CVE-2021-47324
May 21, 2024, 4:54 p.m.
Tags
Product(s) Impacted
Linux kernel
Description
In the Linux kernel, the following vulnerability has been resolved: watchdog: Fix possible use-after-free in wdt_startup() This module's remove path calls del_timer(). However, that function does not wait until the timer handler finishes. This means that the timer handler may still be running after the driver's remove function has finished, which would result in a use-after-free. Fix by calling del_timer_sync(), which makes sure the timer handler has finished, and unable to re-schedule itself.
Weaknesses
Date
Published: May 21, 2024, 3:15 p.m.
Last Modified: May 21, 2024, 4:54 p.m.
Status : Awaiting Analysis
CVE has been recently published to the CVE List and has been received by the NVD.
More infoSource
416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
https://git.kernel.org/
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/
416baaa9-dc9f-4396-8d5f-8c081fb06d67