Home/CVE/In the Linux kernel, the following vulnerability has been resolved: btrfs: tracepoints: get correct superblock from den
CVE

CVE-2026-43117

In the Linux kernel, the following vulnerability has been resolved: btrfs: tracepoints: get correct superblock from den

In the Linux kernel, the following vulnerability has been resolved: btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file() If overlay is used on top of btrfs, dentry-d_sb translates to overlay's super block and fsid assignment will lead to a crash. Use file_inode(file)-i_sb to always get btrfs_sb.

CRITICAL · CVSS 9.1 EPSS 0.0007
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
▤

Affected Products & Versions

5
linux kernel>= 4.8 and < 6.6.136
linux kernel>= 6.7 and < 6.12.83
linux kernel>= 6.13 and < 6.18.24
linux kernel>= 6.19 and < 6.19.14
linux kernelall versions
▣

Scoring & Timeline

9.1
CRITICAL · CVSS v3.1 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD06 May 2026 · 10:16 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://git.kernel.org/stable/c/2e4adfaec97ee053ad1bdfb5036845e66f7e0d8aPatch
https://git.kernel.org/stable/c/32372781d664a9b03c40343e96c29d0a6139f97dPatch
https://git.kernel.org/stable/c/a85b46db143fda5869e7d8df8f258ccef5fa1719Patch
https://git.kernel.org/stable/c/c09a7446aab5773f38d6abb25fce99b8e1dfbc97Patch
https://git.kernel.org/stable/c/d110d7cdb045715c0b45b0dfd974525bb38f653dPatch
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