CVE-2026-90029
In the Linux kernel, the following vulnerability has been resolved: usb: storage: realtek_cr: fix use-after-free on disconnect realtek_cr_destructor() calls timer_delete() before the chip containing the timer is freed. The timer callback may still be running and can rearm itself, resulting in a use-after-free. Use timer_shutdown_sync() to wait for the callback and prevent further rearming. Do this unconditionally because ss_en may be changed after the timer is armed. Move timer_setup() into init_realtek_cr() so the timer is initialized before any failure path can invoke the destructor. Found by static analysis.
Affected versions
Linux kernel versions
3.1
and later are affected. Fixed in
6.12.112,
6.18.51,
7.2.5,
7.3-rc2
and their respective stable series.
References
4 totalFrequently asked questions
-
What is CVE-2026-90029?
CVE-2026-90029 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 3.1 onward and has been patched in 6.12.112, 6.18.51, 7.2.5 and others. CVE-2026-90029 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
-
Is there a patch available for CVE-2026-90029?
Yes. CVE-2026-90029 has been patched. Fixed versions include 6.12.112, 6.18.51, 7.2.5 and others. If you are running Linux kernel 3.1 or later up to the fix versions, apply the relevant patch for your kernel branch.
-
Is CVE-2026-90029 actively exploited?
No. CVE-2026-90029 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.