[PATCH] gigaset: correct range checking off by one error
in [Kernel]
|
Prev: [PATCH] exit: fix oops in sync_mm_rss
Next: [PATCH 05/14] tracing: move __start_ftrace_events and __stop_ftrace_events to header file
From: Tilman Schmidt on 16 Mar 2010 13:30 Correct a potential array overrun due to an off by one error in the range check on the CAPI CONNECT_REQ CIPValue parameter. Found and reported by Dan Carpenter using smatch. Impact: bugfix Signed-off-by: Tilman Schmidt <tilman(a)imap.cc> --- drivers/isdn/gigaset/capi.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/isdn/gigaset/capi.c b/drivers/isdn/gigaset/capi.c index 4a31962..0220c19 100644 --- a/drivers/isdn/gigaset/capi.c +++ b/drivers/isdn/gigaset/capi.c @@ -1301,7 +1301,7 @@ static void do_connect_req(struct gigaset_capi_ctr *iif, } /* check parameter: CIP Value */ - if (cmsg->CIPValue > ARRAY_SIZE(cip2bchlc) || + if (cmsg->CIPValue >= ARRAY_SIZE(cip2bchlc) || (cmsg->CIPValue > 0 && cip2bchlc[cmsg->CIPValue].bc == NULL)) { dev_notice(cs->dev, "%s: unknown CIP value %d\n", "CONNECT_REQ", cmsg->CIPValue); -- 1.6.5.3.298.g39add -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |