Chaitanya Kulkarni fb1c56d1d2 null_blk: return error for invalid zone size ... [ Upstream commit e274832590 ] In null_init_zone_dev() check if the zone size is larger than device capacity, return error if needed. This also fixes the following oops :- null_blk: changed the number of conventional zones to 4294967295 BUG: kernel NULL pointer dereference, address: 0000000000000010 PGD 7d76c5067 P4D 7d76c5067 PUD 7d240c067 PMD 0 Oops: 0002 [#1] SMP NOPTI CPU: 4 PID: 5508 Comm: nullbtests.sh Tainted: G OE 5.7.0-rc4lblk-fnext0 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.0-59-gc9ba5276e4 RIP: 0010:null_init_zoned_dev+0x17a/0x27f [null_blk] RSP: 0018:ffffc90007007e00 EFLAGS: 00010246 RAX: 0000000000000020 RBX: ffff8887fb3f3c00 RCX: 0000000000000007 RDX: 0000000000000000 RSI: ffff8887ca09d688 RDI: ffff888810fea510 RBP: 0000000000000010 R08: ffff8887ca09d688 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8887c26e8000 R13: ffffffffa05e9390 R14: 0000000000000000 R15: 0000000000000001 FS: 00007fcb5256f740(0000) GS:ffff888810e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000010 CR3: 000000081e8fe000 CR4: 00000000003406e0 Call Trace: null_add_dev+0x534/0x71b [null_blk] nullb_device_power_store.cold.41+0x8/0x2e [null_blk] configfs_write_file+0xe6/0x150 vfs_write+0xba/0x1e0 ksys_write+0x5f/0xe0 do_syscall_64+0x60/0x250 entry_SYSCALL_64_after_hwframe+0x49/0xb3 RIP: 0033:0x7fcb51c71840 Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-06-07 13:17:56 +02:00
..
aoe
drbd	signal: Allow cifs and drbd to receive their terminating signals	2020-01-27 14:51:05 +01:00
mtip32xx
paride
rsxx	rsxx: add missed destroy_workqueue calls in remove	2019-12-13 08:51:06 +01:00
xen-blkback	xen/blkback: Avoid unmapping unmapped grant pages	2020-01-09 10:19:09 +01:00
zram	zram: fix race between backing_dev_show and backing_dev_store	2019-11-06 13:05:10 +01:00
amiflop.c	amiflop: clean up on errors during setup	2019-12-01 09:16:25 +01:00
ataflop.c
brd.c	brd: check and limit max_part par	2020-02-24 08:34:53 +01:00
cryptoloop.c
DAC960.c
DAC960.h
floppy.c	floppy: check FDC index for errors before assigning it	2020-02-28 16:38:45 +01:00
Kconfig
loop.c	loop: Better discard support for block devices	2020-04-29 16:31:13 +02:00
loop.h	block/loop: Use global lock for ioctl() operation.	2019-01-22 21:40:36 +01:00
Makefile
nbd.c	nbd: add a flush_workqueue in nbd_start_device	2020-02-24 08:34:39 +01:00
null_blk_main.c	null_blk: fix spurious IO errors after failed past-wp access	2020-04-17 10:48:39 +02:00
null_blk_zoned.c	null_blk: return error for invalid zone size	2020-06-07 13:17:56 +02:00
null_blk.h
pktcdvd.c	pktcdvd: remove warning on attempting to register non-passthrough dev	2019-10-07 18:57:15 +02:00
ps3disk.c
ps3vram.c
rbd_types.h
rbd.c	rbd: call rbd_dev_unprobe() after unwatching and flushing notifies	2020-04-23 10:30:15 +02:00
skd_main.c	skd: fixup usage of legacy IO API	2019-12-01 09:16:20 +01:00
skd_s1120.h
sunvdc.c	sunvdc: Do not spin in an infinite loop when vio_ldc_send() returns EAGAIN	2019-02-12 19:47:03 +01:00
swim_asm.S
swim.c
swim3.c	block/swim3: Fix -EBUSY error when re-opening device after unmount	2019-02-12 19:47:18 +01:00
sx8.c
umem.c
umem.h
virtio_blk.c	virtio-blk: handle block_device_operations callbacks after hot unplug	2020-05-20 08:18:33 +02:00
xen-blkfront.c	xen/blkfront: fix memory allocation flags in blkfront_setup_indirect()	2020-04-17 10:48:53 +02:00
xsysace.c	xsysace: Fix error handling in ace_setup	2019-05-08 07:21:51 +02:00
z2ram.c