Dan Carpenter 9245e019e5 kdb: do a sanity check on the cpu in kdb_per_cpu() ...

[ Upstream commit b586627e10 ]

The "whichcpu" comes from argv[3].  The cpu_online() macro looks up the
cpu in a bitmap of online cpus, but if the value is too high then it
could read beyond the end of the bitmap and possibly Oops.

Fixes: 5d5314d679 ("kdb: core for kgdb back end (1 of 2)")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2020-01-27 14:50:48 +01:00

..

kdb

kdb: do a sanity check on the cpu in kdb_per_cpu()

2020-01-27 14:50:48 +01:00

debug_core.c

kdb: Don't back trace on a cpu that didn't round up

2019-02-12 19:47:19 +01:00

debug_core.h

kgdb/kdb: Fix no KDB config problem

2014-01-25 08:55:09 +01:00

gdbstub.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>

2017-03-02 08:42:29 +01:00

Makefile

kdb: core for kgdb back end (1 of 2)

2010-05-20 21:04:20 -05:00