CVE-2026-98178: Linux kernel · drm/amdgpu: Skip KFD mapping clear before initialization
Affects Linux kernelSource CVE Database V5
Not known to be exploited : upgrade to 157d3f1db7e7e6f320daa221fae84a4c13555b6f or 7f9caa70aef0950e06d395ca0035831214d88187 when convenient.
Data as of 26 Oct 2026, 12:55 UTC
Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 157d3f1db7e7e6f320daa221fae84a4c13555b6f, 7f9caa70aef0950e06d395ca0035831214d88187
Exploitation evidence
Disclosed: evidence found.
CVE published 6 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 2026.
What to do
Upgrade Linux kernel to 157d3f1db7e7e6f320daa221fae84a4c13555b6f or 7f9caa70aef0950e06d395ca0035831214d88187.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in– |
AI-suggested
The issue has been fixed in the Linux kernel versions identified by commits 157d3f1db7e7e6f320daa221fae84a4c13555b6f and 7f9caa70aef0950e06d395ca0035831214d88187. Users should update to these fixed versions or later to remediate the vulnerability.
Description
A vulnerability in the Linux kernel's AMDGPU driver involves improper handling of KFD device initialization. Specifically, the function amdgpu_amdkfd_clear_kfd_mapping() assumes a fully populated node array, which may not be true if KFD device initialization fails after probe. This can lead to dereferencing a null pointer during GPU reset on certain systems. The issue has been fixed by requiring an authoritative KFD initialization flag before accessing the node array.