{"id":"CVE-2023-53519","state":"PUBLISHED","title":"media: v4l2-mem2mem: add lock to protect parameter num_rdy","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: v4l2-mem2mem: add lock to protect parameter num_rdy\n\nGetting below error when using KCSAN to check the driver. Adding lock to\nprotect parameter num_rdy when getting the value with function:\nv4l2_m2m_num_src_bufs_ready/v4l2_m2m_num_dst_bufs_ready.\n\nkworker/u16:3: [name:report&]BUG: KCSAN: data-race in v4l2_m2m_buf_queue\nkworker/u16:3: [name:report&]\n\nkworker/u16:3: [name:report&]read-write to 0xffffff8105f35b94 of 1 bytes by task 20865 on cpu 7:\nkworker/u16:3:  v4l2_m2m_buf_queue+0xd8/0x10c","publishedAt":"2025-10-01T11:46:06.419Z","updatedAt":"2026-05-11T19:46:32.646Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"908a0d7c588ef87e5cf0a26805e6002a78ac9d13","status":"affected","lessThan":"690dd4780b3f4d755e4e7883e8c3d1b5052f6bf2","versionType":"git"},{"version":"908a0d7c588ef87e5cf0a26805e6002a78ac9d13","status":"affected","lessThan":"7fc7f87725805197388ba749a1801df33000fa50","versionType":"git"},{"version":"908a0d7c588ef87e5cf0a26805e6002a78ac9d13","status":"affected","lessThan":"ef009fe2010ea2a3a7045ecb72729cf366e0967b","versionType":"git"},{"version":"908a0d7c588ef87e5cf0a26805e6002a78ac9d13","status":"affected","lessThan":"e52de26cb37459b16213438a2c82feb155dd3bbd","versionType":"git"},{"version":"908a0d7c588ef87e5cf0a26805e6002a78ac9d13","status":"affected","lessThan":"1676748aa29099fc0abd71e0fb092e76e835f25c","versionType":"git"},{"version":"908a0d7c588ef87e5cf0a26805e6002a78ac9d13","status":"affected","lessThan":"c71aa5f1cf961264690f2560503ea396b6e3c680","versionType":"git"},{"version":"908a0d7c588ef87e5cf0a26805e6002a78ac9d13","status":"affected","lessThan":"e01ea1c4191ee08440b5f86db98dff695e9cedf9","versionType":"git"},{"version":"908a0d7c588ef87e5cf0a26805e6002a78ac9d13","status":"affected","lessThan":"56b5c3e67b0f9af3f45cf393be048ee8d8a92694","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["include/media/v4l2-mem2mem.h"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.39","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.39","versionType":"semver"},{"version":"4.14.324","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.293","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.255","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.192","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.128","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.47","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.4.12","status":"unaffected","lessThanOrEqual":"6.4.*","versionType":"semver"},{"version":"6.5","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["include/media/v4l2-mem2mem.h"]}],"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"],"weaknesses":[],"ingestedAt":"2026-10-29T20:06:33.064Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/53xxx/CVE-2023-53519.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-53519","state":"PUBLISHED","datePublished":"2025-10-01T11:46:06.419Z","dateUpdated":"2026-05-11T19:46:32.646Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-10-01T11:39:39.407Z"},"containers":{"cna":{"title":"media: v4l2-mem2mem: add lock to protect parameter num_rdy","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: v4l2-mem2mem: add lock to protect parameter num_rdy\n\nGetting below error when using KCSAN to check the driver. Adding lock to\nprotect parameter num_rdy when getting the value with function:\nv4l2_m2m_num_src_bufs_ready/v4l2_m2m_num_dst_bufs_ready.\n\nkworker/u16:3: [name:report&]BUG: KCSAN: data-race in v4l2_m2m_buf_queue\nkworker/u16:3: [name:report&]\n\nkworker/u16:3: [name:report&]read-write to 0xffffff8105f35b94 of 1 bytes by task 20865 on cpu 7:\nkworker/u16:3:  v4l2_m2m_buf_queue+0xd8/0x10c"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"908a0d7c588ef87e5cf0a26805e6002a78ac9d13","status":"affected","lessThan":"690dd4780b3f4d755e4e7883e8c3d1b5052f6bf2","versionType":"git"},{"version":"908a0d7c588ef87e5cf0a26805e6002a78ac9d13","status":"affected","lessThan":"7fc7f87725805197388ba749a1801df33000fa50","versionType":"git"},{"version":"908a0d7c588ef87e5cf0a26805e6002a78ac9d13","status":"affected","lessThan":"ef009fe2010ea2a3a7045ecb72729cf366e0967b","versionType":"git"},{"version":"908a0d7c588ef87e5cf0a26805e6002a78ac9d13","status":"affected","lessThan":"e52de26cb37459b16213438a2c82feb155dd3bbd","versionType":"git"},{"version":"908a0d7c588ef87e5cf0a26805e6002a78ac9d13","status":"affected","lessThan":"1676748aa29099fc0abd71e0fb092e76e835f25c","versionType":"git"},{"version":"908a0d7c588ef87e5cf0a26805e6002a78ac9d13","status":"affected","lessThan":"c71aa5f1cf961264690f2560503ea396b6e3c680","versionType":"git"},{"version":"908a0d7c588ef87e5cf0a26805e6002a78ac9d13","status":"affected","lessThan":"e01ea1c4191ee08440b5f86db98dff695e9cedf9","versionType":"git"},{"version":"908a0d7c588ef87e5cf0a26805e6002a78ac9d13","status":"affected","lessThan":"56b5c3e67b0f9af3f45cf393be048ee8d8a92694","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["include/media/v4l2-mem2mem.h"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.39","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.39","versionType":"semver"},{"version":"4.14.324","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.293","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.255","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.192","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.128","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.47","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.4.12","status":"unaffected","lessThanOrEqual":"6.4.*","versionType":"semver"},{"version":"6.5","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["include/media/v4l2-mem2mem.h"]}],"references":[{"url":"https://git.kernel.org/stable/c/690dd4780b3f4d755e4e7883e8c3d1b5052f6bf2"},{"url":"https://git.kernel.org/stable/c/7fc7f87725805197388ba749a1801df33000fa50"},{"url":"https://git.kernel.org/stable/c/ef009fe2010ea2a3a7045ecb72729cf366e0967b"},{"url":"https://git.kernel.org/stable/c/e52de26cb37459b16213438a2c82feb155dd3bbd"},{"url":"https://git.kernel.org/stable/c/1676748aa29099fc0abd71e0fb092e76e835f25c"},{"url":"https://git.kernel.org/stable/c/c71aa5f1cf961264690f2560503ea396b6e3c680"},{"url":"https://git.kernel.org/stable/c/e01ea1c4191ee08440b5f86db98dff695e9cedf9"},{"url":"https://git.kernel.org/stable/c/56b5c3e67b0f9af3f45cf393be048ee8d8a92694"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:46:32.646Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.39","versionEndExcluding":"4.14.324"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.39","versionEndExcluding":"4.19.293"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.39","versionEndExcluding":"5.4.255"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.39","versionEndExcluding":"5.10.192"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.39","versionEndExcluding":"5.15.128"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.39","versionEndExcluding":"6.1.47"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.39","versionEndExcluding":"6.4.12"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.39","versionEndExcluding":"6.5"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}