Code: 47 01 00 85 c0 b8 00 00 00 00 48 0f 44 c3 5b c3 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe8f7e4098 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f35603a9ad9 RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000004 RBP: 00007ffe8f7e40b0 R08: 0000000000000001 R09: 00007ffe8f7e4140 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 R13: 0000000000000000 R14: 00007ffe8f7e40b0 R15: 0000000000000000 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: 366 Comm: syz-executor000 Not tainted 5.10.83-syzkaller-00311-g6e6898e23cab #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:klist_iter_exit+0x2b/0x100 lib/klist.c:313 Code: 48 89 e5 41 57 41 56 41 55 41 54 53 50 49 89 ff 49 bc 00 00 00 00 00 fc ff df e8 d0 7b fa fe 49 83 c7 08 4d 89 fd 49 c1 ed 03 <43> 80 7c 25 00 00 74 08 4c 89 ff e8 45 50 34 ff 4d 8b 37 4d 85 f6 RSP: 0018:ffffc90000ba71f8 EFLAGS: 00010202 RAX: ffffffff82726000 RBX: 0000000000000000 RCX: ffff8881071dcf00 RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000000 RBP: ffffc90000ba7228 R08: dffffc0000000000 R09: fffff52000174e3d R10: fffff52000174e3d R11: 0000000000000000 R12: dffffc0000000000 R13: 0000000000000001 R14: ffff8881049f1398 R15: 0000000000000008 FS: 0000555556e2a300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000100 CR3: 000000011cde1000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: class_dev_iter_exit+0x15/0x20 drivers/base/class.c:330 nfc_device_iter_exit net/nfc/nfc.h:121 [inline] nfc_genl_dump_devices_done+0x3b/0x50 net/nfc/netlink.c:639 genl_lock_done+0x84/0xd0 net/netlink/genetlink.c:636 netlink_dump+0x90a/0xc30 net/netlink/af_netlink.c:2311 __netlink_dump_start+0x5ba/0x7d0 net/netlink/af_netlink.c:2381 genl_family_rcv_msg_dumpit net/netlink/genetlink.c:686 [inline] genl_family_rcv_msg net/netlink/genetlink.c:780 [inline] genl_rcv_msg+0xbe1/0x1480 net/netlink/genetlink.c:800 netlink_rcv_skb+0x200/0x470 net/netlink/af_netlink.c:2502 genl_rcv+0x28/0x40 net/netlink/genetlink.c:811 netlink_unicast_kernel net/netlink/af_netlink.c:1311 [inline] netlink_unicast+0x814/0x9f0 net/netlink/af_netlink.c:1337 netlink_sendmsg+0xa20/0xe00 net/netlink/af_netlink.c:1927 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg net/socket.c:672 [inline] ____sys_sendmsg+0x5b9/0x910 net/socket.c:2343 ___sys_sendmsg net/socket.c:2397 [inline] __sys_sendmsg+0x384/0x470 net/socket.c:2430 __do_sys_sendmsg net/socket.c:2439 [inline] __se_sys_sendmsg net/socket.c:2437 [inline] __x64_sys_sendmsg+0x7f/0x90 net/socket.c:2437 do_syscall_64+0x31/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f35603a9ad9 Code: 47 01 00 85 c0 b8 00 00 00 00 48 0f 44 c3 5b c3 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe8f7e4098 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f35603a9ad9 RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000004 RBP: 00007ffe8f7e40b0 R08: 0000000000000001 R09: 00007ffe8f7e4140 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 R13: 0000000000000000 R14: 00007ffe8f7e40b0 R15: 0000000000000000 Modules linked in: ---[ end trace ab1a67f7f7a6f4cf ]--- RIP: 0010:klist_iter_exit+0x2b/0x100 lib/klist.c:313 Code: 48 89 e5 41 57 41 56 41 55 41 54 53 50 49 89 ff 49 bc 00 00 00 00 00 fc ff df e8 d0 7b fa fe 49 83 c7 08 4d 89 fd 49 c1 ed 03 <43> 80 7c 25 00 00 74 08 4c 89 ff e8 45 50 34 ff 4d 8b 37 4d 85 f6 RSP: 0018:ffffc90000ba71f8 EFLAGS: 00010202 RAX: ffffffff82726000 RBX: 0000000000000000 RCX: ffff8881071dcf00 RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000000 RBP: ffffc90000ba7228 R08: dffffc0000000000 R09: fffff52000174e3d R10: fffff52000174e3d R11: 0000000000000000 R12: dffffc0000000000 R13: 0000000000000001 R14: ffff8881049f1398 R15: 0000000000000008 FS: 0000555556e2a300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f35603be4e0 CR3: 000000011cde1000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 47 01 00 rex.RXB add %r8d,(%r8) 3: 85 c0 test %eax,%eax 5: b8 00 00 00 00 mov $0x0,%eax a: 48 0f 44 c3 cmove %rbx,%rax e: 5b pop %rbx f: c3 retq 10: 90 nop 11: 48 89 f8 mov %rdi,%rax 14: 48 89 f7 mov %rsi,%rdi 17: 48 89 d6 mov %rdx,%rsi 1a: 48 89 ca mov %rcx,%rdx 1d: 4d 89 c2 mov %r8,%r10 20: 4d 89 c8 mov %r9,%r8 23: 4c 8b 4c 24 08 mov 0x8(%rsp),%r9 28: 0f 05 syscall * 2a: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction 30: 73 01 jae 0x33 32: c3 retq 33: 48 c7 c1 c0 ff ff ff mov $0xffffffffffffffc0,%rcx 3a: f7 d8 neg %eax 3c: 64 89 01 mov %eax,%fs:(%rcx) 3f: 48 rex.W