general protection fault, probably for non-canonical address 0xdffffc0000000b00: 0000 [#1] PREEMPT SMP KASAN KASAN: probably user-memory-access in range [0x0000000000005800-0x0000000000005807] CPU: 1 PID: 30846 Comm: syz-executor.1 Not tainted 5.10.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__list_del_entry_valid+0x81/0xf0 lib/list_debug.c:51 Code: 0f 84 d3 c0 fb 04 48 b8 22 01 00 00 00 00 ad de 49 39 c4 0f 84 d4 c0 fb 04 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 75 51 49 8b 14 24 48 39 ea 0f 85 8b c0 fb 04 49 8d 7d RSP: 0018:ffffc9001653fb50 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000054 RCX: ffffc9000aab6000 RDX: 0000000000000b00 RSI: ffffffff87df1892 RDI: ffff888014569f08 RBP: ffff888014569f00 R08: 0000000000000001 R09: ffff88801a734a77 R10: ffffed10034e694e R11: 0000000000000001 R12: 0000000000005800 R13: 3000004010000000 R14: fffffbfff19608c8 R15: 0000000000000067 FS: 00007f7eae8b2700(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055c3b4ac8030 CR3: 0000000025fa7000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_del_entry include/linux/list.h:132 [inline] list_del_rcu include/linux/rculist.h:166 [inline] hci_chan_del+0x4e/0x200 net/bluetooth/hci_conn.c:1733 l2cap_conn_del+0x478/0x7b0 net/bluetooth/l2cap_core.c:1900 l2cap_disconn_cfm net/bluetooth/l2cap_core.c:8161 [inline] l2cap_disconn_cfm+0x98/0xd0 net/bluetooth/l2cap_core.c:8154 hci_disconn_cfm include/net/bluetooth/hci_core.h:1441 [inline] hci_conn_hash_flush+0x127/0x260 net/bluetooth/hci_conn.c:1557 hci_dev_do_close+0x569/0x1110 net/bluetooth/hci_core.c:1770 hci_rfkill_set_block+0x19c/0x1d0 net/bluetooth/hci_core.c:2209 rfkill_set_block+0x1f9/0x540 net/rfkill/core.c:341 rfkill_fop_write+0x267/0x500 net/rfkill/core.c:1240 vfs_write+0x28e/0xa30 fs/read_write.c:603 ksys_write+0x1ee/0x250 fs/read_write.c:658 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45de79 Code: 0d b4 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 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f7eae8b1c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045de79 RDX: 0000000000000008 RSI: 0000000020000000 RDI: 0000000000000003 RBP: 000000000118bf60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c R13: 000000000169fb7f R14: 00007f7eae8b29c0 R15: 000000000118bf2c Modules linked in: ---[ end trace 8aa7b596113f27d8 ]--- RIP: 0010:__list_del_entry_valid+0x81/0xf0 lib/list_debug.c:51 Code: 0f 84 d3 c0 fb 04 48 b8 22 01 00 00 00 00 ad de 49 39 c4 0f 84 d4 c0 fb 04 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 75 51 49 8b 14 24 48 39 ea 0f 85 8b c0 fb 04 49 8d 7d RSP: 0018:ffffc9001653fb50 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000054 RCX: ffffc9000aab6000 RDX: 0000000000000b00 RSI: ffffffff87df1892 RDI: ffff888014569f08 RBP: ffff888014569f00 R08: 0000000000000001 R09: ffff88801a734a77 R10: ffffed10034e694e R11: 0000000000000001 R12: 0000000000005800 R13: 3000004010000000 R14: fffffbfff19608c8 R15: 0000000000000067 FS: 00007f7eae8b2700(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000001590004 CR3: 0000000025fa7000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400