Unrated severityNVD Advisory· Published Jun 24, 2026
crypto: ccp - copy IV using skcipher ivsize
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.
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Affected products
1Patches
Vulnerability mechanics
References
8- git.kernel.org/stable/c/227c1e1d9e2aa4cfc65ba446d5690da1f546cda4mitre
- git.kernel.org/stable/c/798d409a8949f3f495f238549b86de2886b129bdmitre
- git.kernel.org/stable/c/939061b2d0f7f15114e34b4ce878ef50ff4089c3mitre
- git.kernel.org/stable/c/a7a1f3cdd64d8a165d9b8c9e9ad7fb46ac19dfc4mitre
- git.kernel.org/stable/c/bb01d8f1f385bc9034ca114d3508c7fdea24fc9amitre
- git.kernel.org/stable/c/df9784bb5b637ac80f4a2768a58ca9a50bef28a9mitre
- git.kernel.org/stable/c/dfb2cf434829819268fe50f41542aad318ad62b2mitre
- git.kernel.org/stable/c/eecee15e263ccb8cd77170a56ab6c969cb54dd6amitre
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