CVE-2026-53016
crypto: ccp - copy IV using skcipher ivsize
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jun 24, 2026 |
| Last Updated | Aug 5, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linux / Linux
2b789435d7f36ed918d92db647f3a2f3fec9bb1f < 939061b2d0f7f15114e34b4ce878ef50ff4089c3 2b789435d7f36ed918d92db647f3a2f3fec9bb1f < 798d409a8949f3f495f238549b86de2886b129bd 2b789435d7f36ed918d92db647f3a2f3fec9bb1f < dfb2cf434829819268fe50f41542aad318ad62b2 2b789435d7f36ed918d92db647f3a2f3fec9bb1f < eecee15e263ccb8cd77170a56ab6c969cb54dd6a 2b789435d7f36ed918d92db647f3a2f3fec9bb1f < bb01d8f1f385bc9034ca114d3508c7fdea24fc9a 2b789435d7f36ed918d92db647f3a2f3fec9bb1f < df9784bb5b637ac80f4a2768a58ca9a50bef28a9 2b789435d7f36ed918d92db647f3a2f3fec9bb1f < 227c1e1d9e2aa4cfc65ba446d5690da1f546cda4 2b789435d7f36ed918d92db647f3a2f3fec9bb1f < a7a1f3cdd64d8a165d9b8c9e9ad7fb46ac19dfc4
Linux / Linux
3.14
References
git.kernel.org: https://git.kernel.org/stable/c/939061b2d0f7f15114e34b4ce878ef50ff4089c3 git.kernel.org: https://git.kernel.org/stable/c/798d409a8949f3f495f238549b86de2886b129bd git.kernel.org: https://git.kernel.org/stable/c/dfb2cf434829819268fe50f41542aad318ad62b2 git.kernel.org: https://git.kernel.org/stable/c/eecee15e263ccb8cd77170a56ab6c969cb54dd6a git.kernel.org: https://git.kernel.org/stable/c/bb01d8f1f385bc9034ca114d3508c7fdea24fc9a git.kernel.org: https://git.kernel.org/stable/c/df9784bb5b637ac80f4a2768a58ca9a50bef28a9 git.kernel.org: https://git.kernel.org/stable/c/227c1e1d9e2aa4cfc65ba446d5690da1f546cda4 git.kernel.org: https://git.kernel.org/stable/c/a7a1f3cdd64d8a165d9b8c9e9ad7fb46ac19dfc4 access.redhat.com: https://access.redhat.com/security/cve/CVE-2026-53016 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2492269 security.access.redhat.com: https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53016.json access.redhat.com: https://access.redhat.com/errata/RHSA-2026:39494 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:38491