general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 1 PID: 9549 Comm: syz-executor.1 Not tainted 5.9.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:hlist_add_head_rcu include/linux/rculist.h:561 [inline] RIP: 0010:can_rx_register+0x325/0x6a0 net/can/af_can.c:477 Code: 49 89 4f 30 80 3c 16 00 0f 85 11 03 00 00 48 8b 8d 30 ff ff ff 48 89 c6 48 ba 00 00 00 00 00 fc ff df 48 c1 ee 03 49 89 4f 38 <80> 3c 16 00 0f 85 d0 02 00 00 48 ba 00 00 00 00 00 fc ff df 4c 89 RSP: 0018:ffffc9000c99fbd0 EFLAGS: 00010202 RAX: 0000000000000008 RBX: 0000000000000000 RCX: ffff8880a66c6000 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff888090830578 RBP: ffffc9000c99fcb0 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88809f8a3600 R13: 0000000000000000 R14: ffffc9000c99fc88 R15: ffff888090830540 FS: 00007fb6c2709700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004bff5a CR3: 000000009efcf000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: raw_enable_filters+0xe8/0x210 net/can/raw.c:189 raw_enable_allfilters+0x89/0x2a0 net/can/raw.c:255 raw_bind+0x74e/0xb00 net/can/raw.c:428 __sys_bind+0x213/0x290 net/socket.c:1656 __do_sys_bind net/socket.c:1667 [inline] __se_sys_bind net/socket.c:1665 [inline] __x64_sys_bind+0x73/0xb0 net/socket.c:1665 do_syscall_64+0x32/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45b079 Code: 2d 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 fb b5 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fb6c2708c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 RAX: ffffffffffffffda RBX: 00007fb6c27096d4 RCX: 000000000045b079 RDX: 0000000000000008 RSI: 0000000020000180 RDI: 0000000000000003 RBP: 000000000075c070 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000031 R14: 00000000004c148d R15: 000000000075c07c Modules linked in: ---[ end trace e4413c254f107dfb ]--- RIP: 0010:hlist_add_head_rcu include/linux/rculist.h:561 [inline] RIP: 0010:can_rx_register+0x325/0x6a0 net/can/af_can.c:477 Code: 49 89 4f 30 80 3c 16 00 0f 85 11 03 00 00 48 8b 8d 30 ff ff ff 48 89 c6 48 ba 00 00 00 00 00 fc ff df 48 c1 ee 03 49 89 4f 38 <80> 3c 16 00 0f 85 d0 02 00 00 48 ba 00 00 00 00 00 fc ff df 4c 89 RSP: 0018:ffffc9000c99fbd0 EFLAGS: 00010202 RAX: 0000000000000008 RBX: 0000000000000000 RCX: ffff8880a66c6000 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff888090830578 RBP: ffffc9000c99fcb0 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88809f8a3600 R13: 0000000000000000 R14: ffffc9000c99fc88 R15: ffff888090830540 FS: 00007fb6c2709700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004bff5a CR3: 000000009efcf000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400