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Vulnerability record · CVE-2022-24448 · published 4 February 2022

CVE-2022-24448: Linux kernel use of uninitialized resource vulnerability

Linux · Linux Kernel

An issue was discovered in fs/nfs/dir.c in the Linux kernel before 5.16.5. If an application sets the O_DIRECTORY flag, and tries to open a regular file, nfs_atomic_open() performs a regular lookup. If a regular file is found, ENOTDIR should occur, but the server instead returns uninitialized data in the file descriptor.

3.3 CVSS 3.1 Low EPSS 0.40% · top 68.7% CWE-755 · CWE-755CWE-908 · Use of uninitialized resource
3.3CVSS 3.1 base score, v2 1.9
0.40%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
20References
17 Jun 2026Last modified by NVD

Description

An issue was discovered in fs/nfs/dir.c in the Linux kernel before 5.16.5. If an application sets the O_DIRECTORY flag, and tries to open a regular file, nfs_atomic_open() performs a regular lookup. If a regular file is found, ENOTDIR should occur, but the server instead returns uninitialized data in the file descriptor.

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

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.5 Mailing ListPatchRelease NotesVendor Advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ac795161c93699d600db16c1a8cc23a65a1eceaf Mailing ListPatchVendor Advisory
https://github.com/torvalds/linux/commit/ab0fc21bc7105b54bafd85bd8b82742f9e68898a PatchThird Party Advisory
https://github.com/torvalds/linux/commit/ac795161c93699d600db16c1a8cc23a65a1eceaf PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html Mailing ListThird Party Advisory
https://lore.kernel.org/all/67d6a536-9027-1928-99b6-af512a36cd1a%40huawei.com/T/
https://www.debian.org/security/2022/dsa-5092 Third Party Advisory
https://www.debian.org/security/2022/dsa-5096 Third Party Advisory
https://www.spinics.net/lists/stable/msg531976.html Mailing ListPatchThird Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.5 Mailing ListPatchRelease NotesVendor Advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ac795161c93699d600db16c1a8cc23a65a1eceaf Mailing ListPatchVendor Advisory
https://github.com/torvalds/linux/commit/ab0fc21bc7105b54bafd85bd8b82742f9e68898a PatchThird Party Advisory
https://github.com/torvalds/linux/commit/ac795161c93699d600db16c1a8cc23a65a1eceaf PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html Mailing ListThird Party Advisory
https://lore.kernel.org/all/67d6a536-9027-1928-99b6-af512a36cd1a%40huawei.com/T/
https://www.debian.org/security/2022/dsa-5092 Third Party Advisory
https://www.debian.org/security/2022/dsa-5096 Third Party Advisory
https://www.spinics.net/lists/stable/msg531976.html Mailing ListPatchThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2022-24448), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.