CVE-2026-23221
In the Linux kernel, the following vulnerability has been resolved:
bus: fsl-mc: fix use-after-free in driver_override_show()
The driver_override_show() function reads the driver_override string
without holding the device_lock. However, driver_override_store() uses
driver_set_override(), which modifies and frees the string while holding
the device_lock.
This can result in a concurrent use-after-free if the string is freed
by the store function while being read by the show function.
Fix this by holding the device_lock around the read operation.
bus: fsl-mc: fix use-after-free in driver_override_show()
The driver_override_show() function reads the driver_override string
without holding the device_lock. However, driver_override_store() uses
driver_set_override(), which modifies and frees the string while holding
the device_lock.
This can result in a concurrent use-after-free if the string is freed
by the store function while being read by the show function.
Fix this by holding the device_lock around the read operation.
Vendor
Product
CWE
Yayın Tarihi
2026-02-18 16:22:31
Güncelleme
2026-03-18 14:50:04
Source Identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
KEV Date Added
-
Kategoriler
Referanslar
https://git.kernel.org/stable/c/148891e95014b5dc5878acefa57f1940c281c431
https://git.kernel.org/stable/c/1d6bd6183e723a7b256ff34bbb5b498b5f4f2ec0
https://git.kernel.org/stable/c/a2ae33e1c6361e960a4d00f7cf75d880b54f9528
https://git.kernel.org/stable/c/b1983840287303e0dfb401b1b6cecc5ea7471e90
https://git.kernel.org/stable/c/c424e72cfa67e7e1477035058a8a659f2c0ea637
https://git.kernel.org/stable/c/c71dfb7833db7af652ee8f65011f14c97c47405d
https://git.kernel.org/stable/c/dd8ba8c0c3f3916d4ee1e3a09da9cd5caff5d227