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: 11192 Comm: syz-executor.4 Not tainted 5.4.0-rc7+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:j1939_sk_send_loop net/can/j1939/socket.c:988 [inline]
RIP: 0010:j1939_sk_sendmsg+0x5e9/0x1430 net/can/j1939/socket.c:1105
Code: 90 e8 7b e5 c2 fa bf f9 06 00 00 4c 89 f6 e8 9e e9 c2 fa 49 81 fe f9 06 00 00 b9 f9 06 00 00 49 0f 42 ce 48 8b 85 18 ff ff ff <42> 80 3c 28 00 48 8b 9d 10 ff ff ff 48 89 4d 98 74 0c 48 89 df e8
RSP: 0018:ffff888082bd7b98 EFLAGS: 00010297
RAX: 0000000000000009 RBX: ffff88808efee548 RCX: 00000000000001f3
RDX: ffff8880a8b626c0 RSI: 00000000000001f3 RDI: 00000000000006f9
RBP: ffff888082bd7c90 R08: ffffffff86b091d2 R09: ffffed1015303721
R10: ffffed1015303721 R11: 0000000000000000 R12: ffff88808efee000
R13: dffffc0000000000 R14: 00000000000001f3 R15: ffff888082bd7dc4
FS:  00007efe53598700(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000bd7fd0 CR3: 00000000a8c61000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 sock_sendmsg_nosec net/socket.c:637 [inline]
 sock_sendmsg net/socket.c:657 [inline]
 ___sys_sendmsg+0x60d/0x910 net/socket.c:2311
 __sys_sendmsg net/socket.c:2356 [inline]
 __do_sys_sendmsg net/socket.c:2365 [inline]
 __se_sys_sendmsg net/socket.c:2363 [inline]
 __x64_sys_sendmsg+0x17c/0x200 net/socket.c:2363
 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45a219
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007efe53597c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a219
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000004
RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007efe535986d4
R13: 00000000004c804e R14: 00000000004de4d0 R15: 00000000ffffffff
Modules linked in:
---[ end trace 6b35d708a5ba4fc6 ]---
RIP: 0010:j1939_sk_send_loop net/can/j1939/socket.c:988 [inline]
RIP: 0010:j1939_sk_sendmsg+0x5e9/0x1430 net/can/j1939/socket.c:1105
Code: 90 e8 7b e5 c2 fa bf f9 06 00 00 4c 89 f6 e8 9e e9 c2 fa 49 81 fe f9 06 00 00 b9 f9 06 00 00 49 0f 42 ce 48 8b 85 18 ff ff ff <42> 80 3c 28 00 48 8b 9d 10 ff ff ff 48 89 4d 98 74 0c 48 89 df e8
RSP: 0018:ffff888082bd7b98 EFLAGS: 00010297
RAX: 0000000000000009 RBX: ffff88808efee548 RCX: 00000000000001f3
RDX: ffff8880a8b626c0 RSI: 00000000000001f3 RDI: 00000000000006f9
RBP: ffff888082bd7c90 R08: ffffffff86b091d2 R09: ffffed1015303721
R10: ffffed1015303721 R11: 0000000000000000 R12: ffff88808efee000
R13: dffffc0000000000 R14: 00000000000001f3 R15: ffff888082bd7dc4
FS:  00007efe53598700(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000bd7fd0 CR3: 00000000a8c61000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400