CVE-2026-74450
In the Linux kernel, the following vulnerability has been resolved: drm/amd/pm: fix pptable…
- Risk score
- 62/100
- CVSS
- 7.8 v3.1
- Exploit chance (30 days)
- 0.1%
- Published
- 15 Aug 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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 allocati…
- Affected
- Canonical Ubuntu Linux
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Story map
At a glance
Canonical Ubuntu Linux: Red, act today. A vulnerability exists in NGINX Plus and NGINX Open Source when a map directive uses regex matching and the root directive or access log format references the map's regex capture variables before referencing the map output variable. An unauthenticated attacker can exploit this vulnerability by sending crafted HTTP requests, causing a heap buffer overflow in the NGINX worker process leading to a restart, or potential…
The flaws
- CVE-2026-74450: In the Linux kernel, the following vulnerability has been resolved: drm/amd/pm: fix pptable… (CVSS 7.8 · EPSS 0%)
- CVE-2026-93479: Heap buffer overflow can lead to remote code execution (CVSS 8.1 · EPSS 1%)
- CVE-2026-15176: Heap buffer overflow can lead to remote code execution (CVSS 8.1 · EPSS 1%)
- CVE-2026-97205: NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_core_module module (CVSS 8.1 · EPSS 1%)
The fix
Fix: Check the linked advisory for the concrete fix.
Who is exposed: {'products': ['NGINX Plus', 'NGINX Open Source'], 'packages': [], 'versions': []}
Where it stands
- No known exploitation
How it unfolded
- 26 Oct, Ubuntu security notices (official): USN-8955-1: nginx vulnerabilities
- 3 Nov, Ubuntu security notices (official): USN-8960-1: Linux kernel (OEM) vulnerabilities
- 3 Nov, Ubuntu security notices (official): USN-8959-1: Linux kernel vulnerabilities
Connects to
- Same weakness: Heap buffer overflow (CWE-122). 398 other warnings in 30 days
- Same product: Earlier Canonical Ubuntu Linux warnings. 96 in the last 90 days
Why it is Amber
- CVSS 7.8 high
- On your watchlist: linux kernel
- Named in a government or vendor bulletin
Government and vendor bulletins
References
- https://ubuntu.com/security/notices/USN-8959-1
- https://ubuntu.com/security/notices/USN-8960-1
- https://git.kernel.org/stable/c/3fbb3ac75000e3187f500a91a4099b24206866a1
- https://git.kernel.org/stable/c/81b5af1fb0f14cace6c3b3130a05e5602a597820
- https://git.kernel.org/stable/c/8c685df5c3b261c42505110965b42f9a754eb9b7
- https://git.kernel.org/stable/c/9efc767335234cf7a892e46d45cd453b711421e7
- https://git.kernel.org/stable/c/b628f2c6feb3a115ea72d3120a2bd94afc5163df
- https://git.kernel.org/stable/c/bb493058c35c8676e48269ab6732688ea733d23c
Original description
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)
Last activity 3 Nov 2026. Patch Forecast updates every hour.