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: 29768 Comm: syz-executor.1 Not tainted 5.6.0-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:538 [inline] RIP: 0010:can_rx_register+0x313/0x650 net/can/af_can.c:476 Code: ee 03 49 89 4f 30 80 3c 16 00 0f 85 d6 02 00 00 48 8b 4c 24 18 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 9d 02 00 00 48 ba 00 00 00 00 00 fc ff df 4c 89 RSP: 0018:ffffc900084dfc10 EFLAGS: 00010202 RAX: 0000000000000008 RBX: 0000000000000000 RCX: ffff8880595ba000 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff8880a88b46c8 RBP: ffff8880a419d100 R08: ffff888056980140 R09: fffff5200109bf75 R10: 0000000000000003 R11: fffff5200109bf74 R12: 0000000000000000 R13: 1ffff9200109bf87 R14: ffff8880891edad0 R15: ffff8880a88b4690 FS: 00007fef70444700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8fdaaaf4f8 CR3: 000000009e879000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: raw_enable_filters+0xe2/0x200 net/can/raw.c:189 raw_enable_allfilters+0x86/0x1e0 net/can/raw.c:255 raw_bind+0x2b7/0x910 net/can/raw.c:428 __sys_bind+0x20e/0x250 net/socket.c:1662 __do_sys_bind net/socket.c:1673 [inline] __se_sys_bind net/socket.c:1671 [inline] __x64_sys_bind+0x6f/0xb0 net/socket.c:1671 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x49/0xb3 RIP: 0033:0x45c889 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:00007fef70443c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 RAX: ffffffffffffffda RBX: 00007fef704446d4 RCX: 000000000045c889 RDX: 0000000000000010 RSI: 0000000020004240 RDI: 0000000000000004 RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000031 R14: 00000000004c2d6a R15: 000000000076bfac Modules linked in: ---[ end trace e3c821fffca48b8e ]--- RIP: 0010:hlist_add_head_rcu include/linux/rculist.h:538 [inline] RIP: 0010:can_rx_register+0x313/0x650 net/can/af_can.c:476 Code: ee 03 49 89 4f 30 80 3c 16 00 0f 85 d6 02 00 00 48 8b 4c 24 18 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 9d 02 00 00 48 ba 00 00 00 00 00 fc ff df 4c 89 RSP: 0018:ffffc900084dfc10 EFLAGS: 00010202 RAX: 0000000000000008 RBX: 0000000000000000 RCX: ffff8880595ba000 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff8880a88b46c8 RBP: ffff8880a419d100 R08: ffff888056980140 R09: fffff5200109bf75 R10: 0000000000000003 R11: fffff5200109bf74 R12: 0000000000000000 R13: 1ffff9200109bf87 R14: ffff8880891edad0 R15: ffff8880a88b4690 FS: 00007fef70444700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8fdaaaf4f8 CR3: 000000009e879000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400