BUG: sleeping function called from invalid context at net/core/sock.c:3613 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 5959, name: kworker/u33:2 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 6 locks held by kworker/u33:2/5959: #0: ffff8880320bc148 ((wq_completion)hci2 #2){+.+.}-{0:0}, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204 #1: ffffc9000625fd80 ((work_completion)(&hdev->rx_work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205 #2: ffff8880236b0078 (&hdev->lock){+.+.}-{3:3}, at: hci_sync_conn_complete_evt+0x118/0xa10 net/bluetooth/hci_event.c:4926 #3: ffffffff9014bba8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_connect_cfm include/net/bluetooth/hci_core.h:1957 [inline] #3: ffffffff9014bba8 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_sync_conn_complete_evt+0x336/0xa10 net/bluetooth/hci_event.c:5009 #4: ffff888028365220 (&conn->lock#2){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline] #4: ffff888028365220 (&conn->lock#2){+.+.}-{2:2}, at: sco_conn_ready net/bluetooth/sco.c:1283 [inline] #4: ffff888028365220 (&conn->lock#2){+.+.}-{2:2}, at: sco_connect_cfm+0x2d1/0xc10 net/bluetooth/sco.c:1368 #5: ffff88801bb9c258 (sk_lock-AF_BLUETOOTH-BTPROTO_SCO){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1611 [inline] #5: ffff88801bb9c258 (sk_lock-AF_BLUETOOTH-BTPROTO_SCO){+.+.}-{0:0}, at: sco_conn_ready net/bluetooth/sco.c:1296 [inline] #5: ffff88801bb9c258 (sk_lock-AF_BLUETOOTH-BTPROTO_SCO){+.+.}-{0:0}, at: sco_connect_cfm+0x3ee/0xc10 net/bluetooth/sco.c:1368 Preemption disabled at: [<0000000000000000>] 0x0 CPU: 1 UID: 0 PID: 5959 Comm: kworker/u33:2 Not tainted 6.12.0-rc7-syzkaller #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Workqueue: hci2 hci_rx_work Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120 __might_resched+0x3c0/0x5e0 kernel/sched/core.c:8653 lock_sock_nested+0x4b/0xf0 net/core/sock.c:3613 lock_sock include/net/sock.h:1611 [inline] sco_conn_ready net/bluetooth/sco.c:1296 [inline] sco_connect_cfm+0x3ee/0xc10 net/bluetooth/sco.c:1368 hci_connect_cfm include/net/bluetooth/hci_core.h:1960 [inline] hci_sync_conn_complete_evt+0x3a1/0xa10 net/bluetooth/hci_event.c:5009 hci_event_func net/bluetooth/hci_event.c:7443 [inline] hci_event_packet+0x9eb/0x1180 net/bluetooth/hci_event.c:7495 hci_rx_work+0x2c6/0x16c0 net/bluetooth/hci_core.c:4031 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391 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 ================================================================== BUG: KASAN: slab-use-after-free in __lock_acquire+0x2dfe/0x3ce0 kernel/locking/lockdep.c:5065 Read of size 8 at addr ffff88801bb9c1d8 by task kworker/u33:2/5959 CPU: 1 UID: 0 PID: 5959 Comm: kworker/u33:2 Tainted: G W 6.12.0-rc7-syzkaller #0 Tainted: [W]=WARN Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Workqueue: hci2 hci_rx_work 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:377 [inline] print_report+0xc3/0x620 mm/kasan/report.c:488 kasan_report+0xd9/0x110 mm/kasan/report.c:601 __lock_acquire+0x2dfe/0x3ce0 kernel/locking/lockdep.c:5065 lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5825 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x33/0x40 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:356 [inline] lock_sock_nested+0x5f/0xf0 net/core/sock.c:3614 lock_sock include/net/sock.h:1611 [inline] sco_conn_ready net/bluetooth/sco.c:1296 [inline] sco_connect_cfm+0x3ee/0xc10 net/bluetooth/sco.c:1368 hci_connect_cfm include/net/bluetooth/hci_core.h:1960 [inline] hci_sync_conn_complete_evt+0x3a1/0xa10 net/bluetooth/hci_event.c:5009 hci_event_func net/bluetooth/hci_event.c:7443 [inline] hci_event_packet+0x9eb/0x1180 net/bluetooth/hci_event.c:7495 hci_rx_work+0x2c6/0x16c0 net/bluetooth/hci_core.c:4031 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391 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 6923: 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:257 [inline] __do_kmalloc_node mm/slub.c:4264 [inline] __kmalloc_noprof+0x1e8/0x400 mm/slub.c:4276 kmalloc_noprof include/linux/slab.h:882 [inline] sk_prot_alloc+0x1a8/0x2a0 net/core/sock.c:2164 sk_alloc+0x36/0xb90 net/core/sock.c:2217 bt_sock_alloc+0x3b/0x3a0 net/bluetooth/af_bluetooth.c:148 sco_sock_alloc net/bluetooth/sco.c:506 [inline] sco_sock_create+0xe3/0x3c0 net/bluetooth/sco.c:537 bt_sock_create+0x182/0x350 net/bluetooth/af_bluetooth.c:132 __sock_create+0x32e/0x840 net/socket.c:1576 sock_create net/socket.c:1632 [inline] __sys_socket_create net/socket.c:1669 [inline] __sys_socket+0x14f/0x260 net/socket.c:1716 __do_sys_socket net/socket.c:1730 [inline] __se_sys_socket net/socket.c:1728 [inline] __x64_sys_socket+0x72/0xb0 net/socket.c:1728 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 6923: 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:579 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:230 [inline] slab_free_hook mm/slub.c:2342 [inline] slab_free mm/slub.c:4579 [inline] kfree+0x14f/0x4b0 mm/slub.c:4727 sk_prot_free net/core/sock.c:2200 [inline] __sk_destruct+0x5eb/0x720 net/core/sock.c:2292 sk_destruct+0xc2/0xf0 net/core/sock.c:2307 __sk_free+0xf4/0x3e0 net/core/sock.c:2318 sk_free+0x6a/0x90 net/core/sock.c:2329 sock_put include/net/sock.h:1888 [inline] sco_sock_kill net/bluetooth/sco.c:437 [inline] sco_sock_kill+0x11a/0x1c0 net/bluetooth/sco.c:427 sco_sock_release+0x154/0x2d0 net/bluetooth/sco.c:1265 __sock_release+0xb0/0x270 net/socket.c:658 sock_close+0x1c/0x30 net/socket.c:1426 __fput+0x3f6/0xb60 fs/file_table.c:431 task_work_run+0x14e/0x250 kernel/task_work.c:239 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x27b/0x2a0 kernel/entry/common.c:218 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f The buggy address belongs to the object at ffff88801bb9c000 which belongs to the cache kmalloc-2k of size 2048 The buggy address is located 472 bytes inside of freed 2048-byte region [ffff88801bb9c000, ffff88801bb9c800) The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1bb98 head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 anon flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff) page_type: f5(slab) raw: 00fff00000000040 ffff88801b042f00 0000000000000000 dead000000000001 raw: 0000000000000000 0000000080080008 00000001f5000000 0000000000000000 head: 00fff00000000040 ffff88801b042f00 0000000000000000 dead000000000001 head: 0000000000000000 0000000080080008 00000001f5000000 0000000000000000 head: 00fff00000000003 ffffea00006ee601 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 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 2155985155, free_ts 0 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1541 prep_new_page mm/page_alloc.c:1549 [inline] get_page_from_freelist+0xfce/0x2f80 mm/page_alloc.c:3459 __alloc_pages_noprof+0x223/0x25a0 mm/page_alloc.c:4735 alloc_pages_mpol_noprof+0x2c9/0x610 mm/mempolicy.c:2265 alloc_slab_page mm/slub.c:2412 [inline] allocate_slab mm/slub.c:2578 [inline] new_slab+0x2c9/0x410 mm/slub.c:2631 ___slab_alloc+0xdac/0x1880 mm/slub.c:3818 __slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3908 __slab_alloc_node mm/slub.c:3961 [inline] slab_alloc_node mm/slub.c:4122 [inline] __do_kmalloc_node mm/slub.c:4263 [inline] __kmalloc_noprof+0x367/0x400 mm/slub.c:4276 kmalloc_noprof include/linux/slab.h:882 [inline] kzalloc_noprof include/linux/slab.h:1014 [inline] acpi_ds_build_internal_package_obj+0x8f9/0xce0 drivers/acpi/acpica/dspkginit.c:112 acpi_ds_eval_data_object_operands+0x324/0x540 drivers/acpi/acpica/dsopcode.c:638 acpi_ds_exec_end_op+0xde1/0x1460 drivers/acpi/acpica/dswexec.c:607 acpi_ps_parse_loop+0x429/0x1ce0 drivers/acpi/acpica/psloop.c:525 acpi_ps_parse_aml+0x3c1/0xcb0 drivers/acpi/acpica/psparse.c:475 acpi_ps_execute_table+0x37b/0x4d0 drivers/acpi/acpica/psxface.c:295 acpi_ns_execute_table+0x3e9/0x560 drivers/acpi/acpica/nsparse.c:116 acpi_ns_load_table+0x5b/0x130 drivers/acpi/acpica/nsload.c:71 page_owner free stack trace missing Memory state around the buggy address: ffff88801bb9c080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88801bb9c100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff88801bb9c180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88801bb9c200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88801bb9c280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================