Comment #2 on issue 45628 by [email protected]: elfutils:fuzz-libdwfl:
Heap-buffer-overflow in strtol
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=45628#c2
Stack trace from detailed report:
==2680==ERROR: AddressSanitizer: unknown-crash on address
0x7fd79225d000 at pc 0x00000044fd53 bp 0x7ffd96c8ead0 sp 0x7ffd96c8e288
READ of size 249 at 0x7fd79225d000 thread T0
SCARINESS: 16 (multi-byte-read-unknown-crash)
#0 0x44fd52 in StrtolFixAndCheck(void*, char const*, char**, char*, int)
/src/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc:3440:3
#1 0x488f30 in strtol
/src/llvm-project/compiler-rt/lib/asan/asan_interceptors.cpp:484:3
#2 0x5a4f1b in atol /usr/include/stdlib.h:368:10
#3 0x5a4f1b in read_long_names /src/elfutils/libelf/elf_begin.c:766:13
#4 0x5a4f1b in __libelf_next_arhdr_wrlock
/src/elfutils/libelf/elf_begin.c:912:8
#5 0x5a65c2 in dup_elf /src/elfutils/libelf/elf_begin.c:1061:10
#6 0x5a65c2 in lock_dup_elf /src/elfutils/libelf/elf_begin.c:1119:10
#7 0x5a65c2 in elf_begin /src/elfutils/libelf/elf_begin.c:1165:11
#8 0x4e3732 in process_archive /src/elfutils/libdwfl/offline.c:251:17
#9 0x4e3732 in process_file /src/elfutils/libdwfl/offline.c:125:14
#10 0x4e4136 in __libdwfl_report_offline
/src/elfutils/libdwfl/offline.c:287:22
#11 0x4e4136 in dwfl_report_offline /src/elfutils/libdwfl/offline.c:316:10
#12 0x4e120d in LLVMFuzzerTestOneInput /src/fuzz-libdwfl.c:47:22
#13 0x4d732b in main
#14 0x7fd7930a70b2 in __libc_start_main
/build/glibc-eX1tMB/glibc-2.31/csu/libc-start.c:308:16
#15 0x41d65d in _start
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