CVE-2022-50404mediumCWE-401

fbdev: fbcon: release buffer when fbcon_do_set_font() failed

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 5.5epss 0.2%

exploitation probability

0.2%top 96% of all CVEs

observed exploitation

nono source reports it

In the Linux kernel, the following vulnerability has been resolved: fbdev: fbcon: release buffer when fbcon_do_set_font() failed syzbot is reporting memory leak at fbcon_do_set_font() [1], for commit a5a923038d70 ("fbdev: fbcon: Properly revert changes when vc_resize() failed") missed that the buffer might be newly allocated by fbcon_set_font().

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

Affected products

Linux · Linux

References

https://git.kernel.org/stable/c/06926607b9fddf7ce8017493899ce6eb7e79a123 https://git.kernel.org/stable/c/3c3bfb8586f848317ceba5d777e11204ba3e5758 https://git.kernel.org/stable/c/5a341810a22e51c3a7a108f7896b5fd58d44d127 https://git.kernel.org/stable/c/88ec6d11052da527eb9268831e7a9bc5bbad02f6 https://git.kernel.org/stable/c/a609bfc1e644a8467cb31945ed1488374ebdc013