[gnutls-devel] GnuTLS | clang ASAN fails on testcompat-tls13-openssl.sh (#920)

[Development of GNU's TLS library]

Tim Rühsen commented:


BTW
```
Checking TLS 1.3 with Ed448 certificate...
curve448/cnd-copy.c:46:10: runtime error: negation of 1 cannot be represented in type 'mp_limb_t' (aka 'unsigned long')
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior curve448/cnd-copy.c:46:10 in 
curve448/sec-tabselect.c:58:24: runtime error: negation of 1 cannot be represented in type 'mp_limb_t' (aka 'unsigned long')
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior curve448/sec-tabselect.c:58:24 in 
curve448/sec-tabselect.c:56:38: runtime error: unsigned integer overflow: 0 - 1 cannot be represented in type 'unsigned int'
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior curve448/sec-tabselect.c:56:38 in 
curve448/ecc-curve448.c:99:14: runtime error: unsigned integer overflow: 4294967296 + 18446744069414584320 cannot be represented in type 'unsigned long'
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior curve448/ecc-curve448.c:99:14 in 
curve448/ecc-mul-g-eh.c:64:16: runtime error: unsigned integer overflow: 0 - 1 cannot be represented in type 'unsigned int'
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior curve448/ecc-mul-g-eh.c:64:16 in 
```

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