Date: Mon, 17 Aug 2020 21:30:15 +0000 (UTC) From: Mark Johnston <markj@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r364328 - head/sys/compat/linux Message-ID: <202008172130.07HLUFl8076859@repo.freebsd.org>
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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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