{"id":"CVE-2024-49876","url":"https://www.cyber-defence.io/tools/cve/CVE-2024-49876","generatedAt":"2026-10-28T03:27:17.201Z","title":"In the Linux kernel, the following vulnerability has been resolved: drm/xe: fix UAF around queue destruction We currently do stuff like queuing the final destruction step on a random system wq, which will outlive the driver instance.","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe: fix UAF around queue destruction\n\nWe currently do stuff like queuing the final destruction step on a\nrandom system wq, which will outlive the driver instance. With bad\ntiming we can teardown the driver with one or more work workqueue still\nbeing alive leading to various UAF splats. Add a fini step to ensure\nuser queues are properly torn down. At this point GuC should already be\nnuked so queue itself should no longer be referenced from hw pov.\n\nv2 (Matt B)\n - Looks much safer to use a waitqueue and then just wait for the\n   xa_array to become empty before triggering the drain.\n\n(cherry picked from commit 861108666cc0e999cffeab6aff17b662e68774e3)","published":"2024-10-21T18:15:09.000Z","lastModified":"2026-08-04T11:20:55.000Z","status":"Modified","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":{"version":"3.1","score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-416"],"affected":["linux/linux kernel"],"epss":{"score":0.00244,"percentile":0.15464,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.24%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://git.kernel.org/stable/c/272b0e78874586d6ccae04079d75b27b47705544","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/2d2be279f1ca9e7288282d4214f16eea8a727cdb","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/421c74670b0f9d5c007f1276d3647aa58f407fde","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2024-49876","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}