{"id":"CVE-2026-74448","summary":"drm/amdkfd: fix QID bit leak in pqm_create_queue()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: fix QID bit leak in pqm_create_queue()\n\nWhen MES is enabled and amdgpu_amdkfd_alloc_kernel_mem() fails during\nthe first queue creation for a process, pqm_create_queue() returns\nearly via 'return retval' without going through the err_create_queue\ncleanup label.\n\nThis means clear_bit(*qid, pqm-\u003equeue_slot_bitmap) is never called,\nleaving the reserved QID bit permanently set in queue_slot_bitmap.\nOver time this leaks QID slots, potentially exhausting all available\nqueue slots.\n\nFix this by replacing 'return retval' with 'goto err_allocate_pqn'\nso that clear_bit() is always called on the error path without\ntouching the uninitialized pqn pointer.\n\nAILIKFD-813\n\n(cherry picked from commit a107f74c38edbb80d6ab64dcaeeb292c14e9779f)","modified":"2026-10-08T02:48:06.066605684Z","published":"2026-08-15T12:26:53.915Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74448.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/2ff5bb3645c72b3690e70c513a62a86600c4632f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/38b73293f38658a4685ffcea666462024f858ad9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5f0f2ddeac738e2ca9d12cb76a1ff2904e85ecc3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7c35bf94150d872e670a6632aa819d320279effb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8924e2594a15bdbd07f8696770864366d787ab70"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74448.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74448"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0f88894aa628680747ae27760e5f627f901a435f"},{"fixed":"8924e2594a15bdbd07f8696770864366d787ab70"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"c0ef1c8ef70bfa3487ea84f794d7a1f0fea0735d"},{"fixed":"2ff5bb3645c72b3690e70c513a62a86600c4632f"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"fddc45026311c05a5355fd34b9dc0a1d7eaef4a2"},{"fixed":"5f0f2ddeac738e2ca9d12cb76a1ff2904e85ecc3"},{"fixed":"7c35bf94150d872e670a6632aa819d320279effb"},{"fixed":"38b73293f38658a4685ffcea666462024f858ad9"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.6.87"},{"fixed":"6.6.151"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.12.23"},{"fixed":"6.12.103"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.13.11"},{"fixed":"6.14"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.14.2"},{"fixed":"6.15"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"9d61e2b81f5fc90c87975879809346e7c90ea5f9"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"d86ba913bbfd1afafacbfb750001ffc6bfe29da0"}]}],"versions":["v6.6.150","v6.6.149","v6.6.148","v6.6.147","v6.6.146","v6.6.145","v6.6.144","v6.6.143","v6.6.142","v6.6.141","v6.6.140","v6.6.139","v6.6.138","v6.6.137","v6.6.136","v6.6.135","v6.6.134","v6.6.133","v6.6.132","v6.6.131","v6.6.130","v6.6.129","v6.6.128","v6.6.127","v6.6.126","v6.6.125","v6.6.124","v6.6.123","v6.6.122","v6.6.121","v6.6.120","v6.6.119","v6.6.118","v6.6.117","v6.6.116","v6.6.115","v6.6.114","v6.6.113","v6.6.112","v6.6.111","v6.6.110","v6.6.109","v6.6.108","v6.6.107","v6.6.106","v6.6.105","v6.6.104","v6.6.103","v6.6.102","v6.6.101","v6.6.100","v6.6.99","v6.6.98","v6.6.97","v6.6.96","v6.6.95","v6.6.94","v6.6.93","v6.6.92","v6.6.91","v6.6.90","v6.6.89","v6.6.88","v6.6.87","v6.12.102","v6.12.101","v6.12.100","v6.12.99","v6.12.98","v6.12.97","v6.12.96","v6.12.95","v6.12.94","v6.12.93","v6.12.92","v6.12.91","v6.12.90","v6.12.89","v6.12.88","v6.12.87","v6.12.86","v6.12.85","v6.12.84","v6.12.83","v6.12.82","v6.12.81","v6.12.80","v6.12.79","v6.12.78","v6.12.77","v6.12.76","v6.12.75","v6.12.74","v6.12.73","v6.12.72","v6.12.71","v6.12.70","v6.12.69","v6.12.68","v6.12.67","v6.12.66","v6.12.65","v6.12.64","v6.12.63","v6.12.62","v6.12.61","v6.12.60","v6.12.59","v6.12.58","v6.12.57","v6.12.56","v6.12.55","v6.12.54","v6.12.53","v6.12.52","v6.12.51","v6.12.50","v6.12.49","v6.12.48","v6.12.47","v6.12.46","v6.12.45","v6.12.44","v6.12.43","v6.12.42","v6.12.41","v6.12.40","v6.12.39","v6.12.38","v6.12.37","v6.12.36","v6.12.35","v6.12.34","v6.12.33","v6.12.32","v6.12.31","v6.12.30","v6.12.29","v6.12.28","v6.12.27","v6.12.26","v6.12.25","v6.12.24","v6.12.23","v6.13.12","v6.13.11","v6.14.11","v6.14.10","v6.14.9","v6.14.8","v6.14.7","v6.14.6","v6.14.5","v6.14.4","v6.14.3","v6.14.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74448.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.6.151"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.103"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.44"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.15.0"},{"fixed":"7.1.8"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74448.j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