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| author | Michal Marek <mmarek@suse.com> | 2017-01-03 14:40:44 +0100 |
|---|---|---|
| committer | Michal Marek <mmarek@suse.com> | 2017-01-05 13:00:54 +0100 |
| commit | d920f7c6628c63a390009c237fb80a203c2e400a (patch) | |
| tree | 439964a9707355942a7896255624f97739800075 /scripts/genksyms | |
| parent | 7ce7d89f48834cefece7804d38fc5d85382edf77 (diff) | |
| download | linux-0-day-d920f7c6628c63a390009c237fb80a203c2e400a.tar.gz linux-0-day-d920f7c6628c63a390009c237fb80a203c2e400a.tar.xz | |
genksyms: Fix segfault with invalid declarations
Do not try to recover too early and segfault when parsing invalid
declarations such as
echo 'int (int);' | scripts/genksyms/genksyms
echo 'int a, (int);' | scripts/genksyms/genksyms
echo 'extern void *__inline_memcpy((void *), (const void *), (__kernel_size_t));' | scripts/genksyms/genksyms
The last one was a real-life bug with
include/asm-generic/asm-prototypes.h on x86_64.
Reported-and-tested-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Michal Marek <mmarek@suse.com>
Diffstat (limited to 'scripts/genksyms')
| -rw-r--r-- | scripts/genksyms/parse.y | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/scripts/genksyms/parse.y b/scripts/genksyms/parse.y index 4fba255e54ae4..00a6d7e549712 100644 --- a/scripts/genksyms/parse.y +++ b/scripts/genksyms/parse.y @@ -322,8 +322,6 @@ direct_declarator: { $$ = $2; } | '(' declarator ')' { $$ = $3; } - | '(' error ')' - { $$ = $3; } ; /* Nested declarators differ from regular declarators in that they do |