Upstream's email address bounced, I tried sending a message though Sourceforge...
On Wed, May 13, 2015 at 1:40 PM, Peter De Wachter <pdewa...@gmail.com> wrote: > Hi Hugh, > > As you might remember, some years ago I packages SDL Asylum for Debian. > Yesterday I received a bug report that the game crashes at the end of the > second level. I recompiled the game with "-fsanitize=address,undefined" > which discovered a stray pointer in the collision detection code, seemingly > always involving the alien2 function. This seems a likely cause for random > crashes... A typical backtrace looks like this: > > ==29192==ERROR: AddressSanitizer: heap-buffer-overflow on address > 0x7f1eceab9647 at pc 0x40f2d9 bp 0x7fffa1788110 sp 0x7fffa1788108 > READ of size 1 at 0x7f1eceab9647 thread T0 > #0 0x40f2d8 in albcheck(alent*) > /home/pdewacht/asylum/asylum-0.3.2/alien.c:1554 > #1 0x41a26b in alien2(alent*) > /home/pdewacht/asylum/asylum-0.3.2/alien.c:353 > #2 0x4215df in moval() /home/pdewacht/asylum/asylum-0.3.2/alien.c:102 > #3 0x4230ad in game() /home/pdewacht/asylum/asylum-0.3.2/asylum.c:168 > #4 0x4235c4 in init() /home/pdewacht/asylum/asylum-0.3.2/asylum.c:89 > #5 0x402d83 in main /home/pdewacht/asylum/asylum-0.3.2/asylum.c:488 > #6 0x7f1edf2a0b44 in __libc_start_main > (/lib/x86_64-linux-gnu/libc.so.6+0x21b44) > #7 0x402f24 (/home/pdewacht/asylum/asylum-0.3.2/asylum+0x402f24) > > 0x7f1eceab9647 is located 441 bytes to the left of 147456-byte region > [0x7f1eceab9800,0x7f1eceadd800) > allocated by thread T0 here: > #0 0x7f1ee15a674f in malloc > (/usr/lib/x86_64-linux-gnu/libasan.so.1+0x5474f) > #1 0x428e32 in loadhammered(char**, char*, char*) > /home/pdewacht/asylum/asylum-0.3.2/file.c:167 > > Both the original submitter and I found some other problems, patches for > which are attached. They're probably not related to the crash the submitter > experienced though. > > Best regards, > Peter De Wachter >