PT-2025-26008 · Ext4+2 · Ext4+2

Published 2022-08-02 · Updated 2025-11-18 · CVE-2022-50082

Positive Technologies (AI Summary)

CVSS v3.1

7.0

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A race condition between bmap and write operations in the ext4 filesystem can cause a warning in ext4 iomap begin. This issue occurs when the bmap and write operations are executed concurrently, leading to a potential problem. The estimated number of potentially affected devices worldwide is not available. There is no information about real-world incidents where this issue was exploited. The issue can be triggered by the ext4 iomap begin function, specifically when the WARN ON ONCE(ext4 has inline data(inode)) condition is met.

Recommendations To resolve this issue, hold the inode lock in ext4 bmap. As a temporary workaround, consider restricting access to the ext4 iomap begin function until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Race Condition

Buffer Overflow

Weakness Enumeration

CWE-362

CWE-120

Related Identifiers

BDU:2026-01252

CVE-2022-50082

Affected Products

Astra Linux

Linux Kernel

Ext4

References · 23

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50082.json · Exploit
• https://security-tracker.debian.org/tracker/CVE-2022-50082 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-50082 · Security Note
• https://git.kernel.org/stable/c/30dfb75e1f8645404a536c74d468d498adcd4e74 · Patch
• https://git.kernel.org/stable/c/51ae846cff568c8c29921b1b28eb2dfbcd4ac12d · Patch
• https://git.kernel.org/stable/c/e1682c7171a6c0ff576fe8116b8cba5b8f538b94 · Patch
• https://git.kernel.org/stable/c/a9fe6d1e3d343d7309f501b1f48020ce7127221f · Patch
• https://ubuntu.com/security/CVE-2022-50082 · Vendor Advisory
• https://git.kernel.org/stable/c/fa6482f374fda29a71ad44d76d35b4842d43cda4 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50082 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-50082 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-50082 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-01252 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-50082 · Security Note
• https://access.redhat.com/security/cve/cve-2022-50082 · Note