Not yet scoredPublished Dec 8, 2025

CVE-2023-53796f2fs: fix information leak in f2fs_move_inline_dirents()

Updated under an hour ago (Oct 26, 2026, 9:30 PM ET)

Does this affect you?

It affects Linux. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Linux

Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix information leak in f2fs_move_inline_dirents() When converting an inline directory to a regular one, f2fs is leaking uninitialized memory to disk because it doesn't initialize the entire directory block. Fix this by zero-initializing the block. This bug was introduced by commit 4ec17d688d74 ("f2fs: avoid unneeded initializing when converting inline dentry"), which didn't consider the security implications of leaking uninitialized memory to disk. This was found by running xfstest generic/435 on a KMSAN-enabled kernel.

CVSS: Not yet scored
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Deferred
Record last updated: May 11, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	4ec17d688d74b6b7cb10043c57ff4818cde2b0ca builds before 4e3b4b170bd43db1d8a93a6bd0ea434b17cc86f7; from 4ec17d688d74b6b7cb10043c57ff4818cde2b0ca before a6807ef0f3b3d8508d3b07a2e35de8a91820a014; 4ec17d688d74b6b7cb10043c57ff4818cde2b0ca builds before 2bef8314fcf94ddc27e22d03f237c0fafd00de33; 4ec17d688d74b6b7cb10043c57ff4818cde2b0ca builds before 00b5587326625d0fddb2a5f5a3d4acd950102ace; from 4ec17d688d74b6b7cb10043c57ff4818cde2b0ca before 117d4f6687b1f74423b5d398ea95c63b262a8e73; from 4ec17d688d74b6b7cb10043c57ff4818cde2b0ca before f07a8d61b6ea81bb3cbe0638af40f8824d6147fd; from 4ec17d688d74b6b7cb10043c57ff4818cde2b0ca before eebaecef0095bb8f493c03982da75c6e7bae1056; from 4ec17d688d74b6b7cb10043c57ff4818cde2b0ca before 9a5571cff4ffcfc24847df9fd545cc5799ac0ee5	CNA record

References

References

https://git.kernel.org/stable/c/4e3b4b170bd43db1d8a93a6bd0ea434b17cc86f7
https://git.kernel.org/stable/c/a6807ef0f3b3d8508d3b07a2e35de8a91820a014
https://git.kernel.org/stable/c/2bef8314fcf94ddc27e22d03f237c0fafd00de33
https://git.kernel.org/stable/c/00b5587326625d0fddb2a5f5a3d4acd950102ace
https://git.kernel.org/stable/c/117d4f6687b1f74423b5d398ea95c63b262a8e73
https://git.kernel.org/stable/c/f07a8d61b6ea81bb3cbe0638af40f8824d6147fd
https://git.kernel.org/stable/c/eebaecef0095bb8f493c03982da75c6e7bae1056
https://git.kernel.org/stable/c/9a5571cff4ffcfc24847df9fd545cc5799ac0ee5

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.