PT-2025-13289 · Linux+4 · Linux Kernel+4

Published 2025-03-27 · Updated 2025-05-29 · CVE-2022-49747

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

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

Description The issue is related to an incorrect offset calculation in the Linux kernel, specifically in the erofs/zmap.c file. This miscalculation resulted in the iomap->length being set to 0, triggering a WARN ON in iomap iter done(). The problem was initially reported as a crash by syzbot due to a warning encountered in iomap iter done(), although it was unrelated to erofs.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Weakness Enumeration

CWE-399

Related Identifiers

BDU:2025-06297

CVE-2022-49747

RHSA-2025:6966

RHSA-2025_6966

Affected Products

Astra Linux

Debian

Linux Kernel

Red Hat

Red Os

References · 19

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49747.json · Exploit
• https://git.kernel.org/stable/c/9f31d8c889d9a4e47bfcc6c4537d0c9f89fe582c · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-49747 · Vendor Advisory
• https://git.kernel.org/stable/c/6acd87d50998ef0afafc441613aeaf5a8f5c9eff · Patch
• https://bdu.fstec.ru/vul/2025-06297 · Security Note
• https://git.kernel.org/stable/c/2144859229c1e74f52d3ea067338d314a83a8afb · Patch
• https://cve.org/CVERecord?id=CVE-2022-49747 · Security Note
• https://ubuntu.com/security/CVE-2022-49747 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-49747 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2022-49747 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-49747 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-49747 · Vendor Advisory
• https://redos.red-soft.ru/support/secure/uyazvimosti/support/secure/uyazvimosti/mnozhestvennye-uyazvimosti-kernel-lt-290525 · Note
• https://lore.kernel.org/linux-cve-announce/2025032759-CVE-2022-49747-f361@gregkh/T · Note
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note