GHSA-6WMM-RQ3J-5C47
Vulnerability from github – Published: 2026-06-25 09:31 – Updated: 2026-06-25 09:31In the Linux kernel, the following vulnerability has been resolved:
drm/amdkfd: fix NULL dereference in get_queue_ids()
When usr_queue_id_array is NULL and num_queues is non-zero, get_queue_ids() returns NULL. The callers check only IS_ERR() on the return value; since IS_ERR(NULL) == false the check passes, and suspend_queues() calls q_array_invalidate() which immediately dereferences NULL while iterating num_queues times.
Userspace can trigger this via kfd_ioctl_set_debug_trap() by supplying num_queues > 0 with a zero queue_array_ptr, causing a kernel panic.
A NULL usr_queue_id_array with num_queues == 0 is a legitimate no-op (q_array_invalidate never executes, and resume_queues already guards all queue_ids dereferences behind a NULL check). Return ERR_PTR(-EINVAL) only when num_queues is non-zero and the pointer is absent; both callers already propagate IS_ERR() returns correctly to userspace.
(cherry picked from commit f165a82cdf503884bb1797771c61b2fcc72113d4)
{
"affected": [],
"aliases": [
"CVE-2026-53144"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-25T09:16:31Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: fix NULL dereference in get_queue_ids()\n\nWhen usr_queue_id_array is NULL and num_queues is non-zero,\nget_queue_ids() returns NULL. The callers check only IS_ERR() on the\nreturn value; since IS_ERR(NULL) == false the check passes, and\nsuspend_queues() calls q_array_invalidate() which immediately\ndereferences NULL while iterating num_queues times.\n\nUserspace can trigger this via kfd_ioctl_set_debug_trap() by supplying\nnum_queues \u003e 0 with a zero queue_array_ptr, causing a kernel panic.\n\nA NULL usr_queue_id_array with num_queues == 0 is a legitimate no-op\n(q_array_invalidate never executes, and resume_queues already guards\nall queue_ids dereferences behind a NULL check). Return ERR_PTR(-EINVAL)\nonly when num_queues is non-zero and the pointer is absent; both callers\nalready propagate IS_ERR() returns correctly to userspace.\n\n(cherry picked from commit f165a82cdf503884bb1797771c61b2fcc72113d4)",
"id": "GHSA-6wmm-rq3j-5c47",
"modified": "2026-06-25T09:31:19Z",
"published": "2026-06-25T09:31:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53144"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2bd550b547deabef98bd3b017ff743b7c34d3a6d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/62bd09e23a23da70f9aae02748eba3e6bd93095d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/72e259a32084c42816152c346096d2edd4213e23"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/daeceb0fe2a19651c58bbfa3d9d515ecb6ca8996"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e1965e8913cfbf17622ca12638e7a07f68ba0848"
}
],
"schema_version": "1.4.0",
"severity": []
}
Sightings
| Author | Source | Type | Date | Other |
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Nomenclature
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