Comment #2 on issue 45629 by da...@adalogics.com: elfutils:fuzz-libdwfl:
Indirect-leak in __libelf_read_mmaped_file
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=45629#c2
ASAN report
Indirect leak of 264 byte(s) in 1 object(s) allocated from:
#0 0x524ae2 in __interceptor_calloc
/src/llvm-project/compiler-rt/lib/asan/asan_malloc_linux.cpp:138:3
#1 0x622d34 in allocate_elf /src/elfutils/libelf/common.h:74:17
#2 0x622d34 in __libelf_read_mmaped_file
/src/elfutils/libelf/elf_begin.c:578:10
#3 0x6283cf in read_file /src/elfutils/libelf/elf_begin.c:701:28
#4 0x628037 in dup_elf /src/elfutils/libelf/elf_begin.c:1067:12
#5 0x628037 in lock_dup_elf /src/elfutils/libelf/elf_begin.c:1119:10
#6 0x627c93 in elf_begin /src/elfutils/libelf/elf_begin.c:0
#7 0x56009b in process_archive /src/elfutils/libdwfl/offline.c:251:17
#8 0x56009b in process_file /src/elfutils/libdwfl/offline.c:125:14
#9 0x560a48 in __libdwfl_report_offline
/src/elfutils/libdwfl/offline.c:287:22
#10 0x560a48 in dwfl_report_offline /src/elfutils/libdwfl/offline.c:316:10
#11 0x55dc32 in LLVMFuzzerTestOneInput /src/fuzz-libdwfl.c:47:22
#12 0x455522 in fuzzer::Fuzzer::ExecuteCallback(unsigned char const*,
unsigned long) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:611:15
#13 0x4410d2 in fuzzer::RunOneTest(fuzzer::Fuzzer*, char const*, unsigned
long) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:324:6
#14 0x44693c in fuzzer::FuzzerDriver(int*, char***, int (*)(unsigned char
const*, unsigned long))
/src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:860:9
#15 0x46f2d2 in main
/src/llvm-project/compiler-rt/lib/fuzzer/FuzzerMain.cpp:20:10
#16 0x7f61fb6210b2 in __libc_start_main
/build/glibc-eX1tMB/glibc-2.31/csu/libc-start.c:308:16
Indirect leak of 264 byte(s) in 1 object(s) allocated from:
#0 0x524ae2 in __interceptor_calloc
/src/llvm-project/compiler-rt/lib/asan/asan_malloc_linux.cpp:138:3
#1 0x622bc1 in allocate_elf /src/elfutils/libelf/common.h:74:17
#2 0x622bc1 in file_read_ar /src/elfutils/libelf/elf_begin.c:59:9
#3 0x622bc1 in __libelf_read_mmaped_file
/src/elfutils/libelf/elf_begin.c:570:14
#4 0x6283cf in read_file /src/elfutils/libelf/elf_begin.c:701:28
#5 0x627be1 in elf_begin /src/elfutils/libelf/elf_begin.c:0
#6 0x56b2ac in libdw_open_elf /src/elfutils/libdwfl/open.c:131:14
#7 0x56b1ac in __libdw_open_file /src/elfutils/libdwfl/open.c:197:10
#8 0x5609d2 in __libdwfl_report_offline
/src/elfutils/libdwfl/offline.c:281:22
#9 0x5609d2 in dwfl_report_offline /src/elfutils/libdwfl/offline.c:316:10
#10 0x55dc32 in LLVMFuzzerTestOneInput /src/fuzz-libdwfl.c:47:22
#11 0x455522 in fuzzer::Fuzzer::ExecuteCallback(unsigned char const*,
unsigned long) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:611:15
#12 0x4410d2 in fuzzer::RunOneTest(fuzzer::Fuzzer*, char const*, unsigned
long) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:324:6
#13 0x44693c in fuzzer::FuzzerDriver(int*, char***, int (*)(unsigned char
const*, unsigned long))
/src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:860:9
#14 0x46f2d2 in main
/src/llvm-project/compiler-rt/lib/fuzzer/FuzzerMain.cpp:20:10
#15 0x7f61fb6210b2 in __libc_start_main
/build/glibc-eX1tMB/glibc-2.31/csu/libc-start.c:308:16
SUMMARY: AddressSanitizer: 528 byte(s) leaked in 2 allocation(s).
INFO: a leak has been found in the initial corpus.
INFO: to ignore leaks on libFuzzer side use -detect_leaks=0.
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