Closed
Description
Original issue 403 created by Google Code user hanno@hboeck.de on 2015-02-07T11:14:08.000Z:
bsdtar -xf bsdtar-invalid-read-stack.a
will segfault.
Address Sanitizer trace:
==30882==ERROR: AddressSanitizer: stack-buffer-underflow on address 0x7ffff58ae12f at pc 0x4df51b bp 0x7ffff58ae0d0 sp 0x7ffff58ae0c0
READ of size 1 at 0x7ffff58ae12f thread T0
#0 0x4df51a in _ar_read_header libarchive/archive_read_support_format_ar.c:242
#1 0x4df51a in archive_read_format_ar_read_header libarchive/archive_read_support_format_ar.c:437
#2 0x46c4d2 in _archive_read_next_header2 libarchive/archive_read.c:645
#3 0x46c4d2 in _archive_read_next_header libarchive/archive_read.c:685
#4 0x41b0b2 in read_archive tar/read.c:252
#5 0x41d243 in tar_mode_x tar/read.c:104
#6 0x40d78f in main tar/bsdtar.c:805
#7 0x7fe341554f9f in __libc_start_main (/lib64/libc.so.6+0x1ff9f)
#8 0x412d81 (/mnt/ram/libarchive/bsdtar+0x412d81)
Full asan output attached.
See attachment: bsdtar-invalid-read-stack.a
See attachment: bsdtar-invalid-read-stack.a.asan.txt