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| author | Konstantin Belousov <kib@FreeBSD.org> | 2010-02-14 13:59:01 +0000 |
|---|---|---|
| committer | Konstantin Belousov <kib@FreeBSD.org> | 2010-02-14 13:59:01 +0000 |
| commit | d07dc8e3eb912532f7bf67586eebc512b0be58ca (patch) | |
| tree | cca285c556526bbebc3d15516da4d88fd66218f2 /sys/kern/kern_event.c | |
| parent | 75fb535394c804bc6b115496754b0c87787223f9 (diff) | |
| download | src-d07dc8e3eb912532f7bf67586eebc512b0be58ca.tar.gz src-d07dc8e3eb912532f7bf67586eebc512b0be58ca.zip | |
Do not leak process lock when current thread is not allowed to see target.
Bumped into by: ed
MFC after: 3 days
Notes
Notes:
svn path=/head/; revision=203875
Diffstat (limited to 'sys/kern/kern_event.c')
| -rw-r--r-- | sys/kern/kern_event.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/kern/kern_event.c b/sys/kern/kern_event.c index 0ba6c818e924..cb418fb09b85 100644 --- a/sys/kern/kern_event.c +++ b/sys/kern/kern_event.c @@ -349,8 +349,10 @@ filt_procattach(struct knote *kn) if (p == NULL) return (ESRCH); - if ((error = p_cansee(curthread, p))) + if ((error = p_cansee(curthread, p))) { + PROC_UNLOCK(p); return (error); + } kn->kn_ptr.p_proc = p; kn->kn_flags |= EV_CLEAR; /* automatically set */ |