{"apiVersion":"1.0","identifier":"CVE-2026-74442","description":"In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: avoid destroy_workqueue(NULL) on vkms init failure Two paths through vmw_vkms_init() can leave vmw->crc_workq NULL while still leaving the rest of the driver in a state that calls vmw_vkms_cleanup() at module unload: 1. vmw_host_get_guestinfo(GUESTINFO_VBLANK, ...) failing or returning an oversized buffer -- the common case on hosts without a VBLANK guestinfo entry -- early-returned before the workqueue allocation. 2. alloc_ordered_workqueue() returning NULL on memory pressure. vmw_vkms_cleanup() then calls destroy_workqueue(NULL), which dereferences wq->name and panics. Fix the first case by removing the early return: vmw->vkms_enabled is already false on the rpci-failure path so no work will ever be queued, and allocating the workqueue unconditionally keeps the control flow simple. Fix the second case by guarding the cleanup with a NULL check, since alloc_ordered_workqueue() can still fail under low memory.","publishedAt":"2026-08-15T13:17:48","lastModifiedAt":"2026-08-17T06:19:39","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-74442","cvssScore":null,"cvssVector":"Pending","epssProbability":0.00168,"riskScore":0,"affectedProduct":"Linux kernel","affectedVersions":"unknown","vulnerabilityType":"Kernel","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-74442","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-74442","en":"https://www.redsauce.net/en/cves/CVE-2026-74442","fr":"https://www.redsauce.net/fr/cves/CVE-2026-74442","pt":"https://www.redsauce.net/pt/cves/CVE-2026-74442","de":"https://www.redsauce.net/de/cves/CVE-2026-74442","sk":"https://www.redsauce.net/sk/cves/CVE-2026-74442","el":"https://www.redsauce.net/el/cves/CVE-2026-74442"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-74442"}}