http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55505
Bug #: 55505 Summary: gcc.c-torture/execute/921202-1.c execution failures with -fsanitize=address Classification: Unclassified Product: gcc Version: 4.8.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: sanitizer AssignedTo: unassig...@gcc.gnu.org ReportedBy: howa...@nitro.med.uc.edu CC: do...@gcc.gnu.org, dvyu...@gcc.gnu.org, ja...@gcc.gnu.org, k...@gcc.gnu.org Using... make -k check-gcc RUNTESTFLAGS="--target_board=unix'{-fsanitize=address}'" on x86_64-apple-darwin12 produces execution failures in... FAIL: gcc.c-torture/execute/921202-1.c execution, -O0 FAIL: gcc.c-torture/execute/921202-1.c execution, -Og -g which are of the form... Executing on host: /sw/src/fink.build/gcc48-4.8.0-1000/darwin_objdir/gcc/xgcc -B/sw/src/fink.build/gcc48-4.8.0-1000/darwin_objdir/gcc/ /sw/src/fink.build/gcc48-4.8.0-1000/gcc-4.8-20121127/gcc/testsuite/gcc.c-torture/execute/921202-1.c -fno-diagnostics-show-caret -w -O0 -lm -fsanitize=address -o /sw/src/fink.build/gcc48-4.8.0-1000/darwin_objdir/gcc/testsuite/gcc/921202-1.x0 (timeout = 300) PASS: gcc.c-torture/execute/921202-1.c compilation, -O0 Setting LD_LIBRARY_PATH to :/sw/src/fink.build/gcc48-4.8.0-1000/darwin_objdir/gcc::/sw/src/fink.build/gcc48-4.8.0-1000/darwin_objdir/gcc ================================================================= ==51205== ERROR: AddressSanitizer: stack-buffer-overflow on address 0x7fff552f9a38 at pc 0x10a8ffc42 bp 0x7fff552f1950 sp 0x7fff552f1948 WRITE of size 8 at 0x7fff552f9a38 thread T0 #0 0x10a8ffc41 (/sw/src/fink.build/gcc48-4.8.0-1000/darwin_objdir/gcc/testsuite/gcc/921202-1.x0+0x100000c41) #1 0x7fff8bd827e0 (/usr/lib/system/libdyld.dylib+0x27e0) #2 0x0 Address 0x7fff552f9a38 is located at offset 32952 in frame <main> of T0's stack: This frame has 3 object(s): [32, 16472) 'dx' [16512, 32952) 'dy' [32992, 49432) 's1' HINT: this may be a false positive if your program uses some custom stack unwind mechanism or swapcontext (longjmp and C++ exceptions *are* supported) Shadow byte and word: 0x1fffeaa5f347: f4 0x1fffeaa5f340: 00 00 00 00 00 00 00 f4 More shadow bytes: 0x1fffeaa5f320: 00 00 00 00 00 00 00 00 0x1fffeaa5f328: 00 00 00 00 00 00 00 00 0x1fffeaa5f330: 00 00 00 00 00 00 00 00 0x1fffeaa5f338: 00 00 00 00 00 00 00 00 =>0x1fffeaa5f340: 00 00 00 00 00 00 00 f4 0x1fffeaa5f348: f2 f2 f2 f2 00 00 00 00 0x1fffeaa5f350: 00 00 00 00 00 00 00 00 0x1fffeaa5f358: 00 00 00 00 00 00 00 00 0x1fffeaa5f360: 00 00 00 00 00 00 00 00 Stats: 0M malloced (0M for red zones) by 0 calls Stats: 0M realloced by 0 calls Stats: 0M freed by 0 calls Stats: 0M really freed by 0 calls Stats: 0M (0 full pages) mmaped in 0 calls mmaps by size class: mallocs by size class: frees by size class: rfrees by size class: Stats: malloc large: 0 small slow: 0 ==51205== ABORTING FAIL: gcc.c-torture/execute/921202-1.c execution, -O0