CVE-2026-63954
highIn 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…
Vendor / product: Linux — linux kernel
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.
CVSS
7.8
7.8 (CVSS v3.1)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
Timeline (UTC)
Published: 2026-07-19 16:17
Modified: 2026-10-30 14:32
NVD status: Analyzed
Last synced 1 day ago
Verified against the source API 2026-10-30 14:40 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
linux / linux_kernel ≥2.6.12.1 <5.10.259, ≥5.11 <5.15.210, ≥5.16 <6.1.176, ≥6.2 <6.6.143, ≥6.7 <6.12.93, ≥6.13 <6.18.35
Weakness classification (CWE)
NVD-CWE-noinfo
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Patch / mitigation: https://git.kernel.org/stable/c/010b08084000ef018f1a8de5197087f3b91d8cfe
Patch / mitigation: https://git.kernel.org/stable/c/0886c6f257fe3663f80218aa1919b0f3f21bf22c
Patch / mitigation: https://git.kernel.org/stable/c/1648a3c7f4e18f46a4881920133fc4f2494185a0
Patch / mitigation: https://git.kernel.org/stable/c/1d73a533760bc5abb83b3cc759133596f7bb708f
Patch / mitigation: https://git.kernel.org/stable/c/4f37bb30b57d6d403d02673074555bd3c3602bef
Patch / mitigation: https://git.kernel.org/stable/c/7c58c55a2a16f7274772507bd1637be609351b4f
Patch / mitigation: https://git.kernel.org/stable/c/974820a59efde7c1a7e1260bcfe9bb81f833cc9f
Patch / mitigation: https://git.kernel.org/stable/c/d98d8562b3284b5a5c8eb67e71b794508e46e288
References
- https://git.kernel.org/stable/c/010b08084000ef018f1a8de5197087f3b91d8cfe 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/0886c6f257fe3663f80218aa1919b0f3f21bf22c 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/1648a3c7f4e18f46a4881920133fc4f2494185a0 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/1d73a533760bc5abb83b3cc759133596f7bb708f 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/4f37bb30b57d6d403d02673074555bd3c3602bef 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/7c58c55a2a16f7274772507bd1637be609351b4f 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/974820a59efde7c1a7e1260bcfe9bb81f833cc9f 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/d98d8562b3284b5a5c8eb67e71b794508e46e288 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Data sources
NVD CVE API 2.0 — fetched 2026-10-30 14:40 UTC · record ↗