CVE-2026-53016
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 2b789435d7f36ed918d92db647f3a2f3fec9bb1f < 939061b2d0f7f15114e34b4ce878ef50ff4089c3 | affected |
| Linux | Linux | 2b789435d7f36ed918d92db647f3a2f3fec9bb1f < 798d409a8949f3f495f238549b86de2886b129bd | affected |
| Linux | Linux | 2b789435d7f36ed918d92db647f3a2f3fec9bb1f < dfb2cf434829819268fe50f41542aad318ad62b2 | affected |
| Linux | Linux | 2b789435d7f36ed918d92db647f3a2f3fec9bb1f < eecee15e263ccb8cd77170a56ab6c969cb54dd6a | affected |
| Linux | Linux | 2b789435d7f36ed918d92db647f3a2f3fec9bb1f < bb01d8f1f385bc9034ca114d3508c7fdea24fc9a | affected |
| Linux | Linux | 2b789435d7f36ed918d92db647f3a2f3fec9bb1f < df9784bb5b637ac80f4a2768a58ca9a50bef28a9 | affected |
| Linux | Linux | 2b789435d7f36ed918d92db647f3a2f3fec9bb1f < 227c1e1d9e2aa4cfc65ba446d5690da1f546cda4 | affected |
| Linux | Linux | 2b789435d7f36ed918d92db647f3a2f3fec9bb1f < a7a1f3cdd64d8a165d9b8c9e9ad7fb46ac19dfc4 | affected |
| Linux | Linux | 3.14 | affected |
| Linux | Linux | 0 < 3.14 | unaffected |
| Linux | Linux | 5.10.258 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.209 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.175 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.141 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.91 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.33 <= 6.18.* | unaffected |
| Linux | Linux | 7.0.10 <= 7.0.* | unaffected |
| Linux | Linux | 7.1 <= * | unaffected |
Weaknesses
ADP Enrichment
kernel: crypto: ccp - copy IV using skcipher ivsize
Additional References
- https://access.redhat.com/security/cve/CVE-2026-53016
- https://bugzilla.redhat.com/show_bug.cgi?id=2492269
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53016.json
References
- https://git.kernel.org/stable/c/939061b2d0f7f15114e34b4ce878ef50ff4089c3
- https://git.kernel.org/stable/c/798d409a8949f3f495f238549b86de2886b129bd
- https://git.kernel.org/stable/c/dfb2cf434829819268fe50f41542aad318ad62b2
- https://git.kernel.org/stable/c/eecee15e263ccb8cd77170a56ab6c969cb54dd6a
- https://git.kernel.org/stable/c/bb01d8f1f385bc9034ca114d3508c7fdea24fc9a
- https://git.kernel.org/stable/c/df9784bb5b637ac80f4a2768a58ca9a50bef28a9
- https://git.kernel.org/stable/c/227c1e1d9e2aa4cfc65ba446d5690da1f546cda4
- https://git.kernel.org/stable/c/a7a1f3cdd64d8a165d9b8c9e9ad7fb46ac19dfc4
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