BUG: sleeping function called from invalid context at kernel/locking/mutex.c:585 in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 52, name: kworker/u9:0 preempt_count: 0, expected: 0 RCU nest depth: 1, expected: 0 4 locks held by kworker/u9:0/52: #0: ffff888018b58148 ((wq_completion)hci0#2){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3193 [inline] #0: ffff888018b58148 ((wq_completion)hci0#2){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3299 #1: ffffc90000bc7d00 ((work_completion)(&hdev->rx_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3194 [inline] #1: ffffc90000bc7d00 ((work_completion)(&hdev->rx_work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3299 #2: ffff88807b768078 (&hdev->lock){+.+.}-{3:3}, at: hci_le_create_big_complete_evt+0xcf/0xae0 net/bluetooth/hci_event.c:6970 #3: ffffffff8e334ea0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline] #3: ffffffff8e334ea0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline] #3: ffffffff8e334ea0 (rcu_read_lock){....}-{1:2}, at: hci_le_create_big_complete_evt+0xdb/0xae0 net/bluetooth/hci_event.c:6971 CPU: 0 PID: 52 Comm: kworker/u9:0 Not tainted 6.9.0-rc2-next-20240405-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Workqueue: hci0 hci_rx_work Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 __might_resched+0x5d4/0x780 kernel/sched/core.c:10197 __mutex_lock_common kernel/locking/mutex.c:585 [inline] __mutex_lock+0xc1/0xd70 kernel/locking/mutex.c:752 hci_connect_cfm include/net/bluetooth/hci_core.h:2015 [inline] hci_le_create_big_complete_evt+0x3d9/0xae0 net/bluetooth/hci_event.c:6995 hci_event_func net/bluetooth/hci_event.c:7555 [inline] hci_event_packet+0xa53/0x1540 net/bluetooth/hci_event.c:7610 hci_rx_work+0x3e8/0xca0 net/bluetooth/hci_core.c:4185 process_one_work kernel/workqueue.c:3218 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3299 worker_thread+0x86d/0xd70 kernel/workqueue.c:3380 kthread+0x2f0/0x390 kernel/kthread.c:388 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 ============================= [ BUG: Invalid wait context ] 6.9.0-rc2-next-20240405-syzkaller #0 Tainted: G W ----------------------------- kworker/u9:0/52 is trying to lock: ffffffff8f73f868 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_connect_cfm include/net/bluetooth/hci_core.h:2015 [inline] ffffffff8f73f868 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_le_create_big_complete_evt+0x3d9/0xae0 net/bluetooth/hci_event.c:6995 other info that might help us debug this: context-{4:4} 4 locks held by kworker/u9:0/52: #0: ffff888018b58148 ((wq_completion)hci0#2){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3193 [inline] #0: ffff888018b58148 ((wq_completion)hci0#2){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3299 #1: ffffc90000bc7d00 ((work_completion)(&hdev->rx_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3194 [inline] #1: ffffc90000bc7d00 ((work_completion)(&hdev->rx_work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3299 #2: ffff88807b768078 (&hdev->lock){+.+.}-{3:3}, at: hci_le_create_big_complete_evt+0xcf/0xae0 net/bluetooth/hci_event.c:6970 #3: ffffffff8e334ea0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline] #3: ffffffff8e334ea0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline] #3: ffffffff8e334ea0 (rcu_read_lock){....}-{1:2}, at: hci_le_create_big_complete_evt+0xdb/0xae0 net/bluetooth/hci_event.c:6971 stack backtrace: CPU: 0 PID: 52 Comm: kworker/u9:0 Tainted: G W 6.9.0-rc2-next-20240405-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Workqueue: hci0 hci_rx_work Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 print_lock_invalid_wait_context kernel/locking/lockdep.c:4751 [inline] check_wait_context kernel/locking/lockdep.c:4821 [inline] __lock_acquire+0x1507/0x1fd0 kernel/locking/lockdep.c:5087 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754 __mutex_lock_common kernel/locking/mutex.c:608 [inline] __mutex_lock+0x136/0xd70 kernel/locking/mutex.c:752 hci_connect_cfm include/net/bluetooth/hci_core.h:2015 [inline] hci_le_create_big_complete_evt+0x3d9/0xae0 net/bluetooth/hci_event.c:6995 hci_event_func net/bluetooth/hci_event.c:7555 [inline] hci_event_packet+0xa53/0x1540 net/bluetooth/hci_event.c:7610 hci_rx_work+0x3e8/0xca0 net/bluetooth/hci_core.c:4185 process_one_work kernel/workqueue.c:3218 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3299 worker_thread+0x86d/0xd70 kernel/workqueue.c:3380 kthread+0x2f0/0x390 kernel/kthread.c:388 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 ================================================================== BUG: KASAN: slab-use-after-free in hci_le_create_big_complete_evt+0x383/0xae0 Read of size 8 at addr ffff888022e3c000 by task kworker/u9:0/52 CPU: 0 PID: 52 Comm: kworker/u9:0 Tainted: G W 6.9.0-rc2-next-20240405-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Workqueue: hci0 hci_rx_work Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 print_address_description mm/kasan/report.c:377 [inline] print_report+0x169/0x550 mm/kasan/report.c:488 kasan_report+0x143/0x180 mm/kasan/report.c:601 hci_le_create_big_complete_evt+0x383/0xae0 hci_event_func net/bluetooth/hci_event.c:7555 [inline] hci_event_packet+0xa53/0x1540 net/bluetooth/hci_event.c:7610 hci_rx_work+0x3e8/0xca0 net/bluetooth/hci_core.c:4185 process_one_work kernel/workqueue.c:3218 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3299 worker_thread+0x86d/0xd70 kernel/workqueue.c:3380 kthread+0x2f0/0x390 kernel/kthread.c:388 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 Allocated by task 52: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:370 [inline] __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:387 kasan_kmalloc include/linux/kasan.h:211 [inline] kmalloc_trace_noprof+0x19c/0x2b0 mm/slub.c:4109 kmalloc_noprof include/linux/slab.h:660 [inline] kzalloc_noprof include/linux/slab.h:775 [inline] hci_conn_add+0xc7/0x1440 net/bluetooth/hci_conn.c:915 hci_le_big_sync_established_evt+0x1cf/0xb90 net/bluetooth/hci_event.c:7036 hci_event_func net/bluetooth/hci_event.c:7555 [inline] hci_event_packet+0xa53/0x1540 net/bluetooth/hci_event.c:7610 hci_rx_work+0x3e8/0xca0 net/bluetooth/hci_core.c:4185 process_one_work kernel/workqueue.c:3218 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3299 worker_thread+0x86d/0xd70 kernel/workqueue.c:3380 kthread+0x2f0/0x390 kernel/kthread.c:388 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 Freed by task 52: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579 poison_slab_object+0xe0/0x150 mm/kasan/common.c:240 __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256 kasan_slab_free include/linux/kasan.h:184 [inline] slab_free_hook mm/slub.c:2190 [inline] slab_free mm/slub.c:4393 [inline] kfree+0x149/0x350 mm/slub.c:4514 device_release+0x99/0x1c0 kobject_cleanup lib/kobject.c:689 [inline] kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x22f/0x480 lib/kobject.c:737 hci_conn_cleanup net/bluetooth/hci_conn.c:177 [inline] hci_conn_del+0x911/0xc90 net/bluetooth/hci_conn.c:1129 hci_le_create_big_complete_evt+0x619/0xae0 net/bluetooth/hci_event.c:6997 hci_event_func net/bluetooth/hci_event.c:7555 [inline] hci_event_packet+0xa53/0x1540 net/bluetooth/hci_event.c:7610 hci_rx_work+0x3e8/0xca0 net/bluetooth/hci_core.c:4185 process_one_work kernel/workqueue.c:3218 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3299 worker_thread+0x86d/0xd70 kernel/workqueue.c:3380 kthread+0x2f0/0x390 kernel/kthread.c:388 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 The buggy address belongs to the object at ffff888022e3c000 which belongs to the cache kmalloc-8k of size 8192 The buggy address is located 0 bytes inside of freed 8192-byte region [ffff888022e3c000, ffff888022e3e000) The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x22e38 head: order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0 flags: 0xfff80000000040(head|node=0|zone=1|lastcpupid=0xfff) page_type: 0xffffefff(slab) raw: 00fff80000000040 ffff888015042280 dead000000000122 0000000000000000 raw: 0000000000000000 0000000080020002 00000001ffffefff 0000000000000000 head: 00fff80000000040 ffff888015042280 dead000000000122 0000000000000000 head: 0000000000000000 0000000080020002 00000001ffffefff 0000000000000000 head: 00fff80000000003 ffffea00008b8e01 ffffea00008b8e48 00000000ffffffff head: 0000000800000000 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 0xd2040(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5079, tgid 126211378 (strace-static-x), ts 5079, free_ts 55959308873 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1490 prep_new_page mm/page_alloc.c:1498 [inline] get_page_from_freelist+0x2e7e/0x2f40 mm/page_alloc.c:3454 __alloc_pages_noprof+0x256/0x6c0 mm/page_alloc.c:4712 __alloc_pages_node_noprof include/linux/gfp.h:244 [inline] alloc_pages_node_noprof include/linux/gfp.h:271 [inline] alloc_slab_page+0x5f/0x120 mm/slub.c:2259 allocate_slab+0x5a/0x2e0 mm/slub.c:2422 new_slab mm/slub.c:2475 [inline] ___slab_alloc+0xcd1/0x14b0 mm/slub.c:3624 __slab_alloc+0x58/0xa0 mm/slub.c:3714 __slab_alloc_node mm/slub.c:3767 [inline] slab_alloc_node mm/slub.c:3945 [inline] kmalloc_trace_noprof+0x1d5/0x2b0 mm/slub.c:4104 kmalloc_noprof include/linux/slab.h:660 [inline] kzalloc_noprof include/linux/slab.h:775 [inline] tomoyo_print_bprm security/tomoyo/audit.c:26 [inline] tomoyo_init_log+0x11ce/0x2050 security/tomoyo/audit.c:264 tomoyo_supervisor+0x38a/0x11f0 security/tomoyo/common.c:2089 tomoyo_audit_env_log security/tomoyo/environ.c:36 [inline] tomoyo_env_perm+0x178/0x210 security/tomoyo/environ.c:63 tomoyo_environ security/tomoyo/domain.c:672 [inline] tomoyo_find_next_domain+0x1384/0x1cf0 security/tomoyo/domain.c:878 tomoyo_bprm_check_security+0x115/0x180 security/tomoyo/tomoyo.c:102 security_bprm_check+0x65/0x90 security/security.c:1191 search_binary_handler fs/exec.c:1777 [inline] exec_binprm fs/exec.c:1831 [inline] bprm_execve+0xa56/0x17c0 fs/exec.c:1883 do_execveat_common+0x553/0x700 fs/exec.c:1990 page last free pid 5079 tgid 5079 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1110 [inline] free_unref_page+0xd3c/0xec0 mm/page_alloc.c:2617 __slab_free+0x31b/0x3d0 mm/slub.c:4304 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9e/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:322 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook mm/slub.c:3897 [inline] slab_alloc_node mm/slub.c:3957 [inline] kmalloc_trace_noprof+0x132/0x2b0 mm/slub.c:4104 kmalloc_noprof include/linux/slab.h:660 [inline] kzalloc_noprof include/linux/slab.h:775 [inline] tomoyo_print_bprm security/tomoyo/audit.c:26 [inline] tomoyo_init_log+0x11ce/0x2050 security/tomoyo/audit.c:264 tomoyo_supervisor+0x38a/0x11f0 security/tomoyo/common.c:2089 tomoyo_audit_env_log security/tomoyo/environ.c:36 [inline] tomoyo_env_perm+0x178/0x210 security/tomoyo/environ.c:63 tomoyo_environ security/tomoyo/domain.c:672 [inline] tomoyo_find_next_domain+0x1384/0x1cf0 security/tomoyo/domain.c:878 tomoyo_bprm_check_security+0x115/0x180 security/tomoyo/tomoyo.c:102 security_bprm_check+0x65/0x90 security/security.c:1191 search_binary_handler fs/exec.c:1777 [inline] exec_binprm fs/exec.c:1831 [inline] bprm_execve+0xa56/0x17c0 fs/exec.c:1883 do_execveat_common+0x553/0x700 fs/exec.c:1990 do_execve fs/exec.c:2064 [inline] __do_sys_execve fs/exec.c:2140 [inline] __se_sys_execve fs/exec.c:2135 [inline] __x64_sys_execve+0x92/0xb0 fs/exec.c:2135 do_syscall_64+0xfb/0x240 Memory state around the buggy address: ffff888022e3bf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888022e3bf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff888022e3c000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888022e3c080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888022e3c100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================