Jan Kara 7450166a29 udf: Fix extending file within last block ...

commit 1f3868f06855c97a4954c99b36f3fc9eb8f60326 upstream.

When extending file within last block it can happen that the extent is
already rounded to the blocksize and thus contains the offset we want to
grow up to. In such case we would mistakenly expand the last extent and
make it one block longer than it should be, exposing unallocated block
in a file and causing data corruption. Fix the problem by properly
detecting this case and bailing out.

CC: stable@vger.kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2023-01-18 09:26:06 +01:00

..

balloc.c

udf: Drop unused arguments of udf_delete_aext()

2023-01-18 09:26:06 +01:00

dir.c

…

directory.c

udf: Detect incorrect directory size

2018-07-03 11:25:03 +02:00

ecma_167.h

…

file.c

udf: Use i_size_read() in udf_adinicb_writepage()

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

ialloc.c

…

inode.c

udf: Fix extending file within last block

2023-01-18 09:26:06 +01:00

Kconfig

…

lowlevel.c

…

Makefile

…

misc.c

udf_get_extendedattr() had no boundary checks.

2021-09-22 11:45:18 +02:00

namei.c

udf: Fix a slab-out-of-bounds write bug in udf_find_entry()

2022-11-25 17:36:47 +01:00

osta_udf.h

…

partition.c

…

super.c

udf: Check LVID earlier

2021-09-22 11:45:17 +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: Do not bother looking for prealloc extents if i_lenExtents matches i_size

2023-01-18 09:26:06 +01:00

udf_i.h

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

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

udf_sb.h

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

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

udfdecl.h

udf: Drop unused arguments of udf_delete_aext()

2023-01-18 09:26:06 +01:00

udfend.h

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

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

udftime.c

udf: Convert udf_disk_stamp_to_time() to use mktime64()

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

unicode.c

udf: Allow mounting volumes with incorrect identification strings

2018-12-08 13:03:39 +01:00