Vulnerability Description
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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.8, < 6.6.136 |
References
- 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
FAQ
What is CVE-2026-43117?
CVE-2026-43117 is a vulnerability with a CVSS score of 9.1 (CRITICAL). 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...
How severe is CVE-2026-43117?
CVE-2026-43117 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-43117?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.