CVE-2022-50148

Summary

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)

Affected Software

VendorProductVersion RangeStatus
LinuxLinux393c3714081a53795bbff0e985d24146def6f57f < b871986d9d3071f5082664ac274d93f08db257cdaffected
LinuxLinux393c3714081a53795bbff0e985d24146def6f57f < 4a9f35b8729c5bf13ea671c908c17ed74c48fc50affected
LinuxLinux393c3714081a53795bbff0e985d24146def6f57f < 72b5d5aef246a0387cefa23121dd90901c7a691aaffected
LinuxLinux5.17affected
LinuxLinux0 < 5.17unaffected
LinuxLinux5.18.18 <= 5.18.*unaffected
LinuxLinux5.19.2 <= 5.19.*unaffected
LinuxLinux6.0 <= *unaffected

Weaknesses

References