CVE-2025-68309
In the Linux kernel, the following vulnerability has been resolved: PCI/AER: Fix NULL pointer access by aer_info The kzalloc(GFP_KERNEL) may return NULL, so all accesses to aer_info->xxx will result in kernel panic. Fix it.
Affected versions
Linux kernel versions
6.16
and later are affected. Fixed in
6.17.8,
6.18
and their respective stable series.
References
The following references provide additional information about CVE-2025-68309 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/0a27bdb14b028fed30a10cec2f945c38cb5ca4fa
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PatchKernel patch commithttps://git.kernel.org/stable/c/6618243bcc3f60825f761a41ed65fef9fe97eb25
Frequently asked questions
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What is CVE-2025-68309?
CVE-2025-68309 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.16 onward and has been patched in 6.17.8 and 6.18. CVE-2025-68309 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-2025-68309?
Yes — CVE-2025-68309 has been patched. Fixed versions include 6.17.8 and 6.18. If you are running Linux kernel 6.16 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2025-68309 actively exploited?
No — CVE-2025-68309 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.