{"id":"DEBIAN-CVE-2022-49986","details":"In the Linux kernel, the following vulnerability has been resolved:  scsi: storvsc: Remove WQ_MEM_RECLAIM from storvsc_error_wq  storvsc_error_wq workqueue should not be marked as WQ_MEM_RECLAIM as it doesn't need to make forward progress under memory pressure.  Marking this workqueue as WQ_MEM_RECLAIM may cause deadlock while flushing a non-WQ_MEM_RECLAIM workqueue.  In the current state it causes the following warning:  [   14.506347] ------------[ cut here ]------------ [   14.506354] workqueue: WQ_MEM_RECLAIM storvsc_error_wq_0:storvsc_remove_lun is flushing !WQ_MEM_RECLAIM events_freezable_power_:disk_events_workfn [   14.506360] WARNING: CPU: 0 PID: 8 at \u003c-snip-\u003ekernel/workqueue.c:2623 check_flush_dependency+0xb5/0x130 [   14.506390] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.4.0-1086-azure #91~18.04.1-Ubuntu [   14.506391] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.1 05/09/2022 [   14.506393] Workqueue: storvsc_error_wq_0 storvsc_remove_lun [   14.506395] RIP: 0010:check_flush_dependency+0xb5/0x130 \t\t\u003c-snip-\u003e [   14.506408] Call Trace: [   14.506412]  __flush_work+0xf1/0x1c0 [   14.506414]  __cancel_work_timer+0x12f/0x1b0 [   14.506417]  ? kernfs_put+0xf0/0x190 [   14.506418]  cancel_delayed_work_sync+0x13/0x20 [   14.506420]  disk_block_events+0x78/0x80 [   14.506421]  del_gendisk+0x3d/0x2f0 [   14.506423]  sr_remove+0x28/0x70 [   14.506427]  device_release_driver_internal+0xef/0x1c0 [   14.506428]  device_release_driver+0x12/0x20 [   14.506429]  bus_remove_device+0xe1/0x150 [   14.506431]  device_del+0x167/0x380 [   14.506432]  __scsi_remove_device+0x11d/0x150 [   14.506433]  scsi_remove_device+0x26/0x40 [   14.506434]  storvsc_remove_lun+0x40/0x60 [   14.506436]  process_one_work+0x209/0x400 [   14.506437]  worker_thread+0x34/0x400 [   14.506439]  kthread+0x121/0x140 [   14.506440]  ? process_one_work+0x400/0x400 [   14.506441]  ? kthread_park+0x90/0x90 [   14.506443]  ret_from_fork+0x35/0x40 [   14.506445] ---[ end trace 2d9633159fdc6ee7 ]---","modified":"2026-09-01T16:05:33.876423972Z","published":"2025-06-18T11:15:26.183Z","upstream":["CVE-2022-49986"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2022-49986"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.2-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49986.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.2-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49986.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.2-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49986.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"}]}