CVE-2023-53373
crypto: seqiv - Handle EBUSY correctly
Vexday Risk Score
21Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 7.8EPSS 0.1%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
18 Sep 2025Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
In the Linux kernel, the following vulnerability has been resolved:
crypto: seqiv - Handle EBUSY correctly
As it is seqiv only handles the special return value of EINPROGERSS,
which means that in all other cases it will free data related to the
request.
However, as the caller of seqiv may specify MAY_BACKLOG, we also need
to expect EBUSY and treat it in the same way. Otherwise backlogged
requests will trigger a use-after-free.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/1effbddaff60eeef8017c6dea1ee0ed970164d14https://git.kernel.org/stable/c/32e62025e5e52fbe4812ef044759de7010b15dbchttps://git.kernel.org/stable/c/36ec108b7bd7e280edb22de028467bd09d644620https://git.kernel.org/stable/c/4d497e8b200a175094e0ac252ed878add39b8771https://git.kernel.org/stable/c/63551e4b7cbcd9914258827699eb2cb6ed6e4a16https://git.kernel.org/stable/c/9477db935eb690f697d9bcc4f608927841bc8b36https://git.kernel.org/stable/c/ae849d2f48019ff9c104e32bf588ccbfb200e971https://git.kernel.org/stable/c/cc4d0d4251748a8a68026938f4055d2ac47c5719