CVE-2023-53519

media: v4l2-mem2mem: add lock to protect parameter num_rdy

MEDIUM

5.5

CVSS Score

Published: October 1, 2025 at 11:46 AM UTC

Updated: June 17, 2026 at 06:45 AM UTC

1 product affected across 1 vendorLinux Kernel

Using Linux by Linux?

Get instant alerts when new vulnerabilities affect Linux - before attackers find them.

Real-time alertsTrack your software stackFree plan available

Start Free Sign In

Severity

MEDIUM5.5

Exploit prediction

EPSS 0.1%

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

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

2.6.39 ≤ v < 4.14.3242.6.39 ≤ v < 4.19.2932.6.39 ≤ v < 5.10.1922.6.39 ≤ v < 5.15.1282.6.39 ≤ v < 5.4.2552.6.39 ≤ v < 6.1.472.6.39 ≤ v < 6.4.122.6.39 ≤ v < 6.54.15 ≤ v < 4.19.2934.20 ≤ v < 5.4.2555.11 ≤ v < 5.15.1285.16 ≤ v < 6.1.475.5 ≤ v < 5.10.1926.2 ≤ v < 6.4.122.6.39908a0d7c588ef87e5cf0a26805e6002a78ac9d13

Vendor states this is fixed in 1676748aa29099fc0abd71e0fb092e76e835f25c (fixed)

Vendor states this is fixed in 56b5c3e67b0f9af3f45cf393be048ee8d8a92694 (fixed)

Vendor states this is fixed in 690dd4780b3f4d755e4e7883e8c3d1b5052f6bf2 (fixed)

Vendor states this is fixed in 7fc7f87725805197388ba749a1801df33000fa50 (fixed)

Vendor states this is fixed in c71aa5f1cf961264690f2560503ea396b6e3c680 (fixed)

Vendor states this is fixed in e01ea1c4191ee08440b5f86db98dff695e9cedf9 (fixed)

Vendor states this is fixed in e52de26cb37459b16213438a2c82feb155dd3bbd (fixed)

Vendor states this is fixed in ef009fe2010ea2a3a7045ecb72729cf366e0967b (fixed)

Vendor states this is fixed in 2.6.39 (unaffected)

Vendor states this is fixed in 4.14.324 (unaffected)

Vendor states this is fixed in 4.19.293 (unaffected)

Vendor states this is fixed in 5.10.192 (unaffected)