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| author |  Dan Carpenter <dan.carpenter@oracle.com>
| 2019-05-06 15:50:18 +0300 |
|---|---|---|
| committer |  Daniel Thompson <daniel.thompson@linaro.org>
| 2019-05-12 09:50:44 +0100 |
| commit | b586627e10f57ee3aa8f0cfab0d6f7dc4ae63760 (patch) | |
| tree | 179466e3716826e61ead28ece56e385e4b99b2b7 /kernel/debug/kdb/kdb_io.c | |
| parent | kdb: Get rid of broken attempt to print CCVERSION in kdb summary (diff) | |
| download | linux-b586627e10f57ee3aa8f0cfab0d6f7dc4ae63760.tar.gz linux-b586627e10f57ee3aa8f0cfab0d6f7dc4ae63760.tar.bz2 linux-b586627e10f57ee3aa8f0cfab0d6f7dc4ae63760.zip | |
kdb: do a sanity check on the cpu in kdb_per_cpu()
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: 5d5314d6795f ("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>
Diffstat (limited to 'kernel/debug/kdb/kdb_io.c')
0 files changed, 0 insertions, 0 deletions