High severity7.8NVD Advisory· Published May 8, 2026· Updated May 18, 2026
CVE-2026-43330
CVE-2026-43330
Description
In the Linux kernel, the following vulnerability has been resolved:
crypto: caam - fix overflow on long hmac keys
When a key longer than block size is supplied, it is copied and then hashed into the real key. The memory allocated for the copy needs to be rounded to DMA cache alignment, as otherwise the hashed key may corrupt neighbouring memory.
The copying is performed using kmemdup, however this leads to an overflow: reading more bytes (aligned_len - keylen) from the keylen source buffer. Fix this by replacing kmemdup with kmalloc, followed by memcpy.
Affected products
83cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 7 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=6.3,<6.6.134
- cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*
- (no CPE)
- osv-coords75 versionspkg:rpm/almalinux/kernelpkg:rpm/almalinux/kernel-64kpkg:rpm/almalinux/kernel-64k-corepkg:rpm/almalinux/kernel-64k-debugpkg:rpm/almalinux/kernel-64k-debug-corepkg:rpm/almalinux/kernel-64k-debug-develpkg:rpm/almalinux/kernel-64k-debug-devel-matchedpkg:rpm/almalinux/kernel-64k-debug-modulespkg:rpm/almalinux/kernel-64k-debug-modules-corepkg:rpm/almalinux/kernel-64k-debug-modules-extrapkg:rpm/almalinux/kernel-64k-develpkg:rpm/almalinux/kernel-64k-devel-matchedpkg:rpm/almalinux/kernel-64k-modulespkg:rpm/almalinux/kernel-64k-modules-corepkg:rpm/almalinux/kernel-64k-modules-extrapkg:rpm/almalinux/kernel-abi-stablelistspkg:rpm/almalinux/kernel-corepkg:rpm/almalinux/kernel-cross-headerspkg:rpm/almalinux/kernel-debugpkg:rpm/almalinux/kernel-debug-corepkg:rpm/almalinux/kernel-debug-develpkg:rpm/almalinux/kernel-debug-devel-matchedpkg:rpm/almalinux/kernel-debug-modulespkg:rpm/almalinux/kernel-debug-modules-corepkg:rpm/almalinux/kernel-debug-modules-extrapkg:rpm/almalinux/kernel-debug-uki-virtpkg:rpm/almalinux/kernel-develpkg:rpm/almalinux/kernel-devel-matchedpkg:rpm/almalinux/kernel-docpkg:rpm/almalinux/kernel-headerspkg:rpm/almalinux/kernel-modulespkg:rpm/almalinux/kernel-modules-corepkg:rpm/almalinux/kernel-modules-extrapkg:rpm/almalinux/kernel-modules-extra-matchedpkg:rpm/almalinux/kernel-rtpkg:rpm/almalinux/kernel-rt-64kpkg:rpm/almalinux/kernel-rt-64k-corepkg:rpm/almalinux/kernel-rt-64k-debugpkg:rpm/almalinux/kernel-rt-64k-debug-corepkg:rpm/almalinux/kernel-rt-64k-debug-develpkg:rpm/almalinux/kernel-rt-64k-debug-modulespkg:rpm/almalinux/kernel-rt-64k-debug-modules-corepkg:rpm/almalinux/kernel-rt-64k-debug-modules-extrapkg:rpm/almalinux/kernel-rt-64k-develpkg:rpm/almalinux/kernel-rt-64k-modulespkg:rpm/almalinux/kernel-rt-64k-modules-corepkg:rpm/almalinux/kernel-rt-64k-modules-extrapkg:rpm/almalinux/kernel-rt-corepkg:rpm/almalinux/kernel-rt-debugpkg:rpm/almalinux/kernel-rt-debug-corepkg:rpm/almalinux/kernel-rt-debug-develpkg:rpm/almalinux/kernel-rt-debug-modulespkg:rpm/almalinux/kernel-rt-debug-modules-corepkg:rpm/almalinux/kernel-rt-debug-modules-extrapkg:rpm/almalinux/kernel-rt-develpkg:rpm/almalinux/kernel-rt-modulespkg:rpm/almalinux/kernel-rt-modules-corepkg:rpm/almalinux/kernel-rt-modules-extrapkg:rpm/almalinux/kernel-toolspkg:rpm/almalinux/kernel-tools-libspkg:rpm/almalinux/kernel-tools-libs-develpkg:rpm/almalinux/kernel-uki-virtpkg:rpm/almalinux/kernel-uki-virt-addonspkg:rpm/almalinux/kernel-zfcpdumppkg:rpm/almalinux/kernel-zfcpdump-corepkg:rpm/almalinux/kernel-zfcpdump-develpkg:rpm/almalinux/kernel-zfcpdump-devel-matchedpkg:rpm/almalinux/kernel-zfcpdump-modulespkg:rpm/almalinux/kernel-zfcpdump-modules-corepkg:rpm/almalinux/kernel-zfcpdump-modules-extrapkg:rpm/almalinux/libperfpkg:rpm/almalinux/perfpkg:rpm/almalinux/python3-perfpkg:rpm/almalinux/rtlapkg:rpm/almalinux/rv
< 6.12.0-211.26.1.el10_2+ 74 more
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
Patches
Vulnerability mechanics
References
5- git.kernel.org/stable/c/31022cfde5235c45fa765f0aabeff5f0652852f2nvdPatch
- git.kernel.org/stable/c/80688afb9c35b3934ce2d6be9973758915e2e0efnvdPatch
- git.kernel.org/stable/c/aa545df011338df13f0833fc1fabcb15c0521959nvdPatch
- git.kernel.org/stable/c/c2fb4984fe09fc176fe4c12d5e3edf626df6511dnvdPatch
- git.kernel.org/stable/c/cebc5ebd958346195b77f42d0cd5141b4e448faenvdPatch
News mentions
0No linked articles in our index yet.