CVE-2026-98758
Description
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.
How to fix
- Linux Linux432b58cd959e594909a581b4974396cdbc9d4ca1, 41934f92e7a54d4080ac0b17aacc83224946785c, ee8577de01c6b6c7dd1d76b52242c54d37a989f4, 63b269ec537dc0fd26d0bd64872c26860d108c9d or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 62b5412b1f4afab27d8df90ddcabb8e1e11a00ad ≤ v < 432b58cd959e594909a581b4974396cdbc9d4ca1, 62b5412b1f4afab27d8df90ddcabb8e1e11a00ad ≤ v < 41934f92e7a54d4080ac0b17aacc83224946785c, 62b5412b1f4afab27d8df90ddcabb8e1e11a00ad ≤ v < ee8577de01c6b6c7dd1d76b52242c54d37a989f4, 62b5412b1f4afab27d8df90ddcabb8e1e11a00ad ≤ v < 63b269ec537dc0fd26d0bd64872c26860d108c9d, 6.4 | 432b58cd959e594909a581b4974396cdbc9d4ca1, 41934f92e7a54d4080ac0b17aacc83224946785c, ee8577de01c6b6c7dd1d76b52242c54d37a989f4, 63b269ec537dc0fd26d0bd64872c26860d108c9d |
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