All of lore.kernel.org
 help / color / mirror / Atom feed
* [syzbot] [can?] WARNING in j1939_xtp_rx_rts (2)
@ 2024-05-06  8:26 syzbot
  0 siblings, 0 replies; only message in thread
From: syzbot @ 2024-05-06  8:26 UTC (permalink / raw)
  To: davem, edumazet, kernel, kuba, linux-can, linux-kernel, mkl,
	netdev, o.rempel, pabeni, robin, socketcan, syzkaller-bugs

Hello,

syzbot found the following issue on:

HEAD commit:    cdc74c9d06e7 Merge branch 'gve-queue-api'
git tree:       net-next
console output: https://syzkaller.appspot.com/x/log.txt?x=17beea2f180000
kernel config:  https://syzkaller.appspot.com/x/.config?x=7c70a227bc928e1b
dashboard link: https://syzkaller.appspot.com/bug?extid=ce5405b9159db688fa37
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/f0df1462721b/disk-cdc74c9d.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/7e5c38fb35eb/vmlinux-cdc74c9d.xz
kernel image: https://storage.googleapis.com/syzbot-assets/8b7652427355/bzImage-cdc74c9d.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+ce5405b9159db688fa37@syzkaller.appspotmail.com

vxcan0: j1939_xtp_rx_abort_one: 0xffff888042069c00: 0x00000: (8) Duplicate sequence number (and software is not able to recover)
vxcan0: j1939_xtp_rx_abort_one: 0xffff88804206a000: 0x00000: (8) Duplicate sequence number (and software is not able to recover)
------------[ cut here ]------------
WARNING: CPU: 1 PID: 11 at net/can/j1939/transport.c:1656 j1939_xtp_rx_rts_session_new net/can/j1939/transport.c:1656 [inline]
WARNING: CPU: 1 PID: 11 at net/can/j1939/transport.c:1656 j1939_xtp_rx_rts+0x13db/0x1930 net/can/j1939/transport.c:1735
Modules linked in:
CPU: 1 PID: 11 Comm: kworker/u8:1 Not tainted 6.9.0-rc6-syzkaller-01478-gcdc74c9d06e7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: krdsd rds_connect_worker
RIP: 0010:j1939_xtp_rx_rts_session_new net/can/j1939/transport.c:1656 [inline]
RIP: 0010:j1939_xtp_rx_rts+0x13db/0x1930 net/can/j1939/transport.c:1735
Code: e8 7a f6 8a f7 e9 d6 f1 ff ff 89 d9 80 e1 07 38 c1 0f 8c ea f1 ff ff 48 89 df e8 60 f6 8a f7 e9 dd f1 ff ff e8 06 fd 25 f7 90 <0f> 0b 90 e9 6d f2 ff ff 89 f9 80 e1 07 38 c1 0f 8c 51 ee ff ff 48
RSP: 0018:ffffc90000a08640 EFLAGS: 00010246
RAX: ffffffff8a702d7a RBX: 00000000fffffff5 RCX: ffff8880172abc00
RDX: 0000000080000100 RSI: 00000000fffffff5 RDI: 0000000000000000
RBP: ffffc90000a087a8 R08: ffffffff8a702aec R09: 1ffffffff25e80c6
R10: dffffc0000000000 R11: fffffbfff25e80c7 R12: dffffc0000000000
R13: ffff888042fab000 R14: 0000000000000014 R15: 00000000000007c6
FS:  0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c000461144 CR3: 000000007cc42000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 j1939_tp_cmd_recv net/can/j1939/transport.c:2057 [inline]
 j1939_tp_recv+0xb84/0x1050 net/can/j1939/transport.c:2144
 j1939_can_recv+0x732/0xb20 net/can/j1939/main.c:112
 deliver net/can/af_can.c:572 [inline]
 can_rcv_filter+0x359/0x7f0 net/can/af_can.c:606
 can_receive+0x327/0x480 net/can/af_can.c:663
 can_rcv+0x144/0x260 net/can/af_can.c:687
 __netif_receive_skb_one_core net/core/dev.c:5625 [inline]
 __netif_receive_skb+0x2e0/0x650 net/core/dev.c:5739
 process_backlog+0x391/0x7d0 net/core/dev.c:6068
 __napi_poll+0xcb/0x490 net/core/dev.c:6722
 napi_poll net/core/dev.c:6791 [inline]
 net_rx_action+0x7bb/0x10a0 net/core/dev.c:6907
 __do_softirq+0x2c6/0x980 kernel/softirq.c:554
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu+0xf2/0x1c0 kernel/softirq.c:633
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:645
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:security_socket_create+0x6e/0xb0 security/security.c:4374
Code: 78 b8 97 fd 48 8b 1b 48 85 db 74 3b 48 8d 6b 18 48 89 e8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 ef e8 56 b8 97 fd 4c 8b 5d 00 <44> 89 ef 44 89 e6 44 89 fa 8b 4c 24 04 41 ff d3 66 90 85 c0 75 10
RSP: 0018:ffffc90000107948 EFLAGS: 00000246
RAX: 1ffffffff1bab1b8 RBX: ffffffff8dd58da8 RCX: ffff8880172abc00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002
RBP: ffffffff8dd58dc0 R08: ffffffff8948d77b R09: 0000000000000001
R10: dffffc0000000000 R11: ffffffff846c8900 R12: 0000000000000001
R13: 0000000000000002 R14: dffffc0000000000 R15: 0000000000000006
 __sock_create+0xc9/0x920 net/socket.c:1526
 rds_tcp_conn_path_connect+0x2bb/0xbc0
 rds_connect_worker+0x1dd/0x2a0 net/rds/threads.c:176
 process_one_work kernel/workqueue.c:3267 [inline]
 process_scheduled_works+0xa10/0x17c0 kernel/workqueue.c:3348
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3429
 kthread+0x2f0/0x390 kernel/kthread.c:388
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
----------------
Code disassembly (best guess):
   0:	78 b8                	js     0xffffffba
   2:	97                   	xchg   %eax,%edi
   3:	fd                   	std
   4:	48 8b 1b             	mov    (%rbx),%rbx
   7:	48 85 db             	test   %rbx,%rbx
   a:	74 3b                	je     0x47
   c:	48 8d 6b 18          	lea    0x18(%rbx),%rbp
  10:	48 89 e8             	mov    %rbp,%rax
  13:	48 c1 e8 03          	shr    $0x3,%rax
  17:	42 80 3c 30 00       	cmpb   $0x0,(%rax,%r14,1)
  1c:	74 08                	je     0x26
  1e:	48 89 ef             	mov    %rbp,%rdi
  21:	e8 56 b8 97 fd       	call   0xfd97b87c
  26:	4c 8b 5d 00          	mov    0x0(%rbp),%r11
* 2a:	44 89 ef             	mov    %r13d,%edi <-- trapping instruction
  2d:	44 89 e6             	mov    %r12d,%esi
  30:	44 89 fa             	mov    %r15d,%edx
  33:	8b 4c 24 04          	mov    0x4(%rsp),%ecx
  37:	41 ff d3             	call   *%r11
  3a:	66 90                	xchg   %ax,%ax
  3c:	85 c0                	test   %eax,%eax
  3e:	75 10                	jne    0x50


---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@googlegroups.com.

syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.

If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title

If you want to overwrite report's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)

If the report is a duplicate of another one, reply with:
#syz dup: exact-subject-of-another-report

If you want to undo deduplication, reply with:
#syz undup

^ permalink raw reply	[flat|nested] only message in thread

only message in thread, other threads:[~2024-05-06  8:26 UTC | newest]

Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2024-05-06  8:26 [syzbot] [can?] WARNING in j1939_xtp_rx_rts (2) syzbot

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.