UNKNOWN NVD
CVE-2026-89833
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid potential deadloop in f2fs_fsync_node_pages() There is potential deadlo
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
References
- https://git.kernel.org/stable/c/161513f53e4ac90fd356433bdf8e31e6adeb92af
- https://git.kernel.org/stable/c/905411f6504876d268ba8dafc8e75367782da4b7
- https://git.kernel.org/stable/c/ce366bfa821ec81dd45bde547ee31e659306cc61
This unknown severity vulnerability was published on 2026-09-16 via NVD.
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