nvmet-auth: assign dh_key to NULL after kfree_sensitive
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.1epss 0.3%
exploitation probability
0.3%top 83% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
nvmet-auth: assign dh_key to NULL after kfree_sensitive
ctrl->dh_key might be used across multiple calls to nvmet_setup_dhgroup()
for the same controller. So it's better to nullify it after release on
error path in order to avoid double free later in nvmet_destroy_auth().
Found by Linux Verification Center (linuxtesting.org) with Svace.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/c60af16e1d6cc2237d58336546d6adfc067b6b8fhttps://git.kernel.org/stable/c/c94e965f766321641ec38e4eece9ce8884543244https://git.kernel.org/stable/c/d2f551b1f72b4c508ab9298419f6feadc3b5d791https://git.kernel.org/stable/c/e61bd51e44409495d75847e9230736593e4c8710https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html