{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2022-49986", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-06-18T10:57:27.386Z", "datePublished": "2025-06-18T11:00:47.985Z", "dateUpdated": "2026-05-11T19:10:32.151Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T19:10:32.151Z" }, "descriptions": [ { "lang": "en", "value": "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": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/scsi/storvsc_drv.c" ], "versions": [ { "version": "436ad941335386c5fc7faa915a8fbdfe8c908084", "lessThan": "b692c238ddfa61f00d97c4c1f021425d132ba96f", "status": "affected", "versionType": "git" }, { "version": "436ad941335386c5fc7faa915a8fbdfe8c908084", "lessThan": "b4c928ace9a123629eeb14ec5d7ee8f73e5ac668", "status": "affected", "versionType": "git" }, { "version": "436ad941335386c5fc7faa915a8fbdfe8c908084", "lessThan": "46fcb0fc884db78a0384be92cc2a51927e6581b8", "status": "affected", "versionType": "git" }, { "version": "436ad941335386c5fc7faa915a8fbdfe8c908084", "lessThan": "cd2a50d0a097a42b6de283377da98ff757505120", "status": "affected", "versionType": "git" }, { "version": "436ad941335386c5fc7faa915a8fbdfe8c908084", "lessThan": "828f57ac75eaccd6607ee4d1468d34e983e32c68", "status": "affected", "versionType": "git" }, { "version": "436ad941335386c5fc7faa915a8fbdfe8c908084", "lessThan": "d957e7ffb2c72410bcc1a514153a46719255a5da", "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/scsi/storvsc_drv.c" ], "versions": [ { "version": "4.15", "status": "affected" }, { "version": "0", "lessThan": "4.15", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.257", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.212", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.140", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.64", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.19.6", "lessThanOrEqual": "5.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.0", "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": "4.15", "versionEndExcluding": "4.19.257" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "5.4.212" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "5.10.140" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "5.15.64" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "5.19.6" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "6.0" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/b692c238ddfa61f00d97c4c1f021425d132ba96f" }, { "url": "https://git.kernel.org/stable/c/b4c928ace9a123629eeb14ec5d7ee8f73e5ac668" }, { "url": "https://git.kernel.org/stable/c/46fcb0fc884db78a0384be92cc2a51927e6581b8" }, { "url": "https://git.kernel.org/stable/c/cd2a50d0a097a42b6de283377da98ff757505120" }, { "url": "https://git.kernel.org/stable/c/828f57ac75eaccd6607ee4d1468d34e983e32c68" }, { "url": "https://git.kernel.org/stable/c/d957e7ffb2c72410bcc1a514153a46719255a5da" } ], "title": "scsi: storvsc: Remove WQ_MEM_RECLAIM from storvsc_error_wq", "x_generator": { "engine": "bippy-1.2.0" } } } }