PT-2025-8653 · Linux+2 · Linux Kernel+2

Bart Van Assche · Published 2022-06-15 · Updated 2025-04-15 · CVE-2022-49720

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/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 vulnerability in the Linux kernel has been resolved, related to the handling of offline queues in the blk mq alloc request hctx() function. This issue could trigger an array-index-out-of-bounds error, as indicated by the UBSAN (Undefined Behavior Sanitizer) report, showing an index of 512 being out of range for a 'long unsigned int [512]' type. The error occurs in the block/blk-mq.h file at line 135, column 9. The call trace suggests that this issue is related to the NVMe (Non-Volatile Memory Express) subsystem, specifically involving functions like nvme submit sync cmd() and nvmf connect io queue().

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

Exploit

Improper Validation of Array Index

Weakness Enumeration

CWE-129

Related Identifiers

BDU:2025-10251

CVE-2022-49720

OESA-2025-1336

OPENSUSE-SU-2025_1263-1

SUSE-SU-2025:1027-1

SUSE-SU-2025:1176-1

SUSE-SU-2025:1183-1

SUSE-SU-2025:1194-1

SUSE-SU-2025:1241-1

SUSE-SU-2025:1263-1

SUSE-SU-2025_1027-1

SUSE-SU-2025_1241-1

SUSE-SU-2025_1263-1

Affected Products

Astra Linux

Linux Kernel

Suse

References · 1371

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49720.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-47659 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-49678 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-49335 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-49508 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:1183-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-49720 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-49727 · Security Note
• https://osv.dev/vulnerability/CVE-2022-49720 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-49053 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2022-49720 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1263-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-49292 · Security Note
• https://git.kernel.org/stable/c/14dc7a18abbe4176f5626c13c333670da8e06aa1 · Patch
• https://osv.dev/vulnerability/OESA-2025-1336 · Vendor Advisory