CVE-2023-53519: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.1% chance of exploitation in the next 30 days.

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 products

• Linux Linux Kernel: from 2.6.39, before 4.14.324 (fixed in 4.14.324); from 4.15, before 4.19.293 (fixed in 4.19.293); from 4.20, before 5.4.255 (fixed in 5.4.255); from 5.5, before 5.10.192 (fixed in 5.10.192); from 5.11, before 5.15.128 (fixed in 5.15.128); from 5.16, before 6.1.47 (fixed in 6.1.47); …

Published 2025-10-01. Last modified 2026-06-17.