{"id":"DEBIAN-CVE-2024-42294","details":"In the Linux kernel, the following vulnerability has been resolved:  block: fix deadlock between sd_remove & sd_release  Our test report the following hung task:  [ 2538.459400] INFO: task \"kworker/0:0\":7 blocked for more than 188 seconds. [ 2538.459427] Call trace: [ 2538.459430]  __switch_to+0x174/0x338 [ 2538.459436]  __schedule+0x628/0x9c4 [ 2538.459442]  schedule+0x7c/0xe8 [ 2538.459447]  schedule_preempt_disabled+0x24/0x40 [ 2538.459453]  __mutex_lock+0x3ec/0xf04 [ 2538.459456]  __mutex_lock_slowpath+0x14/0x24 [ 2538.459459]  mutex_lock+0x30/0xd8 [ 2538.459462]  del_gendisk+0xdc/0x350 [ 2538.459466]  sd_remove+0x30/0x60 [ 2538.459470]  device_release_driver_internal+0x1c4/0x2c4 [ 2538.459474]  device_release_driver+0x18/0x28 [ 2538.459478]  bus_remove_device+0x15c/0x174 [ 2538.459483]  device_del+0x1d0/0x358 [ 2538.459488]  __scsi_remove_device+0xa8/0x198 [ 2538.459493]  scsi_forget_host+0x50/0x70 [ 2538.459497]  scsi_remove_host+0x80/0x180 [ 2538.459502]  usb_stor_disconnect+0x68/0xf4 [ 2538.459506]  usb_unbind_interface+0xd4/0x280 [ 2538.459510]  device_release_driver_internal+0x1c4/0x2c4 [ 2538.459514]  device_release_driver+0x18/0x28 [ 2538.459518]  bus_remove_device+0x15c/0x174 [ 2538.459523]  device_del+0x1d0/0x358 [ 2538.459528]  usb_disable_device+0x84/0x194 [ 2538.459532]  usb_disconnect+0xec/0x300 [ 2538.459537]  hub_event+0xb80/0x1870 [ 2538.459541]  process_scheduled_works+0x248/0x4dc [ 2538.459545]  worker_thread+0x244/0x334 [ 2538.459549]  kthread+0x114/0x1bc  [ 2538.461001] INFO: task \"fsck.\":15415 blocked for more than 188 seconds. [ 2538.461014] Call trace: [ 2538.461016]  __switch_to+0x174/0x338 [ 2538.461021]  __schedule+0x628/0x9c4 [ 2538.461025]  schedule+0x7c/0xe8 [ 2538.461030]  blk_queue_enter+0xc4/0x160 [ 2538.461034]  blk_mq_alloc_request+0x120/0x1d4 [ 2538.461037]  scsi_execute_cmd+0x7c/0x23c [ 2538.461040]  ioctl_internal_command+0x5c/0x164 [ 2538.461046]  scsi_set_medium_removal+0x5c/0xb0 [ 2538.461051]  sd_release+0x50/0x94 [ 2538.461054]  blkdev_put+0x190/0x28c [ 2538.461058]  blkdev_release+0x28/0x40 [ 2538.461063]  __fput+0xf8/0x2a8 [ 2538.461066]  __fput_sync+0x28/0x5c [ 2538.461070]  __arm64_sys_close+0x84/0xe8 [ 2538.461073]  invoke_syscall+0x58/0x114 [ 2538.461078]  el0_svc_common+0xac/0xe0 [ 2538.461082]  do_el0_svc+0x1c/0x28 [ 2538.461087]  el0_svc+0x38/0x68 [ 2538.461090]  el0t_64_sync_handler+0x68/0xbc [ 2538.461093]  el0t_64_sync+0x1a8/0x1ac    T1:\t\t\t\tT2:   sd_remove   del_gendisk   __blk_mark_disk_dead   blk_freeze_queue_start   ++q-\u003emq_freeze_depth   \t\t\t\tbdev_release  \t\t\t\tmutex_lock(&disk-\u003eopen_mutex)   \t\t\t\tsd_release  \t\t\t\tscsi_execute_cmd  \t\t\t\tblk_queue_enter  \t\t\t\twait_event(!q-\u003emq_freeze_depth)   mutex_lock(&disk-\u003eopen_mutex)  SCSI does not set GD_OWNS_QUEUE, so QUEUE_FLAG_DYING is not set in this scenario. This is a classic ABBA deadlock. To fix the deadlock, make sure we don't try to acquire disk-\u003eopen_mutex after freezing the queue.","modified":"2026-09-15T09:03:10.303030853Z","published":"2024-08-17T09:15:09.947Z","upstream":["CVE-2024-42294"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2024-42294"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.10.3-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-42294.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.10.3-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-42294.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"}]}