mp3splt is a command line utility to split mp3 and ogg files without decoding.
A fuzz on it discovered a NULL pointer access.
The complete ASan output:
# mp3splt -P -f -t 0.1 -a $FILE ==3081==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x00000046dbd9 bp 0x7ffc4cdabdb0 sp 0x7ffc4cdab520 T0) ==3081==The signal is caused by a READ memory access. ==3081==Hint: address points to the zero page. #0 0x46dbd8 in __interceptor_strncmp /tmp/portage/sys-devel/llvm-3.9.0-r1/work/llvm-3.9.0.src/projects/compiler-rt/lib/asan/../sanitizer_common/sanitizer_common_interceptors.inc:302 #1 0x51d727 in main /tmp/portage/media-sound/mp3splt-2.6.2/work/mp3splt-2.6.2/src/mp3splt.c:906:11 #2 0x7f8512cf061f in __libc_start_main /var/tmp/portage/sys-libs/glibc-2.22-r4/work/glibc-2.22/csu/libc-start.c:289 #3 0x41ad08 in _init (/usr/bin/mp3splt+0x41ad08) AddressSanitizer can not provide additional info. SUMMARY: AddressSanitizer: SEGV /tmp/portage/sys-devel/llvm-3.9.0-r1/work/llvm-3.9.0.src/projects/compiler-rt/lib/asan/../sanitizer_common/sanitizer_common_interceptors.inc:302 in __interceptor_strncmp ==3081==ABORTING
This bug was discovered by Agostino Sarubbo of Gentoo.
2017-01-01: private report to upstream via mail
2017-01-29: public upstream report on sourceforge
2017-01-29: blog post about the issue
This bug was found with American Fuzzy Lop.