poll: fix thread_cancel() caused poll used after free #11811
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@liguiding Please rebase to the last master which fix the ci broken. |
Signed-off-by: ligd <liguiding1@xiaomi.com>
pthread 0 pthread1
fd 0
poll_setup
wait
cancel(thread 0)
fd 0 close
fd 0 notify (sem used after free)
poll_teardown
Signed-off-by: ligd <liguiding1@xiaomi.com>
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@GUIDINGLI Is CONFIG_PTHREAD_CLEANUP_STACKSIZE->CONFIG_TLS_NCLEANUP going to break everyone's out of repo code? |
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Summary
poll: fix thread_cancel() caused poll used after free
Resolve:
Use pthread_cleanup / tls_cleanup to fix this
Impact
POLL
Testing
SIM