{"id":"DEBIAN-CVE-2024-46735","details":"In the Linux kernel, the following vulnerability has been resolved:  ublk_drv: fix NULL pointer dereference in ublk_ctrl_start_recovery()  When two UBLK_CMD_START_USER_RECOVERY commands are submitted, the first one sets 'ubq-\u003eubq_daemon' to NULL, and the second one triggers WARN in ublk_queue_reinit() and subsequently a NULL pointer dereference issue.  Fix it by adding the check in ublk_ctrl_start_recovery() and return immediately in case of zero 'ub-\u003enr_queues_ready'.    BUG: kernel NULL pointer dereference, address: 0000000000000028   RIP: 0010:ublk_ctrl_start_recovery.constprop.0+0x82/0x180   Call Trace:    \u003cTASK\u003e    ? __die+0x20/0x70    ? page_fault_oops+0x75/0x170    ? exc_page_fault+0x64/0x140    ? asm_exc_page_fault+0x22/0x30    ? ublk_ctrl_start_recovery.constprop.0+0x82/0x180    ublk_ctrl_uring_cmd+0x4f7/0x6c0    ? pick_next_task_idle+0x26/0x40    io_uring_cmd+0x9a/0x1b0    io_issue_sqe+0x193/0x3f0    io_wq_submit_work+0x9b/0x390    io_worker_handle_work+0x165/0x360    io_wq_worker+0xcb/0x2f0    ? finish_task_switch.isra.0+0x203/0x290    ? finish_task_switch.isra.0+0x203/0x290    ? __pfx_io_wq_worker+0x10/0x10    ret_from_fork+0x2d/0x50    ? __pfx_io_wq_worker+0x10/0x10    ret_from_fork_asm+0x1a/0x30    \u003c/TASK\u003e","modified":"2026-09-15T09:03:11.569658876Z","published":"2024-09-18T08:15:03.057Z","upstream":["CVE-2024-46735"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2024-46735"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.112-1"}]}],"versions":["6.1.106-1","6.1.106-2","6.1.106-3","6.1.27-1","6.1.37-1","6.1.38-1","6.1.38-2","6.1.38-2~bpo11+1","6.1.38-3","6.1.38-4","6.1.38-4~bpo11+1","6.1.52-1","6.1.55-1","6.1.55-1~bpo11+1","6.1.64-1","6.1.66-1","6.1.67-1","6.1.69-1","6.1.69-1~bpo11+1","6.1.76-1","6.1.76-1~bpo11+1","6.1.82-1","6.1.85-1","6.1.90-1","6.1.90-1~bpo11+1","6.1.94-1","6.1.94-1~bpo11+1","6.1.98-1","6.1.99-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-46735.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.10.11-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-46735.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.10.11-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-46735.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}