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: 25445 Comm: syz-executor.4 Not tainted 6.1.0-rc5-next-20221116-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:__queue_work+0x1f6/0x13b0 kernel/workqueue.c:1459 Code: ff ff 48 89 c3 e8 aa b4 2e 00 4c 89 e7 e8 d2 59 ff ff 48 85 c0 49 89 c5 0f 84 57 01 00 00 e8 91 b4 2e 00 48 89 d8 48 c1 e8 03 <80> 3c 28 00 0f 85 4a 10 00 00 4c 39 2b 0f 84 51 01 00 00 e8 72 b4 RSP: 0018:ffffc9000b547310 EFLAGS: 00010046 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff888020f60000 RSI: ffffffff8151f04f RDI: 0000000000000001 RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880783ea0f8 R13: ffff888012479800 R14: ffff888022b9c800 R15: ffff888022b9c800 FS: 00007f0d785bd700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff78552b718 CR3: 000000007b37f000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: queue_work_on+0xf2/0x110 kernel/workqueue.c:1545 queue_work include/linux/workqueue.h:503 [inline] nci_send_cmd+0x247/0x340 net/nfc/nci/core.c:1377 nci_reset_req+0x76/0xa0 net/nfc/nci/core.c:167 __nci_request+0x87/0x280 net/nfc/nci/core.c:108 nci_open_device net/nfc/nci/core.c:503 [inline] nci_dev_up+0x2af/0x670 net/nfc/nci/core.c:632 nfc_dev_up+0x1aa/0x3b0 net/nfc/core.c:118 nfc_genl_dev_up+0xa6/0xf0 net/nfc/netlink.c:770 genl_family_rcv_msg_doit.isra.0+0x1e6/0x2d0 net/netlink/genetlink.c:968 genl_family_rcv_msg net/netlink/genetlink.c:1048 [inline] genl_rcv_msg+0x4ff/0x7e0 net/netlink/genetlink.c:1065 netlink_rcv_skb+0x165/0x440 net/netlink/af_netlink.c:2564 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1076 netlink_unicast_kernel net/netlink/af_netlink.c:1330 [inline] netlink_unicast+0x547/0x7f0 net/netlink/af_netlink.c:1356 netlink_sendmsg+0x91b/0xe10 net/netlink/af_netlink.c:1932 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg+0xd3/0x120 net/socket.c:734 ____sys_sendmsg+0x712/0x8c0 net/socket.c:2476 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2530 __sys_sendmsg+0xf7/0x1c0 net/socket.c:2559 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f0d7928b639 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:00007f0d785bd168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f0d793ac120 RCX: 00007f0d7928b639 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000005 RBP: 00007f0d792e6ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc48e4f8df R14: 00007f0d785bd300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__queue_work+0x1f6/0x13b0 kernel/workqueue.c:1459 Code: ff ff 48 89 c3 e8 aa b4 2e 00 4c 89 e7 e8 d2 59 ff ff 48 85 c0 49 89 c5 0f 84 57 01 00 00 e8 91 b4 2e 00 48 89 d8 48 c1 e8 03 <80> 3c 28 00 0f 85 4a 10 00 00 4c 39 2b 0f 84 51 01 00 00 e8 72 b4 RSP: 0018:ffffc9000b547310 EFLAGS: 00010046 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff888020f60000 RSI: ffffffff8151f04f RDI: 0000000000000001 RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880783ea0f8 R13: ffff888012479800 R14: ffff888022b9c800 R15: ffff888022b9c800 FS: 00007f0d785bd700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff78552b718 CR3: 000000007b37f000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: ff 48 89 decl -0x77(%rax) 3: c3 retq 4: e8 aa b4 2e 00 callq 0x2eb4b3 9: 4c 89 e7 mov %r12,%rdi c: e8 d2 59 ff ff callq 0xffff59e3 11: 48 85 c0 test %rax,%rax 14: 49 89 c5 mov %rax,%r13 17: 0f 84 57 01 00 00 je 0x174 1d: e8 91 b4 2e 00 callq 0x2eb4b3 22: 48 89 d8 mov %rbx,%rax 25: 48 c1 e8 03 shr $0x3,%rax * 29: 80 3c 28 00 cmpb $0x0,(%rax,%rbp,1) <-- trapping instruction 2d: 0f 85 4a 10 00 00 jne 0x107d 33: 4c 39 2b cmp %r13,(%rbx) 36: 0f 84 51 01 00 00 je 0x18d 3c: e8 .byte 0xe8 3d: 72 b4 jb 0xfffffff3