Description
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to detect potential corrupted nid in free_nid_list As reported, on-disk footer.ino and footer.nid is the same and out-of-range, let's add sanity check on f2fs_alloc_nid() to detect any potential corruption in free_nid_list.
References5
- git.kernel.org/stable/c/6b9525596a83cd5b7bbc2c7bd5f9ad9cf5ad60fa
- git.kernel.org/stable/c/88b2ddb0c4f1dc874d4598e78cc830c64315ed86
- git.kernel.org/stable/c/8fc6056dcf79937c46c97fa4996cda65956437a9
- git.kernel.org/stable/c/9337ed5e777e1c19854928cba7a8131dd00e611b
- git.kernel.org/stable/c/adbcb34f03abb89e681a5907c4c3ce4bf224991d
Metrics
- CVSS 3.1
-
9.8
CRITICAL
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 38 · as of 11 November 2026
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.