Jan Kara 9795e0e8ac udf: Fix races with i_size changes during readpage ...

__udf_adinicb_readpage() uses i_size several times. When truncate
changes i_size while the function is running, it can observe several
different values and thus e.g. expose uninitialized parts of page to
userspace. Also use i_size_read() in the function since it does not hold
inode_lock. Since i_size is guaranteed to be small, this cannot really
cause any issues even on 32-bit archs but let's be careful.

CC: stable@vger.kernel.org
Fixes: 9c2fc0de1a6e638fe58c354a463f544f42a90a09
Signed-off-by: Jan Kara <jack@suse.cz>

2017-06-14 11:21:01 +02:00

..

balloc.c

udf: Factor out code for creating indirect extent

2015-12-23 18:04:52 +01:00

dir.c

block,fs: untangle fs.h and blk_types.h

2016-11-01 09:43:26 -06:00

directory.c

block,fs: untangle fs.h and blk_types.h

2016-11-01 09:43:26 -06:00

ecma_167.h

udf: use __packed instead of __attribute__ ((packed))

2017-01-10 11:29:11 +01:00

file.c

udf: Fix races with i_size changes during readpage

2017-06-14 11:21:01 +02:00

ialloc.c

fs: Replace current_fs_time() with current_time()

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

inode.c

udf: use kmap_atomic for memcpy copying

2017-04-24 16:28:02 +02:00

Kconfig

udf: Update Kconfig description

2015-01-05 11:04:37 +01:00

lowlevel.c

udf: atomically read inode size

2017-01-10 11:57:34 +01:00

Makefile

switch udf to simple_fsync()

2009-06-11 21:36:13 -04:00

misc.c

udf: remove empty condition

2017-01-10 11:37:31 +01:00

namei.c

udf: use octal for permissions

2017-04-24 16:27:52 +02:00

osta_udf.h

udf: use __packed instead of __attribute__ ((packed))

2017-01-10 11:29:11 +01:00

partition.c

udf: Use correct partition reference number for metadata

2016-05-19 13:00:35 +02:00

super.c

udf: Remove unused UDF_DEFAULT_BLOCKSIZE

2017-06-13 14:59:14 +02:00

symlink.c

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

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

truncate.c

udf: remove redundant buffer_head.h includes

2015-03-14 07:54:02 +01:00

udf_i.h

fs: cleanup slight list_entry abuse

2015-06-23 18:01:59 -04:00

udf_sb.h

udf: Use correct partition reference number for metadata

2016-05-19 13:00:35 +02:00

udfdecl.h

udf: Make stat on symlink report symlink length as st_size

2017-01-05 07:52:57 +01:00

udfend.h

Remove struct typedefs from fs/udf/ecma_167.h et al.

2009-04-02 12:29:47 +02:00

udftime.c

udf: remove redundant sys_tz declaration

2014-09-29 13:45:12 +02:00

unicode.c

udf: Fix conversion of 'dstring' fields to UTF8

2016-04-25 15:18:50 +02:00