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| author | David Disseldorp <ddiss@suse.de> | 2019-09-12 12:55:45 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-04 21:12:39 +0300 |
| commit | c6fcc4927ce36fb01ef9f352722a99b18b024533 (patch) | |
| tree | 377f07386d69cccc097bcd047e3b26a22d6d178f /drivers/target | |
| parent | c4986e473435a2b1b5825848e087c1df5be1964a (diff) | |
| download | linux-c6fcc4927ce36fb01ef9f352722a99b18b024533.tar.xz | |
scsi: target: compare full CHAP_A Algorithm strings
[ Upstream commit 9cef2a7955f2754257a7cddedec16edae7b587d0 ]
RFC 2307 states:
For CHAP [RFC1994], in the first step, the initiator MUST send:
CHAP_A=<A1,A2...>
Where A1,A2... are proposed algorithms, in order of preference.
...
For the Algorithm, as stated in [RFC1994], one value is required to
be implemented:
5 (CHAP with MD5)
LIO currently checks for this value by only comparing a single byte in
the tokenized Algorithm string, which means that any value starting with
a '5' (e.g. "55") is interpreted as "CHAP with MD5". Fix this by
comparing the entire tokenized string.
Reviewed-by: Lee Duncan <lduncan@suse.com>
Reviewed-by: Mike Christie <mchristi@redhat.com>
Signed-off-by: David Disseldorp <ddiss@suse.de>
Link: https://lore.kernel.org/r/20190912095547.22427-2-ddiss@suse.de
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/target')
| -rw-r--r-- | drivers/target/iscsi/iscsi_target_auth.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/target/iscsi/iscsi_target_auth.c b/drivers/target/iscsi/iscsi_target_auth.c index e2fa3a3bc81d..b6bf605fa5c1 100644 --- a/drivers/target/iscsi/iscsi_target_auth.c +++ b/drivers/target/iscsi/iscsi_target_auth.c @@ -78,7 +78,7 @@ static int chap_check_algorithm(const char *a_str) if (!token) goto out; - if (!strncmp(token, "5", 1)) { + if (!strcmp(token, "5")) { pr_debug("Selected MD5 Algorithm\n"); kfree(orig); return CHAP_DIGEST_MD5; |