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
Product status
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 690dd4780b3f4d755e4e7883e8c3d1b5052f6bf2
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 7fc7f87725805197388ba749a1801df33000fa50
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before ef009fe2010ea2a3a7045ecb72729cf366e0967b
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before e52de26cb37459b16213438a2c82feb155dd3bbd
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 1676748aa29099fc0abd71e0fb092e76e835f25c
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before c71aa5f1cf961264690f2560503ea396b6e3c680
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before e01ea1c4191ee08440b5f86db98dff695e9cedf9
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 56b5c3e67b0f9af3f45cf393be048ee8d8a92694
4.14.324
4.19.293
5.4.255
5.10.192
5.15.128
6.1.47
6.4.12
6.5
References
git.kernel.org/...c/690dd4780b3f4d755e4e7883e8c3d1b5052f6bf2
git.kernel.org/...c/7fc7f87725805197388ba749a1801df33000fa50
git.kernel.org/...c/ef009fe2010ea2a3a7045ecb72729cf366e0967b
git.kernel.org/...c/e52de26cb37459b16213438a2c82feb155dd3bbd
git.kernel.org/...c/1676748aa29099fc0abd71e0fb092e76e835f25c
git.kernel.org/...c/c71aa5f1cf961264690f2560503ea396b6e3c680
git.kernel.org/...c/e01ea1c4191ee08440b5f86db98dff695e9cedf9
git.kernel.org/...c/56b5c3e67b0f9af3f45cf393be048ee8d8a92694
