{"id":"CVE-2021-47382","state":"PUBLISHED","title":"s390/qeth: fix deadlock during failing recovery","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/qeth: fix deadlock during failing recovery\n\nCommit 0b9902c1fcc5 (\"s390/qeth: fix deadlock during recovery\") removed\ntaking discipline_mutex inside qeth_do_reset(), fixing potential\ndeadlocks. An error path was missed though, that still takes\ndiscipline_mutex and thus has the original deadlock potential.\n\nIntermittent deadlocks were seen when a qeth channel path is configured\noffline, causing a race between qeth_do_reset and ccwgroup_remove.\nCall qeth_set_offline() directly in the qeth_do_reset() error case and\nthen a new variant of ccwgroup_set_offline(), without taking\ndiscipline_mutex.","publishedAt":"2024-05-21T15:03:43.621Z","updatedAt":"2026-05-23T15:19:52.681Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"b41b554c1ee75070a14c02a88496b1f231c7eacc","status":"affected","lessThan":"0bfe741741327822d1482c7edef0184636d08b40","versionType":"git"},{"version":"b41b554c1ee75070a14c02a88496b1f231c7eacc","status":"affected","lessThan":"d2b59bd4b06d84a4eadb520b0f71c62fe8ec0a62","versionType":"git"},{"version":"af0c184ea106051e428b5a0b5f2dfd31cbc54c52","status":"affected","versionType":"git"},{"version":"5.10.8","status":"affected","lessThan":"5.11","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/s390/include/asm/ccwgroup.h","drivers/s390/cio/ccwgroup.c","drivers/s390/net/qeth_core_main.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.11","versionType":"semver"},{"version":"5.14.10","status":"unaffected","lessThanOrEqual":"5.14.*","versionType":"semver"},{"version":"5.15","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/s390/include/asm/ccwgroup.h","drivers/s390/cio/ccwgroup.c","drivers/s390/net/qeth_core_main.c"]}],"references":["https://git.kernel.org/stable/c/0bfe741741327822d1482c7edef0184636d08b40","https://git.kernel.org/stable/c/d2b59bd4b06d84a4eadb520b0f71c62fe8ec0a62"],"weaknesses":[],"ingestedAt":"2026-10-29T19:49:19.404Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/47xxx/CVE-2021-47382.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2021-47382","state":"PUBLISHED","datePublished":"2024-05-21T15:03:43.621Z","dateUpdated":"2026-05-23T15:19:52.681Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-05-21T14:58:30.812Z"},"containers":{"cna":{"title":"s390/qeth: fix deadlock during failing recovery","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/qeth: fix deadlock during failing recovery\n\nCommit 0b9902c1fcc5 (\"s390/qeth: fix deadlock during recovery\") removed\ntaking discipline_mutex inside qeth_do_reset(), fixing potential\ndeadlocks. An error path was missed though, that still takes\ndiscipline_mutex and thus has the original deadlock potential.\n\nIntermittent deadlocks were seen when a qeth channel path is configured\noffline, causing a race between qeth_do_reset and ccwgroup_remove.\nCall qeth_set_offline() directly in the qeth_do_reset() error case and\nthen a new variant of ccwgroup_set_offline(), without taking\ndiscipline_mutex."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"b41b554c1ee75070a14c02a88496b1f231c7eacc","status":"affected","lessThan":"0bfe741741327822d1482c7edef0184636d08b40","versionType":"git"},{"version":"b41b554c1ee75070a14c02a88496b1f231c7eacc","status":"affected","lessThan":"d2b59bd4b06d84a4eadb520b0f71c62fe8ec0a62","versionType":"git"},{"version":"af0c184ea106051e428b5a0b5f2dfd31cbc54c52","status":"affected","versionType":"git"},{"version":"5.10.8","status":"affected","lessThan":"5.11","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/s390/include/asm/ccwgroup.h","drivers/s390/cio/ccwgroup.c","drivers/s390/net/qeth_core_main.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.11","versionType":"semver"},{"version":"5.14.10","status":"unaffected","lessThanOrEqual":"5.14.*","versionType":"semver"},{"version":"5.15","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/s390/include/asm/ccwgroup.h","drivers/s390/cio/ccwgroup.c","drivers/s390/net/qeth_core_main.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/0bfe741741327822d1482c7edef0184636d08b40"},{"url":"https://git.kernel.org/stable/c/d2b59bd4b06d84a4eadb520b0f71c62fe8ec0a62"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-23T15:19:52.681Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.14.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.15"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10.8"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2021-47382","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-05-23T18:35:24.941237Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-06-04T17:13:42.739Z"}},{"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/0bfe741741327822d1482c7edef0184636d08b40","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/d2b59bd4b06d84a4eadb520b0f71c62fe8ec0a62","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T05:32:08.576Z"}}]}}}