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Vulnerability Details CVE-2021-47357

In the Linux kernel, the following vulnerability has been resolved: atm: iphase: fix possible use-after-free in ia_module_exit() 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 1.0%
CVSS Severity
CVSS v3 Score 7.8
References
Products affected by CVE-2021-47357


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