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chrdev sample module triggers "free active" warning in debug mode #203

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TheSven73 opened this issue Apr 17, 2021 · 1 comment
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chrdev sample module triggers "free active" warning in debug mode #203

TheSven73 opened this issue Apr 17, 2021 · 1 comment
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• drivers Related to the example drivers in `drivers/`.

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@TheSven73
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In debug mode, the chrdev sample module triggers a "free active" warning. Which probably points to a potential use-after-free issue.

This happens on every supported architecture, and is visible in the CI logs.

[   48.194412] ------------[ cut here ]------------
[   48.195307] ODEBUG: free active (active state 0) object type: timer_list hint: delayed_work_timer_fn+0x0/0x40
[   48.198373] WARNING: CPU: 0 PID: 38 at lib/debugobjects.c:508 debug_print_object+0xbf/0xe0
[   48.200944] Modules linked in: rust_chrdev(-) [last unloaded: rust_sync]
@ojeda ojeda added prio: high • drivers Related to the example drivers in `drivers/`. labels Apr 17, 2021
@TheSven73 TheSven73 mentioned this issue Apr 19, 2021
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@alex
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alex commented May 12, 2021

fixed by #207

@alex alex closed this as completed May 12, 2021
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• drivers Related to the example drivers in `drivers/`.
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@alex @TheSven73 @ojeda