Stack-buffer overflow in the linker #925
Description
by robert.swiecki:
What steps will reproduce the problem? 1. Run 'MALLOC_CHECK_=3 6g SIGABRT.PC.0x7ffff7a8ca75.CODE.-6.ADDR.0x1102000004386.INSTR.cmp_rax,_0xfffff000.6' What is the expected output? Error or an a.out file What do you see instead? SIGABRT from the glibc What is your $GOOS? $GOARCH? amd64/linux Which revision are you using? (hg identify) 5992bf56aa72 tip Please provide any additional information below. Please run with MALLOC_CHECK_=3 or under valgrind My output $ /usr/local/google/src/go/6l SIGABRT.PC.0x7ffff7a8ca75.CODE.-6.ADDR.0x1102000004386.INSTR.cmp_rax,_0xfffff000.6 *** stack smashing detected ***: /usr/local/google/src/go/6l terminated ======= Backtrace: ========= /lib/libc.so.6(__fortify_fail+0x37)[0x7ff874824207] /lib/libc.so.6(__fortify_fail+0x0)[0x7ff8748241d0] /usr/local/google/src/go/6l[0x40afee] /usr/local/google/src/go/6l[0x407293] /usr/local/google/src/go/6l[0x4078be] /usr/local/google/src/go/6l[0x40b615] /usr/local/google/src/go/6l[0x412869] /lib/libc.so.6(__libc_start_main+0xfd)[0x7ff874743c4d] /usr/local/google/src/go/6l[0x401219] ======= Memory map: ======== 00400000-0041f000 r-xp 00000000 08:06 2730100 /usr/local/google/src/go/6l 0061e000-0061f000 r--p 0001e000 08:06 2730100 /usr/local/google/src/go/6l 0061f000-00628000 rw-p 0001f000 08:06 2730100 /usr/local/google/src/go/6l 00628000-00648000 rw-p 00000000 00:00 0 00b67000-00b88000 rw-p 00000000 00:00 0 [heap] 7ff873b0d000-7ff873b23000 r-xp 00000000 08:01 1351719 /lib/libgcc_s.so.1 7ff873b23000-7ff873d22000 ---p 00016000 08:01 1351719 /lib/libgcc_s.so.1 7ff873d22000-7ff873d23000 r--p 00015000 08:01 1351719 /lib/libgcc_s.so.1 7ff873d23000-7ff873d24000 rw-p 00016000 08:01 1351719 /lib/libgcc_s.so.1 7ff873d24000-7ff874725000 rw-p 00000000 00:00 0 7ff874725000-7ff87489f000 r-xp 00000000 08:01 1352099 /lib/libc-2.11.1.so 7ff87489f000-7ff874a9e000 ---p 0017a000 08:01 1352099 /lib/libc-2.11.1.so 7ff874a9e000-7ff874aa2000 r--p 00179000 08:01 1352099 /lib/libc-2.11.1.so 7ff874aa2000-7ff874aa3000 rw-p 0017d000 08:01 1352099 /lib/libc-2.11.1.so 7ff874aa3000-7ff874aa8000 rw-p 00000000 00:00 0 7ff874aa8000-7ff874ac8000 r-xp 00000000 08:01 1352096 /lib/ld-2.11.1.so 7ff874ca4000-7ff874ca7000 rw-p 00000000 00:00 0 7ff874cc6000-7ff874cc8000 rw-p 00000000 00:00 0 7ff874cc8000-7ff874cc9000 r--p 00020000 08:01 1352096 /lib/ld-2.11.1.so 7ff874cc9000-7ff874cca000 rw-p 00021000 08:01 1352096 /lib/ld-2.11.1.so 7ff874cca000-7ff874ccb000 rw-p 00000000 00:00 0 7fffa9247000-7fffa925c000 rw-p 00000000 00:00 0 [stack] 7fffa93ff000-7fffa9400000 r-xp 00000000 00:00 0 [vdso] ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall] Aborted
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