Bluetooth: hci1: Opcode 0x0c1a failed: -4 Bluetooth: hci1: Error when powering off device on rfkill (-4) ------------[ cut here ]------------ WARNING: CPU: 1 PID: 17067 at kernel/kcov.c:871 kcov_remote_start+0x542/0x7d0 kernel/kcov.c:871 Modules linked in: CPU: 1 UID: 0 PID: 17067 Comm: syz.0.1757 Not tainted 6.11.0-rc3-syzkaller-00279-ge5fa841af679 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:kcov_remote_start+0x542/0x7d0 kernel/kcov.c:871 Code: 4c 89 ff be 03 00 00 00 e8 0b 4e 1d 03 e9 04 fb ff ff e8 81 01 23 0a 41 f7 c6 00 02 00 00 0f 84 f2 fa ff ff e9 7f fc ff ff 90 <0f> 0b 90 e8 a6 1e 23 0a 89 c0 48 c7 c7 c8 d4 02 00 48 03 3c c5 40 RSP: 0018:ffffc90004def2b0 EFLAGS: 00010002 RAX: 0000000080000200 RBX: ffff8880224c5a00 RCX: 0000000000000002 RDX: dffffc0000000000 RSI: ffffffff8c0ae6e0 RDI: ffffffff8c606900 RBP: 0000000000000000 R08: ffffffff9372f8af R09: 1ffffffff26e5f15 R10: dffffc0000000000 R11: fffffbfff26e5f16 R12: ffffffff81939497 R13: ffff88805b1b23c0 R14: 0000000000000246 R15: ffff8880b932d4c8 FS: 00007f8f662b86c0(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f704ff8 CR3: 000000005ff64000 CR4: 00000000003506f0 Call Trace: kcov_remote_start_common include/linux/kcov.h:50 [inline] ieee80211_rx_list+0x799/0x3780 net/mac80211/rx.c:5444 ieee80211_rx_napi+0x18a/0x3c0 net/mac80211/rx.c:5485 ieee80211_rx include/net/mac80211.h:5124 [inline] ieee80211_handle_queued_frames+0xe7/0x1e0 net/mac80211/main.c:439 ieee80211_stop_device+0x3f/0xf0 net/mac80211/util.c:1571 ieee80211_do_stop+0x1917/0x1f40 net/mac80211/iface.c:706 ieee80211_stop+0x436/0x4a0 net/mac80211/iface.c:765 __dev_close_many+0x219/0x300 net/core/dev.c:1558 dev_close_many+0x24e/0x4c0 net/core/dev.c:1583 dev_close+0x1c0/0x2c0 net/core/dev.c:1609 cfg80211_shutdown_all_interfaces+0xbb/0x1d0 net/wireless/core.c:280 cfg80211_rfkill_set_block+0x2d/0x50 net/wireless/core.c:312 rfkill_set_block+0x1f1/0x440 net/rfkill/core.c:346 rfkill_fop_write+0x5bb/0x790 net/rfkill/core.c:1305 vfs_write+0x2a2/0xc90 fs/read_write.c:588 ksys_write+0x1a0/0x2c0 fs/read_write.c:643 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8f65579e79 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f8f662b8038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f8f65716130 RCX: 00007f8f65579e79 RDX: 0000000000000008 RSI: 0000000020000080 RDI: 0000000000000008 RBP: 00007f8f655e7916 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f8f65716130 R15: 00007f8f6583fa38