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 products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
908a0d7c588ef87e5cf0a26805e6002a78ac9d13 to < 690dd4780b3f4d755e4e7883e8c3d1b5052f6bf2affected908a0d7c588ef87e5cf0a26805e6002a78ac9d13 to < 7fc7f87725805197388ba749a1801df33000fa50affected908a0d7c588ef87e5cf0a26805e6002a78ac9d13 to < ef009fe2010ea2a3a7045ecb72729cf366e0967baffected908a0d7c588ef87e5cf0a26805e6002a78ac9d13 to < e52de26cb37459b16213438a2c82feb155dd3bbdaffected908a0d7c588ef87e5cf0a26805e6002a78ac9d13 to < 1676748aa29099fc0abd71e0fb092e76e835f25caffected908a0d7c588ef87e5cf0a26805e6002a78ac9d13 to < c71aa5f1cf961264690f2560503ea396b6e3c680affected908a0d7c588ef87e5cf0a26805e6002a78ac9d13 to < e01ea1c4191ee08440b5f86db98dff695e9cedf9affected908a0d7c588ef87e5cf0a26805e6002a78ac9d13 to < 56b5c3e67b0f9af3f45cf393be048ee8d8a92694affected
Linux Linux
Default version status: affected
2.6.39affected0 to < 2.6.39unaffected4.14.324 to ≤ 4.14.*unaffected4.19.293 to ≤ 4.19.*unaffected5.4.255 to ≤ 5.4.*unaffected5.10.192 to ≤ 5.10.*unaffected5.15.128 to ≤ 5.15.*unaffected6.1.47 to ≤ 6.1.*unaffected6.4.12 to ≤ 6.4.*unaffected6.5 to ≤ *unaffected
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 ↗