CVE-2023-54271 — NULL Pointer Dereference in Linux
Severity
5.5MEDIUM
No vectorEPSS
0.0%
top 93.24%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedDec 30
Description
In the Linux kernel, the following vulnerability has been resolved:
blk-cgroup: Fix NULL deref caused by blkg_policy_data being installed before init
blk-iocost sometimes causes the following crash:
BUG: kernel NULL pointer dereference, address: 00000000000000e0
...
RIP: 0010:_raw_spin_lock+0x17/0x30
Code: be 01 02 00 00 e8 79 38 39 ff 31 d2 89 d0 5d c3 0f 1f 00 0f 1f 44 00 00 55 48 89 e5 65 ff 05 48 d0 34 7e b9 01 00 00 00 31 c0 0f b1 0f 75 02 5d c3 89 c6 e8 ea 04 00 00 5d c3 0f 1f 84 00 00
…
Affected Packages4 packages
▶CVEListV5linux/linux9d179b865449b351ad5cb76dbea480c9170d4a27 — e39ef7880d1057b2ebcdb013405f4d84a257db23+3
🔴Vulnerability Details
3GHSA▶
GHSA-jw53-vfm2-vf66: In the Linux kernel, the following vulnerability has been resolved:
blk-cgroup: Fix NULL deref caused by blkg_policy_data being installed before init↗2025-12-30
OSV▶
CVE-2023-54271: In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: Fix NULL deref caused by blkg_policy_data being installed before init↗2025-12-30