CVE-2023-53373 : faille élevée linux linux kernel (CVSS 7.8)

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.

Sévérité

Élevée (CVSS 7.8)

Vecteur CVSS

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation active

Non signalée par la CISA

Publication

18 sept. 2025

Dernière mise à jour

17 juin 2026

• linux linux kernel

• Fiche CVE-2023-53373 sur le NVD (NIST)
• git.kernel.org/stable/c/1effbddaff60eeef8017c6dea1ee0ed970164…
• git.kernel.org/stable/c/32e62025e5e52fbe4812ef044759de7010b15…
• git.kernel.org/stable/c/36ec108b7bd7e280edb22de028467bd09d644…
• git.kernel.org/stable/c/4d497e8b200a175094e0ac252ed878add39b8…
• git.kernel.org/stable/c/63551e4b7cbcd9914258827699eb2cb6ed6e4…
• git.kernel.org/stable/c/9477db935eb690f697d9bcc4f608927841bc8…
• git.kernel.org/stable/c/ae849d2f48019ff9c104e32bf588ccbfb200e…
• git.kernel.org/stable/c/cc4d0d4251748a8a68026938f4055d2ac47c5…