01 Record

CVE-2026-31473

media: mc, v4l2: serialize REINIT and REQBUFS with req_queue_mutex

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

media: mc, v4l2: serialize REINIT and REQBUFS with req_queue_mutex

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

0.09% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 0.7% 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 2026-10-19.

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

2026-04-22 13:54Z6 MO AGO

Last updated

2026-10-19 18:35Z9 DAYS AGO

Reserved

2026-03-09

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-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class
CWE-416Use After FreeVariant

Data version

5.2

Document digest

f48ce127dbfedd26a7065bf57f4537703b66258ae5c4e96708b0ef2e47d9e4d5

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux6093d3002eabd7c2913d97f1d1f4ce34b072acf9 to < 331242998a7ade5c2f65e14988901614629f3db5, 6093d3002eabd7c2913d97f1d1f4ce34b072acf9 to < 2c685e99efb3b3bd2b78699fba6b1cf321975db0, 6093d3002eabd7c2913d97f1d1f4ce34b072acf9 to < 585fd9a2063dacce8b2820f675ef23d5d17434c5, 6093d3002eabd7c2913d97f1d1f4ce34b072acf9 to < 1a0d9083c24fbd5d22f7100f09d11e4d696a5f01, 6093d3002eabd7c2913d97f1d1f4ce34b072acf9 to < d8549a453d5bdc0a71de66ad47a1106703406a56, 6093d3002eabd7c2913d97f1d1f4ce34b072acf9 to < 72b9e81e0203f03c40f3adb457f55bd4c8eb112d, 6093d3002eabd7c2913d97f1d1f4ce34b072acf9 to < cf2023e84f0888f96f4b65dc0804e7f3651969c1, 6093d3002eabd7c2913d97f1d1f4ce34b072acf9 to < bef4f4a88b73e4cc550d25f665b8a9952af22773, 4.20—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/331242998a7ade5c2f65e14988901614629f3db5
git.kernel.orghttps://git.kernel.org/stable/c/2c685e99efb3b3bd2b78699fba6b1cf321975db0
git.kernel.orghttps://git.kernel.org/stable/c/585fd9a2063dacce8b2820f675ef23d5d17434c5
git.kernel.orghttps://git.kernel.org/stable/c/1a0d9083c24fbd5d22f7100f09d11e4d696a5f01
git.kernel.orghttps://git.kernel.org/stable/c/d8549a453d5bdc0a71de66ad47a1106703406a56
git.kernel.orghttps://git.kernel.org/stable/c/72b9e81e0203f03c40f3adb457f55bd4c8eb112d
git.kernel.orghttps://git.kernel.org/stable/c/cf2023e84f0888f96f4b65dc0804e7f3651969c1
git.kernel.orghttps://git.kernel.org/stable/c/bef4f4a88b73e4cc550d25f665b8a9952af22773

07 Fixed in

Debian 12

linux
Fixed in 6.1.170-1

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

Debian 13

linux
Fixed in 6.12.85-1

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

Debian 14

linux
Fixed in 6.19.11-1

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