diff options
| author | Luís Ferreira <contact@lsferreira.net> | 2021-09-23 11:54:00 -0400 |
|---|---|---|
| committer | Jeff Law <jeffreyalaw@gmail.com> | 2021-09-23 11:54:00 -0400 |
| commit | b3585c0836e729bed56b9afd4292177673a25ca0 (patch) | |
| tree | c0df980cedac78eca6069c9ccb657abdc4565f03 /libiberty | |
| parent | 5481040197402be6dfee265bd2ff5a4c88e30505 (diff) | |
| download | gcc-b3585c0836e729bed56b9afd4292177673a25ca0.tar.gz | |
libiberty: prevent null dereferencing on dlang_type
libiberty/
* d-demangle.c (dlang_Type): Validate MANGLED is nonnull.
* testsuite/d-demangle-expected: New test.
Diffstat (limited to 'libiberty')
| -rw-r--r-- | libiberty/d-demangle.c | 2 | ||||
| -rw-r--r-- | libiberty/testsuite/d-demangle-expected | 5 |
2 files changed, 5 insertions, 2 deletions
diff --git a/libiberty/d-demangle.c b/libiberty/d-demangle.c index 7ded3e2a256..3adf7b562d1 100644 --- a/libiberty/d-demangle.c +++ b/libiberty/d-demangle.c @@ -875,7 +875,7 @@ dlang_type (string *decl, const char *mangled, struct dlang_info *info) szmods = string_length (&mods); /* Back referenced function type. */ - if (*mangled == 'Q') + if (mangled && *mangled == 'Q') mangled = dlang_type_backref (decl, mangled, info, 1); else mangled = dlang_function_type (decl, mangled, info); diff --git a/libiberty/testsuite/d-demangle-expected b/libiberty/testsuite/d-demangle-expected index c35185c3e1e..799f4724b72 100644 --- a/libiberty/testsuite/d-demangle-expected +++ b/libiberty/testsuite/d-demangle-expected @@ -991,11 +991,14 @@ _D88 _D5__T1aZv _D5__T1aZv # ---format=dlang _D00 _D00 # --format=dlang +_D01_D +_D01_D +# +--format=dlang _D9223372036854775817 _D9223372036854775817 # |