High severity7.8NVD Advisory· Published Jun 24, 2026· Updated Jul 15, 2026

CVE-2026-53016

Description

In the Linux kernel, the following vulnerability has been resolved:

crypto: ccp - copy IV using skcipher ivsize

AF_ALG rfc3686-ctr-aes-ccp requests pass an 8-byte IV to the driver.

ccp_aes_complete() restores AES_BLOCK_SIZE bytes into the caller's IV buffer while RFC3686 skciphers expose an 8-byte IV, so the restore overruns the provided buffer.

Use crypto_skcipher_ivsize() to copy only the algorithm's IV length.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Linux/Kernel2 versions
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=3.14,<5.10.258
- (no CPE)
osv-coords76 versions
pkg:linux/kernel pkg:rpm/almalinux/kernel pkg:rpm/almalinux/kernel-64k pkg:rpm/almalinux/kernel-64k-core pkg:rpm/almalinux/kernel-64k-debug pkg:rpm/almalinux/kernel-64k-debug-core pkg:rpm/almalinux/kernel-64k-debug-devel pkg:rpm/almalinux/kernel-64k-debug-devel-matched pkg:rpm/almalinux/kernel-64k-debug-modules pkg:rpm/almalinux/kernel-64k-debug-modules-core pkg:rpm/almalinux/kernel-64k-debug-modules-extra pkg:rpm/almalinux/kernel-64k-devel pkg:rpm/almalinux/kernel-64k-devel-matched pkg:rpm/almalinux/kernel-64k-modules pkg:rpm/almalinux/kernel-64k-modules-core pkg:rpm/almalinux/kernel-64k-modules-extra pkg:rpm/almalinux/kernel-abi-stablelists pkg:rpm/almalinux/kernel-core pkg:rpm/almalinux/kernel-cross-headers pkg:rpm/almalinux/kernel-debug pkg:rpm/almalinux/kernel-debug-core pkg:rpm/almalinux/kernel-debug-devel pkg:rpm/almalinux/kernel-debug-devel-matched pkg:rpm/almalinux/kernel-debug-modules pkg:rpm/almalinux/kernel-debug-modules-core pkg:rpm/almalinux/kernel-debug-modules-extra pkg:rpm/almalinux/kernel-debug-uki-virt pkg:rpm/almalinux/kernel-devel pkg:rpm/almalinux/kernel-devel-matched pkg:rpm/almalinux/kernel-doc pkg:rpm/almalinux/kernel-headers pkg:rpm/almalinux/kernel-modules pkg:rpm/almalinux/kernel-modules-core pkg:rpm/almalinux/kernel-modules-extra pkg:rpm/almalinux/kernel-modules-extra-matched pkg:rpm/almalinux/kernel-rt pkg:rpm/almalinux/kernel-rt-64k pkg:rpm/almalinux/kernel-rt-64k-core pkg:rpm/almalinux/kernel-rt-64k-debug pkg:rpm/almalinux/kernel-rt-64k-debug-core pkg:rpm/almalinux/kernel-rt-64k-debug-devel pkg:rpm/almalinux/kernel-rt-64k-debug-modules pkg:rpm/almalinux/kernel-rt-64k-debug-modules-core pkg:rpm/almalinux/kernel-rt-64k-debug-modules-extra pkg:rpm/almalinux/kernel-rt-64k-devel pkg:rpm/almalinux/kernel-rt-64k-modules pkg:rpm/almalinux/kernel-rt-64k-modules-core pkg:rpm/almalinux/kernel-rt-64k-modules-extra pkg:rpm/almalinux/kernel-rt-core pkg:rpm/almalinux/kernel-rt-debug pkg:rpm/almalinux/kernel-rt-debug-core pkg:rpm/almalinux/kernel-rt-debug-devel pkg:rpm/almalinux/kernel-rt-debug-modules pkg:rpm/almalinux/kernel-rt-debug-modules-core pkg:rpm/almalinux/kernel-rt-debug-modules-extra pkg:rpm/almalinux/kernel-rt-devel pkg:rpm/almalinux/kernel-rt-modules pkg:rpm/almalinux/kernel-rt-modules-core pkg:rpm/almalinux/kernel-rt-modules-extra pkg:rpm/almalinux/kernel-tools pkg:rpm/almalinux/kernel-tools-libs pkg:rpm/almalinux/kernel-tools-libs-devel pkg:rpm/almalinux/kernel-uki-virt pkg:rpm/almalinux/kernel-uki-virt-addons pkg:rpm/almalinux/kernel-zfcpdump pkg:rpm/almalinux/kernel-zfcpdump-core pkg:rpm/almalinux/kernel-zfcpdump-devel pkg:rpm/almalinux/kernel-zfcpdump-devel-matched pkg:rpm/almalinux/kernel-zfcpdump-modules pkg:rpm/almalinux/kernel-zfcpdump-modules-core pkg:rpm/almalinux/kernel-zfcpdump-modules-extra pkg:rpm/almalinux/libperf pkg:rpm/almalinux/perf pkg:rpm/almalinux/python3-perf pkg:rpm/almalinux/rtla pkg:rpm/almalinux/rv
>= 3.14.0, < 5.10.258+ 75 more
- (no CPE)range: >= 3.14.0, < 5.10.258
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 6.12.0-211.34.1.el10_2
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8
- (no CPE)range: < 5.14.0-687.25.1.el9_8

Patches

Vulnerability mechanics

References

git.kernel.org/stable/c/227c1e1d9e2aa4cfc65ba446d5690da1f546cda4nvdPatch
git.kernel.org/stable/c/798d409a8949f3f495f238549b86de2886b129bdnvdPatch
git.kernel.org/stable/c/939061b2d0f7f15114e34b4ce878ef50ff4089c3nvdPatch
git.kernel.org/stable/c/a7a1f3cdd64d8a165d9b8c9e9ad7fb46ac19dfc4nvdPatch
git.kernel.org/stable/c/bb01d8f1f385bc9034ca114d3508c7fdea24fc9anvdPatch
git.kernel.org/stable/c/df9784bb5b637ac80f4a2768a58ca9a50bef28a9nvdPatch
git.kernel.org/stable/c/dfb2cf434829819268fe50f41542aad318ad62b2nvdPatch
git.kernel.org/stable/c/eecee15e263ccb8cd77170a56ab6c969cb54dd6anvdPatch
access.redhat.com/errata/RHSA-2026:38491nvdThird Party Advisory
access.redhat.com/errata/RHSA-2026:39494nvdThird Party Advisory
access.redhat.com/security/cve/CVE-2026-53016nvdThird Party Advisory
bugzilla.redhat.com/show_bug.cginvdThird Party Advisory
security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53016.jsonnvdThird Party Advisory

News mentions

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cvss	0.507
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000