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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2018-06-20 13:41:51 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-08-24 13:09:03 +0200 |
| commit | 6d2b87505f7a59b464a59e1d0870aa26d0b1f0e1 (patch) | |
| tree | ba2d71108d1e225c27795c660e4420d3bb2eff51 | |
| parent | 955887c1fe90a2be056358001fd4920614a0f8b6 (diff) | |
| download | linux-6d2b87505f7a59b464a59e1d0870aa26d0b1f0e1.tar.gz | |
block: sed-opal: Fix a couple off by one bugs
[ Upstream commit ce042c183bcb94eb2919e8036473a1fc203420f9 ]
resp->num is the number of tokens in resp->tok[]. It gets set in
response_parse(). So if n == resp->num then we're reading beyond the
end of the data.
Fixes: 455a7b238cd6 ("block: Add Sed-opal library")
Reviewed-by: Scott Bauer <scott.bauer@intel.com>
Tested-by: Scott Bauer <scott.bauer@intel.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | block/sed-opal.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/block/sed-opal.c b/block/sed-opal.c index 9ed51d0c6b1d17..4f5e70d4abc3cd 100644 --- a/block/sed-opal.c +++ b/block/sed-opal.c @@ -877,7 +877,7 @@ static size_t response_get_string(const struct parsed_resp *resp, int n, return 0; } - if (n > resp->num) { + if (n >= resp->num) { pr_debug("Response has %d tokens. Can't access %d\n", resp->num, n); return 0; @@ -899,7 +899,7 @@ static u64 response_get_u64(const struct parsed_resp *resp, int n) return 0; } - if (n > resp->num) { + if (n >= resp->num) { pr_debug("Response has %d tokens. Can't access %d\n", resp->num, n); return 0; |