WARNING in _

WARNING in __vunmap
Status: upstream: reported syz repro on 2019/02/16 07:01
Reported-by: syzbot+5ec9bb042ddfe9644773@syzkaller.appspotmail.com
First crash: 1019d, last: 6d02h

Cause bisection: failed (bisect log)

Fix bisection: failed (bisect log)

similar bugs (2):
Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-4.19	WARNING in __vunmap				3	405d	484d	0/1	auto-closed as invalid on 2020/05/25 23:55
linux-4.19	WARNING in __vunmap (2)	syz		error	6	83d	180d	0/1	upstream: reported syz repro on 2020/09/07 13:09

Patch testing requests:
Created	Duration	User	Patch	Repo	Result
2019/09/12 17:00	16m	xiyou.wangcong@gmail.com		https://github.com/congwang/linux.git xfrm2	report log
2019/09/12 00:29	16m	xiyou.wangcong@gmail.com		https://github.com/congwang/linux.git xfrm	OK

Sample crash report:

------------[ cut here ]------------
Trying to vfree() nonexistent vm area (000000009b44cc4d)
WARNING: CPU: 0 PID: 25828 at mm/vmalloc.c:2268 __vunmap+0x13f/0xa60 mm/vmalloc.c:2267
Modules linked in:
CPU: 0 PID: 25828 Comm: syz-executor.3 Not tainted 5.11.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__vunmap+0x13f/0xa60 mm/vmalloc.c:2267
Code: 2b e8 75 3c c7 ff eb 05 e8 6e 3c c7 ff 48 c7 c7 40 93 7c 8c e8 62 4a 9a 07 48 c7 c7 a0 f8 ba 89 4c 89 f6 31 c0 e8 11 af 96 ff <0f> 0b 48 83 c4 58 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 c7 c7 40 93
RSP: 0018:ffffc9000aa47620 EFLAGS: 00010246
RAX: a21d6b71b0f29700 RBX: ffffc9000aa69000 RCX: ffff88803ef69bc0
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff815fb522 R09: ffffed10173860b8
R10: ffffed10173860b8 R11: 0000000000000000 R12: 1ffffffff1b672bd
R13: dffffc0000000000 R14: ffffc9000aa69000 R15: ffff88803fa23480
FS:  00007f8ee8344700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f07fda66000 CR3: 000000003d25c000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ipcomp_free_scratches net/xfrm/xfrm_ipcomp.c:212 [inline]
 ipcomp_free_data+0x13f/0x1f0 net/xfrm/xfrm_ipcomp.c:321
 ipcomp_init_state+0x825/0x910 net/xfrm/xfrm_ipcomp.c:373
 ipcomp4_init_state+0xb4/0xa60 net/ipv4/ipcomp.c:134
 __xfrm_init_state+0x71c/0xb60 net/xfrm/xfrm_state.c:2607
 xfrm_state_construct net/xfrm/xfrm_user.c:627 [inline]
 xfrm_add_sa+0x234e/0x3ab0 net/xfrm/xfrm_user.c:684
 xfrm_user_rcv_msg+0x5fd/0x7f0 net/xfrm/xfrm_user.c:2812
 netlink_rcv_skb+0x190/0x3a0 net/netlink/af_netlink.c:2494
 xfrm_netlink_rcv+0x70/0x80 net/xfrm/xfrm_user.c:2824
 netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline]
 netlink_unicast+0x786/0x940 net/netlink/af_netlink.c:1330
 netlink_sendmsg+0x9ae/0xd50 net/netlink/af_netlink.c:1919
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg net/socket.c:672 [inline]
 ____sys_sendmsg+0x519/0x800 net/socket.c:2345
 ___sys_sendmsg net/socket.c:2399 [inline]
 __sys_sendmsg+0x2bf/0x370 net/socket.c:2432
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x465d99
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8ee8344188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000056c008 RCX: 0000000000465d99
RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000003
RBP: 00000000004bcf27 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c008
R13: 00007ffdaaeeab9f R14: 00007f8ee8344300 R15: 0000000000022000

Crashes (89):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	VM info	Title
ci-upstream-kasan-gce-smack-root	2021/02/18 15:00	upstream	f40ddce8	14052202	.config	log	report	syz		WARNING in __vunmap
ci-upstream-kasan-gce	2021/01/23 16:21	upstream	fe75a218	52e37319	.config	log	report	syz		WARNING in __vunmap
ci-upstream-kasan-gce-root	2020/08/11 15:51	upstream	00e4db51	bacaf5fa	.config	log	report	syz
ci-upstream-kasan-gce-root	2019/09/12 22:20	upstream	ad32b480	0b7672ee	.config	log	report	syz
ci-upstream-kasan-gce	2019/09/12 10:40	upstream	3120b9a6	f4e53c10	.config	log	report	syz
ci-upstream-kasan-gce-selinux-root	2019/09/11 09:45	upstream	3120b9a6	a60cb4cd	.config	log	report	syz
ci-upstream-kasan-gce-smack-root	2019/09/08 07:04	upstream	b3a9964c	a60cb4cd	.config	log	report	syz
ci-upstream-net-this-kasan-gce	2020/08/07 15:37	net	8912fd6a	cb436c69	.config	log	report	syz
ci-upstream-net-this-kasan-gce	2019/09/11 10:13	net	f794dc23	a60cb4cd	.config	log	report	syz
ci-upstream-net-kasan-gce	2020/08/07 18:32	net-next	bfdd5aaa	cb436c69	.config	log	report	syz
ci-upstream-linux-next-kasan-gce-root	2020/08/13 07:20	linux-next	bc09acc9	bc15f7db	.config	log	report	syz
ci-upstream-kasan-gce	2021/02/24 07:04	upstream	c03c21ba	fcc6d71b	.config	log	report		info	WARNING in __vunmap
ci-upstream-kasan-gce	2021/02/21 18:34	upstream	55f62bc8	a659b3f1	.config	log	report		info	WARNING in __vunmap
ci-upstream-kasan-gce	2021/01/29 16:47	upstream	bec4c296	6593fd32	.config	log	report		info	WARNING in __vunmap
ci-upstream-kasan-gce-386	2021/03/01 01:07	upstream	06d5d309	4c37c133	.config	log	report		info	WARNING in __vunmap
ci-upstream-kasan-gce-386	2021/02/05 15:35	upstream	dd86e7fa	23a562df	.config	log	report		info	WARNING in __vunmap
ci-upstream-kasan-gce-386	2021/01/20 08:39	upstream	45dfb8a5	63631df1	.config	log	report		info	WARNING in __vunmap
ci-upstream-net-kasan-gce	2021/02/18 07:22	net-next	b646acd5	14052202	.config	log	report		info	WARNING in __vunmap
ci-upstream-kasan-gce-selinux-root	2020/12/22 04:24	upstream	8653b778	04201c06	.config	log	report		info
ci-upstream-kasan-gce-selinux-root	2020/10/29 08:37	upstream	23859ae4	f24824d3	.config	log	report		info
ci-upstream-kasan-gce-selinux-root	2020/10/06 02:04	upstream	7575fdda	1880b4a9	.config	log	report		info
ci-upstream-kasan-gce-smack-root	2020/09/10 13:34	upstream	34d4ddd3	409809d8	.config	log	report
ci-upstream-kasan-gce	2020/08/17 03:21	upstream	4b6c093e	424dd8e7	.config	log	report
ci-upstream-kasan-gce	2020/08/12 18:19	upstream	fb893de3	bc15f7db	.config	log	report
ci-upstream-kasan-gce	2020/07/18 04:33	upstream	88825726	9c812472	.config	log	report
ci-upstream-kasan-gce-selinux-root	2020/07/15 00:21	upstream	e9919e11	609fb517	.config	log	report
ci-upstream-kasan-gce-root	2020/03/01 16:49	upstream	63623fd4	c88c7b75	.config	log	report
ci-upstream-kasan-gce-root	2020/02/27 06:58	upstream	f8788d86	59b57593	.config	log	report
ci-upstream-kasan-gce	2020/02/26 02:42	upstream	f8788d86	59b57593	.config	log	report
ci-upstream-kasan-gce	2020/02/25 22:59	upstream	f8788d86	59b57593	.config	log	report
ci-upstream-kasan-gce-root	2020/02/20 05:47	upstream	4b205766	b690a6e3	.config	log	report
ci-upstream-kasan-gce-root	2020/02/04 20:01	upstream	33b40134	93e5e335	.config	log	report
ci-upstream-kasan-gce-root	2020/01/25 09:43	upstream	d5d359b0	2e95ab33	.config	log	report
ci-upstream-kasan-gce-selinux-root	2019/12/07 21:28	upstream	ad910e36	1508f453	.config	log	report
ci-upstream-kasan-gce-smack-root	2019/11/24 15:26	upstream	6b8a7946	598ca6c8	.config	log	report
ci-upstream-kasan-gce	2019/11/07 16:20	upstream	4dd58158	d797d201	.config	log	report
ci-upstream-kasan-gce	2019/09/25 01:21	upstream	4c07e2dd	0942eab8	.config	log	report
ci-upstream-kasan-gce-root	2018/05/22 18:50	upstream	a048a07d	f48c20b8	.config	log	report
ci-upstream-kasan-gce-386	2020/05/27 05:33	upstream	444fc5cd	9072c126	.config	log	report
ci-upstream-net-this-kasan-gce	2020/09/29 16:12	net	1aad8049	1b88c6d5	.config	log	report		info
ci-upstream-net-this-kasan-gce	2020/05/07 19:47	net	a811c1fa	98cbd87b	.config	log	report
ci-upstream-net-this-kasan-gce	2020/04/26 11:05	net	167ff131	99b258dd	.config	log	report
ci-upstream-net-this-kasan-gce	2020/03/04 02:25	net	3614d05b	c88c7b75	.config	log	report
ci-upstream-net-this-kasan-gce	2020/02/20 14:47	net	41f57cfd	81230308	.config	log	report
ci-upstream-net-this-kasan-gce	2020/01/21 21:51	net	80892772	8eda0b95	.config	log	report
ci-upstream-net-this-kasan-gce	2020/01/15 06:42	net	f8d7408a	fa12bd3c	.config	log	report
ci-upstream-net-this-kasan-gce	2020/01/09 16:13	net	2f806c2a	ddc3e859	.config	log	report
ci-upstream-net-this-kasan-gce	2019/11/14 01:17	net	5aa4277d	048f2d49	.config	log	report
ci-upstream-net-this-kasan-gce	2018/07/21 21:06	net	c1f897ce	8cc079c3	.config	log	report
ci-upstream-net-kasan-gce	2020/12/22 23:14	net-next	3db1a3fa	04201c06	.config	log	report		info
ci-upstream-net-kasan-gce	2020/11/15 04:56	net-next	07cbce2e	1bf9a662	.config	log	report		info
ci-upstream-net-kasan-gce	2020/09/10 16:56	net-next	4f6a5caf	409809d8	.config	log	report
ci-upstream-net-kasan-gce	2020/09/07 09:37	net-next	02a20d4f	abf9ba4f	.config	log	report
ci-upstream-net-kasan-gce	2020/08/10 01:15	net-next	bfdd5aaa	70301872	.config	log	report
ci-upstream-net-kasan-gce	2020/08/09 18:30	net-next	bfdd5aaa	70301872	.config	log	report
ci-upstream-net-kasan-gce	2020/07/20 20:07	net-next	7dce80c2	4285ffa3	.config	log	report
ci-upstream-net-kasan-gce	2020/03/16 03:48	net-next	5d0ab06b	749688d2	.config	log	report
ci-upstream-net-kasan-gce	2020/02/15 20:50	net-next	2019fc96	5d7b90f1	.config	log	report
ci-upstream-net-kasan-gce	2020/02/04 18:03	net-next	33b40134	93e5e335	.config	log	report
ci-upstream-net-kasan-gce	2020/01/11 03:23	net-next	9f120e76	4de4e9f0	.config	log	report
ci-upstream-net-kasan-gce	2019/12/03 01:11	net-next	596cf45c	ab342da3	.config	log	report
ci-upstream-net-kasan-gce	2018/08/26 00:02	net-next	2ad0d526	76e7c3df	.config	log	report
ci-upstream-linux-next-kasan-gce-root	2021/01/11 12:56	linux-next	ef8b014e	2c1f2513	.config	log	report		info
ci-upstream-linux-next-kasan-gce-root	2020/12/01 02:25	linux-next	c6b11acc	b3a34598	.config	log	report		info
ci-upstream-linux-next-kasan-gce-root	2020/09/16 21:07	linux-next	5fa35f24	18d7d030	.config	log	report		info
ci-upstream-linux-next-kasan-gce-root	2020/08/11 15:22	linux-next	4c9b89d8	bacaf5fa	.config	log	report
ci-upstream-linux-next-kasan-gce-root	2020/02/05 16:34	linux-next	2747d5fd	662cf49a	.config	log	report
ci-upstream-linux-next-kasan-gce-root	2020/01/15 21:22	linux-next	5b483a1a	f9b69507	.config	log	report