5.5

CVE-2023-53519: media: v4l2-mem2mem: add lock to protect parameter num_rdy

Analyzed
AliasesUBUNTU-CVE-2023-53519DEBIAN-CVE-2023-53519
Published 01-10-2025Last modified 11-05-2026

Vulnerability summary

CVE-2023-53519 is a medium (CVSS 5.5) Improper Locking vulnerability in linux. EPSS estimates a 0.12% chance of exploitation in the next 30 days, higher than 1.6% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.12%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 16 · Related 15
RHSA-2025:6966SUSE-SU-2025:03600-1SUSE-SU-2025:03615-1SUSE-SU-2025:03628-1SUSE-SU-2025:03634-1SUSE-SU-2025:20851-1

Timeline

  1. 01-10-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: media: v4l2-mem2mem: add lock to protect parameter num_rdy Getting below error when using KCSAN to check the driver. Adding lock to protect parameter num_rdy when getting the value with function: v4l2_m2m_num_src_bufs_ready/v4l2_m2m_num_dst_bufs_ready. kworker/u16:3: [name:report&]BUG: KCSAN: data-race in v4l2_m2m_buf_queue kworker/u16:3: [name:report&] kworker/u16:3: [name:report&]read-write to 0xffffff8105f35b94 of 1 bytes by task 20865 on cpu 7: kworker/u16:3:  v4l2_m2m_buf_queue+0xd8/0x10c

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.12%

Chance of exploitation in the next 30 days

Percentile

2%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.11% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu124 products
  • linuxAll versions (No fix recorded) | < 5.4.0-169.187 | < 5.15.0-91.101
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1116.126 | < 5.15.0-1051.56
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 908a0d7c588ef87e5cf0a26805e6002a78ac9d13, < 690dd4780b3f4d755e4e7883e8c3d1b5052f6bf2 | ≥ 908a0d7c588ef87e5cf0a26805e6002a78ac9d13, < 7fc7f87725805197388ba749a1801df33000fa50 | ≥ 908a0d7c588ef87e5cf0a26805e6002a78ac9d13, < ef009fe2010ea2a3a7045ecb72729cf366e0967b | ≥ 908a0d7c588ef87e5cf0a26805e6002a78ac9d13, < e52de26cb37459b16213438a2c82feb155dd3bbd | ≥ 908a0d7c588ef87e5cf0a26805e6002a78ac9d13, < 1676748aa29099fc0abd71e0fb092e76e835f25c | ≥ 908a0d7c588ef87e5cf0a26805e6002a78ac9d13, < c71aa5f1cf961264690f2560503ea396b6e3c680 | ≥ 908a0d7c588ef87e5cf0a26805e6002a78ac9d13, < e01ea1c4191ee08440b5f86db98dff695e9cedf9 | ≥ 908a0d7c588ef87e5cf0a26805e6002a78ac9d13, < 56b5c3e67b0f9af3f45cf393be048ee8d8a92694 | 2.6.39
  • linux_kernel≥ 2.6.39, < 4.14.324 | ≥ 4.15, < 4.19.293 | ≥ 4.20, < 5.4.255 | ≥ 5.5, < 5.10.192 | ≥ 5.11, < 5.15.128 | ≥ 5.16, < 6.1.47 | ≥ 6.2, < 6.4.12
Debian1 product
  • linux< 6.1.52-1 | < 6.4.13-1

3 vendors · 127 products

References

12 links
Show all 12 references