Hello,
I can't reproduce the crash.
I tried with the normal binary and also a new build using your arguments.
I get a lot of "Nonfatal Error : 'SEGV-Get32s-exif-333' Illegal number format 1024
for tag 0000 in Exif"
but NO crash.
How can I reproduce the problem?
Bye
Le 06/08/2020 à 05:14, Anshunkang Zhou a écrit :
Package: jhead
Version: 1:3.04-2
Severity: important
Dear Maintainer,
I found a segmentation fault in the latest version of jhead, detailed
information is as follows, the poc is in the mail attachment.
## System info
Ubuntu x86_64, gcc , jhead (latest 1:3.04-2)
## Configure
CFLAGS="-g -fsanitize=address" LDFLAGS="-fsanitize=address" make
## Command line
./jhead -ft -exifmap -de -purejpg -di -dx @@
## Output
```
Segmentation fault
```
## AddressSanitizer output
```
ASAN:SIGSEGV
=================================================================
==17939==ERROR: AddressSanitizer: SEGV on unknown address
0x61a00003f28c (pc 0x00000041a7f0 bp 0x000000000000 sp 0x7ffc54eee3a0
T0)
#0 0x41a7ef in Get32s /home/seviezhou/jhead/exif.c:333
#1 0x42c908 in ProcessGpsInfo /home/seviezhou/jhead/gpsinfo.c:138
#2 0x42411f in ProcessExifDir /home/seviezhou/jhead/exif.c:866
#3 0x423e0e in ProcessExifDir /home/seviezhou/jhead/exif.c:852
#4 0x4255e1 in process_EXIF /home/seviezhou/jhead/exif.c:1041
#5 0x4103ad in ReadJpegSections /home/seviezhou/jhead/jpgfile.c:287
#6 0x4117ce in ReadJpegSections /home/seviezhou/jhead/jpgfile.c:126
#7 0x4117ce in ReadJpegFile /home/seviezhou/jhead/jpgfile.c:379
#8 0x408e4e in ProcessFile /home/seviezhou/jhead/jhead.c:905
#9 0x402e40 in main /home/seviezhou/jhead/jhead.c:1756
#10 0x7ffacc7e783f in __libc_start_main
(/lib/x86_64-linux-gnu/libc.so.6+0x2083f)
#11 0x406c88 in _start (/home/seviezhou/jhead/jhead+0x406c88)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV /home/seviezhou/jhead/exif.c:333 Get32s
==17939==ABORTING
```
--
Dr. Ludovic Rousseau
