CVE-2026-74357: Linux kernel · drm/amdgpu: fix KASAN slab-out-of-bounds in amdgpu_coredump ring dump
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 7.8 High.
Data as of 9 Nov 2026, 14:02 UTC
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 15 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 9 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 24.04 LTSlinux-aws-6.14pkg:deb/ubuntu/linux-aws-6.14?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSlinux-aws-6.17pkg:deb/ubuntu/linux-aws-6.17?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSlinux-azure-6.11pkg:deb/ubuntu/linux-azure-6.11?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSlinux-azure-6.14pkg:deb/ubuntu/linux-azure-6.14?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSlinux-azure-6.17pkg:deb/ubuntu/linux-azure-6.17?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSlinux-azure-fde-6.14pkg:deb/ubuntu/linux-azure-fde-6.14?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fix is available that adds a boundary check to prevent out-of-bounds writes in the amdgpu_coredump function. Users should apply the updated Linux kernel versions that include this patch. No additional mitigations are indicated by the vendor advisory.
Description
CVE-2026-74357 is a high-severity vulnerability in the Linux kernel's AMDGPU driver. It involves a race condition in the amdgpu_coredump ring dump function where concurrent updates to fence signalling cause an out-of-bounds write in kernel memory. This flaw can lead to memory corruption during GPU reset operations triggered by specific test workloads. The issue was fixed by adding a boundary check to prevent writing beyond allocated buffers.
References
- ubuntu.com/security/CVE-2026-74357 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-74357 (opens in a new tab)
- git.kernel.org/linus/08ac3a7879d300302a1927ce2038629539a37f8b (opens in a new tab)
- git.kernel.org/stable/c/08ac3a7879d300302a1927ce2038629539a37f8b (opens in a new tab)
- git.kernel.org/stable/c/efb1dadaeb897b22b9e118d398d0f41e70e9ccca (opens in a new tab)