Chaitanya Kulkarni d15b57bbd9 null_blk: return error for invalid zone size ... [ Upstream commit e274832590211c4b1b1e807ca66fad8b5bb8b328 ] 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>		2021-03-16 16:28:48 +08:00
..
aoe	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
drbd	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
mtip32xx	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
paride	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
rsxx	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
xen-blkback	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
zram	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
Kconfig	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
Makefile	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
amiflop.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
ataflop.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
brd.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
cryptoloop.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
floppy.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
loop.c	loop: Better discard support for block devices	2021-03-16 16:26:46 +08:00
loop.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
nbd.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
null_blk.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
null_blk_main.c	null_blk: fix spurious IO errors after failed past-wp access	2021-03-16 16:25:55 +08:00
null_blk_zoned.c	null_blk: return error for invalid zone size	2021-03-16 16:28:48 +08:00
pktcdvd.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
ps3disk.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
ps3vram.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
rbd.c	rbd: call rbd_dev_unprobe() after unwatching and flushing notifies	2021-03-16 16:26:31 +08:00
rbd_types.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
skd_main.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
skd_s1120.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
sunvdc.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
swim.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
swim3.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
swim_asm.S	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
sx8.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
umem.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
umem.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
virtio_blk.c	virtio-blk: handle block_device_operations callbacks after hot unplug	2021-03-16 16:27:46 +08:00
xen-blkfront.c	xen/blkfront: fix memory allocation flags in blkfront_setup_indirect()	2021-03-16 16:26:16 +08:00
xsysace.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
z2ram.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00