general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 1 PID: 19839 Comm: syz-executor.2 Not tainted 6.1.0-rc5-syzkaller-00326-g77c51ba552a1 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:__queue_work+0x490/0xd60 kernel/workqueue.c:1459 Code: e5 ff 4c 89 e7 89 c6 e8 0e a2 00 00 49 89 c4 48 89 ef e8 f3 a5 00 00 48 85 c0 0f 84 1a 01 00 00 49 89 c7 4c 89 e0 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 e7 e8 e1 f4 86 00 4d 3b 3c 24 0f 84 07 RSP: 0018:ffffc9000546f210 EFLAGS: 00010046 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff8880b368d7c0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff888083d830f8 R08: ffffffff8aa43874 R09: ffffed10107b0620 R10: ffffed10107b0620 R11: 1ffff110107b061f R12: 0000000000000000 R13: dffffc0000000000 R14: 0000000000000008 R15: ffff888012869800 FS: 00007f80991e5700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffdd538cc98 CR3: 000000017f009000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: queue_work_on+0x137/0x240 kernel/workqueue.c:1545 queue_work include/linux/workqueue.h:503 [inline] nci_send_cmd+0x1e7/0x310 net/nfc/nci/core.c:1376 nci_reset_req net/nfc/nci/core.c:166 [inline] __nci_request net/nfc/nci/core.c:107 [inline] nci_open_device+0x329/0xd00 net/nfc/nci/core.c:502 nfc_dev_up+0x17d/0x320 net/nfc/core.c:118 nfc_genl_dev_up+0x7f/0xc0 net/nfc/netlink.c:770 genl_family_rcv_msg_doit net/netlink/genetlink.c:756 [inline] genl_family_rcv_msg net/netlink/genetlink.c:833 [inline] genl_rcv_msg+0xc02/0xf60 net/netlink/genetlink.c:850 netlink_rcv_skb+0x1f0/0x460 net/netlink/af_netlink.c:2540 genl_rcv+0x24/0x40 net/netlink/genetlink.c:861 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x7e7/0x9c0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x9b3/0xcd0 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x597/0x8e0 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x28e/0x390 net/socket.c:2565 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: 0033:0x7f809848b639 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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:00007f80991e5168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f80985abf80 RCX: 00007f809848b639 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000006 RBP: 00007f80984e6ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc090e11af R14: 00007f80991e5300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__queue_work+0x490/0xd60 kernel/workqueue.c:1459 Code: e5 ff 4c 89 e7 89 c6 e8 0e a2 00 00 49 89 c4 48 89 ef e8 f3 a5 00 00 48 85 c0 0f 84 1a 01 00 00 49 89 c7 4c 89 e0 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 e7 e8 e1 f4 86 00 4d 3b 3c 24 0f 84 07 RSP: 0018:ffffc9000546f210 EFLAGS: 00010046 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff8880b368d7c0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff888083d830f8 R08: ffffffff8aa43874 R09: ffffed10107b0620 R10: ffffed10107b0620 R11: 1ffff110107b061f R12: 0000000000000000 R13: dffffc0000000000 R14: 0000000000000008 R15: ffff888012869800 FS: 00007f80991e5700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffdd538cc98 CR3: 000000017f009000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: e5 ff in $0xff,%eax 2: 4c 89 e7 mov %r12,%rdi 5: 89 c6 mov %eax,%esi 7: e8 0e a2 00 00 callq 0xa21a c: 49 89 c4 mov %rax,%r12 f: 48 89 ef mov %rbp,%rdi 12: e8 f3 a5 00 00 callq 0xa60a 17: 48 85 c0 test %rax,%rax 1a: 0f 84 1a 01 00 00 je 0x13a 20: 49 89 c7 mov %rax,%r15 23: 4c 89 e0 mov %r12,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 4c 89 e7 mov %r12,%rdi 34: e8 e1 f4 86 00 callq 0x86f51a 39: 4d 3b 3c 24 cmp (%r12),%r15 3d: 0f .byte 0xf 3e: 84 07 test %al,(%rdi)