HighFix available

drm/amdkfd: fix list_del corruption in kfd_criu_resume_svm

Type: advisorySources: OSV

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: fix list_del corruption in kfd_criu_resume_svm The cleanup tail of kfd_criu_resume_svm() walks svms->criu_svm_metadata_list and kfree()s each struct criu_svm_metadata without removing it from the list. The list head is left pointing at freed kmalloc-96 objects. A second AMDKFD_IOC_CRIU_OP from the same process re-enters: list_empty() reads the dangling ->next (use-after-free), the loop walks freed entries, and each is kfree()'d again (double-free). This is reachable by an unprivileged render-group user via /dev/kfd with no capabilities required. Add list_del() before the kfree() so the list is properly emptied. The list_for_each_entry_safe() iterator already caches the next pointer, so unlinking during the walk is safe. (cherry picked from commit 6322d278a298e2c1430b9d2697743d3a04b788b1)

Products: Kernel
Affected versions: Not specified
Fixed versions: 6.1.178, 6.12.97, 6.18.40, 6.6.145, 7.1.5
CVEs: CVE-2026-72449
Confirmed fixed CVEs: Not specified
Updated in this feed: 3 Nov 2026, 14:28 UTC · Revision 1

Source evidence

drm/amdkfd: fix list_del corruption in kfd_criu_resume_svm

core-osv · Original source

Published 15 Aug 2026, 05:56 UTC

osv:CVE-2026-72449

Kernel

Fixed versions: 6.1.178, 6.6.145, 6.12.97, 6.18.40, 7.1.5

Complete source record

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  "url": "https://osv.dev/vulnerability/CVE-2026-72449",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "drm/amdkfd: fix list_del corruption in kfd_criu_resume_svm",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: fix list_del corruption in kfd_criu_resume_svm The cleanup tail of kfd_criu_resume_svm() walks svms->criu_svm_metadata_list and kfree()s each struct criu_svm_metadata without removing it from the list. The list head is left pointing at freed kmalloc-96 objects. A second AMDKFD_IOC_CRIU_OP from the same process re-enters: list_empty() reads the dangling ->next (use-after-free), the loop walks freed entries, and each is kfree()'d again (double-free). This is reachable by an unprivileged render-group user via /dev/kfd with no capabilities required. Add list_del() before the kfree() so the list is properly emptied. The list_for_each_entry_safe() iterator already caches the next pointer, so unlinking during the walk is safe. (cherry picked from commit 6322d278a298e2c1430b9d2697743d3a04b788b1)",
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      "modified": "2026-10-28T02:30:29.505617283Z",
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  "source_id": "core-osv",
  "document_id": 496395,
  "published_at": "2026-08-15T05:56:58.313+00:00"
}