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CVE-2026-98758

usb: typec: ucsi: glink: fix use-after-free of ucsi on remove PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
Linux / Linuxaffected 62b5412b1f4afab27d8df90ddcabb8e1e11a00ad before 432b58cd959e594909a581b4974396cdbc9d4ca1; affected 62b5412b1f4afab27d8df90ddcabb8e1e11a00ad before 41934f92e7a54d4080ac0b17aacc83224946785c; affected 62b5412b1f4afab27d8df90ddcabb8e1e11a00ad before ee8577de01c6b6c7dd1d76b52242c54d37a989f4; affected 62b5412b1f4afab27d8df90ddcabb8e1e11a00ad before 63b269ec537dc0fd26d0bd64872c26860d108c9d
Linux / Linuxaffected 6.4; unaffected 0 before 6.4; unaffected 6.12.113 through 6.12.*; unaffected 6.18.56 through 6.18.*; unaffected 7.2.10 through 7.2.*; unaffected 7.3 through *

CWE

No CWE identifiers supplied.

References