Module Name: src
Committed By: rillig
Date: Tue May 31 00:35:18 UTC 2022
Modified Files:
src/tests/usr.bin/xlint/lint1: d_gcc_compound_statements1.c
d_gcc_compound_statements1.exp msg_249.c msg_249.exp
src/usr.bin/xlint/lint1: decl.c
Log Message:
lint: fix null pointer dereference after syntax error
Found by afl, starting with the malformed input '/**/f=({;/**/};}' that
no longer crashes. This input led to 'f=({L:;}', which is at least a
syntactically valid prefix of a translation unit, containing a GCC
statement expression with an unused label. The error message for this
unused label assumed that it would always be inside a function
definition.
While here, document incomplete recovery after syntax errors, in
msg_249.c.
To generate a diff of this commit:
cvs rdiff -u -r1.9 -r1.10 \
src/tests/usr.bin/xlint/lint1/d_gcc_compound_statements1.c \
src/tests/usr.bin/xlint/lint1/msg_249.c
cvs rdiff -u -r1.4 -r1.5 \
src/tests/usr.bin/xlint/lint1/d_gcc_compound_statements1.exp
cvs rdiff -u -r1.7 -r1.8 src/tests/usr.bin/xlint/lint1/msg_249.exp
cvs rdiff -u -r1.282 -r1.283 src/usr.bin/xlint/lint1/decl.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
