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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2019-04-03 08:34:16 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-27 14:46:30 +0100 |
| commit | 0d5d07b98b7dbfa0b87c02b5925498d5fd667993 (patch) | |
| tree | b2c1896296f82bee319862fa71ec96d8c221d7fd /arch/s390/kernel/smp.c | |
| parent | 62ca24f153245509e1278c8fe62b6ec01f8a3739 (diff) | |
| download | linux-rt-0d5d07b98b7dbfa0b87c02b5925498d5fd667993.tar.gz | |
6lowpan: Off by one handling ->nexthdr
[ Upstream commit f57c4bbf34439531adccd7d3a4ecc14f409c1399 ]
NEXTHDR_MAX is 255. What happens here is that we take a u8 value
"hdr->nexthdr" from the network and then look it up in
lowpan_nexthdr_nhcs[]. The problem is that if hdr->nexthdr is 0xff then
we read one element beyond the end of the array so the array needs to
be one element larger.
Fixes: 92aa7c65d295 ("6lowpan: add generic nhc layer interface")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Acked-by: Alexander Aring <aring@mojatatu.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/s390/kernel/smp.c')
0 files changed, 0 insertions, 0 deletions