{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-46735","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-09-11T15:12:18.257Z","datePublished":"2024-09-18T07:11:57.279Z","dateUpdated":"2025-11-03T22:17:17.698Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T09:33:02.432Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nublk_drv: fix NULL pointer dereference in ublk_ctrl_start_recovery()\n\nWhen two UBLK_CMD_START_USER_RECOVERY commands are submitted, the\nfirst one sets 'ubq->ubq_daemon' to NULL, and the second one triggers\nWARN in ublk_queue_reinit() and subsequently a NULL pointer dereference\nissue.\n\nFix it by adding the check in ublk_ctrl_start_recovery() and return\nimmediately in case of zero 'ub->nr_queues_ready'.\n\n  BUG: kernel NULL pointer dereference, address: 0000000000000028\n  RIP: 0010:ublk_ctrl_start_recovery.constprop.0+0x82/0x180\n  Call Trace:\n   <TASK>\n   ? __die+0x20/0x70\n   ? page_fault_oops+0x75/0x170\n   ? exc_page_fault+0x64/0x140\n   ? asm_exc_page_fault+0x22/0x30\n   ? ublk_ctrl_start_recovery.constprop.0+0x82/0x180\n   ublk_ctrl_uring_cmd+0x4f7/0x6c0\n   ? pick_next_task_idle+0x26/0x40\n   io_uring_cmd+0x9a/0x1b0\n   io_issue_sqe+0x193/0x3f0\n   io_wq_submit_work+0x9b/0x390\n   io_worker_handle_work+0x165/0x360\n   io_wq_worker+0xcb/0x2f0\n   ? finish_task_switch.isra.0+0x203/0x290\n   ? finish_task_switch.isra.0+0x203/0x290\n   ? __pfx_io_wq_worker+0x10/0x10\n   ret_from_fork+0x2d/0x50\n   ? __pfx_io_wq_worker+0x10/0x10\n   ret_from_fork_asm+0x1a/0x30\n   </TASK>"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/block/ublk_drv.c"],"versions":[{"version":"c732a852b419fa057b53657e2daaf9433940391c","lessThan":"ca249435893dda766f3845c15ca77ca5672022d8","status":"affected","versionType":"git"},{"version":"c732a852b419fa057b53657e2daaf9433940391c","lessThan":"136a29d8112df4ea0a57f9602ddf3579e04089dc","status":"affected","versionType":"git"},{"version":"c732a852b419fa057b53657e2daaf9433940391c","lessThan":"7c890ef60bf417d3fe5c6f7a9f6cef0e1d77f74f","status":"affected","versionType":"git"},{"version":"c732a852b419fa057b53657e2daaf9433940391c","lessThan":"e58f5142f88320a5b1449f96a146f2f24615c5c7","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/block/ublk_drv.c"],"versions":[{"version":"6.1","status":"affected"},{"version":"0","lessThan":"6.1","status":"unaffected","versionType":"semver"},{"version":"6.1.110","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.51","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.10.10","lessThanOrEqual":"6.10.*","status":"unaffected","versionType":"semver"},{"version":"6.11","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":"6.1","versionEndExcluding":"6.1.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.6.51"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.10.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.11"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/ca249435893dda766f3845c15ca77ca5672022d8"},{"url":"https://git.kernel.org/stable/c/136a29d8112df4ea0a57f9602ddf3579e04089dc"},{"url":"https://git.kernel.org/stable/c/7c890ef60bf417d3fe5c6f7a9f6cef0e1d77f74f"},{"url":"https://git.kernel.org/stable/c/e58f5142f88320a5b1449f96a146f2f24615c5c7"}],"title":"ublk_drv: fix NULL pointer dereference in ublk_ctrl_start_recovery()","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-09-29T14:53:03.707507Z","id":"CVE-2024-46735","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":"2024-09-29T14:53:18.545Z"}},{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2025-11-03T22:17:17.698Z"}}]}}