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4acadda74f
linux/fs/ubifs
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Richard Weinberger 4acadda74f ubifs: Don't leak kernel memory to the MTD 
When UBIFS prepares data structures which will be written to the MTD it
ensues that their lengths are multiple of 8. Since it uses kmalloc() the
padded bytes are left uninitialized and we leak a few bytes of kernel
memory to the MTD.
To make sure that all bytes are initialized, let's switch to kzalloc().
Kzalloc() is fine in this case because the buffers are not huge and in
the IO path the performance bottleneck is anyway the MTD.

Cc: stable@vger.kernel.org
Fixes: 1e51764a3c ("UBIFS: add new flash file system")
Signed-off-by: Richard Weinberger <richard@nod.at>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2017-07-14 22:50:52 +02:00
..
budget.c UBIFS: extend debug/message capabilities 2015-03-25 11:08:41 +02:00
commit.c UBIFS: extend debug/message capabilities 2015-03-25 11:08:41 +02:00
compress.c UBIFS: extend debug/message capabilities 2015-03-25 11:08:41 +02:00
crypto.c fscrypt: constify struct fscrypt_operations 2017-02-08 10:59:57 -05:00
debug.c ubifs: Fix cut and paste error on sb type comparisons 2017-05-08 20:48:41 +02:00
debug.h
dir.c ubifs: Wire-up statx() support 2017-07-14 22:49:07 +02:00
file.c ubifs: Change gfp flags in page allocation for bulk read 2017-07-14 22:50:50 +02:00
find.c UBIFS: fix mounting problems after power cuts 2012-10-26 16:26:44 +03:00
gc.c ubifs: Remove some dead code 2016-12-12 23:06:28 +01:00
io.c ubifs: Use dirty_writeback_interval value for wbuf timer 2016-12-12 23:06:24 +01:00
ioctl.c This pull request contains updates for both UBI and UBIFS: 2017-05-13 10:23:12 -07:00
journal.c ubifs: Don't leak kernel memory to the MTD 2017-07-14 22:50:52 +02:00
Kconfig ubifs: Add CONFIG_UBIFS_FS_SECURITY to disable/enable security labels 2017-05-08 20:48:23 +02:00
key.h ubifs: Add assert to dent_key_init() 2017-07-14 22:49:06 +02:00
log.c UBIFS: extend debug/message capabilities 2015-03-25 11:08:41 +02:00
lprops.c UBIFS: improve function-level documentation 2016-10-02 22:55:02 +02:00
lpt_commit.c UBIFS: improve function-level documentation 2016-10-02 22:55:02 +02:00
lpt.c UBIFS: use kmemdup rather than duplicating its implementation 2015-10-03 20:03:14 +02:00
Makefile ubifs: Add skeleton for fscrypto 2016-12-12 23:07:38 +01:00
master.c UBIFS: extend debug/message capabilities 2015-03-25 11:08:41 +02:00
misc.c ubifs: Add logging functions for ubifs_msg, ubifs_err and ubifs_warn 2016-03-20 21:36:05 +01:00
misc.h fs: ubifs: replace CURRENT_TIME_SEC with current_time 2017-05-08 17:15:15 -07:00
orphan.c UBIFS: extend debug/message capabilities 2015-03-25 11:08:41 +02:00
recovery.c ubifs: Remove unnecessary assignment 2017-05-08 20:48:47 +02:00
replay.c ubifs: Implement encrypted filenames 2016-12-12 23:07:38 +01:00
sb.c fs: ubifs: replace CURRENT_TIME_SEC with current_time 2017-05-08 17:15:15 -07:00
scan.c UBIFS: extend debug/message capabilities 2015-03-25 11:08:41 +02:00
shrinker.c UBIFS: Remove incorrect assertion in shrink_tnc() 2014-06-02 11:28:24 +03:00
super.c ubifs: Fix oops when remounting with no_bulk_read. 2017-07-14 22:50:40 +02:00
tnc_commit.c ubifs: Fail commit if TNC is obviously inconsistent 2017-07-14 22:49:07 +02:00
tnc_misc.c UBIFS: extend debug/message capabilities 2015-03-25 11:08:41 +02:00
tnc.c ubifs: Massage debug prints wrt. fscrypt 2017-07-14 22:49:07 +02:00
ubifs-media.h ubifs: Raise write version to 5 2016-12-12 23:07:38 +01:00
ubifs.h ubifs: Fix unlink code wrt. double hash lookups 2017-07-14 22:49:06 +02:00
xattr.c ubifs: Correctly evict xattr inodes 2017-07-14 22:49:04 +02:00