Bug 2396524 (CVE-2022-50404) - CVE-2022-50404 kernel: fbdev: fbcon: release buffer when fbcon_do_set_font() failed
Summary: CVE-2022-50404 kernel: fbdev: fbcon: release buffer when fbcon_do_set_font() ...
Keywords:
Status: NEW
Alias: CVE-2022-50404
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-09-18 17:03 UTC by OSIDB Bzimport
Modified: 2025-09-29 03:30 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2025-09-18 17:03:16 UTC 
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().
Comment 1 Keith Grant 2025-09-18 19:00:05 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025091852-CVE-2022-50404-5db4@gregkh/T
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