01 Record

CVE-2023-52486

drm: Don't unref the same fb many times by mistake due to deadlock handling

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

drm: Don't unref the same fb many times by mistake due to deadlock handling

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 ImpactpartialSuccessful exploitation gives limited 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

0.23% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 13.7% of scored records. A rank, not a probability.

NVD base score

5.5 (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:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-08-04.

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

2024-02-29 15:52Z2 YR AGO

Last updated

2026-08-05 09:10Z1 MO AGO

Reserved

2024-02-20

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-667Improper LockingClass
CWE-833DeadlockBase

Data version

5.2

Document digest

ffd4cf07fd662642ad24ae443c1f72126f69a3fe7512ce8c10b0c46c7b1ac740

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux29dc0d1de18239cf3ef8bab578b8321ed340d81c to < 376e21a9e4c2c63ee5d8d3aa74be5082c3882229, 29dc0d1de18239cf3ef8bab578b8321ed340d81c to < 9dd334a8245011ace45e53298175c7b659edb3e7, 29dc0d1de18239cf3ef8bab578b8321ed340d81c to < f55261469be87c55df13db76dc945f6bcd825105, 29dc0d1de18239cf3ef8bab578b8321ed340d81c to < b4af63da9d94986c529d74499fdfe44289acd551, 29dc0d1de18239cf3ef8bab578b8321ed340d81c to < 62f2e79cf9f4f47cc9dea9cebdf58d9f7b5695e0, 29dc0d1de18239cf3ef8bab578b8321ed340d81c to < d7afdf360f4ac142832b098b4de974e867cc063c, 29dc0d1de18239cf3ef8bab578b8321ed340d81c to < bfd0feb1b109cb63b87fdcd00122603787c75a1a, 29dc0d1de18239cf3ef8bab578b8321ed340d81c to < cb4daf271302d71a6b9a7c01bd0b6d76febd8f0c, 4.12—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/376e21a9e4c2c63ee5d8d3aa74be5082c3882229
git.kernel.orghttps://git.kernel.org/stable/c/9dd334a8245011ace45e53298175c7b659edb3e7
git.kernel.orghttps://git.kernel.org/stable/c/f55261469be87c55df13db76dc945f6bcd825105
git.kernel.orghttps://git.kernel.org/stable/c/b4af63da9d94986c529d74499fdfe44289acd551
git.kernel.orghttps://git.kernel.org/stable/c/62f2e79cf9f4f47cc9dea9cebdf58d9f7b5695e0
git.kernel.orghttps://git.kernel.org/stable/c/d7afdf360f4ac142832b098b4de974e867cc063c
git.kernel.orghttps://git.kernel.org/stable/c/bfd0feb1b109cb63b87fdcd00122603787c75a1a
git.kernel.orghttps://git.kernel.org/stable/c/cb4daf271302d71a6b9a7c01bd0b6d76febd8f0c
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2024/06/msg00020.html

01 Record index

CVE-2023-52486

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2023-52486

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References