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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2019-05-06 15:50:18 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-27 14:50:48 +0100 |
| commit | 9245e019e53c29b4af8efd7536c5366fc1f0e7a5 (patch) | |
| tree | 65830c4d520beaaeeccae9ca341a92b96cf2ac2c /include/uapi | |
| parent | 69ca8d1b93760995ea00a250d2d034fa1dd7461a (diff) | |
kdb: do a sanity check on the cpu in kdb_per_cpu()
[ Upstream commit b586627e10f57ee3aa8f0cfab0d6f7dc4ae63760 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/uapi')
0 files changed, 0 insertions, 0 deletions