CVE-2026-74450

HIGH 7.8 ALL-YEARS

Published 2026-08-15 · Last modified 2026-10-16 · Linux · NVD: Received

In the Linux kernel, the following vulnerability has been resolved: drm/amd/pm: fix pptable use-after-free amdgpu_dpm_get_pp_table() returns a pointer to a driver-owned power table after dropping adev->pm.mutex. The sysfs path then copies from that pointer. A concurrent pp_table write can replace and free the allocation during the copy, causing a use-after-free. Change the DPM interface to copy into caller-provided storage while the mutex is held. Keep the size-only query for attribute discovery without exposing the driver-owned pointer. (cherry picked from commit f6eed7acfd30099ef7baeb6ba45bb59daad80631)

ELEVATED IMPACT

Severe if exploited (CVSS 7.8), but no confirmed exploitation. Patch on a normal cadence.

Exploitation likelihood

0.1%chance of exploitation in 30 days · 2nd percentile

○ In CISA KEV○ Catalogued PoC◆ SSVC: exploitation none, automatable no

Impact if exploited

7.8CVSS 3.1 · HIGH · CNA

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

What an attacker needs

⚠Access: Requires local access to the host
⚠Privileges: Requires a low-privilege account
✓User interaction: No user interaction needed
✓Complexity: No special conditions — reliably repeatable

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept

No public PoC is currently catalogued.

Search for new PoCs

Search GitHub now — results may be empty or unverified.

Tracked sources are checked weekly for the full archive, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.

Affected

Vendors Linux

Products Linux

Weakness (CWE)

Not classified.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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
Red Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
kernel-core as a component of Red Hat Enterprise Linux 10 · known affected

Vendor assessment for this product only.

pkg:rpm/redhat/kernel-core
- none available: Fix deferred
Red Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
kernel-rt-64k as a component of Red Hat Enterprise Linux 10 · known affected

Vendor assessment for this product only.

pkg:rpm/redhat/kernel-rt-64k
- none available: Fix deferred
Red Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
kernel-rt-debug-kvm as a component of Red Hat Enterprise Linux 10 · known affected

Vendor assessment for this product only.

pkg:rpm/redhat/kernel-rt-debug-kvm
- none available: Fix deferred
Red Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
kernel-zfcpdump-devel as a component of Red Hat Enterprise Linux 10 · known affected

Vendor assessment for this product only.

pkg:rpm/redhat/kernel-zfcpdump-devel
- none available: Fix deferred
Red Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
kernel-doc as a component of Red Hat Enterprise Linux 6 · known affected

Vendor assessment for this product only.

pkg:rpm/redhat/kernel-doc
- no fix planned: Out of support scope
Red Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
kernel-debug-devel as a component of Red Hat Enterprise Linux 8 · known affected

Vendor assessment for this product only.

pkg:rpm/redhat/kernel-debug-devel
- none available: Fix deferred
Red Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
kernel-rt-debug-kvm as a component of Red Hat Enterprise Linux 8 · known affected

Vendor assessment for this product only.

pkg:rpm/redhat/kernel-rt-debug-kvm
- none available: Fix deferred
Red Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
kernel-zfcpdump-devel as a component of Red Hat Enterprise Linux 8 · known affected

Vendor assessment for this product only.

pkg:rpm/redhat/kernel-zfcpdump-devel
- none available: Fix deferred
Red Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
kernel-64k-debug-modules-core as a component of Red Hat Enterprise Linux 9 · known affected

Vendor assessment for this product only.

pkg:rpm/redhat/kernel-64k-debug-modules-core
- none available: Fix deferred
Red Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
kernel-debug-devel as a component of Red Hat Enterprise Linux 9 · known affected

Vendor assessment for this product only.

pkg:rpm/redhat/kernel-debug-devel
- none available: Fix deferred
Red Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
kernel-modules-internal as a component of Red Hat Enterprise Linux 9 · known affected

Vendor assessment for this product only.

pkg:rpm/redhat/kernel-modules-internal
- none available: Fix deferred
Red Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
kernel-rt-64k-devel-matched as a component of Red Hat Enterprise Linux 9 · known affected

Vendor assessment for this product only.

pkg:rpm/redhat/kernel-rt-64k-devel-matched
- none available: Fix deferred
Red Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
kernel-rt-debug-modules-internal as a component of Red Hat Enterprise Linux 9 · known affected

Vendor assessment for this product only.

pkg:rpm/redhat/kernel-rt-debug-modules-internal
- none available: Fix deferred
Red Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
kernel-uki-virt-addons as a component of Red Hat Enterprise Linux 9 · known affected

Vendor assessment for this product only.

pkg:rpm/redhat/kernel-uki-virt-addons
- none available: Fix deferred
Red Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
rv as a component of Red Hat Enterprise Linux 9 · known affected

Vendor assessment for this product only.

pkg:rpm/redhat/rv
- none available: Fix deferred
Red Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
bpftool as a component of Red Hat Enterprise Linux 7 · known not affected

Vendor assessment for this product only.
Reason: vulnerable code not present

pkg:rpm/redhat/bpftool
Red Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
kernel-abi-whitelists as a component of Red Hat Enterprise Linux 7 · known not affected

Vendor assessment for this product only.
Reason: vulnerable code not present

pkg:rpm/redhat/kernel-abi-whitelists
Red Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
kernel-debug as a component of Red Hat Enterprise Linux 7 · known not affected

Vendor assessment for this product only.
Reason: vulnerable code not present

pkg:rpm/redhat/kernel-debug
Red Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
kernel-debug-devel as a component of Red Hat Enterprise Linux 7 · known not affected

Vendor assessment for this product only.
Reason: vulnerable code not present

pkg:rpm/redhat/kernel-debug-devel
Red Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
kernel-doc as a component of Red Hat Enterprise Linux 7 · known not affected

Vendor assessment for this product only.
Reason: vulnerable code not present

pkg:rpm/redhat/kernel-doc
Red Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
kernel-kdump as a component of Red Hat Enterprise Linux 7 · known not affected

Vendor assessment for this product only.
Reason: vulnerable code not present

pkg:rpm/redhat/kernel-kdump
Red Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
kernel-rt as a component of Red Hat Enterprise Linux 7 · known not affected

Vendor assessment for this product only.
Reason: vulnerable code not present

pkg:rpm/redhat/kernel-rt
Red Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
kernel-rt-debug-devel as a component of Red Hat Enterprise Linux 7 · known not affected

Vendor assessment for this product only.
Reason: vulnerable code not present

pkg:rpm/redhat/kernel-rt-debug-devel
Red Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
kernel-rt-debug-kvm as a component of Red Hat Enterprise Linux 7 · known not affected

Vendor assessment for this product only.
Reason: vulnerable code not present

pkg:rpm/redhat/kernel-rt-debug-kvm
Red Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
kernel-rt-doc as a component of Red Hat Enterprise Linux 7 · known not affected

Vendor assessment for this product only.
Reason: vulnerable code not present

pkg:rpm/redhat/kernel-rt-doc
Red Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
kernel-rt-trace as a component of Red Hat Enterprise Linux 7 · known not affected

Vendor assessment for this product only.
Reason: vulnerable code not present

pkg:rpm/redhat/kernel-rt-trace
Red Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
kernel-rt-trace-kvm as a component of Red Hat Enterprise Linux 7 · known not affected

Vendor assessment for this product only.
Reason: vulnerable code not present

pkg:rpm/redhat/kernel-rt-trace-kvm
Red Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
kernel-tools as a component of Red Hat Enterprise Linux 7 · known not affected

Vendor assessment for this product only.
Reason: vulnerable code not present

pkg:rpm/redhat/kernel-tools
Red Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
kernel-tools-libs as a component of Red Hat Enterprise Linux 7 · known not affected

Vendor assessment for this product only.
Reason: vulnerable code not present

pkg:rpm/redhat/kernel-tools-libs
Red Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
kernel.src as a component of Red Hat Enterprise Linux 7 · known not affected

Vendor assessment for this product only.
Reason: vulnerable code not present

pkg:rpm/redhat/kernel?arch=src
Red Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
python-perf as a component of Red Hat Enterprise Linux 7 · known not affected

Vendor assessment for this product only.
Reason: vulnerable code not present

pkg:rpm/redhat/python-perf
Red Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00

All CVSS metrics

HIGH 7.8 v3.1 · CNA Primary
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
HIGH 7.8 v3.1 · NVD Secondary
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Advisories

https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-74450.json vendor-advisoryRed Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-59643 ADVISORYEUVD · EUVD-2026-59643

Technical & other

https://git.kernel.org/stable/c/3fbb3ac75000e3187f500a91a4099b24206866a1CVE record · Linux · Updated 2026-08-23T12:47:19.009Z
NVD · CVE-2026-74450 · Updated 2026-10-16T20:17:28.693
https://git.kernel.org/stable/c/9efc767335234cf7a892e46d45cd453b711421e7CVE record · Linux · Updated 2026-08-23T12:47:19.009Z
NVD · CVE-2026-74450 · Updated 2026-10-16T20:17:28.693
https://git.kernel.org/stable/c/81b5af1fb0f14cace6c3b3130a05e5602a597820CVE record · Linux · Updated 2026-08-23T12:47:19.009Z
NVD · CVE-2026-74450 · Updated 2026-10-16T20:17:28.693
https://git.kernel.org/stable/c/8c685df5c3b261c42505110965b42f9a754eb9b7CVE record · Linux · Updated 2026-08-23T12:47:19.009Z
NVD · CVE-2026-74450 · Updated 2026-10-16T20:17:28.693
https://git.kernel.org/stable/c/b628f2c6feb3a115ea72d3120a2bd94afc5163dfCVE record · Linux · Updated 2026-08-23T12:47:19.009Z
NVD · CVE-2026-74450 · Updated 2026-10-16T20:17:28.693
https://git.kernel.org/stable/c/bb493058c35c8676e48269ab6732688ea733d23cCVE record · Linux · Updated 2026-08-23T12:47:19.009Z
NVD · CVE-2026-74450 · Updated 2026-10-16T20:17:28.693
https://access.redhat.com/security/cve/CVE-2026-74450 vendor-referenceRed Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
https://bugzilla.redhat.com/show_bug.cgi?id=2517062 vendor-referenceRed Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
https://www.cve.org/CVERecord?id=CVE-2026-74450 vendor-referenceRed Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
https://nvd.nist.gov/vuln/detail/CVE-2026-74450 vendor-referenceRed Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00
https://lore.kernel.org/linux-cve-announce/2026081530-CVE-2026-74450-c478@gregkh/T vendor-referenceRed Hat · CVE-2026-74450 · Updated 2026-08-19T17:41:41+00:00

Sources: NVD · CVE.org · All sources and attribution · EPSS