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Bug #870482
gcc9 -O3: caravan ‘data.result’ may be used uninitialized
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Description
Seen on S3_0 and S2_6 (master not affected) when building with gcc9, -O3 optimization level:
../../../../src/common/aicore/caravan.c: In function ‘caravan_evaluate’:
../../../../src/common/aicore/caravan.c:588:25: error: ‘data.result’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
588 | fc_assert_ret_val(data->result, FALSE);
History
#1
Updated by Marko Lindqvist about 2 years ago
Marko Lindqvist wrote:
Seen on S3_0 and S2_6 (master not affected) when building with gcc9, -O3 optimization level:
Compiler might not give warning in master, but there's a real bug there that is present in master too.
caravan_evaluate_withtransit() does not set result pointer to callback data, so result can never be set in the callback. Thus caravan_evaluate_withtransit() always only initializes result.
#2
Updated by Marko Lindqvist about 2 years ago
- File 0025-Fix-caravan_evaluate_withtransit-result-setting.patch 0025-Fix-caravan_evaluate_withtransit-result-setting.patch added
- Status changed from New to Resolved
#3
Updated by Marko Lindqvist about 2 years ago
- Status changed from Resolved to Closed
- Assignee set to Marko Lindqvist
.