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CVE-2026-43117

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

CVSS 9.1 CRITICALEPSS 0.4%
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/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Produtos afetados
Linux · Linux

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Referências
https://git.kernel.org/stable/c/2e4adfaec97ee053ad1bdfb5036845e66f7e0d8ahttps://git.kernel.org/stable/c/32372781d664a9b03c40343e96c29d0a6139f97dhttps://git.kernel.org/stable/c/4a7bab35fad5251c8cb738161152578cd83b6b9chttps://git.kernel.org/stable/c/520e8b4bcf872a534a7bf61ccf880047642df296https://git.kernel.org/stable/c/a85b46db143fda5869e7d8df8f258ccef5fa1719https://git.kernel.org/stable/c/c09a7446aab5773f38d6abb25fce99b8e1dfbc97https://git.kernel.org/stable/c/d110d7cdb045715c0b45b0dfd974525bb38f653dhttps://git.kernel.org/stable/c/e252db8ca2a01f82d472091f35d549b313278636