WARNING in ext4_set_page

WARNING in ext4_set_page_dirty
Status: upstream: reported C repro on 2018/04/01 08:05
Reported-by: syzbot+9a44753ac327c557796a@syzkaller.appspotmail.com
First crash: 1118d, last: 29d

Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: kernel BUG at fs/ext4/inode.c:LINE! (log)
Repro: C syz .config

Fix bisection: fixed by (bisect log) :
commit 7dfbf8a07cf8c936b0d6cc810df6ae7923954d5b
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Tue Jun 30 15:27:24 2020 +0000

drm/i915: Skip stale object handle for debugfs per-file-stats

similar bugs (3):
Kernel	Title	Repro	Fix bisect	Count	Last	Reported	Patched	Status
linux-4.19	WARNING in ext4_set_page_dirty	C	error	33	231d	740d	0/1	upstream: reported C repro on 2019/04/13 10:39
linux-4.14	WARNING in ext4_set_page_dirty	syz	error	7	338d	664d	0/1	upstream: reported syz repro on 2019/06/29 07:29
android-414	WARNING in ext4_set_page_dirty			15	872d	741d	0/1	auto-closed as invalid on 2019/06/01 07:06

Sample crash report:

------------[ cut here ]------------
WARNING: CPU: 1 PID: 2660 at fs/ext4/inode.c:3562 ext4_set_page_dirty+0x34d/0x480 fs/ext4/inode.c:3562
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 2660 Comm: kworker/1:2 Not tainted 5.5.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events xdp_umem_release_deferred
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
 panic+0x2e3/0x75c kernel/panic.c:221
 __warn.cold+0x2f/0x3e kernel/panic.c:582
 report_bug+0x289/0x300 lib/bug.c:195
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 fixup_bug arch/x86/kernel/traps.c:169 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:267
 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:286
 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027
RIP: 0010:ext4_set_page_dirty+0x34d/0x480 fs/ext4/inode.c:3562
Code: ff e8 b7 47 72 ff 49 8d 5f ff e9 a3 fd ff ff e8 a9 47 72 ff 48 c7 c6 60 59 3c 88 4c 89 e7 e8 ea fd 9d ff 0f 0b e8 93 47 72 ff <0f> 0b e9 56 ff ff ff e8 87 47 72 ff 4c 89 ea 48 b8 00 00 00 00 00
RSP: 0018:ffffc90007c57be8 EFLAGS: 00010293
RAX: ffff8880a0aee200 RBX: 0000000000000000 RCX: ffffffff8202e5b2
RDX: 0000000000000000 RSI: ffffffff8202e65d RDI: 0000000000000001
RBP: ffffc90007c57c10 R08: ffff8880a0aee200 R09: fffff9400043f6a1
R10: fffff9400043f6a0 R11: ffffea00021fb507 R12: ffffea00021fb500
R13: ffffea00021fb508 R14: 0000000000000000 R15: ffffea00022754c8
 set_page_dirty+0x301/0x850 mm/page-writeback.c:2572
 set_page_dirty_lock+0x99/0xe0 mm/page-writeback.c:2597
 put_user_pages_dirty_lock mm/gup.c:93 [inline]
 put_user_pages_dirty_lock+0x2a4/0x740 mm/gup.c:54
 xdp_umem_unpin_pages.isra.0+0x3d/0xb0 net/xdp/xdp_umem.c:215
 xdp_umem_release net/xdp/xdp_umem.c:250 [inline]
 xdp_umem_release_deferred+0x155/0x210 net/xdp/xdp_umem.c:263
 process_one_work+0x9af/0x1740 kernel/workqueue.c:2264
 worker_thread+0x98/0xe40 kernel/workqueue.c:2410
 kthread+0x361/0x430 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (16202):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Title
ci-upstream-kasan-gce-root	2019/12/23 22:48	upstream	46cf053e	be5c2c81	.config	log	report	syz	C
ci-upstream-kasan-gce-root	2019/08/10 06:12	upstream	7f20fd23	acb51638	.config	log	report	syz	C
ci-upstream-kasan-gce-smack-root	2019/06/24 03:36	upstream	241e3900	472f0082	.config	log	report	syz	C
ci-upstream-kasan-gce-selinux-root	2019/06/23 23:41	upstream	241e3900	472f0082	.config	log	report	syz	C
ci-upstream-kasan-gce-root	2018/05/21 06:06	upstream	771c577c	f48c20b8	.config	log	report	syz	C
ci-upstream-linux-next-kasan-gce-root	2019/12/30 22:02	linux-next	7ddd09fc	af6b8ef8	.config	log	report	syz	C
ci-upstream-linux-next-kasan-gce-root	2019/07/01 02:50	linux-next	48568d8c	699d6448	.config	log	report	syz	C
ci-upstream-kasan-gce-selinux-root	2020/09/08 14:08	upstream	f4d51dff	abf9ba4f	.config	log	report	syz
ci-upstream-kasan-gce-selinux-root	2019/12/23 09:43	upstream	c6017471	8b967267	.config	log	report	syz
ci-upstream-kasan-gce-root	2019/07/29 05:18	upstream	a9815a4f	c85e1c5b	.config	log	report	syz
ci-upstream-kasan-gce-selinux-root	2019/07/29 04:26	upstream	a9815a4f	c85e1c5b	.config	log	report	syz
ci-upstream-kasan-gce-smack-root	2019/07/29 04:23	upstream	a9815a4f	c85e1c5b	.config	log	report	syz
ci-upstream-kasan-gce-smack-root	2019/06/23 02:46	upstream	abf02e29	34bf9440	.config	log	report	syz
ci-upstream-kasan-gce-selinux-root	2019/06/22 21:46	upstream	abf02e29	34bf9440	.config	log	report	syz
ci-upstream-kasan-gce-root	2019/06/22 20:34	upstream	abf02e29	34bf9440	.config	log	report	syz
ci-upstream-kasan-gce-selinux-root	2019/04/14 00:47	upstream	6d0a5984	c402d8f1	.config	log	report	syz
ci-upstream-kasan-gce-smack-root	2019/04/13 02:14	upstream	8ee15f32	c402d8f1	.config	log	report	syz
ci-upstream-kasan-gce-selinux-root	2019/04/12 23:24	upstream	8ee15f32	c402d8f1	.config	log	report	syz
ci-upstream-kasan-gce-root	2019/04/12 22:44	upstream	8ee15f32	c402d8f1	.config	log	report	syz
ci-upstream-kasan-gce-selinux-root	2019/02/25 02:38	upstream	c3619a48	7a06e792	.config	log	report	syz
ci-upstream-kasan-gce-smack-root	2019/02/24 21:56	upstream	c3619a48	7a06e792	.config	log	report	syz
ci-upstream-kasan-gce-root	2019/02/24 21:51	upstream	c3619a48	7a06e792	.config	log	report	syz
ci-upstream-kasan-gce-smack-root	2018/12/03 17:13	upstream	25956467	819002b0	.config	log	report	syz
ci-upstream-kasan-gce-root	2018/12/03 09:53	upstream	6a512726	7dcaeaf3	.config	log	report	syz
ci-upstream-kasan-gce-selinux-root	2018/12/03 08:48	upstream	6a512726	7dcaeaf3	.config	log	report	syz
ci-upstream-kasan-gce-selinux-root	2018/11/27 20:53	upstream	ef78e5ec	4b6d14f2	.config	log	report	syz
ci-upstream-kasan-gce-smack-root	2018/11/27 17:28	upstream	ef78e5ec	4b6d14f2	.config	log	report	syz
ci-upstream-kasan-gce-root	2018/11/27 10:55	upstream	6f8b52ba	ac912200	.config	log	report	syz
ci-upstream-kasan-gce-root	2018/11/23 19:41	upstream	edeca3a7	2b0dc848	.config	log	report	syz
ci-upstream-kasan-gce-selinux-root	2018/11/23 17:57	upstream	edeca3a7	2b0dc848	.config	log	report	syz
ci-upstream-kasan-gce-smack-root	2018/09/23 18:21	upstream	328c6333	37079712	.config	log	report	syz
ci-upstream-kasan-gce-root	2018/09/23 18:16	upstream	328c6333	37079712	.config	log	report	syz
ci-upstream-linux-next-kasan-gce-root	2020/09/21 10:21	linux-next	b652d2a5	9564d2e9	.config	log	report	syz
ci-upstream-linux-next-kasan-gce-root	2019/07/30 10:21	linux-next	70f4b4ac	f28bf2a5	.config	log	report	syz
ci-upstream-linux-next-kasan-gce-root	2019/06/30 07:38	linux-next	48568d8c	7509bf36	.config	log	report	syz
ci-upstream-linux-next-kasan-gce-root	2019/04/14 19:49	linux-next	bcb67f0f	505ab413	.config	log	report	syz
ci-upstream-linux-next-kasan-gce-root	2019/04/13 01:02	linux-next	bcb67f0f	c402d8f1	.config	log	report	syz
ci-upstream-linux-next-kasan-gce-root	2019/02/24 21:46	linux-next	94a47529	7a06e792	.config	log	report	syz
ci-upstream-linux-next-kasan-gce-root	2019/01/15 11:21	linux-next	5aa6589e	ebacf5cb	.config	log	report	syz
ci-upstream-linux-next-kasan-gce-root	2018/12/03 08:54	linux-next	442b8cea	7dcaeaf3	.config	log	report	syz
ci-upstream-linux-next-kasan-gce-root	2018/11/28 05:21	linux-next	442b8cea	4b6d14f2	.config	log	report	syz
ci-upstream-linux-next-kasan-gce-root	2018/11/23 17:56	linux-next	442b8cea	2b0dc848	.config	log	report	syz
ci-upstream-linux-next-kasan-gce-root	2018/09/23 18:30	linux-next	46c163a0	37079712	.config	log	report	syz
ci-qemu-upstream	2021/03/10 20:02	upstream	280d542f	764067f3	.config	log	report			info	WARNING in ext4_set_page_dirty
ci-qemu-upstream	2021/03/10 00:39	upstream	280d542f	26967e35	.config	log	report			info	WARNING in ext4_set_page_dirty
ci-qemu-upstream	2021/03/09 21:01	upstream	280d542f	26967e35	.config	log	report			info	WARNING in ext4_set_page_dirty
ci-qemu-upstream	2021/03/09 13:40	upstream	280d542f	09fbf400	.config	log	report			info	WARNING in ext4_set_page_dirty
ci-qemu-upstream	2021/03/09 08:25	upstream	280d542f	09fbf400	.config	log	report			info	WARNING in ext4_set_page_dirty
ci-qemu-upstream	2021/03/09 05:35	upstream	280d542f	09fbf400	.config	log	report			info	WARNING in ext4_set_page_dirty
ci-qemu-upstream	2021/03/07 11:14	upstream	280d542f	c599ed12	.config	log	report			info	WARNING in ext4_set_page_dirty
ci-qemu-upstream	2021/03/05 11:00	upstream	280d542f	9d751681	.config	log	report			info	WARNING in ext4_set_page_dirty
ci-qemu-upstream-386	2021/03/24 23:46	upstream	4ee998b0	607e3baf	.config	log	report			info	WARNING in ext4_set_page_dirty
ci-qemu-upstream-386	2021/03/22 01:43	upstream	5ee96fa9	4c9a64da	.config	log	report			info	WARNING in ext4_set_page_dirty
ci-qemu-upstream-386	2021/02/27 18:10	upstream	5ceabb60	4c37c133	.config	log	report			info	WARNING in ext4_set_page_dirty
ci-upstream-net-this-kasan-gce	2021/02/21 01:05	net	3af409ca	3e5ed8b4	.config	log	report			info	WARNING in ext4_set_page_dirty
ci-upstream-net-this-kasan-gce	2021/02/13 14:24	net	57baf8cc	98682e5e	.config	log	report			info	WARNING in ext4_set_page_dirty
ci-upstream-net-kasan-gce	2021/02/15 07:52	net-next	c48f8607	98682e5e	.config	log	report			info	WARNING in ext4_set_page_dirty
ci-upstream-kasan-gce-root	2020/12/12 21:30	upstream	7b1b868e	bca53db9	.config	log	report			info
ci-qemu-upstream	2020/11/12 11:37	upstream	3d5e28bf	77a55c8e	.config	log	report			info
ci-upstream-kasan-gce	2020/09/04 01:45	upstream	e28f0104	abf9ba4f	.config	log	report
ci-upstream-kasan-gce-smack-root	2020/08/07 07:03	upstream	d6efb3ac	1f122f88	.config	log	report
ci-upstream-kasan-gce-selinux-root	2020/07/24 13:04	upstream	f37e99ac	554af388	.config	log	report
ci-upstream-kasan-gce-smack-root	2020/05/12 10:30	upstream	152036d1	160c7698	.config	log	report
ci-upstream-kasan-gce-smack-root	2020/05/06 19:14	upstream	3c40cdb0	4618eb2d	.config	log	report
ci-upstream-kasan-gce-selinux-root	2020/01/22 21:26	upstream	d96d875e	8eda0b95	.config	log	report
ci-upstream-kasan-gce-root	2020/01/09 15:56	upstream	b07f636f	ddc3e859	.config	log	report
ci-upstream-kasan-gce-root	2018/03/31 21:22	upstream	10b84dad	0174c6c8	.config	log	report
ci-upstream-kasan-gce-386	2019/08/30 07:24	upstream	6525771f	fd37b39e	.config	log	report
ci-upstream-net-this-kasan-gce	2020/03/19 10:18	net	3c025b63	2c31c529	.config	log	report
ci-upstream-net-this-kasan-gce	2020/03/18 11:24	net	d36963b8	97bc55ce	.config	log	report
ci-upstream-net-this-kasan-gce	2019/12/26 07:18	net	7f936f2a	be5c2c81	.config	log	report
ci-upstream-net-this-kasan-gce	2019/12/25 19:58	net	7f936f2a	be5c2c81	.config	log	report
ci-upstream-net-this-kasan-gce	2019/12/08 12:43	net	0fc75219	1508f453	.config	log	report
ci-upstream-net-kasan-gce	2020/04/27 11:28	net-next	3fd8dc26	0ce7569e	.config	log	report
ci-upstream-net-kasan-gce	2020/03/24 05:11	net-next	6919a826	33e14df3	.config	log	report
ci-upstream-net-kasan-gce	2020/03/23 06:56	net-next	09984483	78267cec	.config	log	report
ci-upstream-net-kasan-gce	2020/03/21 01:12	net-next	0d7043f3	2c31c529	.config	log	report
ci-upstream-net-kasan-gce	2020/03/20 21:58	net-next	0d7043f3	2c31c529	.config	log	report
ci-upstream-net-kasan-gce	2020/03/20 10:41	net-next	3fd177cb	2c31c529	.config	log	report
ci-upstream-net-kasan-gce	2020/03/20 00:15	net-next	79e28519	2c31c529	.config	log	report
ci-upstream-net-kasan-gce	2020/02/15 14:34	net-next	2019fc96	5d7b90f1	.config	log	report
ci-upstream-net-kasan-gce	2020/02/03 19:18	net-next	9f68e365	93e5e335	.config	log	report
ci-upstream-net-kasan-gce	2020/01/28 18:12	net-next	f76e4c16	c8e81ce4	.config	log	report
ci-upstream-net-kasan-gce	2019/12/30 11:02	net-next	1a1fda57	af6b8ef8	.config	log	report
ci-upstream-net-kasan-gce	2019/12/28 05:18	net-next	9e41fbf3	be5c2c81	.config	log	report
ci-upstream-net-kasan-gce	2019/12/27 17:40	net-next	1f4f16fa	be5c2c81	.config	log	report
ci-upstream-net-kasan-gce	2019/12/26 09:37	net-next	9f6cff99	be5c2c81	.config	log	report
ci-upstream-net-kasan-gce	2019/12/25 23:17	net-next	af779778	be5c2c81	.config	log	report
ci-upstream-net-kasan-gce	2019/12/25 00:27	net-next	ac80010f	be5c2c81	.config	log	report
ci-upstream-net-kasan-gce	2019/12/08 20:42	net-next	596cf45c	1508f453	.config	log	report
ci-upstream-net-kasan-gce	2019/12/07 02:38	net-next	596cf45c	85f26751	.config	log	report
ci-upstream-linux-next-kasan-gce-root	2020/09/07 19:00	linux-next	7a695657	abf9ba4f	.config	log	report
ci-upstream-linux-next-kasan-gce-root	2020/08/12 18:54	linux-next	bc09acc9	bc15f7db	.config	log	report
ci-upstream-linux-next-kasan-gce-root	2020/03/04 07:41	linux-next	c99b17ac	c88c7b75	.config	log	report
ci-upstream-linux-next-kasan-gce-root	2020/02/19 03:37	linux-next	02815e77	135c18aa	.config	log	report