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CVE-2026-43117

btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file()

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.258, 5.15.209, 6.1.175, 6.6.136, 6.12.83, and 2 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: partial

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: partial

  3. Record last updated

Affected versions

  • Linux Linux

    From bc074524e123ded281cde25ebc5661910f9679e3 · fixed in 4a7bab35fad5251c8cb738161152578cd83b6b9c; From bc074524e123ded281cde25ebc5661910f9679e3 · fixed in 520e8b4bcf872a534a7bf61ccf880047642df296; From bc074524e123ded281cde25ebc5661910f9679e3 · fixed in e252db8ca2a01f82d472091f35d549b313278636; From bc074524e123ded281cde25ebc5661910f9679e3 · fixed in c09a7446aab5773f38d6abb25fce99b8e1dfbc97; From bc074524e123ded281cde25ebc5661910f9679e3 · fixed in 32372781d664a9b03c40343e96c29d0a6139f97d; From bc074524e123ded281cde25ebc5661910f9679e3 · fixed in 2e4adfaec97ee053ad1bdfb5036845e66f7e0d8a; From bc074524e123ded281cde25ebc5661910f9679e3 · fixed in d110d7cdb045715c0b45b0dfd974525bb38f653d; From bc074524e123ded281cde25ebc5661910f9679e3 · fixed in a85b46db143fda5869e7d8df8f258ccef5fa1719

  • Linux Linux

    4.8

  • KernelLinux

    From 4.8.0 · fixed in 5.10.258; From 5.11.0 · fixed in 5.15.209; From 5.16.0 · fixed in 6.1.175; From 6.2.0 · fixed in 6.6.136; From 6.7.0 · fixed in 6.12.83; From 6.13.0 · fixed in 6.18.24; From 6.19.0 · fixed in 6.19.14

References 8

git.kernel.org