High severity8.8NVD Advisory· Published Jul 25, 2026· Updated Sep 4, 2026
CVE-2026-64382
CVE-2026-64382
Description
In the Linux kernel, the following vulnerability has been resolved:
smb: client: fix double-free in SMB2_open() replay
A response-bearing attempt can return a replayable error and free its response buffer. If SMB2_open_init() fails before the next send, cleanup retains the previous buffer type and frees that response again.
Reset response bookkeeping before each attempt to prevent the stale free.
Affected products
78- osv-coords77 versionspkg:rpm/almalinux/kernel-debugpkg:rpm/almalinux/kernel-rt-modules-extrapkg:rpm/almalinux/kernel-64k-debug-corepkg:rpm/almalinux/kernel-cross-headerspkg:rpm/almalinux/kernel-debug-corepkg:rpm/almalinux/kernel-rt-64k-modulespkg:rpm/almalinux/libperfpkg:rpm/almalinux/kernel-rt-64k-debug-develpkg:rpm/almalinux/kernel-zfcpdumppkg:rpm/almalinux/kernel-64k-modulespkg:rpm/almalinux/kernel-modules-extrapkg:rpm/almalinux/kernel-rt-64k-debug-modulespkg:rpm/almalinux/kernel-64k-debugpkg:rpm/almalinux/kernel-develpkg:rpm/almalinux/kernel-rt-debug-modulespkg:rpm/almalinux/kernelpkg:rpm/almalinux/kernel-64k-corepkg:rpm/almalinux/kernel-64k-debug-modules-extrapkg:rpm/almalinux/kernel-debug-modules-corepkg:rpm/almalinux/kernel-modules-corepkg:rpm/almalinux/kernel-rt-64kpkg:rpm/almalinux/kernel-rt-64k-debug-corepkg:rpm/almalinux/kernel-rtpkg:rpm/almalinux/kernel-tools-libs-develpkg:rpm/almalinux/kernel-corepkg:rpm/almalinux/kernel-modulespkg:rpm/almalinux/kernel-rt-corepkg:rpm/almalinux/kernel-rt-debug-modules-extrapkg:rpm/almalinux/kernel-zfcpdump-devel-matchedpkg:rpm/almalinux/kernel-64kpkg:rpm/almalinux/kernel-64k-devel-matchedpkg:rpm/almalinux/kernel-debug-uki-virtpkg:rpm/almalinux/kernel-64k-modules-corepkg:rpm/almalinux/kernel-64k-modules-extrapkg:rpm/almalinux/kernel-zfcpdump-modulespkg:rpm/almalinux/kernel-zfcpdump-modules-extrapkg:rpm/almalinux/kernel-64k-debug-modulespkg:rpm/almalinux/kernel-abi-stablelistspkg:rpm/opensuse/kernel-source&distro=openSUSE%20Tumbleweedpkg:rpm/almalinux/kernel-debug-develpkg:rpm/almalinux/kernel-debug-modulespkg:rpm/almalinux/kernel-rt-debug-modules-corepkg:rpm/almalinux/kernel-zfcpdump-corepkg:rpm/almalinux/rtlapkg:rpm/almalinux/rvpkg:rpm/almalinux/kernel-64k-debug-develpkg:rpm/almalinux/kernel-64k-develpkg:rpm/almalinux/kernel-rt-64k-debugpkg:rpm/almalinux/kernel-debug-devel-matchedpkg:rpm/almalinux/kernel-debug-modules-extrapkg:rpm/almalinux/kernel-devel-matchedpkg:rpm/almalinux/kernel-docpkg:rpm/almalinux/kernel-headerspkg:rpm/almalinux/kernel-modules-extra-matchedpkg:rpm/almalinux/kernel-rt-64k-corepkg:rpm/almalinux/kernel-rt-64k-debug-modules-extrapkg:rpm/almalinux/kernel-rt-debugpkg:rpm/almalinux/kernel-rt-debug-corepkg:rpm/almalinux/kernel-rt-debug-develpkg:rpm/almalinux/kernel-rt-modules-corepkg:rpm/almalinux/kernel-uki-virtpkg:rpm/almalinux/python3-perfpkg:rpm/almalinux/kernel-rt-develpkg:rpm/almalinux/kernel-zfcpdump-modules-corepkg:linux/kernelpkg:rpm/almalinux/kernel-64k-debug-devel-matchedpkg:rpm/almalinux/kernel-64k-debug-modules-corepkg:rpm/almalinux/kernel-rt-64k-modules-extrapkg:rpm/almalinux/perfpkg:rpm/almalinux/kernel-rt-64k-debug-modules-corepkg:rpm/almalinux/kernel-rt-64k-develpkg:rpm/almalinux/kernel-rt-64k-modules-corepkg:rpm/almalinux/kernel-toolspkg:rpm/almalinux/kernel-tools-libspkg:rpm/almalinux/kernel-zfcpdump-develpkg:rpm/almalinux/kernel-rt-modulespkg:rpm/almalinux/kernel-uki-virt-addons
< 6.12.0-211.49.1.el10_2+ 76 more
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 7.1.7-1.1
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.6.145
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
Patches
Vulnerability mechanics
References
5- git.kernel.org/stable/c/02bc2896bdc3e29362d6e40d404006944a159c25nvdPatch
- git.kernel.org/stable/c/14498ff5ce0f272ce0ef988721413e06b7038972nvdPatch
- git.kernel.org/stable/c/3196b5192f246df4272072f61a2f4a3e9967f55dnvdPatch
- git.kernel.org/stable/c/b55e182f2324bc6a604c21a47aa6c448f719a532nvdPatch
- git.kernel.org/stable/c/ff2d30927bc3bf3c629f0768d2068096e64ef5cenvdPatch
News mentions
0No linked articles in our index yet.