CVE-2023-53536

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The blk crypto evict key() function in the Linux kernel could lead to a use-after-free condition in blk crypto reprogram all keys() if the key is still in use or if the keyslot evict operation fails. This occurs because blk crypto evict key() may return without unlinking the key from the keyslot management structures, while the caller proceeds to free the key regardless of the return value. The fix involves ensuring that blk crypto evict key() always unlinks the key from the keyslot management structures, even on failure.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.