01 Record

CVE-2022-49720

block: Fix handling of offline queues in blk_mq_alloc_request_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

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02 Description

block: Fix handling of offline queues in blk_mq_alloc_request_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

0.30% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 22.2% 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

Modified. 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 02:24Z1 YR AGO

Last updated

2026-05-11 19:05Z3 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-129Improper Validation of Array IndexVariant

Data version

5.2

Document digest

bfe4d5882843a76bf4982f31e8ec7b5e766546a28cd0d80c904433439cecd5a6

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux20e4d813931961fe26d26a1e98b3aba6ec00b130 to < 7fa28a7c3d74933a4fc22d341b60927952f31c19, 20e4d813931961fe26d26a1e98b3aba6ec00b130 to < b5e65ef044d627effdc2599040b6d204e003f955, 20e4d813931961fe26d26a1e98b3aba6ec00b130 to < b202a0bd2580ee5b0453772c46d464152fafff73, 20e4d813931961fe26d26a1e98b3aba6ec00b130 to < 14dc7a18abbe4176f5626c13c333670da8e06aa1, 4.16—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/7fa28a7c3d74933a4fc22d341b60927952f31c19
git.kernel.orghttps://git.kernel.org/stable/c/b5e65ef044d627effdc2599040b6d204e003f955
git.kernel.orghttps://git.kernel.org/stable/c/b202a0bd2580ee5b0453772c46d464152fafff73
git.kernel.orghttps://git.kernel.org/stable/c/14dc7a18abbe4176f5626c13c333670da8e06aa1

01 Record index

CVE-2022-49720

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2022-49720

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References