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d2ac838e4c
linux/drivers/block
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Theodore Ts'o d2ac838e4c loop: add recursion validation to LOOP_CHANGE_FD 
Refactor the validation code used in LOOP_SET_FD so it is also used in
LOOP_CHANGE_FD.  Otherwise it is possible to construct a set of loop
devices that all refer to each other.  This can lead to a infinite
loop in starting with "while (is_loop_device(f)) .." in loop_set_fd().

Fix this by refactoring out the validation code and using it for
LOOP_CHANGE_FD as well as LOOP_SET_FD.

Reported-by: syzbot+4349872271ece473a7c91190b68b4bac7c5dbc87@syzkaller.appspotmail.com
Reported-by: syzbot+40bd32c4d9a3cc12a339@syzkaller.appspotmail.com
Reported-by: syzbot+769c54e66f994b041be7@syzkaller.appspotmail.com
Reported-by: syzbot+0a89a9ce473936c57065@syzkaller.appspotmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-06-05 09:08:21 -06:00
..
aoe block drivers/block: Use octal not symbolic permissions 2018-05-24 13:38:59 -06:00
drbd Merge branch 'hch.procfs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-06-04 10:00:01 -07:00
mtip32xx blk-mq: only iterate over inflight requests in blk_mq_tagset_busy_iter 2018-05-30 11:31:34 -06:00
paride block: sanitize blk_get_request calling conventions 2018-05-14 08:55:12 -06:00
rsxx block drivers/block: Use octal not symbolic permissions 2018-05-24 13:38:59 -06:00
xen-blkback block drivers/block: Use octal not symbolic permissions 2018-05-24 13:38:59 -06:00
zram Merge branch 'akpm' (patches from Andrew) 2018-04-06 14:19:26 -07:00
amiflop.c genhd: Rename get_disk() to get_disk_and_module() 2018-02-26 09:48:42 -07:00
ataflop.c genhd: Rename get_disk() to get_disk_and_module() 2018-02-26 09:48:42 -07:00
brd.c block drivers/block: Use octal not symbolic permissions 2018-05-24 13:38:59 -06:00
cryptoloop.c block: cryptoloop - Fix build warning 2017-09-26 07:41:22 -06:00
DAC960.c Merge branch 'hch.procfs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-06-04 10:00:01 -07:00
DAC960.h DAC960: don't use block layer bounce buffers 2018-05-11 15:07:54 -06:00
floppy.c block drivers/block: Use octal not symbolic permissions 2018-05-24 13:38:59 -06:00
Kconfig null_blk: remove explicit 'select FAULT_INJECTION' 2018-01-11 07:58:31 -07:00
loop.c loop: add recursion validation to LOOP_CHANGE_FD 2018-06-05 09:08:21 -06:00
loop.h loop: remember whether sysfs_create_group() was done 2018-05-07 15:26:36 -06:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nbd.c blk-mq: only iterate over inflight requests in blk_mq_tagset_busy_iter 2018-05-30 11:31:34 -06:00
null_blk.c null_blk: complete requests from ->timeout 2018-05-29 08:59:21 -06:00
pktcdvd.c Merge branch 'hch.procfs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-06-04 10:00:01 -07:00
ps3disk.c ps3disk: handle highmem pages 2018-05-11 15:08:03 -06:00
ps3vram.c proc: introduce proc_create_single{,_data} 2018-05-16 07:23:35 +02:00
rbd_types.h rbd: RBD_V{1,2}_DATA_FORMAT macros 2017-02-20 12:16:15 +01:00
rbd.c for-4.18/block-20180603 2018-06-04 07:58:06 -07:00
skd_main.c block: Use blk_queue_flag_*() in drivers instead of queue_flag_*() 2018-03-08 14:13:48 -07:00
skd_s1120.h skd: Use __packed only when needed 2017-08-18 08:45:29 -06:00
sunvdc.c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
swim3.c block/swim: Rename macros to avoid inconsistent inverted logic 2018-04-16 21:49:35 -06:00
swim_asm.S
swim.c block/swim: Select appropriate drive on device open 2018-04-16 21:49:35 -06:00
sx8.c block: sanitize blk_get_request calling conventions 2018-05-14 08:55:12 -06:00
umem.c block: Fix a race between the cgroup code and request queue initialization 2018-02-28 12:23:35 -07:00
umem.h
virtio_blk.c block drivers/block: Use octal not symbolic permissions 2018-05-24 13:38:59 -06:00
xen-blkfront.c block drivers/block: Use octal not symbolic permissions 2018-05-24 13:38:59 -06:00
xsysace.c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
z2ram.c genhd: Rename get_disk() to get_disk_and_module() 2018-02-26 09:48:42 -07:00