CVE-2026-98178
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Skip KFD mapping clear before initialization amdgpu_amdkfd_clear_kfd_mapping() assumes that a non-NULL kfd_dev has a fully populated node array. This is not true when KFD device initialization fails after probe. For example, kgd2kfd_device_init() sets num_nodes before checking PCIe atomics support. On Polaris systems without the required atomics, it returns before allocating nodes[0], but the kfd_dev remains attached to the amdgpu device. A later GPU reset then dereferences nodes[0]->id. Require the authoritative KFD initialization flag before walking the node array, matching the existing KFD reset and teardown paths. (cherry picked from commit 4ac1835823c47903fbb278bbf474773c46f59edc)
Affected versions
Linux kernel versions
7.2
and later are affected. Fixed in
7.2.8,
7.3-rc4
and their respective stable series.
References
2 totalFrequently asked questions
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What is CVE-2026-98178?
CVE-2026-98178 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 7.2 onward and has been patched in 7.2.8 and 7.3-rc4. CVE-2026-98178 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-98178?
Yes. CVE-2026-98178 has been patched. Fixed versions include 7.2.8 and 7.3-rc4. If you are running Linux kernel 7.2 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-98178 actively exploited?
No. CVE-2026-98178 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.