01 Record

CVE-2022-49377

blk-mq: don't touch ->tagset in blk_mq_get_sq_hctx

HighPUBLISHEDCNA: Linux

CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

View raw JSON

02 Description

blk-mq: don't touch ->tagset in blk_mq_get_sq_hctx

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.28% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 21.1% of scored records. A rank, not a probability.

NVD base score

7.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2025-02-26 02:11Z1 YR AGO

Last updated

2026-08-05 08:54Z2 MO AGO

Reserved

2025-02-26

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

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

Weaknesses

CWE-416Use After FreeVariant

Data version

5.2

Document digest

7c55e4396fafca2581ef2570799f16873bce8948ba0869626139e1d34d60b140

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxb6e68ee82585f2ee890b0a897a6aacbf49a467bb to < 460aa288c5cd0544dcf933a2f0ad0e8c6d2d35ff, b6e68ee82585f2ee890b0a897a6aacbf49a467bb to < b140bac470b4f707cda59c7266214246238661df, b6e68ee82585f2ee890b0a897a6aacbf49a467bb to < 70fdd922c7bf8949f8df109cf2635dff64c90392, b6e68ee82585f2ee890b0a897a6aacbf49a467bb to < 5d05426e2d5fd7df8afc866b78c36b37b00188b7, 5.12—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/460aa288c5cd0544dcf933a2f0ad0e8c6d2d35ff
git.kernel.orghttps://git.kernel.org/stable/c/b140bac470b4f707cda59c7266214246238661df
git.kernel.orghttps://git.kernel.org/stable/c/70fdd922c7bf8949f8df109cf2635dff64c90392
git.kernel.orghttps://git.kernel.org/stable/c/5d05426e2d5fd7df8afc866b78c36b37b00188b7

07 Fixed in

Debian 12

linux
Fixed in 5.18.5-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 5.18.5-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 5.18.5-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.