CVE-2026-93077
In the Linux kernel, the following vulnerability has been resolved: cxl/features: Clamp Get Feature output size to the remaining buffer cxl_get_feature() reads a feature in a loop but passes a fixed size_out as the output capacity every iteration. On the last partial iteration the buffer has less room left, so a device that returns more than asked can overflow feat_out. Use the per-iter size data_to_rd_size, which already tracks the remaining room, as the output capacity.
Affected versions
Linux kernel versions
6.15
and later are affected. Fixed in
6.18.52,
7.2.6,
7.3-rc1
and their respective stable series.
References
3 totalFrequently asked questions
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What is CVE-2026-93077?
CVE-2026-93077 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.15 onward and has been patched in 6.18.52, 7.2.6 and 7.3-rc1. CVE-2026-93077 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-2026-93077?
Yes. CVE-2026-93077 has been patched. Fixed versions include 6.18.52, 7.2.6 and 7.3-rc1. If you are running Linux kernel 6.15 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-93077 actively exploited?
No. CVE-2026-93077 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.