Bug 2373637 (CVE-2022-50148) - CVE-2022-50148 kernel: kernfs: fix potential NULL dereference in __kernfs_remove
Summary: CVE-2022-50148 kernel: kernfs: fix potential NULL dereference in __kernfs_remove
Keywords:
Status: NEW
Alias: CVE-2022-50148
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: 2025-06-18 12:11 UTC by OSIDB Bzimport
Modified: 2025-06-19 00:03 UTC (History)
4 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2025-06-18 12:11:42 UTC 
In the Linux kernel, the following vulnerability has been resolved:

kernfs: fix potential NULL dereference in __kernfs_remove

When lockdep is enabled, lockdep_assert_held_write would
cause potential NULL pointer dereference.

Fix the following smatch warnings:

fs/kernfs/dir.c:1353 __kernfs_remove() warn: variable dereferenced before check 'kn' (see line 1346)
Comment 1 Avinash Hanwate 2025-06-18 23:53:36 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025061821-CVE-2022-50148-371d@gregkh/T
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