CVEvulnerability
CVE-2026-63954
7.8 HIGH
Official page ↗
- Status
- Undergoing Analysis
- Published
- 2026-07-19
- Last modified
- 2026-07-27
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
In the Linux kernel, the following vulnerability has been resolved:
hpfs: fix a crash if hpfs_map_dnode_bitmap fails
If hpfs_map_dnode_bitmap fails, the code would call hpfs_brelse4 on
uninitialized quad buffer head, causing a crash.
References
- https://git.kernel.org/stable/c/010b08084000ef018f1a8de5197087f3b91d8cfe git.kernel.org
- https://git.kernel.org/stable/c/0886c6f257fe3663f80218aa1919b0f3f21bf22c git.kernel.org
- https://git.kernel.org/stable/c/1648a3c7f4e18f46a4881920133fc4f2494185a0 git.kernel.org
- https://git.kernel.org/stable/c/1d73a533760bc5abb83b3cc759133596f7bb708f git.kernel.org
- https://git.kernel.org/stable/c/4f37bb30b57d6d403d02673074555bd3c3602bef git.kernel.org
- https://git.kernel.org/stable/c/7c58c55a2a16f7274772507bd1637be609351b4f git.kernel.org
- https://git.kernel.org/stable/c/974820a59efde7c1a7e1260bcfe9bb81f833cc9f git.kernel.org
- https://git.kernel.org/stable/c/d98d8562b3284b5a5c8eb67e71b794508e46e288 git.kernel.org