HarborGuard / CVE
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CRITICALCVE-2026-43117Published Modified CNA Linux

CVE-2026-43117: btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file()

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.

Metrics

CVSS v3.1
9.1
Severity
CRITICAL
Fixed in
0
Affected Products
2

Fix available

02e4adfaec97ee053ad1bdfb5036845e66f7e0d8a32372781d664a9b03c40343e96c29d0a6139f97d6.6.1366.12.836.18.246.19.147.0a85b46db143fda5869e7d8df8f258ccef5fa1719c09a7446aab5773f38d6abb25fce99b8e1dfbc97d110d7cdb045715c0b45b0dfd974525bb38f653d
Affected packages
  • Linux / Linux
    < c09a7446aab5773f38d6abb25fce99b8e1dfbc97 (from bc074524e123ded281cde25ebc5661910f9679e3) · < 32372781d664a9b03c40343e96c29d0a6139f97d (from bc074524e123ded281cde25ebc5661910f9679e3) · < 2e4adfaec97ee053ad1bdfb5036845e66f7e0d8a (from bc074524e123ded281cde25ebc5661910f9679e3) · < d110d7cdb045715c0b45b0dfd974525bb38f653d (from bc074524e123ded281cde25ebc5661910f9679e3) · < a85b46db143fda5869e7d8df8f258ccef5fa1719 (from bc074524e123ded281cde25ebc5661910f9679e3)
  • Linux / Linux
    4.8
    Fixed in 0, 6.6.136, 6.12.83, 6.18.24, 6.19.14, 7.0
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
References