CVE-2026-43206
In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix out-of-bounds write in kfd_event_page_set() The kfd_event_page_set() function writes KFD_SIGNAL_EVENT_LIMIT * 8 bytes via memset without checking the buffer size…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.14%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix out-of-bounds write in kfd_event_page_set() The kfd_event_page_set() function writes KFD_SIGNAL_EVENT_LIMIT * 8 bytes via memset without checking the buffer size parameter. This allows unprivileged userspace to trigger an out-of bounds kernel memory write by passing a small buffer, leading to potential privilege escalation.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.14% probability · 4th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/3e04bc310d80b46eaf481f1fefcbcb37a187412dPatch
- https://git.kernel.org/stable/c/4857c37c7ba9aa38b9a4c694e8bd8d0091c87940Patch
- https://git.kernel.org/stable/c/4e72f419e4ed44cb3b60506752d8688c20a60a9bPatch
- https://git.kernel.org/stable/c/75fb57efdd7863fffbc39db23e9cad7aafda26edPatch
- https://git.kernel.org/stable/c/8a70a26c9f34baea6c3199a9862ddaff4554a96dPatch
- https://git.kernel.org/stable/c/b4034442cb090e4a980bdcc1540948606cbc951bPatch
- https://git.kernel.org/stable/c/bfcd6b53e1f4feb182952f4ff9a137c36ceaf20bPatch
- https://git.kernel.org/stable/c/de8d7a25cd2eb5875b1d8d4fbc7fe4b4138b781fPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.