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| author | Kaz Kylheku <kaz@kylheku.com> | 2017-02-20 07:10:13 -0800 |
|---|---|---|
| committer | Kaz Kylheku <kaz@kylheku.com> | 2017-02-20 07:10:13 -0800 |
| commit | 633d1a10a7509e052571ea3db6f44157e6620326 (patch) | |
| tree | 15fdb00ef1899801b80e6b341c344fbfe159fc87 /sysif.c | |
| parent | 1251a804e742ddb4963af5d48213d20358ee639a (diff) | |
| download | txr-633d1a10a7509e052571ea3db6f44157e6620326.tar.gz txr-633d1a10a7509e052571ea3db6f44157e6620326.tar.bz2 txr-633d1a10a7509e052571ea3db6f44157e6620326.zip | |
Fix lack of robustness in struct module.
The symbolp test is too weak before calling lookup_slot,
because nil satisfies it, but lookup_slot dereferences
the symbol pointer to access its slot cache.
One of many test cases: parsing #S(time nil nil) segfaults.
* struct.c (slot, maybe_slot, slotset, uslot_fun, umethod_fun,
umethod_args_fun): Check that sym isn't nil before looking it
up as a slot.
Diffstat (limited to 'sysif.c')
0 files changed, 0 insertions, 0 deletions