KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2

KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range (3)
Status: auto-closed as invalid on 2021/06/09 03:35
Reported-by: syzbot+09166b76b415b8869254@syzkaller.appspotmail.com
First crash: 358d, last: 43d

similar bugs (2):
Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range (2)				36	367d	564d	0/22	closed as invalid on 2020/06/18 14:24
upstream	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range				1	597d	597d	0/22	closed as invalid on 2019/11/19 13:44

Sample crash report:

==================================================================
BUG: KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range

write to 0xffff8881061f1500 of 8 bytes by task 5705 on cpu 0:
 __add_to_page_cache_locked+0x298/0x520 mm/filemap.c:930
 add_to_page_cache_lru+0xa0/0x1b0 mm/filemap.c:983
 page_cache_ra_unbounded+0x262/0x410 mm/readahead.c:221
 ondemand_readahead+0x579/0x7b0 mm/readahead.c:267
 page_cache_sync_ra+0xaf/0xe0 mm/readahead.c:578
 page_cache_sync_readahead include/linux/pagemap.h:874 [inline]
 filemap_get_pages mm/filemap.c:2483 [inline]
 filemap_read+0x388/0x1230 mm/filemap.c:2566
 generic_file_read_iter+0x75/0x2c0 mm/filemap.c:2717
 ext4_file_read_iter+0x1db/0x290 fs/ext4/file.c:73
 call_read_iter include/linux/fs.h:2110 [inline]
 generic_file_splice_read+0x22a/0x310 fs/splice.c:311
 do_splice_to fs/splice.c:796 [inline]
 splice_direct_to_actor+0x2aa/0x650 fs/splice.c:870
 do_splice_direct+0xf5/0x170 fs/splice.c:979
 do_sendfile+0x773/0xda0 fs/read_write.c:1260
 __do_sys_sendfile64 fs/read_write.c:1325 [inline]
 __se_sys_sendfile64 fs/read_write.c:1311 [inline]
 __x64_sys_sendfile64+0xf2/0x130 fs/read_write.c:1311
 do_syscall_64+0x4a/0x90 arch/x86/entry/common.c:47
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffff8881061f1500 of 8 bytes by task 5717 on cpu 1:
 invalidate_inode_pages2_range+0x42/0x6e0 mm/truncate.c:636
 __iomap_dio_rw+0x69a/0xad0 fs/iomap/direct-io.c:543
 iomap_dio_rw+0x30/0x70 fs/iomap/direct-io.c:649
 ext4_dio_write_iter fs/ext4/file.c:568 [inline]
 ext4_file_write_iter+0xa04/0x11d0 fs/ext4/file.c:678
 call_write_iter include/linux/fs.h:2116 [inline]
 do_iter_readv_writev+0x2cb/0x360 fs/read_write.c:740
 do_iter_write+0x112/0x4c0 fs/read_write.c:866
 vfs_iter_write+0x4c/0x70 fs/read_write.c:907
 iter_file_splice_write+0x40a/0x750 fs/splice.c:689
 do_splice_from fs/splice.c:767 [inline]
 direct_splice_actor+0x80/0xa0 fs/splice.c:936
 splice_direct_to_actor+0x345/0x650 fs/splice.c:891
 do_splice_direct+0xf5/0x170 fs/splice.c:979
 do_sendfile+0x773/0xda0 fs/read_write.c:1260
 __do_sys_sendfile64 fs/read_write.c:1325 [inline]
 __se_sys_sendfile64 fs/read_write.c:1311 [inline]
 __x64_sys_sendfile64+0xf2/0x130 fs/read_write.c:1311
 do_syscall_64+0x4a/0x90 arch/x86/entry/common.c:47
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 5717 Comm: syz-executor.4 Not tainted 5.12.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
==================================================================

Crashes (172):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	VM info	Title
ci2-upstream-kcsan-gce	2021/05/05 03:34	upstream	d665ea6e	06c27ff5	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/04/28 11:32	upstream	e359bce3	77e2b668	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/04/26 09:21	upstream	9f4ad9e4	805b5003	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/04/25 18:54	upstream	d2d09fbe	36c88236	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/04/25 10:15	upstream	2a1d7946	36c88236	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/04/22 17:03	upstream	16fc44d6	33c28d03	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/04/21 01:05	upstream	1fe5501b	c0ced557	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/04/18 09:44	upstream	c98ff1d0	7e2b734b	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/04/17 07:13	upstream	9cdbf646	7e2b734b	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/04/13 22:48	upstream	eebe426d	a184b83e	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/04/12 23:19	upstream	89698bec	6a81331a	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/03/31 20:07	upstream	d19cc4bf	6a81331a	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/03/29 23:58	upstream	1e43c377	6a81331a	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/03/24 20:11	upstream	4ee998b0	607e3baf	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/03/23 08:16	upstream	84196390	8092f30d	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/03/19 21:56	upstream	8b12a62a	3d01c4de	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/03/13 02:34	upstream	f296bfd5	429d8a6b	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/03/11 06:07	upstream	a74e6a01	c2ca1f2a	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/02/24 16:45	upstream	c03c21ba	fcc6d71b	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/02/14 16:50	upstream	358fecee	98682e5e	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/02/13 08:55	upstream	c6d8570e	98682e5e	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/02/11 01:39	upstream	291009f6	a52ee10a	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/02/07 01:40	upstream	964d069f	0655e081	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/02/06 12:00	upstream	1e0d27fc	0655e081	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/02/05 02:57	upstream	5c279c4c	23a562df	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/02/04 13:16	upstream	61556703	42b90a7c	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/02/01 01:47	upstream	1048ba83	fc9fd31e	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/01/31 13:12	upstream	6642d600	fc9fd31e	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/01/30 23:41	upstream	8c947645	fc9fd31e	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/01/29 19:47	upstream	bec4c296	fc9fd31e	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/01/29 09:20	upstream	bec4c296	6593fd32	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/01/28 18:48	upstream	76c057c8	7df34f59	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/01/27 21:00	upstream	76c057c8	a57db36f	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/01/27 18:41	upstream	2ab38c17	a57db36f	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/01/27 08:13	upstream	2ab38c17	a0ebf917	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/01/26 16:54	upstream	13391c60	55a7d4df	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/01/26 12:27	upstream	13391c60	52e37319	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/01/18 23:12	upstream	1e2a199f	63631df1	.config	log	report	info	KCSAN: data-race in __add_to_page_cache_locked / invalidate_inode_pages2_range
ci2-upstream-kcsan-gce	2021/01/16 21:20	upstream	54c6247d	65a7a854	.config	log	report	info
ci2-upstream-kcsan-gce	2021/01/15 01:58	upstream	14662050	468dbb55	.config	log	report	info
ci2-upstream-kcsan-gce	2021/01/13 23:54	upstream	65f0d241	269d24e8	.config	log	report	info
ci2-upstream-kcsan-gce	2021/01/13 12:58	upstream	e609571b	a945f0a3	.config	log	report	info
ci2-upstream-kcsan-gce	2021/01/11 11:25	upstream	7c53f6b6	2c1f2513	.config	log	report	info
ci2-upstream-kcsan-gce	2021/01/09 23:30	upstream	2ff90100	2c1f2513	.config	log	report	info
ci2-upstream-kcsan-gce	2020/09/14 06:53	upstream	84b13499	2d3cdd63	.config	log	report
ci2-upstream-kcsan-gce	2020/09/13 22:36	upstream	84b13499	2d3cdd63	.config	log	report
ci2-upstream-kcsan-gce	2020/06/24 01:44	upstream	3e08a952	bbad15ae	.config	log	report