Linux Kernel: seqiv Use-After-Free Post crypto_aead_encrypt
CVE-2025-71131 Published on January 14, 2026
crypto: seqiv - Do not use req->iv after crypto_aead_encrypt
In the Linux kernel, the following vulnerability has been resolved:
crypto: seqiv - Do not use req->iv after crypto_aead_encrypt
As soon as crypto_aead_encrypt is called, the underlying request
may be freed by an asynchronous completion. Thus dereferencing
req->iv after it returns is invalid.
Instead of checking req->iv against info, create a new variable
unaligned_info and use it for that purpose instead.
Products Associated with CVE-2025-71131
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Affected Versions
Linux:- Version 0a270321dbf948963aeb0e8382fe17d2c2eb3771 and below 18202537856e0fae079fed2c9308780bcff2bb9d is affected.
- Version 0a270321dbf948963aeb0e8382fe17d2c2eb3771 and below baf0e2d1e03ddb04781dfe7f22a654d3611f69b2 is affected.
- Version 0a270321dbf948963aeb0e8382fe17d2c2eb3771 and below 50f196d2bbaee4ab2494bb1b0d294deba292951a is affected.
- Version 0a270321dbf948963aeb0e8382fe17d2c2eb3771 and below 0279978adec6f1296af66b642cce641c6580be46 is affected.
- Version 0a270321dbf948963aeb0e8382fe17d2c2eb3771 and below ccbb96434d88e32358894c879457b33f7508e798 is affected.
- Version 0a270321dbf948963aeb0e8382fe17d2c2eb3771 and below 5476f7f8a311236604b78fcc5b2a63b3a61b0169 is affected.
- Version 0a270321dbf948963aeb0e8382fe17d2c2eb3771 and below 50fdb78b7c0bcc550910ef69c0984e751cac72fa is affected.
- Version 2.6.25 is affected.
- Before 2.6.25 is unaffected.
- Version 5.10.248, <= 5.10.* is unaffected.
- Version 5.15.198, <= 5.15.* is unaffected.
- Version 6.1.160, <= 6.1.* is unaffected.
- Version 6.6.120, <= 6.6.* is unaffected.
- Version 6.12.64, <= 6.12.* is unaffected.
- Version 6.18.4, <= 6.18.* is unaffected.
- Version 6.19, <= * is unaffected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.