general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 0 PID: 3608 Comm: syz-executor219 Not tainted 6.0.0-rc1-syzkaller-00025-g274a2eebf80c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 RIP: 0010:hlist_add_head_rcu include/linux/rculist.h:587 [inline] RIP: 0010:can_rx_register+0x480/0x660 net/can/af_can.c:477 Code: 8b 6c 24 70 49 89 5f 30 49 8d 7f 38 48 89 f8 48 c1 e8 03 42 80 3c 28 00 74 05 e8 5b d3 9b f8 49 89 6f 38 4c 89 f3 48 c1 eb 03 <42> 80 3c 2b 00 74 08 4c 89 f7 e8 c1 d2 9b f8 4d 8b 26 4c 89 f8 48 RSP: 0018:ffffc900038ffcb8 EFLAGS: 00010202 RAX: 1ffff1100e44be07 RBX: 0000000000000001 RCX: ffff888027638000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88807225f038 RBP: ffff888018226000 R08: ffffffff8941621c R09: fffff5200071ff88 R10: fffff5200071ff89 R11: 1ffff9200071ff88 R12: 0000000000000000 R13: dffffc0000000000 R14: 0000000000000008 R15: ffff88807225f000 FS: 00007fee4cc17700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fac7f82eff8 CR3: 000000001f7af000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: raw_enable_filters net/can/raw.c:193 [inline] raw_enable_allfilters net/can/raw.c:259 [inline] raw_bind+0x352/0xfe0 net/can/raw.c:455 __sys_bind+0x233/0x2e0 net/socket.c:1776 __do_sys_bind net/socket.c:1787 [inline] __se_sys_bind net/socket.c:1785 [inline] __x64_sys_bind+0x76/0x80 net/socket.c:1785 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fee4cc65d19 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fee4cc17318 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 RAX: ffffffffffffffda RBX: 00007fee4cced428 RCX: 00007fee4cc65d19 RDX: 0000000000000010 RSI: 0000000020000040 RDI: 0000000000000003 RBP: 00007fee4cced420 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fee4ccbb064 R13: 00007ffe7f6d3b7f R14: 00007fee4cc17400 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:hlist_add_head_rcu include/linux/rculist.h:587 [inline] RIP: 0010:can_rx_register+0x480/0x660 net/can/af_can.c:477 Code: 8b 6c 24 70 49 89 5f 30 49 8d 7f 38 48 89 f8 48 c1 e8 03 42 80 3c 28 00 74 05 e8 5b d3 9b f8 49 89 6f 38 4c 89 f3 48 c1 eb 03 <42> 80 3c 2b 00 74 08 4c 89 f7 e8 c1 d2 9b f8 4d 8b 26 4c 89 f8 48 RSP: 0018:ffffc900038ffcb8 EFLAGS: 00010202 RAX: 1ffff1100e44be07 RBX: 0000000000000001 RCX: ffff888027638000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88807225f038 RBP: ffff888018226000 R08: ffffffff8941621c R09: fffff5200071ff88 R10: fffff5200071ff89 R11: 1ffff9200071ff88 R12: 0000000000000000 R13: dffffc0000000000 R14: 0000000000000008 R15: ffff88807225f000 FS: 00007fee4cc17700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fac7f82eff8 CR3: 000000001f7af000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 8b 6c 24 70 mov 0x70(%rsp),%ebp 4: 49 89 5f 30 mov %rbx,0x30(%r15) 8: 49 8d 7f 38 lea 0x38(%r15),%rdi c: 48 89 f8 mov %rdi,%rax f: 48 c1 e8 03 shr $0x3,%rax 13: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1) 18: 74 05 je 0x1f 1a: e8 5b d3 9b f8 callq 0xf89bd37a 1f: 49 89 6f 38 mov %rbp,0x38(%r15) 23: 4c 89 f3 mov %r14,%rbx 26: 48 c1 eb 03 shr $0x3,%rbx * 2a: 42 80 3c 2b 00 cmpb $0x0,(%rbx,%r13,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 4c 89 f7 mov %r14,%rdi 34: e8 c1 d2 9b f8 callq 0xf89bd2fa 39: 4d 8b 26 mov (%r14),%r12 3c: 4c 89 f8 mov %r15,%rax 3f: 48 rex.W