{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-47583","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-05-24T15:11:00.731Z","datePublished":"2024-06-19T14:53:49.459Z","dateUpdated":"2025-05-04T07:14:08.977Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T07:14:08.977Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: mxl111sf: change mutex_init() location\n\nSyzbot reported, that mxl111sf_ctrl_msg() uses uninitialized\nmutex. The problem was in wrong mutex_init() location.\n\nPrevious mutex_init(&state->msg_lock) call was in ->init() function, but\ndvb_usbv2_init() has this order of calls:\n\n\tdvb_usbv2_init()\n\t  dvb_usbv2_adapter_init()\n\t    dvb_usbv2_adapter_frontend_init()\n\t      props->frontend_attach()\n\n\t  props->init()\n\nSince mxl111sf_* devices call mxl111sf_ctrl_msg() in ->frontend_attach()\ninternally we need to initialize state->msg_lock before\nfrontend_attach(). To achieve it, ->probe() call added to all mxl111sf_*\ndevices, which will simply initiaize mutex."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/media/usb/dvb-usb-v2/mxl111sf.c"],"versions":[{"version":"8572211842afc53c8450fb470f2b8d02ba7592e0","lessThan":"4b2d9600b31f9ba7adbc9f3c54a068615d27b390","status":"affected","versionType":"git"},{"version":"8572211842afc53c8450fb470f2b8d02ba7592e0","lessThan":"96f182c9f48b984447741f054ec301fdc8517035","status":"affected","versionType":"git"},{"version":"8572211842afc53c8450fb470f2b8d02ba7592e0","lessThan":"b99bdf127af91d53919e96292c05f737c45ea59a","status":"affected","versionType":"git"},{"version":"8572211842afc53c8450fb470f2b8d02ba7592e0","lessThan":"8c6fdf62bfe1bc72bfceeaf832ef7499c7ed09ba","status":"affected","versionType":"git"},{"version":"8572211842afc53c8450fb470f2b8d02ba7592e0","lessThan":"44870a9e7a3c24acbb3f888b2a7cc22c9bdf7e7f","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/media/usb/dvb-usb-v2/mxl111sf.c"],"versions":[{"version":"3.7","status":"affected"},{"version":"0","lessThan":"3.7","status":"unaffected","versionType":"semver"},{"version":"4.19.222","lessThanOrEqual":"4.19.*","status":"unaffected","versionType":"semver"},{"version":"5.4.168","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.88","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.11","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"5.16","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.7","versionEndExcluding":"4.19.222"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.7","versionEndExcluding":"5.4.168"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.7","versionEndExcluding":"5.10.88"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.7","versionEndExcluding":"5.15.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.7","versionEndExcluding":"5.16"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/4b2d9600b31f9ba7adbc9f3c54a068615d27b390"},{"url":"https://git.kernel.org/stable/c/96f182c9f48b984447741f054ec301fdc8517035"},{"url":"https://git.kernel.org/stable/c/b99bdf127af91d53919e96292c05f737c45ea59a"},{"url":"https://git.kernel.org/stable/c/8c6fdf62bfe1bc72bfceeaf832ef7499c7ed09ba"},{"url":"https://git.kernel.org/stable/c/44870a9e7a3c24acbb3f888b2a7cc22c9bdf7e7f"}],"title":"media: mxl111sf: change mutex_init() location","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-06-24T18:10:30.676527Z","id":"CVE-2021-47583","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-06-24T18:10:38.381Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-04T05:39:59.828Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/4b2d9600b31f9ba7adbc9f3c54a068615d27b390","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/96f182c9f48b984447741f054ec301fdc8517035","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/b99bdf127af91d53919e96292c05f737c45ea59a","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/8c6fdf62bfe1bc72bfceeaf832ef7499c7ed09ba","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/44870a9e7a3c24acbb3f888b2a7cc22c9bdf7e7f","tags":["x_transferred"]}]}]}}