WARNING in _

WARNING in __vunmap
Status: upstream: reported C repro on 2019/02/16 07:01
Reported-by: syzbot+5ec9bb042ddfe9644773@syzkaller.appspotmail.com
First crash: 1216d, last: 4d07h

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	602d	681d	0/1	auto-closed as invalid on 2020/05/25 23:55
linux-4.19	WARNING in __vunmap (2)	syz		error	15	54d	377d	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 (ffffc90002bc9000)
WARNING: CPU: 0 PID: 8497 at mm/vmalloc.c:2567 __vunmap+0x150/0xb70 mm/vmalloc.c:2567
Modules linked in:
CPU: 1 PID: 8497 Comm: syz-executor174 Not tainted 5.14.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__vunmap+0x150/0xb70 mm/vmalloc.c:2567
Code: 85 78 ff ff ff e8 20 b0 c4 ff 48 c7 c7 c0 7c a9 8b e8 44 ed 7b 07 e8 0f b0 c4 ff 4c 89 e6 48 c7 c7 e0 bb 96 89 e8 c1 05 37 07 <0f> 0b 48 83 c4 38 5b 5d 41 5c 41 5d 41 5e 41 5f e9 eb af c4 ff e8
RSP: 0018:ffffc900023b72d8 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff888028c00000 RSI: ffffffff815d7935 RDI: fffff52000476e4d
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815d176e R11: 0000000000000000 R12: ffffc90002bc9000
R13: ffff8880253d20c0 R14: ffffc90002bc9000 R15: ffffe8ffffc338a8
FS:  00007fcdcc063700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcdcc084718 CR3: 00000000159f1000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __vfree+0x3c/0xd0 mm/vmalloc.c:2635
 vfree+0x5a/0x90 mm/vmalloc.c:2666
 ipcomp_free_scratches+0xc4/0x160 net/xfrm/xfrm_ipcomp.c:203
 ipcomp_free_data net/xfrm/xfrm_ipcomp.c:312 [inline]
 ipcomp_init_state+0x77c/0xa40 net/xfrm/xfrm_ipcomp.c:364
 ipcomp6_init_state+0xc2/0x700 net/ipv6/ipcomp6.c:154
 __xfrm_init_state+0x995/0x15c0 net/xfrm/xfrm_state.c:2648
 xfrm_state_construct net/xfrm/xfrm_user.c:627 [inline]
 xfrm_add_sa+0x1ef1/0x35f0 net/xfrm/xfrm_user.c:684
 xfrm_user_rcv_msg+0x42c/0x8b0 net/xfrm/xfrm_user.c:2812
 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2504
 xfrm_netlink_rcv+0x6b/0x90 net/xfrm/xfrm_user.c:2824
 netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline]
 netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1340
 netlink_sendmsg+0x86d/0xdb0 net/netlink/af_netlink.c:1929
 sock_sendmsg_nosec net/socket.c:703 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:723
 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2392
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2446
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2475
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x445b99
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fcdcc063318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00000000004ca428 RCX: 0000000000445b99
RDX: 0000000000000000 RSI: 0000000020000800 RDI: 0000000000000004
RBP: 00000000004ca420 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004ca42c
R13: 00007ffec83642cf R14: 00007fcdcc063400 R15: 0000000000022000

Crashes (123):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Title
ci-upstream-kasan-gce	2021/08/04 05:34	upstream	d5ad8ec3cfb5	6c236867	.config	log	report	syz	C		WARNING in __vunmap
ci-upstream-kasan-gce	2021/09/01 13:33	upstream	9c849ce86e0f	7eb7e152	.config	log	report	syz			WARNING in __vunmap
ci-upstream-kasan-gce-selinux-root	2021/07/19 19:09	upstream	2734d6c1b1a0	e6a17580	.config	log	report	syz			WARNING in __vunmap
ci-upstream-kasan-gce-smack-root	2021/06/06 22:18	upstream	f5b6eb1e0182	500c2339	.config	log	report	syz			WARNING in __vunmap
ci-upstream-kasan-gce-root	2021/06/02 20:30	upstream	231bc5390667	0740de69	.config	log	report	syz			WARNING in __vunmap
ci-upstream-kasan-gce-selinux-root	2021/03/30 09:12	upstream	1e43c377a79f	6a81331a	.config	log	report	syz			WARNING in __vunmap
ci-upstream-kasan-gce-smack-root	2021/02/18 15:00	upstream	f40ddce88593	14052202	.config	log	report	syz			WARNING in __vunmap
ci-upstream-kasan-gce	2021/01/23 16:21	upstream	fe75a21824e7	52e37319	.config	log	report	syz			WARNING in __vunmap
ci-upstream-net-this-kasan-gce	2021/06/01 04:52	net	593f555fbc60	032639db	.config	log	report	syz			WARNING in __vunmap
ci-upstream-linux-next-kasan-gce-root	2021/06/28 00:03	linux-next	a1f92694393a	9d2ab5df	.config	log	report	syz			WARNING in __vunmap
ci-upstream-linux-next-kasan-gce-root	2021/04/06 04:06	linux-next	454c576c3f5e	6a81331a	.config	log	report	syz			WARNING in __vunmap
ci-upstream-kasan-gce-root	2020/08/11 15:51	upstream	00e4db51259a	bacaf5fa	.config	log	report	syz
ci-upstream-kasan-gce-root	2019/09/12 22:20	upstream	ad32b4800c2b	0b7672ee	.config	log	report	syz
ci-upstream-kasan-gce	2019/09/12 10:40	upstream	3120b9a6a3f7	f4e53c10	.config	log	report	syz
ci-upstream-kasan-gce-selinux-root	2019/09/11 09:45	upstream	3120b9a6a3f7	a60cb4cd	.config	log	report	syz
ci-upstream-kasan-gce-smack-root	2019/09/08 07:04	upstream	b3a9964cfa69	a60cb4cd	.config	log	report	syz
ci-upstream-net-this-kasan-gce	2020/08/07 15:37	net	8912fd6a61d7	cb436c69	.config	log	report	syz
ci-upstream-net-this-kasan-gce	2019/09/11 10:13	net	f794dc2304d8	a60cb4cd	.config	log	report	syz
ci-upstream-net-kasan-gce	2020/08/07 18:32	net-next	bfdd5aaa54b0	cb436c69	.config	log	report	syz
ci-upstream-linux-next-kasan-gce-root	2020/08/13 07:20	linux-next	bc09acc9f224	bc15f7db	.config	log	report	syz
ci-upstream-kasan-gce-selinux-root	2021/09/10 12:44	upstream	bf9f243f23e6	5ae8508a	.config	log	report			info	WARNING in __vunmap
ci-upstream-kasan-gce-smack-root	2021/09/04 00:34	upstream	7cca308cfdc0	d236a457	.config	log	report			info	WARNING in __vunmap
ci-upstream-kasan-gce-root	2021/08/22 23:32	upstream	1bdc3d5be7e1	b599f2fc	.config	log	report			info	WARNING in __vunmap
ci-upstream-kasan-gce-selinux-root	2021/07/19 05:21	upstream	2734d6c1b1a0	f115ae98	.config	log	report			info	WARNING in __vunmap
ci-upstream-kasan-gce-selinux-root	2021/07/16 15:57	upstream	d936eb238744	f115ae98	.config	log	report			info	WARNING in __vunmap
ci-upstream-kasan-gce-selinux-root	2021/07/13 22:07	upstream	40226a3d96ef	fa0594c3	.config	log	report			info	WARNING in __vunmap
ci-upstream-kasan-gce-smack-root	2021/06/22 20:56	upstream	0c18f29aae7c	aba2b2fb	.config	log	report			info	WARNING in __vunmap
ci-upstream-kasan-gce	2021/04/27 09:14	upstream	4a0225c3d208	805b5003	.config	log	report			info	WARNING in __vunmap
ci-upstream-kasan-gce-root	2021/04/04 22:39	upstream	e49d033bddf5	6a81331a	.config	log	report			info	WARNING in __vunmap
ci-upstream-kasan-gce	2021/02/24 07:04	upstream	c03c21ba6f4e	fcc6d71b	.config	log	report			info	WARNING in __vunmap
ci-upstream-kasan-gce	2021/02/21 18:34	upstream	55f62bc87347	a659b3f1	.config	log	report			info	WARNING in __vunmap
ci-upstream-kasan-gce	2021/01/29 16:47	upstream	bec4c2968fce	6593fd32	.config	log	report			info	WARNING in __vunmap
ci-upstream-kasan-gce-386	2021/04/27 05:46	upstream	4a0225c3d208	805b5003	.config	log	report			info	WARNING in __vunmap
ci-upstream-kasan-gce-386	2021/04/19 08:48	upstream	bf05bf16c76b	7e2b734b	.config	log	report			info	WARNING in __vunmap
ci-upstream-kasan-gce-386	2021/04/17 22:24	upstream	194cf4825638	7e2b734b	.config	log	report			info	WARNING in __vunmap
ci-upstream-kasan-gce-386	2021/04/07 04:46	upstream	2d743660786e	6a81331a	.config	log	report			info	WARNING in __vunmap
ci-upstream-kasan-gce-386	2021/03/01 01:07	upstream	06d5d309a3f1	4c37c133	.config	log	report			info	WARNING in __vunmap
ci-upstream-kasan-gce-386	2021/02/05 15:35	upstream	dd86e7fa07a3	23a562df	.config	log	report			info	WARNING in __vunmap
ci-upstream-kasan-gce-386	2021/01/20 08:39	upstream	45dfb8a5659a	63631df1	.config	log	report			info	WARNING in __vunmap
ci-upstream-net-this-kasan-gce	2021/08/30 08:00	net	57f780f1c433	be2c130d	.config	log	report			info	WARNING in __vunmap
ci-upstream-net-this-kasan-gce	2021/05/25 00:39	net	4dd649d130c6	3c7fef33	.config	log	report			info	WARNING in __vunmap
ci-upstream-net-kasan-gce	2021/09/16 01:38	net-next	5706383b30cf	07e953c1	.config	log	report			info	WARNING in __vunmap
ci-upstream-net-kasan-gce	2021/09/05 15:56	net-next	29ce8f970107	d236a457	.config	log	report			info	WARNING in __vunmap
ci-upstream-net-kasan-gce	2021/08/15 16:39	net-next	e4637f621203	2489ab88	.config	log	report			info	WARNING in __vunmap
ci-upstream-net-kasan-gce	2021/06/03 20:13	net-next	270d47dc1fc4	0740de69	.config	log	report			info	WARNING in __vunmap
ci-upstream-net-kasan-gce	2021/05/26 23:16	net-next	c7a551b2e44a	858ea628	.config	log	report			info	WARNING in __vunmap
ci-upstream-net-kasan-gce	2021/05/10 22:52	net-next	48de7c0c1c92	ca873091	.config	log	report			info	WARNING in __vunmap
ci-upstream-net-kasan-gce	2021/04/29 08:16	net-next	95aafe911db6	77e2b668	.config	log	report			info	WARNING in __vunmap
ci-upstream-net-kasan-gce	2021/04/07 17:02	net-next	be107538c529	6a81331a	.config	log	report			info	WARNING in __vunmap
ci-upstream-net-kasan-gce	2021/04/06 00:43	net-next	514e1150da9c	6a81331a	.config	log	report			info	WARNING in __vunmap
ci-upstream-net-kasan-gce	2021/02/18 07:22	net-next	b646acd5eb48	14052202	.config	log	report			info	WARNING in __vunmap
ci-upstream-linux-next-kasan-gce-root	2021/07/30 02:36	linux-next	4ccc9e2db7ac	c585c7b0	.config	log	report			info	WARNING in __vunmap
ci-upstream-kasan-gce-selinux-root	2020/12/22 04:24	upstream	8653b778e454	04201c06	.config	log	report			info
ci-upstream-kasan-gce-selinux-root	2020/10/29 08:37	upstream	23859ae44402	f24824d3	.config	log	report			info
ci-upstream-kasan-gce-selinux-root	2020/10/06 02:04	upstream	7575fdda569b	1880b4a9	.config	log	report			info
ci-upstream-kasan-gce-smack-root	2020/09/10 13:34	upstream	34d4ddd359db	409809d8	.config	log	report
ci-upstream-kasan-gce	2020/08/17 03:21	upstream	4b6c093e21d3	424dd8e7	.config	log	report
ci-upstream-kasan-gce	2020/08/12 18:19	upstream	fb893de323e2	bc15f7db	.config	log	report
ci-upstream-kasan-gce-root	2018/05/22 18:50	upstream	a048a07d7f45	f48c20b8	.config	log	report
ci-upstream-net-this-kasan-gce	2020/09/29 16:12	net	1aad8049909a	1b88c6d5	.config	log	report			info
ci-upstream-net-kasan-gce	2020/12/22 23:14	net-next	3db1a3fa9880	04201c06	.config	log	report			info
ci-upstream-net-kasan-gce	2020/11/15 04:56	net-next	07cbce2e466c	1bf9a662	.config	log	report			info
ci-upstream-net-kasan-gce	2020/09/10 16:56	net-next	4f6a5caf187f	409809d8	.config	log	report
ci-upstream-net-kasan-gce	2020/09/07 09:37	net-next	02a20d4fef3d	abf9ba4f	.config	log	report
ci-upstream-net-kasan-gce	2020/08/10 01:15	net-next	bfdd5aaa54b0	70301872	.config	log	report
ci-upstream-net-kasan-gce	2020/08/09 18:30	net-next	bfdd5aaa54b0	70301872	.config	log	report
ci-upstream-net-kasan-gce	2020/07/20 20:07	net-next	7dce80c2a526	4285ffa3	.config	log	report
ci-upstream-linux-next-kasan-gce-root	2021/01/11 12:56	linux-next	ef8b014ee4a1	2c1f2513	.config	log	report			info
ci-upstream-linux-next-kasan-gce-root	2020/12/01 02:25	linux-next	c6b11acc5f85	b3a34598	.config	log	report			info
ci-upstream-linux-next-kasan-gce-root	2020/09/16 21:07	linux-next	5fa35f247b56	18d7d030	.config	log	report			info
ci-upstream-linux-next-kasan-gce-root	2020/08/11 15:22	linux-next	4c9b89d8981b	bacaf5fa	.config	log	report