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config: Do not access negative indexes of seen array

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Signed-off-by: Jakub Jelen <jjelen@redhat.com>
(cherry picked from commit 6848c23d84)
This commit is contained in:
Jakub Jelen
2018-08-16 10:25:46 +02:00
committed by Andreas Schneider
parent 0cad2778b4
commit 5869345899
1 changed files with 2 additions and 1 deletions
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src/config.c
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@@ -383,7 +383,8 @@ static int ssh_config_parse_line(ssh_session session, const char *line,
} }
opcode = ssh_config_get_opcode(keyword); opcode = ssh_config_get_opcode(keyword);
if (*parsing == 1 && opcode != SOC_HOST && opcode != SOC_UNSUPPORTED && opcode != SOC_INCLUDE) { if (*parsing == 1 && opcode != SOC_HOST && opcode != SOC_INCLUDE &&
opcode > SOC_UNSUPPORTED) { /* Ignore all unknown types here */
if (seen[opcode] != 0) { if (seen[opcode] != 0) {
SAFE_FREE(x); SAFE_FREE(x);
return 0; return 0;