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| author | John Keeping <john@keeping.me.uk> | 2014-01-12 16:49:40 +0000 |
|---|---|---|
| committer | Jason A. Donenfeld <Jason@zx2c4.com> | 2014-01-12 19:32:20 +0100 |
| commit | 382ecf152e1bd9546f6c84ace71c62ca07f6648b (patch) | |
| tree | b3a66c0bbab90bd5bd4abf20647c5203061099a8 /.gitmodules | |
| parent | filter: split filter functions into their own file (diff) | |
| download | cgit-pink-382ecf152e1bd9546f6c84ace71c62ca07f6648b.tar.gz cgit-pink-382ecf152e1bd9546f6c84ace71c62ca07f6648b.zip | |
cache: don't leave cache_slot fields uninitialized
Valgrind says: ==18344== Conditional jump or move depends on uninitialised value(s) ==18344== at 0x406C83: open_slot (cache.c:63) ==18344== by 0x407478: cache_ls (cache.c:403) ==18344== by 0x404C9A: process_request (cgit.c:639) ==18344== by 0x406BD2: fill_slot (cache.c:190) ==18344== by 0x4071A0: cache_process (cache.c:284) ==18344== by 0x404461: main (cgit.c:952) ==18344== Uninitialised value was created by a stack allocation ==18344== at 0x40738B: cache_ls (cache.c:375) This is caused by the keylen field being used to calculate whether or not a slot is matched. We never then check the value of this and the length of data read depends on the key length read from the file so this isn't dangerous, but it's nice to avoid branching based on uninitialized data. Signed-off-by: John Keeping <john@keeping.me.uk>
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