Gentoo x86_64 multilib. Решил попробовать размаскировать новый gcc. При пересборке system не собралось штук шесть программ с однотипной ошибкой:
* Running libtoolize --copy --force --install ...
*** buffer overflow detected ***: tar terminated
======= Backtrace: =========
/lib/libc.so.6(__fortify_fail+0x37)[0x7f4a52e735c7]
/lib/libc.so.6(+0xe4420)[0x7f4a52e71420]
tar[0x40a3ce]
tar[0x40a658]
tar[0x40ab72]
tar[0x40a8dd]
tar[0x40b91d]
tar[0x41dce5]
/lib/libc.so.6(__libc_start_main+0xfd)[0x7f4a52dabb6d]
tar[0x4041a9]
======= Memory map: ========
00400000-00452000 r-xp 00000000 08:02 31081000 /bin/tar
00651000-00652000 r--p 00051000 08:02 31081000 /bin/tar
00652000-00655000 rw-p 00052000 08:02 31081000 /bin/tar
00655000-00677000 rw-p 00000000 00:00 0 [heap]
7f4a52757000-7f4a5276c000 r-xp 00000000 08:02 31459620 /lib64/libgcc_s.so.1
7f4a5276c000-7f4a5296b000 ---p 00015000 08:02 31459620 /lib64/libgcc_s.so.1
7f4a5296b000-7f4a5296c000 r--p 00014000 08:02 31459620 /lib64/libgcc_s.so.1
7f4a5296c000-7f4a5296d000 rw-p 00015000 08:02 31459620 /lib64/libgcc_s.so.1
7f4a5296d000-7f4a52984000 r-xp 00000000 08:02 31327845 /lib64/libpthread-2.11.1.so
7f4a52984000-7f4a52b83000 ---p 00017000 08:02 31327845 /lib64/libpthread-2.11.1.so
7f4a52b83000-7f4a52b84000 r--p 00016000 08:02 31327845 /lib64/libpthread-2.11.1.so
7f4a52b84000-7f4a52b85000 rw-p 00017000 08:02 31327845 /lib64/libpthread-2.11.1.so
7f4a52b85000-7f4a52b89000 rw-p 00000000 00:00 0
7f4a52b89000-7f4a52b8b000 r-xp 00000000 08:02 31327387 /lib64/libdl-2.11.1.so
7f4a52b8b000-7f4a52d8b000 ---p 00002000 08:02 31327387 /lib64/libdl-2.11.1.so
7f4a52d8b000-7f4a52d8c000 r--p 00002000 08:02 31327387 /lib64/libdl-2.11.1.so
7f4a52d8c000-7f4a52d8d000 rw-p 00003000 08:02 31327387 /lib64/libdl-2.11.1.so
7f4a52d8d000-7f4a52ee1000 r-xp 00000000 08:02 31327831 /lib64/libc-2.11.1.so
7f4a52ee1000-7f4a530e1000 ---p 00154000 08:02 31327831 /lib64/libc-2.11.1.so
7f4a530e1000-7f4a530e5000 r--p 00154000 08:02 31327831 /lib64/libc-2.11.1.so
7f4a530e5000-7f4a530e6000 rw-p 00158000 08:02 31327831 /lib64/libc-2.11.1.so
7f4a530e6000-7f4a530eb000 rw-p 00000000 00:00 0
7f4a530eb000-7f4a530f3000 r-xp 00000000 08:02 31327875 /lib64/librt-2.11.1.so
7f4a530f3000-7f4a532f2000 ---p 00008000 08:02 31327875 /lib64/librt-2.11.1.so
7f4a532f2000-7f4a532f3000 r--p 00007000 08:02 31327875 /lib64/librt-2.11.1.so
7f4a532f3000-7f4a532f4000 rw-p 00008000 08:02 31327875 /lib64/librt-2.11.1.so
7f4a532f4000-7f4a53300000 r-xp 00000000 08:02 31068875 /usr/lib64/libsandbox.so
7f4a53300000-7f4a53500000 ---p 0000c000 08:02 31068875 /usr/lib64/libsandbox.so
7f4a53500000-7f4a53501000 r--p 0000c000 08:02 31068875 /usr/lib64/libsandbox.so
7f4a53501000-7f4a53502000 rw-p 0000d000 08:02 31068875 /usr/lib64/libsandbox.so
7f4a53502000-7f4a53504000 rw-p 00000000 00:00 0
7f4a53504000-7f4a53522000 r-xp 00000000 08:02 31327834 /lib64/ld-2.11.1.so
7f4a536a8000-7f4a536f8000 rw-p 00000000 00:00 0
7f4a536f8000-7f4a53721000 rw-p 00000000 00:00 0
7f4a53721000-7f4a53722000 r--p 0001d000 08:02 31327834 /lib64/ld-2.11.1.so
7f4a53722000-7f4a53723000 rw-p 0001e000 08:02 31327834 /lib64/ld-2.11.1.so
7f4a53723000-7f4a53724000 rw-p 00000000 00:00 0
7fffdd870000-7fffdd888000 rw-p 00000000 00:00 0 [stack]
7fffdd9ff000-7fffdda00000 r-xp 00000000 00:00 0 [vdso]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall]
*** buffer overflow detected ***: tar terminated
======= Backtrace: =========
/lib/libc.so.6(__fortify_fail+0x37)[0x7f8a79fa35c7]
/lib/libc.so.6(+0xe4420)[0x7f8a79fa1420]
...