Author: markj
Date: Mon Aug 17 21:30:15 2020
New Revision: 364328
URL: https://svnweb.freebsd.org/changeset/base/364328
Log:
Fix a lock leak when emulating futex(FUTEX_WAIT_BITSET).
Reported by: syzkaller
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Modified:
head/sys/compat/linux/linux_futex.c
Modified: head/sys/compat/linux/linux_futex.c
==============================================================================
--- head/sys/compat/linux/linux_futex.c Mon Aug 17 20:18:01 2020
(r364327)
+++ head/sys/compat/linux/linux_futex.c Mon Aug 17 21:30:15 2020
(r364328)
@@ -643,6 +643,7 @@ futex_wait(struct futex *f, struct waiting_proc *wp, s
if (bitset == 0) {
LIN_SDT_PROBE1(futex, futex_wait, return, EINVAL);
+ futex_put(f, wp);
return (EINVAL);
}
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