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: 394d, last: 8h37m

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			692	20h58m	392d	0/1	upstream: reported C repro on 2020/09/21 17:33
linux-4.14	WARNING in f2fs_is_valid_blkaddr	C			498	16d	398d	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 (1108):
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-smack-root	2021/10/18 21:05	upstream	cf52ad5ff16c	0c5d9412	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/10/18 13:04	upstream	cf52ad5ff16c	0c5d9412	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-selinux-root	2021/10/18 11:27	upstream	cf52ad5ff16c	0c5d9412	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-root	2021/10/18 06:20	upstream	d999ade1cc86	0c5d9412	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-root	2021/10/17 19:01	upstream	d999ade1cc86	0c5d9412	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/10/17 17:35	upstream	d999ade1cc86	0c5d9412	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-root	2021/10/17 16:02	upstream	d999ade1cc86	0c5d9412	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-root	2021/10/17 13:52	upstream	d999ade1cc86	0c5d9412	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/10/17 06:06	upstream	304040fb4909	0c5d9412	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-root	2021/10/17 00:41	upstream	304040fb4909	0c5d9412	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-selinux-root	2021/10/16 22:51	upstream	304040fb4909	0c5d9412	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-root	2021/10/16 18:17	upstream	8fe31e0995f0	0c5d9412	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/10/16 14:49	upstream	8fe31e0995f0	0c5d9412	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-root	2021/10/16 12:40	upstream	8fe31e0995f0	0c5d9412	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-root	2021/10/16 09:51	upstream	8fe31e0995f0	0c5d9412	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-root	2021/10/16 00:59	upstream	ec681c53f8d2	0c5d9412	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-selinux-root	2021/10/15 19:49	upstream	ec681c53f8d2	0c5d9412	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/10/15 00:31	upstream	26d657410983	7aa5fe41	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/10/14 14:19	upstream	348949d9a444	5462d470	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/10/12 00:05	upstream	64570fbc14f8	838e7e2c	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-root	2021/10/08 13:02	upstream	1da38549dd64	efe0f24d	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/10/07 10:57	upstream	5af4055fa813	62ee0987	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/10/06 04:49	upstream	f6274b06e326	0a63fd36	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-root	2021/10/05 23:58	upstream	f6274b06e326	0a63fd36	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/10/05 08:21	upstream	84b3e42564ac	ce697b49	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-selinux-root	2021/10/04 20:58	upstream	84b3e42564ac	ce697b49	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-kasan-gce-smack-root	2021/10/04 17:25	upstream	9e1ff307c779	ce697b49	.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-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	2021/10/18 09:13	linux-next	7c832d2f9b95	0c5d9412	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-linux-next-kasan-gce-root	2021/10/18 01:43	linux-next	7c832d2f9b95	0c5d9412	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-linux-next-kasan-gce-root	2021/10/17 12:21	linux-next	7c832d2f9b95	0c5d9412	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-linux-next-kasan-gce-root	2021/10/17 08:50	linux-next	7c832d2f9b95	0c5d9412	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-linux-next-kasan-gce-root	2021/10/16 21:35	linux-next	7c832d2f9b95	0c5d9412	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-linux-next-kasan-gce-root	2021/10/16 16:39	linux-next	7c832d2f9b95	0c5d9412	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-linux-next-kasan-gce-root	2021/10/16 14:53	linux-next	7c832d2f9b95	0c5d9412	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-linux-next-kasan-gce-root	2021/10/15 16:14	linux-next	7c832d2f9b95	0c5d9412	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-linux-next-kasan-gce-root	2021/10/14 00:49	linux-next	8006b911c90a	5462d470	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-linux-next-kasan-gce-root	2021/10/12 07:36	linux-next	d3134eb5de85	838e7e2c	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-linux-next-kasan-gce-root	2021/10/10 15:13	linux-next	683f29b781ae	838e7e2c	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-linux-next-kasan-gce-root	2021/10/10 05:32	linux-next	683f29b781ae	838e7e2c	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-linux-next-kasan-gce-root	2021/10/09 21:07	linux-next	683f29b781ae	838e7e2c	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-linux-next-kasan-gce-root	2021/10/09 09:17	linux-next	683f29b781ae	efe0f24d	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-linux-next-kasan-gce-root	2021/10/08 17:28	linux-next	683f29b781ae	efe0f24d	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-linux-next-kasan-gce-root	2021/10/08 14:26	linux-next	683f29b781ae	efe0f24d	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-linux-next-kasan-gce-root	2021/10/08 02:25	linux-next	f8dc23b3dc0c	efe0f24d	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-linux-next-kasan-gce-root	2021/10/06 11:03	linux-next	29616f67fcbd	0a63fd36	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-linux-next-kasan-gce-root	2021/10/05 04:18	linux-next	a25006a77348	ce697b49	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-linux-next-kasan-gce-root	2021/10/04 23:53	linux-next	a25006a77348	ce697b49	.config	log	report			info	WARNING in f2fs_is_valid_blkaddr
ci-upstream-linux-next-kasan-gce-root	2021/10/03 08:49	linux-next	a25006a77348	db0f5787	.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