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general protection fault in xfrmi_decode_session

Status: upstream: reported C repro on 2019/04/10 14:34
Reported-by: syzbot+e10b6610bfc30a9e12e6@syzkaller.appspotmail.com
First crash: 2082d, last: 668d
Fix bisection: failed (error log, bisect log)
  
▶ ▼ Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream general protection fault in xfrmi_decode_session C done 16694 2059d 2131d 12/28 fixed on 2019/05/27 12:48
▶ ▼ Fix bisection attempts (2)
Created Duration User Patch Repo Result
2020/10/12 15:55 3m bisect fix linux-4.19.y error job log
2020/03/19 10:52 27m bisect fix linux-4.19.y OK (0) job log log

Sample crash report:
batman_adv: batadv0: Interface activated: batadv_slave_1
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
syz-executor333 uses obsolete (PF_INET,SOCK_PACKET)
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 8101 Comm: syz-executor333 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:read_pnet include/net/net_namespace.h:307 [inline]
RIP: 0010:xs_net include/net/xfrm.h:253 [inline]
RIP: 0010:xfrmi_decode_session+0x146/0x770 net/xfrm/xfrm_interface.c:94
Code: 7c dc 10 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 f4 05 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5c dc 10 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 c7 05 00 00 4c 8b 23 e8 a8 22 51 fa e8 33 9c 62
RSP: 0018:ffff8880b161f2c8 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff86ffedb3
RDX: 0000000000000000 RSI: ffffffff86ffe8b0 RDI: ffff8880abd73788
RBP: 0000000000000039 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000000 R12: ffff8880abd73780
R13: 000000000000003e R14: ffff8880afbc0740 R15: 0000000000000000
FS:  00005555558b2300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fda31d64150 CR3: 000000009ea7e000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __xfrm_policy_check+0x1eb/0x2300 net/xfrm/xfrm_policy.c:2339
 __xfrm_policy_check2 include/net/xfrm.h:1202 [inline]
 xfrm_policy_check include/net/xfrm.h:1207 [inline]
 xfrm6_policy_check include/net/xfrm.h:1217 [inline]
 vti6_rcv+0x4f3/0x910 net/ipv6/ip6_vti.c:315
 xfrm6_esp_rcv+0xc8/0x220 net/ipv6/xfrm6_protocol.c:74
 ip6_input_finish+0x46a/0x17a0 net/ipv6/ip6_input.c:385
 NF_HOOK include/linux/netfilter.h:289 [inline]
 ip6_input+0xcf/0x3c0 net/ipv6/ip6_input.c:428
 ip6_mc_input+0x399/0xa80 net/ipv6/ip6_input.c:505
 dst_input include/net/dst.h:461 [inline]
 ip6_rcv_finish+0x1d9/0x2f0 net/ipv6/ip6_input.c:76
 NF_HOOK include/linux/netfilter.h:289 [inline]
 ipv6_rcv+0xf2/0x3f0 net/ipv6/ip6_input.c:273
 __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:4954
 __netif_receive_skb+0x27/0x1c0 net/core/dev.c:5066
 netif_receive_skb_internal+0xf0/0x3f0 net/core/dev.c:5156
 napi_frags_finish net/core/dev.c:5684 [inline]
 napi_gro_frags+0x67b/0x990 net/core/dev.c:5757
 tun_get_user+0x3029/0x5100 drivers/net/tun.c:1957
 tun_chr_write_iter+0xdb/0x1d0 drivers/net/tun.c:2007
 call_write_iter include/linux/fs.h:1821 [inline]
 new_sync_write fs/read_write.c:474 [inline]
 __vfs_write+0x51b/0x770 fs/read_write.c:487
 vfs_write+0x1f3/0x540 fs/read_write.c:549
 ksys_write+0x12b/0x2a0 fs/read_write.c:599
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7fda31cec6e9
Code: 28 c3 e8 4a 15 00 00 66 2e 0f 1f 84 00 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff8f8cbd58 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fff8f8cbd68 RCX: 00007fda31cec6e9
RDX: 000000000000007e RSI: 0000000020000380 RDI: 0000000000000003
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff8f8cbd70
R13: 00007fff8f8cbd90 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace 47429329c0232ac7 ]---
RIP: 0010:read_pnet include/net/net_namespace.h:307 [inline]
RIP: 0010:xs_net include/net/xfrm.h:253 [inline]
RIP: 0010:xfrmi_decode_session+0x146/0x770 net/xfrm/xfrm_interface.c:94
Code: 7c dc 10 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 f4 05 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5c dc 10 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 c7 05 00 00 4c 8b 23 e8 a8 22 51 fa e8 33 9c 62
RSP: 0018:ffff8880b161f2c8 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff86ffedb3
RDX: 0000000000000000 RSI: ffffffff86ffe8b0 RDI: ffff8880abd73788
RBP: 0000000000000039 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000000 R12: ffff8880abd73780
R13: 000000000000003e R14: ffff8880afbc0740 R15: 0000000000000000
FS:  00005555558b2300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fda31d64150 CR3: 000000009ea7e000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	7c dc                	jl     0xffffffde
   2:	10 48 89             	adc    %cl,-0x77(%rax)
   5:	fa                   	cli
   6:	48 c1 ea 03          	shr    $0x3,%rdx
   a:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1)
   e:	0f 85 f4 05 00 00    	jne    0x608
  14:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  1b:	fc ff df
  1e:	49 8b 5c dc 10       	mov    0x10(%r12,%rbx,8),%rbx
  23:	48 89 da             	mov    %rbx,%rdx
  26:	48 c1 ea 03          	shr    $0x3,%rdx
* 2a:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1) <-- trapping instruction
  2e:	0f 85 c7 05 00 00    	jne    0x5fb
  34:	4c 8b 23             	mov    (%rbx),%r12
  37:	e8 a8 22 51 fa       	callq  0xfa5122e4
  3c:	e8                   	.byte 0xe8
  3d:	33                   	.byte 0x33
  3e:	9c                   	pushfq
  3f:	62                   	.byte 0x62

Crashes (4360):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2022/11/23 23:47 linux-4.19.y 3f8a27f9e27b 52fdf57a .config console log report syz C [disk image] [vmlinux] ci2-linux-4-19 general protection fault in xfrmi_decode_session
2020/07/23 11:11 linux-4.19.y 20b3a3dfdf6c 340ea530 .config console log report syz C ci2-linux-4-19
2020/06/25 15:33 linux-4.19.y a39e75458e1c c7b4497a .config console log report syz C ci2-linux-4-19
2020/06/09 05:26 linux-4.19.y 106fa147d3da 0d60b78a .config console log report syz C ci2-linux-4-19
2019/12/24 00:38 linux-4.19.y 672481c2deff be5c2c81 .config console log report syz C ci2-linux-4-19
2019/12/21 00:04 linux-4.19.y 7d120bf21c05 34011c05 .config console log report syz C ci2-linux-4-19
2019/12/15 09:01 linux-4.19.y 312017a460d5 eef6e580 .config console log report syz C ci2-linux-4-19
2019/10/29 18:12 linux-4.19.y ef244c308885 5ea87a66 .config console log report syz C ci2-linux-4-19
2019/10/28 13:14 linux-4.19.y c3038e718a19 25bb509e .config console log report syz C ci2-linux-4-19
2019/10/25 22:32 linux-4.19.y c3038e718a19 04ca72cd .config console log report syz C ci2-linux-4-19
2019/10/20 01:20 linux-4.19.y c3038e718a19 8c88c9c1 .config console log report syz C ci2-linux-4-19
2019/08/06 00:44 linux-4.19.y b3060a1a313f 6affd8e8 .config console log report syz C ci2-linux-4-19
2019/08/04 13:19 linux-4.19.y b3060a1a313f 6affd8e8 .config console log report syz C ci2-linux-4-19
2019/06/16 07:54 linux-4.19.y 7aa823a959e1 442206d7 .config console log report syz C ci2-linux-4-19
2019/05/04 05:11 linux-4.19.y a03957ab0fd5 d28f4ce5 .config console log report syz C ci2-linux-4-19
2019/04/30 05:28 linux-4.19.y 19bb613acb9a b617407b .config console log report syz C ci2-linux-4-19
2019/04/23 12:54 linux-4.19.y c98875d930e9 53199d6e .config console log report syz C ci2-linux-4-19
2019/04/10 14:56 linux-4.19.y 4d552acf3370 65b612b7 .config console log report syz C ci2-linux-4-19
2023/02/21 23:33 linux-4.19.y 3f8a27f9e27b 42a4d508 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 general protection fault in xfrmi_decode_session
2023/02/05 03:49 linux-4.19.y 3f8a27f9e27b be607b78 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 general protection fault in xfrmi_decode_session
2022/12/03 15:27 linux-4.19.y 3f8a27f9e27b e080de16 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 general protection fault in xfrmi_decode_session
2022/12/02 06:04 linux-4.19.y 3f8a27f9e27b e080de16 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 general protection fault in xfrmi_decode_session
2022/12/02 04:47 linux-4.19.y 3f8a27f9e27b e080de16 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 general protection fault in xfrmi_decode_session
2022/11/23 23:30 linux-4.19.y 3f8a27f9e27b 52fdf57a .config console log report info [disk image] [vmlinux] ci2-linux-4-19 general protection fault in xfrmi_decode_session
2020/09/12 15:55 linux-4.19.y a87f96283793 21d289c2 .config console log report ci2-linux-4-19
2020/09/11 04:03 linux-4.19.y 67957f12548c ac7ca78e .config console log report ci2-linux-4-19
2020/09/10 21:14 linux-4.19.y 67957f12548c ac7ca78e .config console log report ci2-linux-4-19
2020/09/10 17:33 linux-4.19.y 67957f12548c ac7ca78e .config console log report ci2-linux-4-19
2020/09/10 08:06 linux-4.19.y 67957f12548c ac7ca78e .config console log report ci2-linux-4-19
2020/09/10 00:00 linux-4.19.y 67957f12548c ac7ca78e .config console log report ci2-linux-4-19
2020/09/09 20:36 linux-4.19.y 67957f12548c ac7ca78e .config console log report ci2-linux-4-19
2020/09/09 15:15 linux-4.19.y c37da90efff5 0ea7a887 .config console log report ci2-linux-4-19
2020/09/09 10:04 linux-4.19.y c37da90efff5 0ea7a887 .config console log report ci2-linux-4-19
2020/09/09 07:08 linux-4.19.y c37da90efff5 0ea7a887 .config console log report ci2-linux-4-19
2020/09/09 04:56 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/09 01:35 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/08 23:28 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/08 22:06 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/08 19:00 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/08 17:43 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/08 13:36 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/08 10:22 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/08 10:21 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/08 09:17 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/08 01:14 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/07 18:08 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/07 15:07 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/07 12:29 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/07 05:26 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/07 01:54 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/06 23:41 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/06 21:37 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/06 20:54 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/06 19:24 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/06 18:11 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/06 13:20 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/06 08:43 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/06 05:18 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/06 02:01 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/05 22:34 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/05 21:01 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/05 19:57 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/05 17:55 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/05 16:03 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/05 08:14 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/05 06:22 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/05 06:02 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/05 04:13 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/05 03:01 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/04 19:56 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2020/09/04 18:45 linux-4.19.y c37da90efff5 abf9ba4f .config console log report ci2-linux-4-19
2019/04/10 14:33 linux-4.19.y 4d552acf3370 65b612b7 .config console log report ci2-linux-4-19
* Struck through repros no longer work on HEAD.