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varlink: don't panic on malformed method definition

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This commit is contained in:
Frantisek Sumsal 2023-10-12 15:55:12 +02:00
parent 13de7c7e66
commit 779e7b4410
2 changed files with 12 additions and 0 deletions
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12
src/shared/varlink-idl.c
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@ -986,6 +986,9 @@ int varlink_idl_parse(
assert(!symbol);
n_fields = 0;
if (!token)
return log_debug_errno(SYNTHETIC_ERRNO(EBADMSG), "%u:%u: Premature EOF.", *line, *column);
r = varlink_symbol_realloc(&symbol, n_fields);
if (r < 0)
return r;
@ -1004,6 +1007,9 @@ int varlink_idl_parse(
case STATE_METHOD_ARROW:
assert(symbol);
if (!token)
return log_debug_errno(SYNTHETIC_ERRNO(EBADMSG), "%u:%u: Premature EOF.", *line, *column);
if (!streq(token, "->"))
return log_debug_errno(SYNTHETIC_ERRNO(EBADMSG), "%u:%u: Unexpected token '%s'.", *line, *column, token);
@ -1025,6 +1031,9 @@ int varlink_idl_parse(
assert(!symbol);
n_fields = 0;
if (!token)
return log_debug_errno(SYNTHETIC_ERRNO(EBADMSG), "%u:%u: Premature EOF.", *line, *column);
r = varlink_symbol_realloc(&symbol, n_fields);
if (r < 0)
return r;
@ -1050,6 +1059,9 @@ int varlink_idl_parse(
assert(!symbol);
n_fields = 0;
if (!token)
return log_debug_errno(SYNTHETIC_ERRNO(EBADMSG), "%u:%u: Premature EOF.", *line, *column);
r = varlink_symbol_realloc(&symbol, n_fields);
if (r < 0)
return r;

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test/fuzz/fuzz-varlink-idl/crash-d1860f2b Normal file
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