WARNING in f2fs_is_valid

WARNING in f2fs_is_valid_blkaddr
Status: upstream: reported C repro on 2020/09/21 09:51
Reported-by: syzbot+763ae12a2ede1d99d4dc@syzkaller.appspotmail.com
First crash: 315d, last: 2h21m

Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: WARNING in sysfs_warn_dup (log)
Repro: C syz .config

similar bugs (2):
Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-4.19	WARNING in f2fs_is_valid_blkaddr	C			522	5h05m	313d	0/1	upstream: reported C repro on 2020/09/21 17:33
linux-4.14	WARNING in f2fs_is_valid_blkaddr	C			497	10d	320d	0/1	upstream: reported C repro on 2020/09/15 10:39

Patch testing requests:
Created	Duration	User	Patch	Repo	Result
2021/03/11 19:33	9m	mail@anirudhrb.com		upstream	report log

Sample crash report:

F2FS-fs (loop0): Magic Mismatch, valid(0xf2f52010) - read(0x0)
F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
F2FS-fs (loop0): invalid crc_offset: 0
F2FS-fs (loop0): access invalid blkaddr:1
------------[ cut here ]------------
WARNING: CPU: 1 PID: 8496 at fs/f2fs/checkpoint.c:189 arch_set_bit arch/x86/include/asm/bitops.h:55 [inline]
WARNING: CPU: 1 PID: 8496 at fs/f2fs/checkpoint.c:189 set_bit include/asm-generic/bitops/instrumented-atomic.h:29 [inline]
WARNING: CPU: 1 PID: 8496 at fs/f2fs/checkpoint.c:189 set_sbi_flag fs/f2fs/f2fs.h:1843 [inline]
WARNING: CPU: 1 PID: 8496 at fs/f2fs/checkpoint.c:189 f2fs_is_valid_blkaddr+0xdb2/0xf80 fs/f2fs/checkpoint.c:188
Modules linked in:
CPU: 1 PID: 8496 Comm: syz-executor391 Not tainted 5.10.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:f2fs_is_valid_blkaddr+0xdb2/0xf80 fs/f2fs/checkpoint.c:189
Code: 89 e2 48 89 df 48 c7 c6 00 70 91 89 e8 84 34 5e 05 48 8d bb b8 00 00 00 be 08 00 00 00 e8 96 9e 5a fe f0 80 8b b8 00 00 00 04 <0f> 0b e9 af f7 ff ff e8 82 c0 5a fe e9 a5 fa ff ff e8 88 c0 5a fe
RSP: 0018:ffffc90000f17718 EFLAGS: 00010206
RAX: 0000000000000001 RBX: ffff8880279b4000 RCX: ffffffff835681ca
RDX: ffffed1004f36818 RSI: 0000000000000008 RDI: ffff8880279b40b8
RBP: 0000000000000007 R08: 0000000000000001 R09: ffff8880279b40bf
R10: ffffed1004f36817 R11: 0000000000000000 R12: 0000000000000001
R13: ffff8880128f9000 R14: 0000000000001400 R15: 0000000000000400
FS:  0000000002664880(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000043f480 CR3: 000000001b31b000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 f2fs_get_node_info+0x4b4/0xbc0 fs/f2fs/node.c:571
 read_node_page+0x4a6/0x9b0 fs/f2fs/node.c:1294
 __get_node_page.part.0+0xa2/0xac0 fs/f2fs/node.c:1354
 __get_node_page fs/f2fs/node.c:35 [inline]
 f2fs_get_node_page+0x109/0x180 fs/f2fs/node.c:1399
 do_read_inode fs/f2fs/inode.c:346 [inline]
 f2fs_iget+0x233/0x4d70 fs/f2fs/inode.c:496
 f2fs_fill_super+0x3e48/0x7410 fs/f2fs/super.c:3729
 mount_bdev+0x32e/0x3f0 fs/super.c:1419
 legacy_get_tree+0x105/0x220 fs/fs_context.c:592
 vfs_get_tree+0x89/0x2f0 fs/super.c:1549
 do_new_mount fs/namespace.c:2875 [inline]
 path_mount+0x13ad/0x20c0 fs/namespace.c:3205
 do_mount fs/namespace.c:3218 [inline]
 __do_sys_mount fs/namespace.c:3426 [inline]
 __se_sys_mount fs/namespace.c:3403 [inline]
 __x64_sys_mount+0x27f/0x300 fs/namespace.c:3403
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x44766a
Code: b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 fd ad fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 da ad fb ff c3 66 0f 1f 84 00 00 00 00 00
RSP: 002b:00007fffd2a3bc68 EFLAGS: 00000297 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fffd2a3bcc0 RCX: 000000000044766a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fffd2a3bc80
RBP: 00007fffd2a3bc80 R08: 00007fffd2a3bcc0 R09: 00007fff00000015
R10: 0000000000000000 R11: 0000000000000297 R12: 000000000000002f
R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003

Crashes (786):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Title
ci-upstream-kasan-gce-selinux-root	2020/11/06 01:48	upstream	521b619acdc8	64069d48	.config	log	report	syz	C
ci-upstream-kasan-gce-smack-root	2020/10/09 15:37	upstream	583090b1b823	d81b165e	.config	log	report	syz	C
ci-upstream-kasan-gce-smack-root	2020/10/03 11:37	upstream	d3d45f8220d6	2653fa43	.config	log	report	syz	C
ci-upstream-kasan-gce-selinux-root	2020/10/02 10:26	upstream	fcadab740480	9602ddf4	.config	log	report	syz	C
ci-upstream-kasan-gce-root	2020/09/30 18:08	upstream	02de58b24d2e	8516f6d3	.config	log	report	syz	C
ci-upstream-kasan-gce-smack-root	2020/09/24 03:17	upstream	805c6d3c1921	287cd75a	.config	log	report	syz	C
ci-upstream-kasan-gce-selinux-root	2020/09/20 17:33	upstream	325d0eab4f31	9564d2e9	.config	log	report	syz	C
ci-upstream-linux-next-kasan-gce-root	2020/11/01 04:26	linux-next	4e78c578cb98	8bc4594f	.config	log	report	syz	C
ci-upstream-kasan-gce-root	2021/08/01 08:34	upstream	f3438b4c4e69	6c236867	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/07/31 21:06	upstream	c7d102232649	6c236867	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/07/31 16:26	upstream	c7d102232649	6c236867	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-selinux-root	2021/07/31 13:36	upstream	c7d102232649	6c236867	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/07/31 11:51	upstream	c7d102232649	6c236867	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/07/31 06:17	upstream	764a5bc89b12	6c236867	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/07/30 22:37	upstream	764a5bc89b12	6c236867	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-root	2021/07/30 16:05	upstream	764a5bc89b12	c585c7b0	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-root	2021/07/30 09:14	upstream	7e96bf476270	c585c7b0	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-selinux-root	2021/07/30 02:52	upstream	7e96bf476270	c585c7b0	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-root	2021/07/29 07:47	upstream	4010a528219e	9a4781d4	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/07/28 13:46	upstream	7d549995d4e0	17d6ab15	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-root	2021/07/28 08:17	upstream	7d549995d4e0	17d6ab15	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/07/27 13:00	upstream	ff1176468d36	fd511809	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/07/27 09:54	upstream	ff1176468d36	fd511809	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/07/27 07:03	upstream	ff1176468d36	fd511809	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/07/27 02:29	upstream	ff1176468d36	fd511809	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/07/27 00:46	upstream	ff1176468d36	fd511809	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-root	2021/07/26 22:50	upstream	ff1176468d36	fd511809	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/07/26 04:27	upstream	d8079fac1681	4d1b57d4	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/07/25 12:01	upstream	6498f6151825	4d1b57d4	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/07/25 06:07	upstream	6498f6151825	4d1b57d4	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-root	2021/07/24 15:10	upstream	f0fddcec6b62	4d1b57d4	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-selinux-root	2021/07/24 14:06	upstream	f0fddcec6b62	4d1b57d4	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/07/23 15:54	upstream	9bead1b58c4c	bc5f1d88	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-selinux-root	2021/07/23 03:41	upstream	9bead1b58c4c	bc5f1d88	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-selinux-root	2021/07/22 20:30	upstream	3d5895cd3517	302e51de	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/07/22 09:45	upstream	7b6ae471e541	29c3f20f	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/07/22 05:55	upstream	7b6ae471e541	29c3f20f	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/07/22 03:52	upstream	7b6ae471e541	29c3f20f	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-root	2021/07/22 00:58	upstream	8cae8cd89f05	29c3f20f	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-qemu-upstream	2021/07/21 22:30	upstream	7b6ae471e541	29c3f20f	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-qemu-upstream	2021/07/21 11:33	upstream	8cae8cd89f05	1b201b48	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-selinux-root	2021/07/21 06:29	upstream	8cae8cd89f05	1b201b48	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-selinux-root	2021/07/21 02:33	upstream	8cae8cd89f05	1b201b48	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/07/21 01:10	upstream	8cae8cd89f05	1b201b48	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-selinux-root	2021/07/20 03:06	upstream	2734d6c1b1a0	bc48c9ab	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/07/20 00:49	upstream	2734d6c1b1a0	bc48c9ab	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/07/19 13:28	upstream	2734d6c1b1a0	e6a17580	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/07/19 08:26	upstream	2734d6c1b1a0	f115ae98	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/07/18 06:37	upstream	d980cc0620ae	f115ae98	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-qemu-upstream-386	2021/06/20 08:14	upstream	913ec3c22ef4	aba2b2fb	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-qemu2-arm32	2021/03/10 02:24	upstream	05a59d79793d	26967e35	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-qemu2-arm64-mte	2021/03/07 09:41	upstream	a38fd8748464	c599ed12	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-qemu2-arm64	2021/02/23 21:25	upstream	3b9cdafb5358	fcc6d71b	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-qemu2-arm64-compat	2021/02/06 02:08	upstream	17fbcdf9f163	23a562df	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-linux-next-kasan-gce-root	2021/08/01 07:07	linux-next	8d4b477da1a8	6c236867	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-linux-next-kasan-gce-root	2021/07/28 19:09	linux-next	42d0b5f52c9b	17d6ab15	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-linux-next-kasan-gce-root	2021/07/24 20:33	linux-next	90d856e71443	4d1b57d4	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-linux-next-kasan-gce-root	2021/07/24 04:49	linux-next	90d856e71443	bc5f1d88	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-linux-next-kasan-gce-root	2021/07/23 14:20	linux-next	90d856e71443	bc5f1d88	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-linux-next-kasan-gce-root	2021/07/22 22:38	linux-next	7468cbf5c917	302e51de	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-linux-next-kasan-gce-root	2021/07/19 00:52	linux-next	c1a6d08348fc	f115ae98	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-linux-next-kasan-gce-root	2021/07/17 22:39	linux-next	c1a6d08348fc	f115ae98	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-root	2021/01/16 18:24	upstream	1d94330a437a	65a7a854	.config	log	report			info
ci-qemu-upstream	2020/09/20 03:09	upstream	325d0eab4f31	53ce8104	.config	log	report			info