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AddressSanitizer:DEADLYSIGNAL
``` =================================================================
==239472==ERROR: AddressSanitizer: SEGV on unknown address (pc 0x7f07ef24cdcd bp 0x7ffd13f032e8 sp 0x7ffd13f03298 T0)
==239472==The signal is caused by a READ memory access.
==239472==Hint: this fault was caused by a dereference of a high value address (see register values below). Dissassemble the provided pc to learn which register was used.
#0 0x7f07ef24cdcd in _IO_str_init_static_internal /build/glibc-LcI20x/glibc-2.31/libio/strops.c:46
#1 0x7f07ef244f89 in __vsnprintf_internal /build/glibc-LcI20x/glibc-2.31/libio/vsnprintf.c:113
#2 0x7f07ef40f30d in __interceptor___vsnprintf_chk ../../../../src/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:1669
#3 0x563cfda6f710 in vsnprintf /usr/include/x86_64-linux-gnu/bits/stdio2.h:80
#4 0x563cfda6f710 in json_vprintf /home/lowry/Documents/HTFuzz/program/mjs/code/mjs.c:6275
#5 0x563cfda723fe in json_printf /home/lowry/Documents/HTFuzz/program/mjs/code/mjs.c:6372
#6 0x563cfda96a5e in mjs_jprintf /home/lowry/Documents/HTFuzz/program/mjs/code/mjs.c:14408
#7 0x563cfda97250 in mjs_fprintf /home/lowry/Documents/HTFuzz/program/mjs/code/mjs.c:14445
#8 0x563cfda97250 in mjs_print /home/lowry/Documents/HTFuzz/program/mjs/code/mjs.c:7995
#9 0xfffa27e0867 (<unknown module>)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV /build/glibc-LcI20x/glibc-2.31/libio/strops.c:46 in _IO_str_init_static_internal
==239472==ABORTING
The text was updated successfully, but these errors were encountered:
Enviroment
Ubuntu20.04, 64bit
Step to reproduce
9eae0e6
Download poc:
mjs_invalid-memory-read_mjs6275.zip
ASAN info:
The text was updated successfully, but these errors were encountered: