CVE-2026-97946
In the Linux kernel, the following vulnerability has been resolved: x86/amd_node: Fix PCI device reference counting in amd_smn_init() The local "root" pointer is a temporary variable used during the device search. Therefore, refcount related to the search iterators should be cleaned up after the search is complete. Use the __free() cleanup macro to ensure the refcount is decremented when the temporary pointer goes out of scope. Additionally, increment the refcount when caching a root pointer. This ensures the in-use refcount is separate from the temporary search refcounting. Finally, drop the redundant "root = NULL" before the second search loop. The pci_get_class() iterator always decrements the refcount of its "from" argument, so the first loop can only fall through with "root" already NULL.
Affected versions
Linux kernel versions
6.17.8,
6.18
and later are affected. Fixed in
6.18.53,
7.2.7,
7.3-rc4
and their respective stable series.
References
3 totalFrequently asked questions
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What is CVE-2026-97946?
CVE-2026-97946 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.17.8 onward and has been patched in 6.18.53, 7.2.7 and 7.3-rc4. CVE-2026-97946 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-2026-97946?
Yes. CVE-2026-97946 has been patched. Fixed versions include 6.18.53, 7.2.7 and 7.3-rc4. If you are running Linux kernel 6.17.8 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-97946 actively exploited?
No. CVE-2026-97946 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.