Bluetooth: hci0: Opcode 0x0c1a failed: -110 Bluetooth: hci0: Error when powering off device on rfkill (-110) ================================================================== BUG: KASAN: slab-use-after-free in __list_del_entry_valid_or_report+0x1a6/0x1c0 lib/list_debug.c:62 Read of size 8 at addr ffff88804d71d550 by task kworker/1:8/5905 CPU: 1 UID: 0 PID: 5905 Comm: kworker/1:8 Not tainted 6.13.0-rc7-syzkaller-00043-g619f0b6fad52 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Workqueue: events rfkill_op_handler Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0xc3/0x620 mm/kasan/report.c:489 kasan_report+0xd9/0x110 mm/kasan/report.c:602 __list_del_entry_valid_or_report+0x1a6/0x1c0 lib/list_debug.c:62 __list_del_entry_valid include/linux/list.h:124 [inline] __list_del_entry include/linux/list.h:215 [inline] list_del_init include/linux/list.h:287 [inline] bt_accept_unlink+0x34/0x2e0 net/bluetooth/af_bluetooth.c:256 l2cap_sock_teardown_cb+0x1a3/0x3c0 net/bluetooth/l2cap_sock.c:1601 l2cap_chan_del+0xba/0x8f0 net/bluetooth/l2cap_core.c:658 l2cap_conn_del+0x37c/0x730 net/bluetooth/l2cap_core.c:1785 hci_disconn_cfm include/net/bluetooth/hci_core.h:2075 [inline] hci_conn_hash_flush+0x44a/0x790 net/bluetooth/hci_conn.c:2698 hci_dev_close_sync+0x603/0x11a0 net/bluetooth/hci_sync.c:5213 hci_dev_do_close+0x2e/0x90 net/bluetooth/hci_core.c:482 hci_rfkill_set_block+0x225/0x360 net/bluetooth/hci_core.c:910 rfkill_set_block+0x203/0x560 net/rfkill/core.c:346 rfkill_epo+0x8e/0x1d0 net/rfkill/core.c:466 __rfkill_handle_global_op net/rfkill/input.c:60 [inline] rfkill_op_handler+0x262/0x280 net/rfkill/input.c:108 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3236 process_scheduled_works kernel/workqueue.c:3317 [inline] worker_thread+0x6c8/0xf00 kernel/workqueue.c:3398 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Allocated by task 11556: kasan_save_stack+0x33/0x60 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:377 [inline] __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394 kasan_kmalloc include/linux/kasan.h:260 [inline] __do_kmalloc_node mm/slub.c:4298 [inline] __kmalloc_noprof+0x21c/0x510 mm/slub.c:4310 kmalloc_noprof include/linux/slab.h:905 [inline] sk_prot_alloc+0x1a8/0x2a0 net/core/sock.c:2168 sk_alloc+0x36/0xb90 net/core/sock.c:2221 __netlink_create+0x5e/0x2c0 net/netlink/af_netlink.c:629 netlink_create+0x3a4/0x630 net/netlink/af_netlink.c:687 __sock_create+0x335/0x8d0 net/socket.c:1558 sock_create net/socket.c:1616 [inline] __sys_socket_create net/socket.c:1653 [inline] __sys_socket+0x14f/0x260 net/socket.c:1700 __do_sys_socket net/socket.c:1714 [inline] __se_sys_socket net/socket.c:1712 [inline] __x64_sys_socket+0x72/0xb0 net/socket.c:1712 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Freed by task 5950: kasan_save_stack+0x33/0x60 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:582 poison_slab_object mm/kasan/common.c:247 [inline] __kasan_slab_free+0x51/0x70 mm/kasan/common.c:264 kasan_slab_free include/linux/kasan.h:233 [inline] slab_free_hook mm/slub.c:2353 [inline] slab_free mm/slub.c:4613 [inline] kfree+0x14f/0x4b0 mm/slub.c:4761 sk_prot_free net/core/sock.c:2204 [inline] __sk_destruct+0x5eb/0x720 net/core/sock.c:2296 sk_destruct+0xc2/0xf0 net/core/sock.c:2311 __sk_free+0xf4/0x3e0 net/core/sock.c:2322 sk_free+0x6a/0x90 net/core/sock.c:2333 deferred_put_nlk_sk+0xc9/0x110 net/netlink/af_netlink.c:717 rcu_do_batch kernel/rcu/tree.c:2567 [inline] rcu_core+0x79d/0x14d0 kernel/rcu/tree.c:2823 handle_softirqs+0x213/0x8f0 kernel/softirq.c:561 __do_softirq kernel/softirq.c:595 [inline] invoke_softirq kernel/softirq.c:435 [inline] __irq_exit_rcu+0x109/0x170 kernel/softirq.c:662 irq_exit_rcu+0x9/0x30 kernel/softirq.c:678 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 Last potentially related work creation: kasan_save_stack+0x33/0x60 mm/kasan/common.c:47 __kasan_record_aux_stack+0xba/0xd0 mm/kasan/generic.c:544 __call_rcu_common.constprop.0+0x99/0x7a0 kernel/rcu/tree.c:3086 netlink_release+0x1318/0x2130 net/netlink/af_netlink.c:808 __sock_release+0xb0/0x270 net/socket.c:640 sock_close+0x1c/0x30 net/socket.c:1408 __fput+0x3f8/0xb60 fs/file_table.c:450 __fput_sync+0xa1/0xc0 fs/file_table.c:535 __do_sys_close fs/open.c:1554 [inline] __se_sys_close fs/open.c:1539 [inline] __x64_sys_close+0x86/0x100 fs/open.c:1539 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f The buggy address belongs to the object at ffff88804d71d000 which belongs to the cache kmalloc-2k of size 2048 The buggy address is located 1360 bytes inside of freed 2048-byte region [ffff88804d71d000, ffff88804d71d800) The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x4d718 head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff) page_type: f5(slab) raw: 00fff00000000040 ffff88801b042000 ffffea00013db200 dead000000000002 raw: 0000000000000000 0000000080080008 00000001f5000000 0000000000000000 head: 00fff00000000040 ffff88801b042000 ffffea00013db200 dead000000000002 head: 0000000000000000 0000000080080008 00000001f5000000 0000000000000000 head: 00fff00000000003 ffffea000135c601 ffffffffffffffff 0000000000000000 head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 6943, tgid 6943 (syz-executor), ts 163680938378, free_ts 163679294024 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1558 prep_new_page mm/page_alloc.c:1566 [inline] get_page_from_freelist+0xfce/0x2f80 mm/page_alloc.c:3476 __alloc_pages_noprof+0x223/0x25b0 mm/page_alloc.c:4753 alloc_pages_mpol_noprof+0x2c8/0x620 mm/mempolicy.c:2269 alloc_slab_page mm/slub.c:2423 [inline] allocate_slab mm/slub.c:2589 [inline] new_slab+0x2c9/0x410 mm/slub.c:2642 ___slab_alloc+0xd7d/0x17a0 mm/slub.c:3830 __slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3920 __slab_alloc_node mm/slub.c:3995 [inline] slab_alloc_node mm/slub.c:4156 [inline] __do_kmalloc_node mm/slub.c:4297 [inline] __kmalloc_node_track_caller_noprof+0x2f1/0x510 mm/slub.c:4317 kmalloc_reserve+0xef/0x2c0 net/core/skbuff.c:609 __alloc_skb+0x164/0x380 net/core/skbuff.c:678 alloc_skb include/linux/skbuff.h:1323 [inline] nlmsg_new include/net/netlink.h:1018 [inline] audit_buffer_alloc kernel/audit.c:1795 [inline] audit_log_start+0x2e1/0x7e0 kernel/audit.c:1913 common_lsm_audit+0xe9/0x2250 security/lsm_audit.c:449 slow_avc_audit+0x17d/0x210 security/selinux/avc.c:779 avc_audit security/selinux/include/avc.h:127 [inline] avc_has_perm+0x18d/0x1c0 security/selinux/avc.c:1198 superblock_has_perm security/selinux/hooks.c:1953 [inline] selinux_sb_kern_mount+0x1bd/0x270 security/selinux/hooks.c:2742 security_sb_kern_mount+0x1b9/0x1e0 security/security.c:1513 page last free pid 6943 tgid 6943 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1127 [inline] free_unref_page+0x661/0x1080 mm/page_alloc.c:2659 __put_partials+0x14c/0x170 mm/slub.c:3157 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4119 [inline] slab_alloc_node mm/slub.c:4168 [inline] __do_kmalloc_node mm/slub.c:4297 [inline] __kmalloc_noprof+0x1cd/0x510 mm/slub.c:4310 kmalloc_noprof include/linux/slab.h:905 [inline] kzalloc_noprof include/linux/slab.h:1037 [inline] tomoyo_encode2+0x100/0x3e0 security/tomoyo/realpath.c:45 tomoyo_encode+0x29/0x50 security/tomoyo/realpath.c:80 tomoyo_mount_acl+0x314/0x880 security/tomoyo/mount.c:150 tomoyo_mount_permission+0x16e/0x420 security/tomoyo/mount.c:237 security_sb_mount+0x9b/0x260 security/security.c:1564 path_mount+0x129/0x1f10 fs/namespace.c:3780 do_mount fs/namespace.c:3851 [inline] __do_sys_mount fs/namespace.c:4061 [inline] __se_sys_mount fs/namespace.c:4038 [inline] __x64_sys_mount+0x294/0x320 fs/namespace.c:4038 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Memory state around the buggy address: ffff88804d71d400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88804d71d480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff88804d71d500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88804d71d580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88804d71d600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================