CVE-2026-43117
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.40%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- EPSS
- 0.40% probability · 33th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/2e4adfaec97ee053ad1bdfb5036845e66f7e0d8aPatch
- https://git.kernel.org/stable/c/32372781d664a9b03c40343e96c29d0a6139f97dPatch
- https://git.kernel.org/stable/c/4a7bab35fad5251c8cb738161152578cd83b6b9c
- https://git.kernel.org/stable/c/520e8b4bcf872a534a7bf61ccf880047642df296
- https://git.kernel.org/stable/c/a85b46db143fda5869e7d8df8f258ccef5fa1719Patch
- https://git.kernel.org/stable/c/c09a7446aab5773f38d6abb25fce99b8e1dfbc97Patch
- https://git.kernel.org/stable/c/d110d7cdb045715c0b45b0dfd974525bb38f653dPatch
- https://git.kernel.org/stable/c/e252db8ca2a01f82d472091f35d549b313278636
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.