{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2022-49986", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-49986", "idYear": 2022, "status": "PUBLISHED", "publishedAt": "2025-06-18T11:00:47.985Z", "updatedAt": "2026-05-11T19:10:32.151Z", "importedAt": "2026-10-24T01:56:49.724Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "scsi: storvsc: Remove WQ_MEM_RECLAIM from storvsc_error_wq", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: storvsc: Remove WQ_MEM_RECLAIM from storvsc_error_wq\n\nstorvsc_error_wq workqueue should not be marked as WQ_MEM_RECLAIM as it\ndoesn't need to make forward progress under memory pressure. Marking this\nworkqueue as WQ_MEM_RECLAIM may cause deadlock while flushing a\nnon-WQ_MEM_RECLAIM workqueue. In the current state it causes the following\nwarning:\n\n[ 14.506347] ------------[ cut here ]------------\n[ 14.506354] workqueue: WQ_MEM_RECLAIM storvsc_error_wq_0:storvsc_remove_lun is flushing !WQ_MEM_RECLAIM events_freezable_power_:disk_events_workfn\n[ 14.506360] WARNING: CPU: 0 PID: 8 at <-snip->kernel/workqueue.c:2623 check_flush_dependency+0xb5/0x130\n[ 14.506390] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.4.0-1086-azure #91~18.04.1-Ubuntu\n[ 14.506391] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.1 05/09/2022\n[ 14.506393] Workqueue: storvsc_error_wq_0 storvsc_remove_lun\n[ 14.506395] RIP: 0010:check_flush_dependency+0xb5/0x130\n\t\t<-snip->\n[ 14.506408] Call Trace:\n[ 14.506412] __flush_work+0xf1/0x1c0\n[ 14.506414] __cancel_work_timer+0x12f/0x1b0\n[ 14.506417] ? kernfs_put+0xf0/0x190\n[ 14.506418] cancel_delayed_work_sync+0x13/0x20\n[ 14.506420] disk_block_events+0x78/0x80\n[ 14.506421] del_gendisk+0x3d/0x2f0\n[ 14.506423] sr_remove+0x28/0x70\n[ 14.506427] device_release_driver_internal+0xef/0x1c0\n[ 14.506428] device_release_driver+0x12/0x20\n[ 14.506429] bus_remove_device+0xe1/0x150\n[ 14.506431] device_del+0x167/0x380\n[ 14.506432] __scsi_remove_device+0x11d/0x150\n[ 14.506433] scsi_remove_device+0x26/0x40\n[ 14.506434] storvsc_remove_lun+0x40/0x60\n[ 14.506436] process_one_work+0x209/0x400\n[ 14.506437] worker_thread+0x34/0x400\n[ 14.506439] kthread+0x121/0x140\n[ 14.506440] ? process_one_work+0x400/0x400\n[ 14.506441] ? kthread_park+0x90/0x90\n[ 14.506443] ret_from_fork+0x35/0x40\n[ 14.506445] ---[ end trace 2d9633159fdc6ee7 ]---", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "436ad941335386c5fc7faa915a8fbdfe8c908084", "status": "affected", "versionType": "git", "lessThan": "b692c238ddfa61f00d97c4c1f021425d132ba96f" }, { "version": "436ad941335386c5fc7faa915a8fbdfe8c908084", "status": "affected", "versionType": "git", "lessThan": "b4c928ace9a123629eeb14ec5d7ee8f73e5ac668" }, { "version": "436ad941335386c5fc7faa915a8fbdfe8c908084", "status": "affected", "versionType": "git", "lessThan": "46fcb0fc884db78a0384be92cc2a51927e6581b8" }, { "version": "436ad941335386c5fc7faa915a8fbdfe8c908084", "status": "affected", "versionType": "git", "lessThan": "cd2a50d0a097a42b6de283377da98ff757505120" }, { "version": "436ad941335386c5fc7faa915a8fbdfe8c908084", "status": "affected", "versionType": "git", "lessThan": "828f57ac75eaccd6607ee4d1468d34e983e32c68" }, { "version": "436ad941335386c5fc7faa915a8fbdfe8c908084", "status": "affected", "versionType": "git", "lessThan": "d957e7ffb2c72410bcc1a514153a46719255a5da" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "4.15", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "4.15" }, { "version": "4.19.257", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.19.*" }, { "version": "5.4.212", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.4.*" }, { "version": "5.10.140", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.64", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "5.19.6", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.19.*" }, { "version": "6.0", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }