22, 2026
kernel-obs-qa · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-obs-qa · sles 16.0 6.12.0-160000.37.1 SUSE-SU-2026:23231-1 Aug 11, 2026
kernel-rt · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-source · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-source · sles 15.7 6.4.0-150700.53.60.1 SUSE-SU-2026:2482-1 Jun 22, 2026
kernel-source · sles 16.0 6.12.0-160000.37.1 SUSE-SU-2026:23231-1 Aug 11, 2026
kernel-syms · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-syms · sles 15.7 6.4.0-150700.53.60.1 SUSE-SU-2026:2482-1 Jun 22, 2026
kernel-syms · sles 16.0 6.12.0-160000.37.1 SUSE-SU-2026:23231-1 Aug 11, 2026
kernel-zfcpdump · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-zfcpdump · sles 15.7 6.4.0-150700.53.60.1 SUSE-SU-2026:2482-1 Jun 22, 2026
kernel-zfcpdump · sles 16.0 6.12.0-160000.37.1 SUSE-SU-2026:23231-1 Aug 11, 2026
linux · Debian 13.5 (trixie) 6.12.85-1 DEBIAN-CVE-2026-43249 May 15, 2026
linux · Debian 14 6.19.6-1 DEBIAN-CVE-2026-43249 May 15, 2026

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