KCSAN: data-race in __lru_add_drain_all / folio_add

KCSAN: data-race in __lru_add_drain_all / folio_add_lru
Status: moderation: reported on 2021/12/14 17:42
Reported-by: syzbot+d676f4fcc6452f55d1d0@syzkaller.appspotmail.com
First crash: 86d, last: 6h12m

Sample crash report:

EXT4-fs (loop3): ext4_check_descriptors: Block bitmap for group 0 not in group (block 2)!
EXT4-fs (loop3): group descriptors corrupted!
==================================================================
BUG: KCSAN: data-race in __lru_add_drain_all / folio_add_lru

write to 0xffff888237d27998 of 1 bytes by task 15280 on cpu 1:
 pagevec_add include/linux/pagevec.h:75 [inline]
 pagevec_add_and_need_flush mm/swap.c:236 [inline]
 folio_add_lru+0x62/0x160 mm/swap.c:468
 lru_cache_add+0x37/0x50 mm/folio-compat.c:108
 lru_cache_add_inactive_or_unevictable+0x46/0x140 mm/swap.c:500
 wp_page_copy+0x779/0x10e0 mm/memory.c:3070
 do_wp_page+0x4fb/0xa80
 handle_pte_fault mm/memory.c:4588 [inline]
 __handle_mm_fault mm/memory.c:4705 [inline]
 handle_mm_fault+0x975/0x1590 mm/memory.c:4803
 do_user_addr_fault+0x617/0xb90 arch/x86/mm/fault.c:1397
 handle_page_fault arch/x86/mm/fault.c:1484 [inline]
 exc_page_fault+0x91/0x290 arch/x86/mm/fault.c:1540
 asm_exc_page_fault+0x1e/0x30

read to 0xffff888237d27998 of 1 bytes by task 15257 on cpu 0:
 pagevec_count include/linux/pagevec.h:62 [inline]
 __lru_add_drain_all+0x12c/0x3e0 mm/swap.c:835
 lru_add_drain_all+0xc/0x10 mm/swap.c:857
 invalidate_bdev+0x56/0x80 block/bdev.c:87
 invalidate_disk+0x25/0xb0 block/genhd.c:651
 __loop_clr_fd+0x3d1/0x5d0 drivers/block/loop.c:1142
 loop_clr_fd drivers/block/loop.c:1231 [inline]
 lo_ioctl+0xa33/0x1280 drivers/block/loop.c:1558
 blkdev_ioctl+0x20e/0x440 block/ioctl.c:588
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl+0xcb/0x140 fs/ioctl.c:860
 __x64_sys_ioctl+0x3f/0x50 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0x0c -> 0x0f

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 15257 Comm: syz-executor.3 Not tainted 5.17.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
==================================================================

Crashes (114):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	VM info	Title
ci2-upstream-kcsan-gce	2022/01/27 15:24	upstream	626b2dda7651	2cbffd88	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/26 11:58	upstream	0280e3c58f92	2cbffd88	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/25 20:40	upstream	49d766f3a0e4	2cbffd88	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/24 16:18	upstream	dd81e1c7d5fb	214351e1	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/23 15:18	upstream	e783362eb54c	214351e1	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/23 04:58	upstream	1c52283265a4	214351e1	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/22 17:37	upstream	0809edbae347	214351e1	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/21 22:16	upstream	9b57f4589857	214351e1	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/21 08:55	upstream	2c271fe77d52	ab3d9f17	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/19 16:13	upstream	e9f5cbc0c851	0620189b	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/19 09:54	upstream	99613159ad74	0620189b	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/18 22:06	upstream	99613159ad74	731a2d23	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/18 06:28	upstream	e3a8b6a1e70c	731a2d23	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/17 12:06	upstream	0c947b893d69	731a2d23	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/16 23:24	upstream	79e06c4c4950	723cfaf0	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/16 10:28	upstream	d0a231f01e5b	723cfaf0	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/15 18:54	upstream	a33f5c380c4b	723cfaf0	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/15 04:14	upstream	112450df61b7	723cfaf0	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/14 18:00	upstream	871bfa02d08d	53e00b45	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/13 22:16	upstream	455e73a07f6e	b8d780ab	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/13 09:34	upstream	f079ab01b560	44d1319a	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/12 19:44	upstream	daadb3bd0e8d	44d1319a	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/11 23:00	upstream	6f38be8f2ccd	44d1319a	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/11 16:37	upstream	fe8152b38d3a	1884f55a	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/11 02:50	upstream	133d9c53c9dc	ddb0ab8c	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/10 07:11	upstream	df0cc57e057f	2ca0d385	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/09 15:29	upstream	4634129ad9fd	2ca0d385	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/09 01:05	upstream	21f35d2ca83e	2ca0d385	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/08 09:35	upstream	d1587f7bfe9a	2ca0d385	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/07 19:33	upstream	ddec8ed2d490	2ca0d385	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/07 05:25	upstream	b2b436ec0205	6acc789a	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/06 15:46	upstream	75acfdb6fd92	6acc789a	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/06 09:40	upstream	49ef78e59b07	6acc789a	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/05 03:01	upstream	c9e6606c7fe9	0a2584dd	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/03 20:14	upstream	c9e6606c7fe9	4a3f34f2	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/02 23:33	upstream	1286cc4893cf	e1768e9c	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/01 22:07	upstream	278218f6778b	e1768e9c	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2022/01/01 04:51	upstream	800829388818	e1768e9c	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2021/12/31 20:03	upstream	4f3d93c6eaff	36bd2e48	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2021/12/31 00:37	upstream	9bad743e8d22	36bd2e48	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2021/12/30 10:08	upstream	eec4df26e24e	2e49f10d	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2021/12/29 01:12	upstream	ecf71de775a0	76c8cf06	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2021/12/28 20:13	upstream	a8ad9a2434dc	76c8cf06	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2021/12/28 03:06	upstream	a8ad9a2434dc	6b3c5e64	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2021/12/27 15:23	upstream	fc74e0a40e4f	5140bd58	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2021/12/14 16:36	upstream	5472f14a3742	d018dd31	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru
ci2-upstream-kcsan-gce	2021/11/02 13:42	upstream	bfc484fe6abb	098b5d53	.config	log	report	info	KCSAN: data-race in __lru_add_drain_all / folio_add_lru