Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 908a0d7c588ef87e5cf0a26805e6002a78ac9d13 before 690dd4780b3f4d755e4e7883e8c3d1b5052f6bf2; affected 908a0d7c588ef87e5cf0a26805e6002a78ac9d13 before 7fc7f87725805197388ba749a1801df33000fa50; affected 908a0d7c588ef87e5cf0a26805e6002a78ac9d13 before ef009fe2010ea2a3a7045ecb72729cf366e0967b; affected 908a0d7c588ef87e5cf0a26805e6002a78ac9d13 before e52de26cb37459b16213438a2c82feb155dd3bbd; affected 908a0d7c588ef87e5cf0a26805e6002a78ac9d13 before 1676748aa29099fc0abd71e0fb092e76e835f25c; affected 908a0d7c588ef87e5cf0a26805e6002a78ac9d13 before c71aa5f1cf961264690f2560503ea396b6e3c680; affected 908a0d7c588ef87e5cf0a26805e6002a78ac9d13 before e01ea1c4191ee08440b5f86db98dff695e9cedf9; affected 908a0d7c588ef87e5cf0a26805e6002a78ac9d13 before 56b5c3e67b0f9af3f45cf393be048ee8d8a92694 |
| Linux / Linux | affected 2.6.39; unaffected 0 before 2.6.39; unaffected 4.14.324 through 4.14.*; unaffected 4.19.293 through 4.19.*; unaffected 5.4.255 through 5.4.*; unaffected 5.10.192 through 5.10.*; unaffected 5.15.128 through 5.15.*; unaffected 6.1.47 through 6.1.*; unaffected 6.4.12 through 6.4.*; unaffected 6.5 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/690dd4780b3f4d755e4e7883e8c3d1b5052f6bf2
- https://git.kernel.org/stable/c/7fc7f87725805197388ba749a1801df33000fa50
- https://git.kernel.org/stable/c/ef009fe2010ea2a3a7045ecb72729cf366e0967b
- https://git.kernel.org/stable/c/e52de26cb37459b16213438a2c82feb155dd3bbd
- https://git.kernel.org/stable/c/1676748aa29099fc0abd71e0fb092e76e835f25c
- https://git.kernel.org/stable/c/c71aa5f1cf961264690f2560503ea396b6e3c680
- https://git.kernel.org/stable/c/e01ea1c4191ee08440b5f86db98dff695e9cedf9
- https://git.kernel.org/stable/c/56b5c3e67b0f9af3f45cf393be048ee8d8a92694