{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74442", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.897Z", "datePublished": "2026-08-15T12:26:50.102Z", "dateUpdated": "2026-08-15T12:26:50.102Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-15T12:26:50.102Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vmwgfx: avoid destroy_workqueue(NULL) on vkms init failure\n\nTwo paths through vmw_vkms_init() can leave vmw->crc_workq NULL while\nstill leaving the rest of the driver in a state that calls\nvmw_vkms_cleanup() at module unload:\n\n 1. vmw_host_get_guestinfo(GUESTINFO_VBLANK, ...) failing or\n returning an oversized buffer -- the common case on hosts\n without a VBLANK guestinfo entry -- early-returned before the\n workqueue allocation.\n 2. alloc_ordered_workqueue() returning NULL on memory pressure.\n\nvmw_vkms_cleanup() then calls destroy_workqueue(NULL), which\ndereferences wq->name and panics.\n\nFix the first case by removing the early return: vmw->vkms_enabled\nis already false on the rpci-failure path so no work will ever be\nqueued, and allocating the workqueue unconditionally keeps the\ncontrol flow simple. Fix the second case by guarding the cleanup\nwith a NULL check, since alloc_ordered_workqueue() can still fail\nunder low memory."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/vmwgfx/vmwgfx_vkms.c"], "versions": [{"version": "7b0062036c3b71b4a69e244ecf0502c06c4cf5f0", "lessThan": "7c701778c6a369769992614dac8dc00c8ac72afc", "status": "affected", "versionType": "git"}, {"version": "7b0062036c3b71b4a69e244ecf0502c06c4cf5f0", "lessThan": "96efee36453b697ccbaf75091b7a1807c11809dd", "status": "affected", "versionType": "git"}, {"version": "7b0062036c3b71b4a69e244ecf0502c06c4cf5f0", "lessThan": "0ee0532f1d405d37f38c44cbba87342e63d3bbd4", "status": "affected", "versionType": "git"}, {"version": "7b0062036c3b71b4a69e244ecf0502c06c4cf5f0", "lessThan": "05eaa887e7b4f40fba425f8a1d7a5a8a043092a6", "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/gpu/drm/vmwgfx/vmwgfx_vkms.c"], "versions": [{"version": "6.10", "status": "affected"}, {"version": "0", "lessThan": "6.10", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.103", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.44", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.8", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc6", "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": "6.10", "versionEndExcluding": "6.12.103"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "6.18.44"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "7.1.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "7.2-rc6"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/7c701778c6a369769992614dac8dc00c8ac72afc"}, {"url": "https://git.kernel.org/stable/c/96efee36453b697ccbaf75091b7a1807c11809dd"}, {"url": "https://git.kernel.org/stable/c/0ee0532f1d405d37f38c44cbba87342e63d3bbd4"}, {"url": "https://git.kernel.org/stable/c/05eaa887e7b4f40fba425f8a1d7a5a8a043092a6"}], "title": "drm/vmwgfx: avoid destroy_workqueue(NULL) on vkms init failure", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/gpu/drm/vmwgfx/vmwgfx_vkms.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "7c701778c6a369769992614dac8dc00c8ac72afc", "status": "affected", "version": "7b0062036c3b71b4a69e244ecf0502c06c4cf5f0", "versionType": "git"}, {"lessThan": "96efee36453b697ccbaf75091b7a1807c11809dd", "status": "affected", "version": "7b0062036c3b71b4a69e244ecf0502c06c4cf5f0", "versionType": "git"}, {"lessThan": "0ee0532f1d405d37f38c44cbba87342e63d3bbd4", "status": "affected", "version": "7b0062036c3b71b4a69e244ecf0502c06c4cf5f0", "versionType": "git"}, {"lessThan": "05eaa887e7b4f40fba425f8a1d7a5a8a043092a6", "status": "affected", "version": "7b0062036c3b71b4a69e244ecf0502c06c4cf5f0", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/gpu/drm/vmwgfx/vmwgfx_vkms.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.10"}, {"lessThan": "6.10", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.103", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.44", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.8", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2-rc6", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vmwgfx: avoid destroy_workqueue(NULL) on vkms init failure\n\nTwo paths through vmw_vkms_init() can leave vmw->crc_workq NULL while\nstill leaving the rest of the driver in a state that calls\nvmw_vkms_cleanup() at module unload:\n\n 1. vmw_host_get_guestinfo(GUESTINFO_VBLANK, ...) failing or\n returning an oversized buffer -- the common case on hosts\n without a VBLANK guestinfo entry -- early-returned before the\n workqueue allocation.\n 2. alloc_ordered_workqueue() returning NULL on memory pressure.\n\nvmw_vkms_cleanup() then calls destroy_workqueue(NULL), which\ndereferences wq->name and panics.\n\nFix the first case by removing the early return: vmw->vkms_enabled\nis already false on the rpci-failure path so no work will ever be\nqueued, and allocating the workqueue unconditionally keeps the\ncontrol flow simple. Fix the second case by guarding the cleanup\nwith a NULL check, since alloc_ordered_workqueue() can still fail\nunder low memory."}], "id": "CVE-2026-74442", "lastModified": "2026-08-15T13:17:48.760", "metrics": {}, "published": "2026-08-15T13:17:48.760", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/05eaa887e7b4f40fba425f8a1d7a5a8a043092a6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0ee0532f1d405d37f38c44cbba87342e63d3bbd4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7c701778c6a369769992614dac8dc00c8ac72afc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/96efee36453b697ccbaf75091b7a1807c11809dd"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{}