Comment #2 on issue 43307 by evv...@gmail.com: elfutils:fuzz-dwfl-core: Crash in read_addrs https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=43307#c2
It can be reproduced by downloading the reproducer testcase and passing it to eu-stack: ``` autoreconf -i -f ./configure --enable-maintainer-mode --enable-sanitize-address --enable-sanitize-undefined make -j$(nproc) V=1 wget -O oss-fuzz-43307 'https://oss-fuzz.com/download?testcase_id=4696722113167360' LD_LIBRARY_PATH="./libdw;./libelf" ./src/stack --core ./oss-fuzz-43307 AddressSanitizer:DEADLYSIGNAL ================================================================= ==159086==ERROR: AddressSanitizer: SEGV on unknown address 0x7f1c426f6fe0 (pc 0x7f1c47758399 bp 0x60b000001170 sp 0x7ffdf9aca7a0 T0) ==159086==The signal is caused by a READ memory access. #0 0x7f1c47758399 in read_8ubyte_unaligned_noncvt ../libdw/memory-access.h:301 #1 0x7f1c47758399 in read_addrs /home/vagrant/elfutils/libdwfl/link_map.c:288 #2 0x7f1c47758399 in report_r_debug /home/vagrant/elfutils/libdwfl/link_map.c:341 #3 0x7f1c47758399 in dwfl_link_map_report /home/vagrant/elfutils/libdwfl/link_map.c:1117 #4 0x7f1c4775df31 in _new.dwfl_core_file_report /home/vagrant/elfutils/libdwfl/core-file.c:552 #5 0x403b34 in parse_opt /home/vagrant/elfutils/src/stack.c:595 #6 0x7f1c46802471 in argp_parse (/lib64/libc.so.6+0x11e471) #7 0x402a7d in main /home/vagrant/elfutils/src/stack.c:695 #8 0x7f1c4671155f in __libc_start_call_main (/lib64/libc.so.6+0x2d55f) #9 0x7f1c4671160b in __libc_start_main_impl (/lib64/libc.so.6+0x2d60b) #10 0x402f44 in _start (/home/vagrant/elfutils/src/stack+0x402f44) AddressSanitizer can not provide additional info. SUMMARY: AddressSanitizer: SEGV ../libdw/memory-access.h:301 in read_8ubyte_unaligned_noncvt ==159086==ABORTING ``` -- You received this message because: 1. You were specifically CC'd on the issue You may adjust your notification preferences at: https://bugs.chromium.org/hosting/settings Reply to this email to add a comment.
