GHSA-FW8R-P3GH-GW7X
Vulnerability from github – Published: 2026-09-16 12:30 – Updated: 2026-09-16 12:30In 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": [],
"aliases": [
"CVE-2026-89833"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-16T11:16:50Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to avoid potential deadloop in f2fs_fsync_node_pages()\n\nThere is potential deadloop in race condition:\n\nThread A\t\t\t\tThread B\n- fsync\n - f2fs_do_sync_file\n - f2fs_fsync_node_pages\n - last_fsync_dnode\n - folio_get(last_folio)\n\t\t\t\t\t- f2fs_setattr\n\t\t\t\t\t - f2fs_truncate\n\t\t\t\t\t - f2fs_truncate_blocks\n\t\t\t\t\t - f2fs_do_truncate_blocks\n\t\t\t\t\t - f2fs_truncate_inode_blocks\n\t\t\t\t\t - truncate_dnode\n\t\t\t\t\t - truncate_node\n\t\t\t\t\t - invalidate_mapping_pages\n\t\t\t\t\t - folio-\u003emapping = NULL\n - is_node_folio alwasy return false\n - atomic \u0026\u0026 !marked is always true,\n then goto retry",
"id": "GHSA-fw8r-p3gh-gw7x",
"modified": "2026-09-16T12:30:38Z",
"published": "2026-09-16T12:30:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89833"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/161513f53e4ac90fd356433bdf8e31e6adeb92af"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/905411f6504876d268ba8dafc8e75367782da4b7"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ce366bfa821ec81dd45bde547ee31e659306cc61"
}
],
"schema_version": "1.4.0",
"severity": []
}
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