Florian Weimer 217b6dc298 Fix use of __pthread_attr_copy in mq_notify (bug 27896) ...

__pthread_attr_copy can fail and does not initialize the attribute
structure in that case.

If __pthread_attr_copy is never called and there is no allocated
attribute, pthread_attr_destroy should not be called, otherwise
there is a null pointer dereference in rt/tst-mqueue6.

Fixes commit 42d3593505
("Use __pthread_attr_copy in mq_notify (bug 27896)").

Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>

2021-06-02 07:12:18 +02:00

7.9 KiB

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