CVE-2026-89833
N/A
N/A
Summary
In the Linux kernel, the following vulnerability has been resolved:
f2fs: fix to avoid potential deadloop in f2fs_fsync_node_pages()
There is potential deadloop in race condition:
Thread A Thread B
- fsync
- f2fs_do_sync_file
- f2fs_fsync_node_pages
- last_fsync_dnode - folio_get(last_folio) - f2fs_setattr - f2fs_truncate - f2fs_truncate_blocks - f2fs_do_truncate_blocks - f2fs_truncate_inode_blocks - truncate_dnode - truncate_node - invalidate_mapping_pages - folio->mapping = NULL
- is_node_folio alwasy return false
- atomic && !marked is always true, then goto retry
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 608514deba38c8611ad330d6a3c8e2b9a1f68e4b < 161513f53e4ac90fd356433bdf8e31e6adeb92af | affected |
| Linux | Linux | 608514deba38c8611ad330d6a3c8e2b9a1f68e4b < 905411f6504876d268ba8dafc8e75367782da4b7 | affected |
| Linux | Linux | 608514deba38c8611ad330d6a3c8e2b9a1f68e4b < ce366bfa821ec81dd45bde547ee31e659306cc61 | affected |
| Linux | Linux | 4.7 | affected |
| Linux | Linux | 0 < 4.7 | unaffected |
| Linux | Linux | 6.18.51 <= 6.18.* | unaffected |
| Linux | Linux | 7.2.5 <= 7.2.* | unaffected |
| Linux | Linux | 7.3-rc1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/161513f53e4ac90fd356433bdf8e31e6adeb92af
- https://git.kernel.org/stable/c/905411f6504876d268ba8dafc8e75367782da4b7
- https://git.kernel.org/stable/c/ce366bfa821ec81dd45bde547ee31e659306cc61
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