Package: e2fsprogs Version: 1.43.5-1 $ gzip -d underwrite.ext2.gz $ valgrind /sbin/e2fsck -f -y underwrite.ext2 > /dev/null ==6645== Memcheck, a memory error detector ==6645== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al. ==6645== Using Valgrind-3.13.0 and LibVEX; rerun with -h for copyright info ==6645== Command: /sbin/e2fsck -f -y underwrite.ext2 ==6645== e2fsck 1.43.5 (04-Aug-2017) ==6645== Invalid write of size 1 ==6645== at 0x48349C0: memset (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so) ==6645== by 0x4892A2E: memset (string3.h:90) ==6645== by 0x4892A2E: raw_read_blk (unix_io.c:250) ==6645== by 0x48936FE: unix_read_blk64.part.5 (unix_io.c:862) ==6645== by 0x4880D82: ext2fs_read_inode_full (inode.c:803) ==6645== by 0x4880FF4: ext2fs_read_inode (inode.c:845) ==6645== by 0x11745F: check_resize_inode (super.c:346) ==6645== by 0x1126C0: main (unix.c:1761) ==6645== Address 0x4affac7 is 1 bytes before a block of size 1,024 alloc'd ==6645== at 0x482E2BC: malloc (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so) ==6645== by 0x488198D: ext2fs_get_mem (ext2fs.h:1740) ==6645== by 0x488198D: io_channel_alloc_buf (io_manager.c:140) ==6645== by 0x4892CDE: alloc_cache (unix_io.c:401) ==6645== by 0x4893CEE: unix_open_channel (unix_io.c:644) ==6645== by 0x4885046: ext2fs_open2 (openfs.c:160) ==6645== by 0x1151AA: try_open_fs (unix.c:1141) ==6645== by 0x1120E3: main (unix.c:1447) ...
Found using American Fuzzy Lop: http://lcamtuf.coredump.cx/afl/ -- System Information: Architecture: i386 Versions of packages e2fsprogs depends on: ii e2fslibs 1.43.5-1 ii libblkid1 2.29.2-2 ii libc6 2.24-14 ii libcomerr2 1.43.5-1 ii libss2 1.43.5-1 ii libuuid1 2.29.2-2 ii util-linux 2.29.2-2 -- Jakub Wilk
underwrite.ext2.gz
Description: application/gzip
