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| author | kib <kib@FreeBSD.org> | 2010-07-04 18:16:17 +0000 |
|---|---|---|
| committer | kib <kib@FreeBSD.org> | 2010-07-04 18:16:17 +0000 |
| commit | 4de7ec3dbbe45af222a8e20d116f56a05b09b0ea (patch) | |
| tree | 920b25d4add0b968df5187480443470df3f27d3f | |
| parent | 5758b8c344de54ad9c4d7eba693a0ce23e0e3a90 (diff) | |
| download | FreeBSD-src-4de7ec3dbbe45af222a8e20d116f56a05b09b0ea.zip FreeBSD-src-4de7ec3dbbe45af222a8e20d116f56a05b09b0ea.tar.gz | |
Obey sv_syscallnames bounds in syscallname().
Reported and tested by: pho
| -rw-r--r-- | sys/kern/subr_trap.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/sys/kern/subr_trap.c b/sys/kern/subr_trap.c index ee23726..6a97779 100644 --- a/sys/kern/subr_trap.c +++ b/sys/kern/subr_trap.c @@ -245,10 +245,12 @@ const char * syscallname(struct proc *p, u_int code) { static const char unknown[] = "unknown"; + struct sysentvec *sv; - if (p->p_sysent->sv_syscallnames == NULL) + sv = p->p_sysent; + if (sv->sv_syscallnames == NULL || code >= sv->sv_size) return (unknown); - return (p->p_sysent->sv_syscallnames[code]); + return (sv->sv_syscallnames[code]); } int |
