CVE-2026-98758
In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: glink: fix use-after-free of ucsi on remove The pmic_glink client is released by the devres cleanup, which runs after pmic_glink_ucsi_remove() has returned, so its notification callbacks can queue work until then. Work that runs after ucsi_unregister() has been called touches freed state: it dereferences the connector array that ucsi_unregister() freed, or registers and unregisters the instance a second time. Disable both work items with disable_work_sync() before unregistering, and unregister only if the instance is still registered. This issue was found by an in-house static analysis tool.
Affected versions
Linux kernel versions
6.4
and later are affected. Fixed in
6.12.113,
6.18.56,
7.2.10,
7.3
and their respective stable series.
References
4 totalFrequently asked questions
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What is CVE-2026-98758?
CVE-2026-98758 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.4 onward and has been patched in 6.12.113, 6.18.56, 7.2.10 and others. CVE-2026-98758 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-2026-98758?
Yes. CVE-2026-98758 has been patched. Fixed versions include 6.12.113, 6.18.56, 7.2.10 and others. If you are running Linux kernel 6.4 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-98758 actively exploited?
No. CVE-2026-98758 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.