OGAWA Hirofumi 321089a0aa fat: fix memory allocation failure handling of match_strdup() ...

commit 35033ab988c396ad7bce3b6d24060c16a9066db8 upstream.

In parse_options(), if match_strdup() failed, parse_options() leaves
opts->iocharset in unexpected state (i.e.  still pointing the freed
string).  And this can be the cause of double free.

To fix, this initialize opts->iocharset always when freeing.

Link: http://lkml.kernel.org/r/8736wp9dzc.fsf@mail.parknet.co.jp
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Reported-by: syzbot+90b8e10515ae88228a92@syzkaller.appspotmail.com
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-07-25 11:25:07 +02:00

..

cache.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

dir.c

fs: Replace CURRENT_TIME_SEC with current_time() for inode timestamps

2016-09-27 21:06:22 -04:00

fat.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

fatent.c

VFS: Convert sb->s_flags & MS_RDONLY to sb_rdonly(sb)

2017-07-17 08:45:34 +01:00

file.c

statx: Add a system call to make enhanced file info available

2017-03-02 20:51:15 -05:00

inode.c

fat: fix memory allocation failure handling of match_strdup()

2018-07-25 11:25:07 +02:00

Kconfig

fat: add config option to set UTF-8 mount option by default

2016-03-22 15:36:02 -07:00

Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

misc.c

VFS: Convert sb->s_flags & MS_RDONLY to sb_rdonly(sb)

2017-07-17 08:45:34 +01:00

namei_msdos.c

Merge remote-tracking branch 'ovl/rename2' into for-linus

2016-10-10 23:02:51 -04:00

namei_vfat.c

vfat: deduplicate hex2bin()

2017-09-08 18:26:50 -07:00

nfs.c

VFS: normal filesystems (and lustre): d_inode() annotations

2015-04-15 15:06:57 -04:00