PT-2025-8368 · Linux+3 · Linux Kernel+3

Jay Zhou + 1 · Published 2022-05-11 · Updated 2025-04-16 · CVE-2022-49434

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 A deadlock issue has been identified in the Linux kernel, specifically between the pci dev lock() function and the sriov numvfs store() path. The sriov numvfs store() path acquires the device lock before the config space access lock, while pci dev lock() previously acquired the config space access lock before the device lock. This could lead to a deadlock if the operations occur in a specific sequence. The issue has been resolved by reversing the order in pci dev lock() to acquire the device lock before the config space access lock.

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

Exploit

Improper Resource Release

Improper Locking

Weakness Enumeration

CWE-404

CWE-833

CWE-667

Related Identifiers

BDU:2026-02569

CVE-2022-49434

RHSA-2023:2458

RHSA-2023_2458

SUSE-SU-2025:1027-1

SUSE-SU-2025:1176-1

SUSE-SU-2025:1183-1

SUSE-SU-2025:1241-1

SUSE-SU-2025:1293-1

SUSE-SU-2025_1027-1

SUSE-SU-2025_1241-1

SUSE-SU-2025_1293-1

Affected Products

Astra Linux

Linux Kernel

Red Hat

Suse

References · 1494

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49434.json · Exploit
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-49434 · Vendor Advisory
• https://git.kernel.org/stable/c/c3c6dc1853b8bf3c718f96fd8480a6eb09ba4831 · Patch
• https://git.kernel.org/stable/c/2cdd5284035322795b0964f899eefba254cfe483 · Patch
• https://bdu.fstec.ru/vul/2026-02569 · Security Note
• https://git.kernel.org/stable/c/ea047f51172aa68841adef7f52d375002438b8f0 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:1183-1 · Vendor Advisory
• https://git.kernel.org/stable/c/eff3587b9c01439b738298475e555c028ac9f55e · Patch
• https://git.kernel.org/stable/c/aed6d4d519210c28817948f34c53b6e058e0456c · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-49434 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1293-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1176-1 · Vendor Advisory
• https://git.kernel.org/stable/c/da9792920ab525b8a932aa9aeee34529ad7b83f7 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-49434 · Security Note
• https://git.kernel.org/stable/c/c9a81f9ed6ae3554621d6a50220b1bc74b67d81e · Patch