CVE-2025-68315

CRITICAL9.8

f2fs: fix to detect potential corrupted nid in free_nid_list

Published Dec 16, 2025

Modified 1 weeks ago

Details

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.

References

WEB

https://git.kernel.org/stable/c/6b9525596a83cd5b7bbc2c7bd5f9ad9cf5ad60fa

WEB

https://git.kernel.org/stable/c/88b2ddb0c4f1dc874d4598e78cc830c64315ed86

WEB

https://git.kernel.org/stable/c/8fc6056dcf79937c46c97fa4996cda65956437a9

WEB

https://git.kernel.org/stable/c/9337ed5e777e1c19854928cba7a8131dd00e611b

WEB

https://git.kernel.org/stable/c/adbcb34f03abb89e681a5907c4c3ce4bf224991d

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2025-68315

CVSS Analysis

CVSS v3.1

9.8

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

HighI:H

Availability

HighA:H

9.8/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Ecosystems

Timeline

PublishedDec 16, 2025

ModifiedAug 5, 2026