CVE-2026-74448
N/A ALL-YEARSIn the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: fix QID bit leak in pqm_create_queue() When MES is enabled and amdgpu_amdkfd_alloc_kernel_mem() fails during the first queue creation for a process, pqm_create_queue() returns early via 'return retval' without going through the err_create_queue cleanup label. This means clear_bit(*qid, pqm->queue_slot_bitmap) is never called, leaving the reserved QID bit permanently set in queue_slot_bitmap. Over time this leaks QID slots, potentially exhausting all available queue slots. Fix this by replacing 'return retval' with 'goto err_allocate_pqn' so that clear_bit() is always called on the error path without touching the uninitialized pqn pointer. AILIKFD-813 (cherry picked from commit a107f74c38edbb80d6ab64dcaeeb292c14e9779f)
No known exploitation, public exploit, or elevated probability at this time. Track for changes.
Exploitation likelihood
0.2%chance of exploitation in 30 days · 6th percentile
Impact if exploited
—CVSS · not scored
- No impact metrics
Proof of concept
No public PoC is currently catalogued.
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References and research data (JSON)
Vendor product assessments
Showing 32 of 274 vendor product statements; 242 omitted. Read the full vendor advisory.
kernel as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel
- none available: Fix deferred
kernel-64k-debug-modules-extra as a component of Red Hat Enterprise Linux 10 · known affected
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pkg:rpm/redhat/kernel-64k-debug-modules-extra
- none available: Fix deferred
kernel-debug-core as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-debug-core
- none available: Fix deferred
kernel-devel-matched as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-devel-matched
- none available: Fix deferred
kernel-rt-64k-debug as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-rt-64k-debug
- none available: Fix deferred
kernel-rt-64k-modules-extra as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-rt-64k-modules-extra
- none available: Fix deferred
kernel-rt-devel as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-rt-devel
- none available: Fix deferred
kernel-uki-virt-addons as a component of Red Hat Enterprise Linux 10 · known affected
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pkg:rpm/redhat/kernel-uki-virt-addons
- none available: Fix deferred
kernel.src as a component of Red Hat Enterprise Linux 10 · known affected
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pkg:rpm/redhat/kernel?arch=src
- none available: Fix deferred
kernel-debug as a component of Red Hat Enterprise Linux 6 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-debug
- no fix planned: Out of support scope
perf as a component of Red Hat Enterprise Linux 6 · known affected
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pkg:rpm/redhat/perf
- no fix planned: Out of support scope
kernel-doc as a component of Red Hat Enterprise Linux 7 · known affected
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pkg:rpm/redhat/kernel-doc
- none available: Fix deferred
kernel-rt-doc as a component of Red Hat Enterprise Linux 7 · known affected
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pkg:rpm/redhat/kernel-rt-doc
- none available: Fix deferred
kernel-tools-libs-devel as a component of Red Hat Enterprise Linux 7 · known affected
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pkg:rpm/redhat/kernel-tools-libs-devel
- none available: Fix deferred
kernel-cross-headers as a component of Red Hat Enterprise Linux 8 · known affected
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pkg:rpm/redhat/kernel-cross-headers
- none available: Fix deferred
kernel-headers as a component of Red Hat Enterprise Linux 8 · known affected
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pkg:rpm/redhat/kernel-headers
- none available: Fix deferred
kernel-rt-debug-devel as a component of Red Hat Enterprise Linux 8 · known affected
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pkg:rpm/redhat/kernel-rt-debug-devel
- none available: Fix deferred
kernel-rt-modules-internal as a component of Red Hat Enterprise Linux 8 · known affected
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pkg:rpm/redhat/kernel-rt-modules-internal
- none available: Fix deferred
kernel-zfcpdump-devel as a component of Red Hat Enterprise Linux 8 · known affected
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pkg:rpm/redhat/kernel-zfcpdump-devel
- none available: Fix deferred
kernel as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel
- none available: Fix deferred
kernel-64k-debug-modules-extra as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-64k-debug-modules-extra
- none available: Fix deferred
kernel-64k-modules-partner as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-64k-modules-partner
- none available: Fix deferred
kernel-debug-modules-core as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-debug-modules-core
- none available: Fix deferred
kernel-headers as a component of Red Hat Enterprise Linux 9 · known affected
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pkg:rpm/redhat/kernel-headers
- none available: Fix deferred
kernel-rt-64k as a component of Red Hat Enterprise Linux 9 · known affected
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pkg:rpm/redhat/kernel-rt-64k
- none available: Fix deferred
kernel-rt-64k-debug-modules-extra as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-rt-64k-debug-modules-extra
- none available: Fix deferred
kernel-rt-64k-modules-internal as a component of Red Hat Enterprise Linux 9 · known affected
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pkg:rpm/redhat/kernel-rt-64k-modules-internal
- none available: Fix deferred
kernel-rt-debug-modules-core as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-rt-debug-modules-core
- none available: Fix deferred
kernel-rt-modules-extra as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-rt-modules-extra
- none available: Fix deferred
kernel-tools-libs-devel as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-tools-libs-devel
- none available: Fix deferred
kernel-zfcpdump-modules-extra as a component of Red Hat Enterprise Linux 9 · known affected
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pkg:rpm/redhat/kernel-zfcpdump-modules-extra
- none available: Fix deferred
rv as a component of Red Hat Enterprise Linux 9 · known affected
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pkg:rpm/redhat/rv
- none available: Fix deferred
References
Advisories
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-74448.json Red Hat · CVE-2026-74448 · Updated 2026-08-19T05:25:32+00:00
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-59755 EUVD · EUVD-2026-59755
Technical & other
- https://git.kernel.org/stable/c/8924e2594a15bdbd07f8696770864366d787ab70CVE record · Linux · Updated 2026-08-18T06:56:34.583Z
NVD · CVE-2026-74448 · Updated 2026-08-18T07:16:54.720 - https://git.kernel.org/stable/c/2ff5bb3645c72b3690e70c513a62a86600c4632fCVE record · Linux · Updated 2026-08-18T06:56:34.583Z
NVD · CVE-2026-74448 · Updated 2026-08-18T07:16:54.720 - https://git.kernel.org/stable/c/5f0f2ddeac738e2ca9d12cb76a1ff2904e85ecc3CVE record · Linux · Updated 2026-08-18T06:56:34.583Z
NVD · CVE-2026-74448 · Updated 2026-08-18T07:16:54.720 - https://git.kernel.org/stable/c/7c35bf94150d872e670a6632aa819d320279effbCVE record · Linux · Updated 2026-08-18T06:56:34.583Z
NVD · CVE-2026-74448 · Updated 2026-08-18T07:16:54.720 - https://git.kernel.org/stable/c/38b73293f38658a4685ffcea666462024f858ad9CVE record · Linux · Updated 2026-08-18T06:56:34.583Z
NVD · CVE-2026-74448 · Updated 2026-08-18T07:16:54.720 - https://access.redhat.com/security/cve/CVE-2026-74448 Red Hat · CVE-2026-74448 · Updated 2026-08-19T05:25:32+00:00
- https://bugzilla.redhat.com/show_bug.cgi?id=2517082 Red Hat · CVE-2026-74448 · Updated 2026-08-19T05:25:32+00:00
- https://www.cve.org/CVERecord?id=CVE-2026-74448 Red Hat · CVE-2026-74448 · Updated 2026-08-19T05:25:32+00:00
- https://nvd.nist.gov/vuln/detail/CVE-2026-74448 Red Hat · CVE-2026-74448 · Updated 2026-08-19T05:25:32+00:00
- https://lore.kernel.org/linux-cve-announce/2026081530-CVE-2026-74448-5bd4@gregkh/T Red Hat · CVE-2026-74448 · Updated 2026-08-19T05:25:32+00:00
Sources: NVD · CVE.org · All sources and attribution · EPSS