======================================================
WARNING: possible circular locking dependency detected
6.12.0-rc4-syzkaller-00161-gae90f6a6170d #0 Not tainted
------------------------------------------------------
syz.3.96/6244 is trying to acquire lock:
ffff88807abf0078 (&hdev->lock){+.+.}-{3:3}, at: mgmt_remove_adv_monitor_complete+0x9e/0x2e0 net/bluetooth/mgmt.c:5454

but task is already holding lock:
ffff88807abf0690 (&hdev->cmd_sync_work_lock){+.+.}-{3:3}, at: hci_cmd_sync_dequeue+0x50/0x1f0 net/bluetooth/hci_sync.c:883

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #1 (&hdev->cmd_sync_work_lock){+.+.}-{3:3}:
       __mutex_lock_common kernel/locking/mutex.c:608 [inline]
       __mutex_lock+0x175/0x9c0 kernel/locking/mutex.c:752
       hci_cmd_sync_lookup_entry net/bluetooth/hci_sync.c:834 [inline]
       hci_cmd_sync_queue_once net/bluetooth/hci_sync.c:778 [inline]
       hci_update_passive_scan+0x206/0x380 net/bluetooth/hci_sync.c:3203
       le_conn_complete_evt+0x1ca/0x1d80 net/bluetooth/hci_event.c:5773
       hci_le_conn_complete_evt+0x23c/0x370 net/bluetooth/hci_event.c:5784
       hci_le_meta_evt+0x2e5/0x5d0 net/bluetooth/hci_event.c:7132
       hci_event_func net/bluetooth/hci_event.c:7440 [inline]
       hci_event_packet+0x669/0x1180 net/bluetooth/hci_event.c:7495
       hci_rx_work+0x2c6/0x16c0 net/bluetooth/hci_core.c:4031
       process_one_work+0x9c8/0x1ba0 kernel/workqueue.c:3229
       process_scheduled_works kernel/workqueue.c:3310 [inline]
       worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
       kthread+0x2c4/0x3a0 kernel/kthread.c:389
       ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
       ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

-> #0 (&hdev->lock){+.+.}-{3:3}:
       check_prev_add kernel/locking/lockdep.c:3161 [inline]
       check_prevs_add kernel/locking/lockdep.c:3280 [inline]
       validate_chain kernel/locking/lockdep.c:3904 [inline]
       __lock_acquire+0x250b/0x3ce0 kernel/locking/lockdep.c:5202
       lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5825
       __mutex_lock_common kernel/locking/mutex.c:608 [inline]
       __mutex_lock+0x175/0x9c0 kernel/locking/mutex.c:752
       mgmt_remove_adv_monitor_complete+0x9e/0x2e0 net/bluetooth/mgmt.c:5454
       _hci_cmd_sync_cancel_entry.constprop.0+0x6f/0x1d0 net/bluetooth/hci_sync.c:641
       hci_cmd_sync_dequeue+0x178/0x1f0 net/bluetooth/hci_sync.c:886
       cmd_complete_rsp+0x46/0x1e0 net/bluetooth/mgmt.c:1461
       mgmt_pending_foreach+0xe2/0x140 net/bluetooth/mgmt_util.c:259
       mgmt_index_removed+0x145/0x300 net/bluetooth/mgmt.c:9407
       hci_sock_bind+0xc49/0x16f0 net/bluetooth/hci_sock.c:1307
       __sys_bind_socket net/socket.c:1843 [inline]
       __sys_bind_socket net/socket.c:1835 [inline]
       __sys_bind+0x1ee/0x220 net/socket.c:1867
       __do_sys_bind net/socket.c:1875 [inline]
       __se_sys_bind net/socket.c:1873 [inline]
       __x64_sys_bind+0x72/0xb0 net/socket.c:1873
       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

other info that might help us debug this:

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&hdev->cmd_sync_work_lock);
                               lock(&hdev->lock);
                               lock(&hdev->cmd_sync_work_lock);
  lock(&hdev->lock);

 *** DEADLOCK ***

2 locks held by syz.3.96/6244:
 #0: ffff88805a706258 (sk_lock-AF_BLUETOOTH-BTPROTO_HCI){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1611 [inline]
 #0: ffff88805a706258 (sk_lock-AF_BLUETOOTH-BTPROTO_HCI){+.+.}-{0:0}, at: hci_sock_bind+0x111/0x16f0 net/bluetooth/hci_sock.c:1202
 #1: ffff88807abf0690 (&hdev->cmd_sync_work_lock){+.+.}-{3:3}, at: hci_cmd_sync_dequeue+0x50/0x1f0 net/bluetooth/hci_sync.c:883

stack backtrace:
CPU: 0 UID: 0 PID: 6244 Comm: syz.3.96 Not tainted 6.12.0-rc4-syzkaller-00161-gae90f6a6170d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_circular_bug+0x41c/0x610 kernel/locking/lockdep.c:2074
 check_noncircular+0x31a/0x400 kernel/locking/lockdep.c:2206
 check_prev_add kernel/locking/lockdep.c:3161 [inline]
 check_prevs_add kernel/locking/lockdep.c:3280 [inline]
 validate_chain kernel/locking/lockdep.c:3904 [inline]
 __lock_acquire+0x250b/0x3ce0 kernel/locking/lockdep.c:5202
 lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5825
 __mutex_lock_common kernel/locking/mutex.c:608 [inline]
 __mutex_lock+0x175/0x9c0 kernel/locking/mutex.c:752
 mgmt_remove_adv_monitor_complete+0x9e/0x2e0 net/bluetooth/mgmt.c:5454
 _hci_cmd_sync_cancel_entry.constprop.0+0x6f/0x1d0 net/bluetooth/hci_sync.c:641
 hci_cmd_sync_dequeue+0x178/0x1f0 net/bluetooth/hci_sync.c:886
 cmd_complete_rsp+0x46/0x1e0 net/bluetooth/mgmt.c:1461
 mgmt_pending_foreach+0xe2/0x140 net/bluetooth/mgmt_util.c:259
 mgmt_index_removed+0x145/0x300 net/bluetooth/mgmt.c:9407
 hci_sock_bind+0xc49/0x16f0 net/bluetooth/hci_sock.c:1307
 __sys_bind_socket net/socket.c:1843 [inline]
 __sys_bind_socket net/socket.c:1835 [inline]
 __sys_bind+0x1ee/0x220 net/socket.c:1867
 __do_sys_bind net/socket.c:1875 [inline]
 __se_sys_bind net/socket.c:1873 [inline]
 __x64_sys_bind+0x72/0xb0 net/socket.c:1873
 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
RIP: 0033:0x7ff061f7e719
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:00007ff062d6a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000031
RAX: ffffffffffffffda RBX: 00007ff062135f80 RCX: 00007ff061f7e719
RDX: 0000000000000006 RSI: 0000000020000040 RDI: 0000000000000004
RBP: 00007ff061ff12be R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff062135f80 R15: 00007ffeecd43be8
 </TASK>
==================================================================
BUG: KASAN: slab-use-after-free in cmd_complete_rsp+0x1b3/0x1e0 net/bluetooth/mgmt.c:1463
Read of size 8 at addr ffff88807d6085c0 by task syz.3.96/6244

CPU: 0 UID: 0 PID: 6244 Comm: syz.3.96 Not tainted 6.12.0-rc4-syzkaller-00161-gae90f6a6170d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __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
 cmd_complete_rsp+0x1b3/0x1e0 net/bluetooth/mgmt.c:1463
 mgmt_pending_foreach+0xe2/0x140 net/bluetooth/mgmt_util.c:259
 mgmt_index_removed+0x145/0x300 net/bluetooth/mgmt.c:9407
 hci_sock_bind+0xc49/0x16f0 net/bluetooth/hci_sock.c:1307
 __sys_bind_socket net/socket.c:1843 [inline]
 __sys_bind_socket net/socket.c:1835 [inline]
 __sys_bind+0x1ee/0x220 net/socket.c:1867
 __do_sys_bind net/socket.c:1875 [inline]
 __se_sys_bind net/socket.c:1873 [inline]
 __x64_sys_bind+0x72/0xb0 net/socket.c:1873
 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
RIP: 0033:0x7ff061f7e719
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:00007ff062d6a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000031
RAX: ffffffffffffffda RBX: 00007ff062135f80 RCX: 00007ff061f7e719
RDX: 0000000000000006 RSI: 0000000020000040 RDI: 0000000000000004
RBP: 00007ff061ff12be R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff062135f80 R15: 00007ffeecd43be8
 </TASK>

Allocated by task 6241:
 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
 kmalloc_noprof include/linux/slab.h:878 [inline]
 kzalloc_noprof include/linux/slab.h:1014 [inline]
 mgmt_pending_new+0x5b/0x290 net/bluetooth/mgmt_util.c:269
 mgmt_pending_add+0x36/0x160 net/bluetooth/mgmt_util.c:296
 remove_adv_monitor+0x124/0x1b0 net/bluetooth/mgmt.c:5498
 hci_mgmt_cmd net/bluetooth/hci_sock.c:1712 [inline]
 hci_sock_sendmsg+0x152b/0x25e0 net/bluetooth/hci_sock.c:1832
 sock_sendmsg_nosec net/socket.c:729 [inline]
 __sock_sendmsg net/socket.c:744 [inline]
 sock_write_iter+0x501/0x5b0 net/socket.c:1165
 new_sync_write fs/read_write.c:590 [inline]
 vfs_write+0x6b8/0x1140 fs/read_write.c:683
 ksys_write+0x1fa/0x260 fs/read_write.c:736
 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 6244:
 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
 mgmt_remove_adv_monitor_complete+0x1b7/0x2e0 net/bluetooth/mgmt.c:5463
 _hci_cmd_sync_cancel_entry.constprop.0+0x6f/0x1d0 net/bluetooth/hci_sync.c:641
 hci_cmd_sync_dequeue+0x178/0x1f0 net/bluetooth/hci_sync.c:886
 cmd_complete_rsp+0x46/0x1e0 net/bluetooth/mgmt.c:1461
 mgmt_pending_foreach+0xe2/0x140 net/bluetooth/mgmt_util.c:259
 mgmt_index_removed+0x145/0x300 net/bluetooth/mgmt.c:9407
 hci_sock_bind+0xc49/0x16f0 net/bluetooth/hci_sock.c:1307
 __sys_bind_socket net/socket.c:1843 [inline]
 __sys_bind_socket net/socket.c:1835 [inline]
 __sys_bind+0x1ee/0x220 net/socket.c:1867
 __do_sys_bind net/socket.c:1875 [inline]
 __se_sys_bind net/socket.c:1873 [inline]
 __x64_sys_bind+0x72/0xb0 net/socket.c:1873
 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 ffff88807d608580
 which belongs to the cache kmalloc-96 of size 96
The buggy address is located 64 bytes inside of
 freed 96-byte region [ffff88807d608580, ffff88807d6085e0)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7d608
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000000 ffff88801b041280 ffffea0000bda2c0 dead000000000002
raw: 0000000000000000 0000000000200020 00000001f5000000 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x52820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 1858, tgid 1858 (kworker/u8:6), ts 99313441398, free_ts 99312586007
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1537
 prep_new_page mm/page_alloc.c:1545 [inline]
 get_page_from_freelist+0x101e/0x3070 mm/page_alloc.c:3457
 __alloc_pages_noprof+0x223/0x25a0 mm/page_alloc.c:4733
 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+0x2ba/0x3f0 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]
 __kmalloc_cache_noprof+0x2b4/0x300 mm/slub.c:4290
 kmalloc_noprof include/linux/slab.h:878 [inline]
 dst_cow_metrics_generic+0x4c/0x1e0 net/core/dst.c:185
 dst_metrics_write_ptr include/net/dst.h:133 [inline]
 dst_metric_set include/net/dst.h:194 [inline]
 icmp6_dst_alloc+0x373/0x490 net/ipv6/route.c:3288
 mld_sendpack+0x5a9/0x11d0 net/ipv6/mcast.c:1808
 mld_send_initial_cr.part.0+0x1a1/0x260 net/ipv6/mcast.c:2237
 mld_send_initial_cr include/linux/refcount.h:192 [inline]
 ipv6_mc_dad_complete+0x22c/0x2b0 net/ipv6/mcast.c:2245
 addrconf_dad_completed+0xd40/0x1060 net/ipv6/addrconf.c:4342
 addrconf_dad_work+0x7fb/0x14d0 net/ipv6/addrconf.c:4270
 process_one_work+0x9c8/0x1ba0 kernel/workqueue.c:3229
page last free pid 53 tgid 53 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1108 [inline]
 free_unref_page+0x5f4/0xdc0 mm/page_alloc.c:2638
 rcu_do_batch kernel/rcu/tree.c:2567 [inline]
 rcu_core+0x7a0/0x14d0 kernel/rcu/tree.c:2823
 handle_softirqs+0x216/0x8f0 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu kernel/softirq.c:637 [inline]
 irq_exit_rcu+0xbb/0x120 kernel/softirq.c:649
 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

Memory state around the buggy address:
 ffff88807d608480: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc
 ffff88807d608500: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc
>ffff88807d608580: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
                                           ^
 ffff88807d608600: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
 ffff88807d608680: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc
==================================================================
==================================================================
BUG: KASAN: slab-use-after-free in cmd_status_rsp net/bluetooth/mgmt.c:1450 [inline]
BUG: KASAN: slab-use-after-free in cmd_complete_rsp+0x199/0x1e0 net/bluetooth/mgmt.c:1470
Read of size 2 at addr ffff88807d608590 by task syz.3.96/6244

CPU: 0 UID: 0 PID: 6244 Comm: syz.3.96 Tainted: G    B              6.12.0-rc4-syzkaller-00161-gae90f6a6170d #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __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
 cmd_status_rsp net/bluetooth/mgmt.c:1450 [inline]
 cmd_complete_rsp+0x199/0x1e0 net/bluetooth/mgmt.c:1470
 mgmt_pending_foreach+0xe2/0x140 net/bluetooth/mgmt_util.c:259
 mgmt_index_removed+0x145/0x300 net/bluetooth/mgmt.c:9407
 hci_sock_bind+0xc49/0x16f0 net/bluetooth/hci_sock.c:1307
 __sys_bind_socket net/socket.c:1843 [inline]
 __sys_bind_socket net/socket.c:1835 [inline]
 __sys_bind+0x1ee/0x220 net/socket.c:1867
 __do_sys_bind net/socket.c:1875 [inline]
 __se_sys_bind net/socket.c:1873 [inline]
 __x64_sys_bind+0x72/0xb0 net/socket.c:1873
 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
RIP: 0033:0x7ff061f7e719
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:00007ff062d6a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000031
RAX: ffffffffffffffda RBX: 00007ff062135f80 RCX: 00007ff061f7e719
RDX: 0000000000000006 RSI: 0000000020000040 RDI: 0000000000000004
RBP: 00007ff061ff12be R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff062135f80 R15: 00007ffeecd43be8
 </TASK>

Allocated by task 6241:
 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
 kmalloc_noprof include/linux/slab.h:878 [inline]
 kzalloc_noprof include/linux/slab.h:1014 [inline]
 mgmt_pending_new+0x5b/0x290 net/bluetooth/mgmt_util.c:269
 mgmt_pending_add+0x36/0x160 net/bluetooth/mgmt_util.c:296
 remove_adv_monitor+0x124/0x1b0 net/bluetooth/mgmt.c:5498
 hci_mgmt_cmd net/bluetooth/hci_sock.c:1712 [inline]
 hci_sock_sendmsg+0x152b/0x25e0 net/bluetooth/hci_sock.c:1832
 sock_sendmsg_nosec net/socket.c:729 [inline]
 __sock_sendmsg net/socket.c:744 [inline]
 sock_write_iter+0x501/0x5b0 net/socket.c:1165
 new_sync_write fs/read_write.c:590 [inline]
 vfs_write+0x6b8/0x1140 fs/read_write.c:683
 ksys_write+0x1fa/0x260 fs/read_write.c:736
 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 6244:
 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
 mgmt_remove_adv_monitor_complete+0x1b7/0x2e0 net/bluetooth/mgmt.c:5463
 _hci_cmd_sync_cancel_entry.constprop.0+0x6f/0x1d0 net/bluetooth/hci_sync.c:641
 hci_cmd_sync_dequeue+0x178/0x1f0 net/bluetooth/hci_sync.c:886
 cmd_complete_rsp+0x46/0x1e0 net/bluetooth/mgmt.c:1461
 mgmt_pending_foreach+0xe2/0x140 net/bluetooth/mgmt_util.c:259
 mgmt_index_removed+0x145/0x300 net/bluetooth/mgmt.c:9407
 hci_sock_bind+0xc49/0x16f0 net/bluetooth/hci_sock.c:1307
 __sys_bind_socket net/socket.c:1843 [inline]
 __sys_bind_socket net/socket.c:1835 [inline]
 __sys_bind+0x1ee/0x220 net/socket.c:1867
 __do_sys_bind net/socket.c:1875 [inline]
 __se_sys_bind net/socket.c:1873 [inline]
 __x64_sys_bind+0x72/0xb0 net/socket.c:1873
 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 ffff88807d608580
 which belongs to the cache kmalloc-96 of size 96
The buggy address is located 16 bytes inside of
 freed 96-byte region [ffff88807d608580, ffff88807d6085e0)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7d608
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000000 ffff88801b041280 ffffea0000bda2c0 dead000000000002
raw: 0000000000000000 0000000000200020 00000001f5000000 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x52820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 1858, tgid 1858 (kworker/u8:6), ts 99313441398, free_ts 99312586007
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1537
 prep_new_page mm/page_alloc.c:1545 [inline]
 get_page_from_freelist+0x101e/0x3070 mm/page_alloc.c:3457
 __alloc_pages_noprof+0x223/0x25a0 mm/page_alloc.c:4733
 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+0x2ba/0x3f0 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]
 __kmalloc_cache_noprof+0x2b4/0x300 mm/slub.c:4290
 kmalloc_noprof include/linux/slab.h:878 [inline]
 dst_cow_metrics_generic+0x4c/0x1e0 net/core/dst.c:185
 dst_metrics_write_ptr include/net/dst.h:133 [inline]
 dst_metric_set include/net/dst.h:194 [inline]
 icmp6_dst_alloc+0x373/0x490 net/ipv6/route.c:3288
 mld_sendpack+0x5a9/0x11d0 net/ipv6/mcast.c:1808
 mld_send_initial_cr.part.0+0x1a1/0x260 net/ipv6/mcast.c:2237
 mld_send_initial_cr include/linux/refcount.h:192 [inline]
 ipv6_mc_dad_complete+0x22c/0x2b0 net/ipv6/mcast.c:2245
 addrconf_dad_completed+0xd40/0x1060 net/ipv6/addrconf.c:4342
 addrconf_dad_work+0x7fb/0x14d0 net/ipv6/addrconf.c:4270
 process_one_work+0x9c8/0x1ba0 kernel/workqueue.c:3229
page last free pid 53 tgid 53 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1108 [inline]
 free_unref_page+0x5f4/0xdc0 mm/page_alloc.c:2638
 rcu_do_batch kernel/rcu/tree.c:2567 [inline]
 rcu_core+0x7a0/0x14d0 kernel/rcu/tree.c:2823
 handle_softirqs+0x216/0x8f0 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu kernel/softirq.c:637 [inline]
 irq_exit_rcu+0xbb/0x120 kernel/softirq.c:649
 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

Memory state around the buggy address:
 ffff88807d608480: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc
 ffff88807d608500: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc
>ffff88807d608580: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
                         ^
 ffff88807d608600: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
 ffff88807d608680: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
==================================================================
==================================================================
BUG: KASAN: slab-use-after-free in cmd_status_rsp net/bluetooth/mgmt.c:1450 [inline]
BUG: KASAN: slab-use-after-free in cmd_complete_rsp+0x1a9/0x1e0 net/bluetooth/mgmt.c:1470
Read of size 4 at addr ffff88807d608594 by task syz.3.96/6244

CPU: 0 UID: 0 PID: 6244 Comm: syz.3.96 Tainted: G    B              6.12.0-rc4-syzkaller-00161-gae90f6a6170d #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __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
 cmd_status_rsp net/bluetooth/mgmt.c:1450 [inline]
 cmd_complete_rsp+0x1a9/0x1e0 net/bluetooth/mgmt.c:1470
 mgmt_pending_foreach+0xe2/0x140 net/bluetooth/mgmt_util.c:259
 mgmt_index_removed+0x145/0x300 net/bluetooth/mgmt.c:9407
 hci_sock_bind+0xc49/0x16f0 net/bluetooth/hci_sock.c:1307
 __sys_bind_socket net/socket.c:1843 [inline]
 __sys_bind_socket net/socket.c:1835 [inline]
 __sys_bind+0x1ee/0x220 net/socket.c:1867
 __do_sys_bind net/socket.c:1875 [inline]
 __se_sys_bind net/socket.c:1873 [inline]
 __x64_sys_bind+0x72/0xb0 net/socket.c:1873
 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
RIP: 0033:0x7ff061f7e719
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:00007ff062d6a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000031
RAX: ffffffffffffffda RBX: 00007ff062135f80 RCX: 00007ff061f7e719
RDX: 0000000000000006 RSI: 0000000020000040 RDI: 0000000000000004
RBP: 00007ff061ff12be R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff062135f80 R15: 00007ffeecd43be8
 </TASK>

Allocated by task 6241:
 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
 kmalloc_noprof include/linux/slab.h:878 [inline]
 kzalloc_noprof include/linux/slab.h:1014 [inline]
 mgmt_pending_new+0x5b/0x290 net/bluetooth/mgmt_util.c:269
 mgmt_pending_add+0x36/0x160 net/bluetooth/mgmt_util.c:296
 remove_adv_monitor+0x124/0x1b0 net/bluetooth/mgmt.c:5498
 hci_mgmt_cmd net/bluetooth/hci_sock.c:1712 [inline]
 hci_sock_sendmsg+0x152b/0x25e0 net/bluetooth/hci_sock.c:1832
 sock_sendmsg_nosec net/socket.c:729 [inline]
 __sock_sendmsg net/socket.c:744 [inline]
 sock_write_iter+0x501/0x5b0 net/socket.c:1165
 new_sync_write fs/read_write.c:590 [inline]
 vfs_write+0x6b8/0x1140 fs/read_write.c:683
 ksys_write+0x1fa/0x260 fs/read_write.c:736
 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 6244:
 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
 mgmt_remove_adv_monitor_complete+0x1b7/0x2e0 net/bluetooth/mgmt.c:5463
 _hci_cmd_sync_cancel_entry.constprop.0+0x6f/0x1d0 net/bluetooth/hci_sync.c:641
 hci_cmd_sync_dequeue+0x178/0x1f0 net/bluetooth/hci_sync.c:886
 cmd_complete_rsp+0x46/0x1e0 net/bluetooth/mgmt.c:1461
 mgmt_pending_foreach+0xe2/0x140 net/bluetooth/mgmt_util.c:259
 mgmt_index_removed+0x145/0x300 net/bluetooth/mgmt.c:9407
 hci_sock_bind+0xc49/0x16f0 net/bluetooth/hci_sock.c:1307
 __sys_bind_socket net/socket.c:1843 [inline]
 __sys_bind_socket net/socket.c:1835 [inline]
 __sys_bind+0x1ee/0x220 net/socket.c:1867
 __do_sys_bind net/socket.c:1875 [inline]
 __se_sys_bind net/socket.c:1873 [inline]
 __x64_sys_bind+0x72/0xb0 net/socket.c:1873
 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 ffff88807d608580
 which belongs to the cache kmalloc-96 of size 96
The buggy address is located 20 bytes inside of
 freed 96-byte region [ffff88807d608580, ffff88807d6085e0)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7d608
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000000 ffff88801b041280 ffffea0000bda2c0 dead000000000002
raw: 0000000000000000 0000000000200020 00000001f5000000 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x52820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 1858, tgid 1858 (kworker/u8:6), ts 99313441398, free_ts 99312586007
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1537
 prep_new_page mm/page_alloc.c:1545 [inline]
 get_page_from_freelist+0x101e/0x3070 mm/page_alloc.c:3457
 __alloc_pages_noprof+0x223/0x25a0 mm/page_alloc.c:4733
 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+0x2ba/0x3f0 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]
 __kmalloc_cache_noprof+0x2b4/0x300 mm/slub.c:4290
 kmalloc_noprof include/linux/slab.h:878 [inline]
 dst_cow_metrics_generic+0x4c/0x1e0 net/core/dst.c:185
 dst_metrics_write_ptr include/net/dst.h:133 [inline]
 dst_metric_set include/net/dst.h:194 [inline]
 icmp6_dst_alloc+0x373/0x490 net/ipv6/route.c:3288
 mld_sendpack+0x5a9/0x11d0 net/ipv6/mcast.c:1808
 mld_send_initial_cr.part.0+0x1a1/0x260 net/ipv6/mcast.c:2237
 mld_send_initial_cr include/linux/refcount.h:192 [inline]
 ipv6_mc_dad_complete+0x22c/0x2b0 net/ipv6/mcast.c:2245
 addrconf_dad_completed+0xd40/0x1060 net/ipv6/addrconf.c:4342
 addrconf_dad_work+0x7fb/0x14d0 net/ipv6/addrconf.c:4270
 process_one_work+0x9c8/0x1ba0 kernel/workqueue.c:3229
page last free pid 53 tgid 53 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1108 [inline]
 free_unref_page+0x5f4/0xdc0 mm/page_alloc.c:2638
 rcu_do_batch kernel/rcu/tree.c:2567 [inline]
 rcu_core+0x7a0/0x14d0 kernel/rcu/tree.c:2823
 handle_softirqs+0x216/0x8f0 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu kernel/softirq.c:637 [inline]
 irq_exit_rcu+0xbb/0x120 kernel/softirq.c:649
 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

Memory state around the buggy address:
 ffff88807d608480: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc
 ffff88807d608500: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc
>ffff88807d608580: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
                         ^
 ffff88807d608600: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
 ffff88807d608680: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
==================================================================
==================================================================
BUG: KASAN: slab-use-after-free in cmd_status_rsp net/bluetooth/mgmt.c:1450 [inline]
BUG: KASAN: slab-use-after-free in cmd_complete_rsp+0x1ce/0x1e0 net/bluetooth/mgmt.c:1470
Read of size 8 at addr ffff88807d6085a8 by task syz.3.96/6244

CPU: 0 UID: 0 PID: 6244 Comm: syz.3.96 Tainted: G    B              6.12.0-rc4-syzkaller-00161-gae90f6a6170d #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __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
 cmd_status_rsp net/bluetooth/mgmt.c:1450 [inline]
 cmd_complete_rsp+0x1ce/0x1e0 net/bluetooth/mgmt.c:1470
 mgmt_pending_foreach+0xe2/0x140 net/bluetooth/mgmt_util.c:259
 mgmt_index_removed+0x145/0x300 net/bluetooth/mgmt.c:9407
 hci_sock_bind+0xc49/0x16f0 net/bluetooth/hci_sock.c:1307
 __sys_bind_socket net/socket.c:1843 [inline]
 __sys_bind_socket net/socket.c:1835 [inline]
 __sys_bind+0x1ee/0x220 net/socket.c:1867
 __do_sys_bind net/socket.c:1875 [inline]
 __se_sys_bind net/socket.c:1873 [inline]
 __x64_sys_bind+0x72/0xb0 net/socket.c:1873
 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
RIP: 0033:0x7ff061f7e719
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:00007ff062d6a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000031
RAX: ffffffffffffffda RBX: 00007ff062135f80 RCX: 00007ff061f7e719
RDX: 0000000000000006 RSI: 0000000020000040 RDI: 0000000000000004
RBP: 00007ff061ff12be R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff062135f80 R15: 00007ffeecd43be8
 </TASK>

Allocated by task 6241:
 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
 kmalloc_noprof include/linux/slab.h:878 [inline]
 kzalloc_noprof include/linux/slab.h:1014 [inline]
 mgmt_pending_new+0x5b/0x290 net/bluetooth/mgmt_util.c:269
 mgmt_pending_add+0x36/0x160 net/bluetooth/mgmt_util.c:296
 remove_adv_monitor+0x124/0x1b0 net/bluetooth/mgmt.c:5498
 hci_mgmt_cmd net/bluetooth/hci_sock.c:1712 [inline]
 hci_sock_sendmsg+0x152b/0x25e0 net/bluetooth/hci_sock.c:1832
 sock_sendmsg_nosec net/socket.c:729 [inline]
 __sock_sendmsg net/socket.c:744 [inline]
 sock_write_iter+0x501/0x5b0 net/socket.c:1165
 new_sync_write fs/read_write.c:590 [inline]
 vfs_write+0x6b8/0x1140 fs/read_write.c:683
 ksys_write+0x1fa/0x260 fs/read_write.c:736
 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 6244:
 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
 mgmt_remove_adv_monitor_complete+0x1b7/0x2e0 net/bluetooth/mgmt.c:5463
 _hci_cmd_sync_cancel_entry.constprop.0+0x6f/0x1d0 net/bluetooth/hci_sync.c:641
 hci_cmd_sync_dequeue+0x178/0x1f0 net/bluetooth/hci_sync.c:886
 cmd_complete_rsp+0x46/0x1e0 net/bluetooth/mgmt.c:1461
 mgmt_pending_foreach+0xe2/0x140 net/bluetooth/mgmt_util.c:259
 mgmt_index_removed+0x145/0x300 net/bluetooth/mgmt.c:9407
 hci_sock_bind+0xc49/0x16f0 net/bluetooth/hci_sock.c:1307
 __sys_bind_socket net/socket.c:1843 [inline]
 __sys_bind_socket net/socket.c:1835 [inline]
 __sys_bind+0x1ee/0x220 net/socket.c:1867
 __do_sys_bind net/socket.c:1875 [inline]
 __se_sys_bind net/socket.c:1873 [inline]
 __x64_sys_bind+0x72/0xb0 net/socket.c:1873
 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 ffff88807d608580
 which belongs to the cache kmalloc-96 of size 96
The buggy address is located 40 bytes inside of
 freed 96-byte region [ffff88807d608580, ffff88807d6085e0)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7d608
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000000 ffff88801b041280 ffffea0000bda2c0 dead000000000002
raw: 0000000000000000 0000000000200020 00000001f5000000 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x52820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 1858, tgid 1858 (kworker/u8:6), ts 99313441398, free_ts 99312586007
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1537
 prep_new_page mm/page_alloc.c:1545 [inline]
 get_page_from_freelist+0x101e/0x3070 mm/page_alloc.c:3457
 __alloc_pages_noprof+0x223/0x25a0 mm/page_alloc.c:4733
 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+0x2ba/0x3f0 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]
 __kmalloc_cache_noprof+0x2b4/0x300 mm/slub.c:4290
 kmalloc_noprof include/linux/slab.h:878 [inline]
 dst_cow_metrics_generic+0x4c/0x1e0 net/core/dst.c:185
 dst_metrics_write_ptr include/net/dst.h:133 [inline]
 dst_metric_set include/net/dst.h:194 [inline]
 icmp6_dst_alloc+0x373/0x490 net/ipv6/route.c:3288
 mld_sendpack+0x5a9/0x11d0 net/ipv6/mcast.c:1808
 mld_send_initial_cr.part.0+0x1a1/0x260 net/ipv6/mcast.c:2237
 mld_send_initial_cr include/linux/refcount.h:192 [inline]
 ipv6_mc_dad_complete+0x22c/0x2b0 net/ipv6/mcast.c:2245
 addrconf_dad_completed+0xd40/0x1060 net/ipv6/addrconf.c:4342
 addrconf_dad_work+0x7fb/0x14d0 net/ipv6/addrconf.c:4270
 process_one_work+0x9c8/0x1ba0 kernel/workqueue.c:3229
page last free pid 53 tgid 53 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1108 [inline]
 free_unref_page+0x5f4/0xdc0 mm/page_alloc.c:2638
 rcu_do_batch kernel/rcu/tree.c:2567 [inline]
 rcu_core+0x7a0/0x14d0 kernel/rcu/tree.c:2823
 handle_softirqs+0x216/0x8f0 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu kernel/softirq.c:637 [inline]
 irq_exit_rcu+0xbb/0x120 kernel/softirq.c:649
 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

Memory state around the buggy address:
 ffff88807d608480: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc
 ffff88807d608500: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc
>ffff88807d608580: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
                                  ^
 ffff88807d608600: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
 ffff88807d608680: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
==================================================================
==================================================================
BUG: KASAN: slab-use-after-free in hci_sock_get_cookie+0x42/0x50 net/bluetooth/hci_sock.c:96
Read of size 4 at addr ffff88805b57c5b8 by task syz.3.96/6244

CPU: 0 UID: 0 PID: 6244 Comm: syz.3.96 Tainted: G    B              6.12.0-rc4-syzkaller-00161-gae90f6a6170d #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __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
 hci_sock_get_cookie+0x42/0x50 net/bluetooth/hci_sock.c:96
 mgmt_cmd_status+0x229/0x520 net/bluetooth/mgmt_util.c:149
 cmd_status_rsp net/bluetooth/mgmt.c:1450 [inline]
 cmd_complete_rsp+0x165/0x1e0 net/bluetooth/mgmt.c:1470
 mgmt_pending_foreach+0xe2/0x140 net/bluetooth/mgmt_util.c:259
 mgmt_index_removed+0x145/0x300 net/bluetooth/mgmt.c:9407
 hci_sock_bind+0xc49/0x16f0 net/bluetooth/hci_sock.c:1307
 __sys_bind_socket net/socket.c:1843 [inline]
 __sys_bind_socket net/socket.c:1835 [inline]
 __sys_bind+0x1ee/0x220 net/socket.c:1867
 __do_sys_bind net/socket.c:1875 [inline]
 __se_sys_bind net/socket.c:1873 [inline]
 __x64_sys_bind+0x72/0xb0 net/socket.c:1873
 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
RIP: 0033:0x7ff061f7e719
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:00007ff062d6a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000031
RAX: ffffffffffffffda RBX: 00007ff062135f80 RCX: 00007ff061f7e719
RDX: 0000000000000006 RSI: 0000000020000040 RDI: 0000000000000004
RBP: 00007ff061ff12be R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff062135f80 R15: 00007ffeecd43be8
 </TASK>

Allocated by task 6241:
 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
 hci_sock_create+0xbc/0x1a0 net/bluetooth/hci_sock.c:2202
 bt_sock_create+0x185/0x350 net/bluetooth/af_bluetooth.c:132
 __sock_create+0x331/0x840 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 6244:
 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]
 mgmt_pending_free+0xc0/0xf0 net/bluetooth/mgmt_util.c:307
 mgmt_remove_adv_monitor_complete+0x1b7/0x2e0 net/bluetooth/mgmt.c:5463
 _hci_cmd_sync_cancel_entry.constprop.0+0x6f/0x1d0 net/bluetooth/hci_sync.c:641
 hci_cmd_sync_dequeue+0x178/0x1f0 net/bluetooth/hci_sync.c:886
 cmd_complete_rsp+0x46/0x1e0 net/bluetooth/mgmt.c:1461
 mgmt_pending_foreach+0xe2/0x140 net/bluetooth/mgmt_util.c:259
 mgmt_index_removed+0x145/0x300 net/bluetooth/mgmt.c:9407
 hci_sock_bind+0xc49/0x16f0 net/bluetooth/hci_sock.c:1307
 __sys_bind_socket net/socket.c:1843 [inline]
 __sys_bind_socket net/socket.c:1835 [inline]
 __sys_bind+0x1ee/0x220 net/socket.c:1867
 __do_sys_bind net/socket.c:1875 [inline]
 __se_sys_bind net/socket.c:1873 [inline]
 __x64_sys_bind+0x72/0xb0 net/socket.c:1873
 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 ffff88805b57c000
 which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 1464 bytes inside of
 freed 2048-byte region [ffff88805b57c000, ffff88805b57c800)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5b578
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 ffff88801b042000 0000000000000000 0000000000000001
raw: 0000000000000000 0000000000080008 00000001f5000000 0000000000000000
head: 00fff00000000040 ffff88801b042000 0000000000000000 0000000000000001
head: 0000000000000000 0000000000080008 00000001f5000000 0000000000000000
head: 00fff00000000003 ffffea00016d5e01 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 5847, tgid 5847 (syz-executor), ts 92321174332, free_ts 31348293274
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1537
 prep_new_page mm/page_alloc.c:1545 [inline]
 get_page_from_freelist+0x101e/0x3070 mm/page_alloc.c:3457
 __alloc_pages_noprof+0x223/0x25a0 mm/page_alloc.c:4733
 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+0x2ba/0x3f0 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]
 __kmalloc_cache_noprof+0x2b4/0x300 mm/slub.c:4290
 kmalloc_noprof include/linux/slab.h:878 [inline]
 rtnl_newlink+0x49/0xa0 net/core/rtnetlink.c:3768
 rtnetlink_rcv_msg+0x3ca/0xea0 net/core/rtnetlink.c:6675
 netlink_rcv_skb+0x16e/0x440 net/netlink/af_netlink.c:2551
 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
 netlink_unicast+0x53f/0x7f0 net/netlink/af_netlink.c:1357
 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:729 [inline]
 __sock_sendmsg net/socket.c:744 [inline]
 __sys_sendto+0x47c/0x4d0 net/socket.c:2214
 __do_sys_sendto net/socket.c:2226 [inline]
 __se_sys_sendto net/socket.c:2222 [inline]
 __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2222
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
page last free pid 1 tgid 1 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1108 [inline]
 free_unref_page+0x5f4/0xdc0 mm/page_alloc.c:2638
 free_contig_range+0x135/0x3f0 mm/page_alloc.c:6748
 destroy_args+0xa27/0xe00 mm/debug_vm_pgtable.c:1017
 debug_vm_pgtable+0x168e/0x31a0 mm/debug_vm_pgtable.c:1397
 do_one_initcall+0x12b/0x700 init/main.c:1269
 do_initcall_level init/main.c:1331 [inline]
 do_initcalls init/main.c:1347 [inline]
 do_basic_setup init/main.c:1366 [inline]
 kernel_init_freeable+0x5c7/0x900 init/main.c:1580
 kernel_init+0x1c/0x2b0 init/main.c:1469
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

Memory state around the buggy address:
 ffff88805b57c480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88805b57c500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88805b57c580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                        ^
 ffff88805b57c600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88805b57c680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
==================================================================
BUG: KASAN: slab-use-after-free in sk_filter_trim_cap+0x9bd/0xac0 net/core/filter.c:156
Read of size 8 at addr ffff88805b57c178 by task syz.3.96/6244

CPU: 0 UID: 0 PID: 6244 Comm: syz.3.96 Tainted: G    B              6.12.0-rc4-syzkaller-00161-gae90f6a6170d #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __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
 sk_filter_trim_cap+0x9bd/0xac0 net/core/filter.c:156
 sk_filter include/linux/filter.h:1062 [inline]
 sock_queue_rcv_skb_reason+0x30/0xe0 net/core/sock.c:522
 sock_queue_rcv_skb include/net/sock.h:2380 [inline]
 mgmt_cmd_status+0x304/0x520 net/bluetooth/mgmt_util.c:156
 cmd_status_rsp net/bluetooth/mgmt.c:1450 [inline]
 cmd_complete_rsp+0x165/0x1e0 net/bluetooth/mgmt.c:1470
 mgmt_pending_foreach+0xe2/0x140 net/bluetooth/mgmt_util.c:259
 mgmt_index_removed+0x145/0x300 net/bluetooth/mgmt.c:9407
 hci_sock_bind+0xc49/0x16f0 net/bluetooth/hci_sock.c:1307
 __sys_bind_socket net/socket.c:1843 [inline]
 __sys_bind_socket net/socket.c:1835 [inline]
 __sys_bind+0x1ee/0x220 net/socket.c:1867
 __do_sys_bind net/socket.c:1875 [inline]
 __se_sys_bind net/socket.c:1873 [inline]
 __x64_sys_bind+0x72/0xb0 net/socket.c:1873
 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
RIP: 0033:0x7ff061f7e719
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:00007ff062d6a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000031
RAX: ffffffffffffffda RBX: 00007ff062135f80 RCX: 00007ff061f7e719
RDX: 0000000000000006 RSI: 0000000020000040 RDI: 0000000000000004
RBP: 00007ff061ff12be R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff062135f80 R15: 00007ffeecd43be8
 </TASK>

Allocated by task 6241:
 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
 hci_sock_create+0xbc/0x1a0 net/bluetooth/hci_sock.c:2202
 bt_sock_create+0x185/0x350 net/bluetooth/af_bluetooth.c:132
 __sock_create+0x331/0x840 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 6244:
 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]
 mgmt_pending_free+0xc0/0xf0 net/bluetooth/mgmt_util.c:307
 mgmt_remove_adv_monitor_complete+0x1b7/0x2e0 net/bluetooth/mgmt.c:5463
 _hci_cmd_sync_cancel_entry.constprop.0+0x6f/0x1d0 net/bluetooth/hci_sync.c:641
 hci_cmd_sync_dequeue+0x178/0x1f0 net/bluetooth/hci_sync.c:886
 cmd_complete_rsp+0x46/0x1e0 net/bluetooth/mgmt.c:1461
 mgmt_pending_foreach+0xe2/0x140 net/bluetooth/mgmt_util.c:259
 mgmt_index_removed+0x145/0x300 net/bluetooth/mgmt.c:9407
 hci_sock_bind+0xc49/0x16f0 net/bluetooth/hci_sock.c:1307
 __sys_bind_socket net/socket.c:1843 [inline]
 __sys_bind_socket net/socket.c:1835 [inline]
 __sys_bind+0x1ee/0x220 net/socket.c:1867
 __do_sys_bind net/socket.c:1875 [inline]
 __se_sys_bind net/socket.c:1873 [inline]
 __x64_sys_bind+0x72/0xb0 net/socket.c:1873
 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 ffff88805b57c000
 which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 376 bytes inside of
 freed 2048-byte region [ffff88805b57c000, ffff88805b57c800)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5b578
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 ffff88801b042000 0000000000000000 0000000000000001
raw: 0000000000000000 0000000000080008 00000001f5000000 0000000000000000
head: 00fff00000000040 ffff88801b042000 0000000000000000 0000000000000001
head: 0000000000000000 0000000000080008 00000001f5000000 0000000000000000
head: 00fff00000000003 ffffea00016d5e01 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 5847, tgid 5847 (syz-executor), ts 92321174332, free_ts 31348293274
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1537
 prep_new_page mm/page_alloc.c:1545 [inline]
 get_page_from_freelist+0x101e/0x3070 mm/page_alloc.c:3457
 __alloc_pages_noprof+0x223/0x25a0 mm/page_alloc.c:4733
 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+0x2ba/0x3f0 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]
 __kmalloc_cache_noprof+0x2b4/0x300 mm/slub.c:4290
 kmalloc_noprof include/linux/slab.h:878 [inline]
 rtnl_newlink+0x49/0xa0 net/core/rtnetlink.c:3768
 rtnetlink_rcv_msg+0x3ca/0xea0 net/core/rtnetlink.c:6675
 netlink_rcv_skb+0x16e/0x440 net/netlink/af_netlink.c:2551
 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
 netlink_unicast+0x53f/0x7f0 net/netlink/af_netlink.c:1357
 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:729 [inline]
 __sock_sendmsg net/socket.c:744 [inline]
 __sys_sendto+0x47c/0x4d0 net/socket.c:2214
 __do_sys_sendto net/socket.c:2226 [inline]
 __se_sys_sendto net/socket.c:2222 [inline]
 __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2222
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
page last free pid 1 tgid 1 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1108 [inline]
 free_unref_page+0x5f4/0xdc0 mm/page_alloc.c:2638
 free_contig_range+0x135/0x3f0 mm/page_alloc.c:6748
 destroy_args+0xa27/0xe00 mm/debug_vm_pgtable.c:1017
 debug_vm_pgtable+0x168e/0x31a0 mm/debug_vm_pgtable.c:1397
 do_one_initcall+0x12b/0x700 init/main.c:1269
 do_initcall_level init/main.c:1331 [inline]
 do_initcalls init/main.c:1347 [inline]
 do_basic_setup init/main.c:1366 [inline]
 kernel_init_freeable+0x5c7/0x900 init/main.c:1580
 kernel_init+0x1c/0x2b0 init/main.c:1469
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

Memory state around the buggy address:
 ffff88805b57c000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88805b57c080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88805b57c100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                                ^
 ffff88805b57c180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88805b57c200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
==================================================================
BUG: KASAN: slab-use-after-free in instrument_atomic_read include/linux/instrumented.h:68 [inline]
BUG: KASAN: slab-use-after-free in atomic_read include/linux/atomic/atomic-instrumented.h:32 [inline]
BUG: KASAN: slab-use-after-free in __sock_queue_rcv_skb+0x3c/0xa80 net/core/sock.c:486
Read of size 4 at addr ffff88805b57c140 by task syz.3.96/6244

CPU: 1 UID: 0 PID: 6244 Comm: syz.3.96 Tainted: G    B              6.12.0-rc4-syzkaller-00161-gae90f6a6170d #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __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
 check_region_inline mm/kasan/generic.c:183 [inline]
 kasan_check_range+0xef/0x1a0 mm/kasan/generic.c:189
 instrument_atomic_read include/linux/instrumented.h:68 [inline]
 atomic_read include/linux/atomic/atomic-instrumented.h:32 [inline]
 __sock_queue_rcv_skb+0x3c/0xa80 net/core/sock.c:486
 sock_queue_rcv_skb_reason+0xa2/0xe0 net/core/sock.c:527
 sock_queue_rcv_skb include/net/sock.h:2380 [inline]
 mgmt_cmd_status+0x304/0x520 net/bluetooth/mgmt_util.c:156
 cmd_status_rsp net/bluetooth/mgmt.c:1450 [inline]
 cmd_complete_rsp+0x165/0x1e0 net/bluetooth/mgmt.c:1470
 mgmt_pending_foreach+0xe2/0x140 net/bluetooth/mgmt_util.c:259
 mgmt_index_removed+0x145/0x300 net/bluetooth/mgmt.c:9407
 hci_sock_bind+0xc49/0x16f0 net/bluetooth/hci_sock.c:1307
 __sys_bind_socket net/socket.c:1843 [inline]
 __sys_bind_socket net/socket.c:1835 [inline]
 __sys_bind+0x1ee/0x220 net/socket.c:1867
 __do_sys_bind net/socket.c:1875 [inline]
 __se_sys_bind net/socket.c:1873 [inline]
 __x64_sys_bind+0x72/0xb0 net/socket.c:1873
 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
RIP: 0033:0x7ff061f7e719
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:00007ff062d6a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000031
RAX: ffffffffffffffda RBX: 00007ff062135f80 RCX: 00007ff061f7e719
RDX: 0000000000000006 RSI: 0000000020000040 RDI: 0000000000000004
RBP: 00007ff061ff12be R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff062135f80 R15: 00007ffeecd43be8
 </TASK>

Allocated by task 6241:
 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
 hci_sock_create+0xbc/0x1a0 net/bluetooth/hci_sock.c:2202
 bt_sock_create+0x185/0x350 net/bluetooth/af_bluetooth.c:132
 __sock_create+0x331/0x840 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 6244:
 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]
 mgmt_pending_free+0xc0/0xf0 net/bluetooth/mgmt_util.c:307
 mgmt_remove_adv_monitor_complete+0x1b7/0x2e0 net/bluetooth/mgmt.c:5463
 _hci_cmd_sync_cancel_entry.constprop.0+0x6f/0x1d0 net/bluetooth/hci_sync.c:641
 hci_cmd_sync_dequeue+0x178/0x1f0 net/bluetooth/hci_sync.c:886
 cmd_complete_rsp+0x46/0x1e0 net/bluetooth/mgmt.c:1461
 mgmt_pending_foreach+0xe2/0x140 net/bluetooth/mgmt_util.c:259
 mgmt_index_removed+0x145/0x300 net/bluetooth/mgmt.c:9407
 hci_sock_bind+0xc49/0x16f0 net/bluetooth/hci_sock.c:1307
 __sys_bind_socket net/socket.c:1843 [inline]
 __sys_bind_socket net/socket.c:1835 [inline]
 __sys_bind+0x1ee/0x220 net/socket.c:1867
 __do_sys_bind net/socket.c:1875 [inline]
 __se_sys_bind net/socket.c:1873 [inline]
 __x64_sys_bind+0x72/0xb0 net/socket.c:1873
 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 ffff88805b57c000
 which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 320 bytes inside of
 freed 2048-byte region [ffff88805b57c000, ffff88805b57c800)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5b578
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 ffff88801b042000 0000000000000000 0000000000000001
raw: 0000000000000000 0000000000080008 00000001f5000000 0000000000000000
head: 00fff00000000040 ffff88801b042000 0000000000000000 0000000000000001
head: 0000000000000000 0000000000080008 00000001f5000000 0000000000000000
head: 00fff00000000003 ffffea00016d5e01 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 5847, tgid 5847 (syz-executor), ts 92321174332, free_ts 31348293274
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1537
 prep_new_page mm/page_alloc.c:1545 [inline]
 get_page_from_freelist+0x101e/0x3070 mm/page_alloc.c:3457
 __alloc_pages_noprof+0x223/0x25a0 mm/page_alloc.c:4733
 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+0x2ba/0x3f0 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]
 __kmalloc_cache_noprof+0x2b4/0x300 mm/slub.c:4290
 kmalloc_noprof include/linux/slab.h:878 [inline]
 rtnl_newlink+0x49/0xa0 net/core/rtnetlink.c:3768
 rtnetlink_rcv_msg+0x3ca/0xea0 net/core/rtnetlink.c:6675
 netlink_rcv_skb+0x16e/0x440 net/netlink/af_netlink.c:2551
 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
 netlink_unicast+0x53f/0x7f0 net/netlink/af_netlink.c:1357
 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:729 [inline]
 __sock_sendmsg net/socket.c:744 [inline]
 __sys_sendto+0x47c/0x4d0 net/socket.c:2214
 __do_sys_sendto net/socket.c:2226 [inline]
 __se_sys_sendto net/socket.c:2222 [inline]
 __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2222
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
page last free pid 1 tgid 1 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1108 [inline]
 free_unref_page+0x5f4/0xdc0 mm/page_alloc.c:2638
 free_contig_range+0x135/0x3f0 mm/page_alloc.c:6748
 destroy_args+0xa27/0xe00 mm/debug_vm_pgtable.c:1017
 debug_vm_pgtable+0x168e/0x31a0 mm/debug_vm_pgtable.c:1397
 do_one_initcall+0x12b/0x700 init/main.c:1269
 do_initcall_level init/main.c:1331 [inline]
 do_initcalls init/main.c:1347 [inline]
 do_basic_setup init/main.c:1366 [inline]
 kernel_init_freeable+0x5c7/0x900 init/main.c:1580
 kernel_init+0x1c/0x2b0 init/main.c:1469
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

Memory state around the buggy address:
 ffff88805b57c000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88805b57c080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88805b57c100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                           ^
 ffff88805b57c180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88805b57c200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
==================================================================
BUG: KASAN: slab-use-after-free in arch_atomic_read arch/x86/include/asm/atomic.h:23 [inline]
BUG: KASAN: slab-use-after-free in raw_atomic_read include/linux/atomic/atomic-arch-fallback.h:457 [inline]
BUG: KASAN: slab-use-after-free in atomic_read include/linux/atomic/atomic-instrumented.h:33 [inline]
BUG: KASAN: slab-use-after-free in __sock_queue_rcv_skb+0x730/0xa80 net/core/sock.c:486
Read of size 4 at addr ffff88805b57c140 by task syz.3.96/6244

CPU: 0 UID: 0 PID: 6244 Comm: syz.3.96 Tainted: G    B              6.12.0-rc4-syzkaller-00161-gae90f6a6170d #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __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
 arch_atomic_read arch/x86/include/asm/atomic.h:23 [inline]
 raw_atomic_read include/linux/atomic/atomic-arch-fallback.h:457 [inline]
 atomic_read include/linux/atomic/atomic-instrumented.h:33 [inline]
 __sock_queue_rcv_skb+0x730/0xa80 net/core/sock.c:486
 sock_queue_rcv_skb_reason+0xa2/0xe0 net/core/sock.c:527
 sock_queue_rcv_skb include/net/sock.h:2380 [inline]
 mgmt_cmd_status+0x304/0x520 net/bluetooth/mgmt_util.c:156
 cmd_status_rsp net/bluetooth/mgmt.c:1450 [inline]
 cmd_complete_rsp+0x165/0x1e0 net/bluetooth/mgmt.c:1470
 mgmt_pending_foreach+0xe2/0x140 net/bluetooth/mgmt_util.c:259
 mgmt_index_removed+0x145/0x300 net/bluetooth/mgmt.c:9407
 hci_sock_bind+0xc49/0x16f0 net/bluetooth/hci_sock.c:1307
 __sys_bind_socket net/socket.c:1843 [inline]
 __sys_bind_socket net/socket.c:1835 [inline]
 __sys_bind+0x1ee/0x220 net/socket.c:1867
 __do_sys_bind net/socket.c:1875 [inline]
 __se_sys_bind net/socket.c:1873 [inline]
 __x64_sys_bind+0x72/0xb0 net/socket.c:1873
 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
RIP: 0033:0x7ff061f7e719
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:00007ff062d6a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000031
RAX: ffffffffffffffda RBX: 00007ff062135f80 RCX: 00007ff061f7e719
RDX: 0000000000000006 RSI: 0000000020000040 RDI: 0000000000000004
RBP: 00007ff061ff12be R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff062135f80 R15: 00007ffeecd43be8
 </TASK>

Allocated by task 6241:
 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
 hci_sock_create+0xbc/0x1a0 net/bluetooth/hci_sock.c:2202
 bt_sock_create+0x185/0x350 net/bluetooth/af_bluetooth.c:132
 __sock_create+0x331/0x840 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 6244:
 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]
 mgmt_pending_free+0xc0/0xf0 net/bluetooth/mgmt_util.c:307
 mgmt_remove_adv_monitor_complete+0x1b7/0x2e0 net/bluetooth/mgmt.c:5463
 _hci_cmd_sync_cancel_entry.constprop.0+0x6f/0x1d0 net/bluetooth/hci_sync.c:641
 hci_cmd_sync_dequeue+0x178/0x1f0 net/bluetooth/hci_sync.c:886
 cmd_complete_rsp+0x46/0x1e0 net/bluetooth/mgmt.c:1461
 mgmt_pending_foreach+0xe2/0x140 net/bluetooth/mgmt_util.c:259
 mgmt_index_removed+0x145/0x300 net/bluetooth/mgmt.c:9407
 hci_sock_bind+0xc49/0x16f0 net/bluetooth/hci_sock.c:1307
 __sys_bind_socket net/socket.c:1843 [inline]
 __sys_bind_socket net/socket.c:1835 [inline]
 __sys_bind+0x1ee/0x220 net/socket.c:1867
 __do_sys_bind net/socket.c:1875 [inline]
 __se_sys_bind net/socket.c:1873 [inline]
 __x64_sys_bind+0x72/0xb0 net/socket.c:1873
 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 ffff88805b57c000
 which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 320 bytes inside of
 freed 2048-byte region [ffff88805b57c000, ffff88805b57c800)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5b578
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 ffff88801b042000 0000000000000000 0000000000000001
raw: 0000000000000000 0000000000080008 00000001f5000000 0000000000000000
head: 00fff00000000040 ffff88801b042000 0000000000000000 0000000000000001
head: 0000000000000000 0000000000080008 00000001f5000000 0000000000000000
head: 00fff00000000003 ffffea00016d5e01 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 5847, tgid 5847 (syz-executor), ts 92321174332, free_ts 31348293274
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1537
 prep_new_page mm/page_alloc.c:1545 [inline]
 get_page_from_freelist+0x101e/0x3070 mm/page_alloc.c:3457
 __alloc_pages_noprof+0x223/0x25a0 mm/page_alloc.c:4733
 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+0x2ba/0x3f0 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]
 __kmalloc_cache_noprof+0x2b4/0x300 mm/slub.c:4290
 kmalloc_noprof include/linux/slab.h:878 [inline]
 rtnl_newlink+0x49/0xa0 net/core/rtnetlink.c:3768
 rtnetlink_rcv_msg+0x3ca/0xea0 net/core/rtnetlink.c:6675
 netlink_rcv_skb+0x16e/0x440 net/netlink/af_netlink.c:2551
 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
 netlink_unicast+0x53f/0x7f0 net/netlink/af_netlink.c:1357
 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:729 [inline]
 __sock_sendmsg net/socket.c:744 [inline]
 __sys_sendto+0x47c/0x4d0 net/socket.c:2214
 __do_sys_sendto net/socket.c:2226 [inline]
 __se_sys_sendto net/socket.c:2222 [inline]
 __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2222
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
page last free pid 1 tgid 1 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1108 [inline]
 free_unref_page+0x5f4/0xdc0 mm/page_alloc.c:2638
 free_contig_range+0x135/0x3f0 mm/page_alloc.c:6748
 destroy_args+0xa27/0xe00 mm/debug_vm_pgtable.c:1017
 debug_vm_pgtable+0x168e/0x31a0 mm/debug_vm_pgtable.c:1397
 do_one_initcall+0x12b/0x700 init/main.c:1269
 do_initcall_level init/main.c:1331 [inline]
 do_initcalls init/main.c:1347 [inline]
 do_basic_setup init/main.c:1366 [inline]
 kernel_init_freeable+0x5c7/0x900 init/main.c:1580
 kernel_init+0x1c/0x2b0 init/main.c:1469
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

Memory state around the buggy address:
 ffff88805b57c000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88805b57c080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88805b57c100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                           ^
 ffff88805b57c180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88805b57c200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
==================================================================
BUG: KASAN: slab-use-after-free in __sock_queue_rcv_skb+0x73a/0xa80 net/core/sock.c:486
Read of size 4 at addr ffff88805b57c174 by task syz.3.96/6244

CPU: 0 UID: 0 PID: 6244 Comm: syz.3.96 Tainted: G    B              6.12.0-rc4-syzkaller-00161-gae90f6a6170d #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __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
 __sock_queue_rcv_skb+0x73a/0xa80 net/core/sock.c:486
 sock_queue_rcv_skb_reason+0xa2/0xe0 net/core/sock.c:527
 sock_queue_rcv_skb include/net/sock.h:2380 [inline]
 mgmt_cmd_status+0x304/0x520 net/bluetooth/mgmt_util.c:156
 cmd_status_rsp net/bluetooth/mgmt.c:1450 [inline]
 cmd_complete_rsp+0x165/0x1e0 net/bluetooth/mgmt.c:1470
 mgmt_pending_foreach+0xe2/0x140 net/bluetooth/mgmt_util.c:259
 mgmt_index_removed+0x145/0x300 net/bluetooth/mgmt.c:9407
 hci_sock_bind+0xc49/0x16f0 net/bluetooth/hci_sock.c:1307
 __sys_bind_socket net/socket.c:1843 [inline]
 __sys_bind_socket net/socket.c:1835 [inline]
 __sys_bind+0x1ee/0x220 net/socket.c:1867
 __do_sys_bind net/socket.c:1875 [inline]
 __se_sys_bind net/socket.c:1873 [inline]
 __x64_sys_bind+0x72/0xb0 net/socket.c:1873
 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
RIP: 0033:0x7ff061f7e719
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:00007ff062d6a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000031
RAX: ffffffffffffffda RBX: 00007ff062135f80 RCX: 00007ff061f7e719
RDX: 0000000000000006 RSI: 0000000020000040 RDI: 0000000000000004
RBP: 00007ff061ff12be R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff062135f80 R15: 00007ffeecd43be8
 </TASK>

Allocated by task 6241:
 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
 hci_sock_create+0xbc/0x1a0 net/bluetooth/hci_sock.c:2202
 bt_sock_create+0x185/0x350 net/bluetooth/af_bluetooth.c:132
 __sock_create+0x331/0x840 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 6244:
 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]
 mgmt_pending_free+0xc0/0xf0 net/bluetooth/mgmt_util.c:307
 mgmt_remove_adv_monitor_complete+0x1b7/0x2e0 net/bluetooth/mgmt.c:5463
 _hci_cmd_sync_cancel_entry.constprop.0+0x6f/0x1d0 net/bluetooth/hci_sync.c:641
 hci_cmd_sync_dequeue+0x178/0x1f0 net/bluetooth/hci_sync.c:886
 cmd_complete_rsp+0x46/0x1e0 net/bluetooth/mgmt.c:1461
 mgmt_pending_foreach+0xe2/0x140 net/bluetooth/mgmt_util.c:259
 mgmt_index_removed+0x145/0x300 net/bluetooth/mgmt.c:9407
 hci_sock_bind+0xc49/0x16f0 net/bluetooth/hci_sock.c:1307
 __sys_bind_socket net/socket.c:1843 [inline]
 __sys_bind_socket net/socket.c:1835 [inline]
 __sys_bind+0x1ee/0x220 net/socket.c:1867
 __do_sys_bind net/socket.c:1875 [inline]
 __se_sys_bind net/socket.c:1873 [inline]
 __x64_sys_bind+0x72/0xb0 net/socket.c:1873
 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 ffff88805b57c000
 which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 372 bytes inside of
 freed 2048-byte region [ffff88805b57c000, ffff88805b57c800)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5b578
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 ffff88801b042000 0000000000000000 0000000000000001
raw: 0000000000000000 0000000000080008 00000001f5000000 0000000000000000
head: 00fff00000000040 ffff88801b042000 0000000000000000 0000000000000001
head: 0000000000000000 0000000000080008 00000001f5000000 0000000000000000
head: 00fff00000000003 ffffea00016d5e01 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 5847, tgid 5847 (syz-executor), ts 92321174332, free_ts 31348293274
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1537
 prep_new_page mm/page_alloc.c:1545 [inline]
 get_page_from_freelist+0x101e/0x3070 mm/page_alloc.c:3457
 __alloc_pages_noprof+0x223/0x25a0 mm/page_alloc.c:4733
 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+0x2ba/0x3f0 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]
 __kmalloc_cache_noprof+0x2b4/0x300 mm/slub.c:4290
 kmalloc_noprof include/linux/slab.h:878 [inline]
 rtnl_newlink+0x49/0xa0 net/core/rtnetlink.c:3768
 rtnetlink_rcv_msg+0x3ca/0xea0 net/core/rtnetlink.c:6675
 netlink_rcv_skb+0x16e/0x440 net/netlink/af_netlink.c:2551
 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
 netlink_unicast+0x53f/0x7f0 net/netlink/af_netlink.c:1357
 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:729 [inline]
 __sock_sendmsg net/socket.c:744 [inline]
 __sys_sendto+0x47c/0x4d0 net/socket.c:2214
 __do_sys_sendto net/socket.c:2226 [inline]
 __se_sys_sendto net/socket.c:2222 [inline]
 __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2222
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
page last free pid 1 tgid 1 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1108 [inline]
 free_unref_page+0x5f4/0xdc0 mm/page_alloc.c:2638
 free_contig_range+0x135/0x3f0 mm/page_alloc.c:6748
 destroy_args+0xa27/0xe00 mm/debug_vm_pgtable.c:1017
 debug_vm_pgtable+0x168e/0x31a0 mm/debug_vm_pgtable.c:1397
 do_one_initcall+0x12b/0x700 init/main.c:1269
 do_initcall_level init/main.c:1331 [inline]
 do_initcalls init/main.c:1347 [inline]
 do_basic_setup init/main.c:1366 [inline]
 kernel_init_freeable+0x5c7/0x900 init/main.c:1580
 kernel_init+0x1c/0x2b0 init/main.c:1469
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

Memory state around the buggy address:
 ffff88805b57c000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88805b57c080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88805b57c100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                             ^
 ffff88805b57c180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88805b57c200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
==================================================================
BUG: KASAN: slab-use-after-free in sk_has_account include/net/sock.h:1510 [inline]
BUG: KASAN: slab-use-after-free in sk_rmem_schedule include/net/sock.h:1528 [inline]
BUG: KASAN: slab-use-after-free in __sock_queue_rcv_skb+0x9ec/0xa80 net/core/sock.c:492
Read of size 8 at addr ffff88805b57c028 by task syz.3.96/6244

CPU: 0 UID: 0 PID: 6244 Comm: syz.3.96 Tainted: G    B              6.12.0-rc4-syzkaller-00161-gae90f6a6170d #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __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
 sk_has_account include/net/sock.h:1510 [inline]
 sk_rmem_schedule include/net/sock.h:1528 [inline]
 __sock_queue_rcv_skb+0x9ec/0xa80 net/core/sock.c:492
 sock_queue_rcv_skb_reason+0xa2/0xe0 net/core/sock.c:527
 sock_queue_rcv_skb include/net/sock.h:2380 [inline]
 mgmt_cmd_status+0x304/0x520 net/bluetooth/mgmt_util.c:156
 cmd_status_rsp net/bluetooth/mgmt.c:1450 [inline]
 cmd_complete_rsp+0x165/0x1e0 net/bluetooth/mgmt.c:1470
 mgmt_pending_foreach+0xe2/0x140 net/bluetooth/mgmt_util.c:259
 mgmt_index_removed+0x145/0x300 net/bluetooth/mgmt.c:9407
 hci_sock_bind+0xc49/0x16f0 net/bluetooth/hci_sock.c:1307
 __sys_bind_socket net/socket.c:1843 [inline]
 __sys_bind_socket net/socket.c:1835 [inline]
 __sys_bind+0x1ee/0x220 net/socket.c:1867
 __do_sys_bind net/socket.c:1875 [inline]
 __se_sys_bind net/socket.c:1873 [inline]
 __x64_sys_bind+0x72/0xb0 net/socket.c:1873
 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
RIP: 0033:0x7ff061f7e719
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:00007ff062d6a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000031
RAX: ffffffffffffffda RBX: 00007ff062135f80 RCX: 00007ff061f7e719
RDX: 0000000000000006 RSI: 0000000020000040 RDI: 0000000000000004
RBP: 00007ff061ff12be R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff062135f80 R15: 00007ffeecd43be8
 </TASK>

Allocated by task 6241:
 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
 hci_sock_create+0xbc/0x1a0 net/bluetooth/hci_sock.c:2202
 bt_sock_create+0x185/0x350 net/bluetooth/af_bluetooth.c:132
 __sock_create+0x331/0x840 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 6244:
 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]
 mgmt_pending_free+0xc0/0xf0 net/bluetooth/mgmt_util.c:307
 mgmt_remove_adv_monitor_complete+0x1b7/0x2e0 net/bluetooth/mgmt.c:5463
 _hci_cmd_sync_cancel_entry.constprop.0+0x6f/0x1d0 net/bluetooth/hci_sync.c:641
 hci_cmd_sync_dequeue+0x178/0x1f0 net/bluetooth/hci_sync.c:886
 cmd_complete_rsp+0x46/0x1e0 net/bluetooth/mgmt.c:1461
 mgmt_pending_foreach+0xe2/0x140 net/bluetooth/mgmt_util.c:259
 mgmt_index_removed+0x145/0x300 net/bluetooth/mgmt.c:9407
 hci_sock_bind+0xc49/0x16f0 net/bluetooth/hci_sock.c:1307
 __sys_bind_socket net/socket.c:1843 [inline]
 __sys_bind_socket net/socket.c:1835 [inline]
 __sys_bind+0x1ee/0x220 net/socket.c:1867
 __do_sys_bind net/socket.c:1875 [inline]
 __se_sys_bind net/socket.c:1873 [inline]
 __x64_sys_bind+0x72/0xb0 net/socket.c:1873
 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 ffff88805b57c000
 which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 40 bytes inside of
 freed 2048-byte region [ffff88805b57c000, ffff88805b57c800)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5b578
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 ffff88801b042000 0000000000000000 0000000000000001
raw: 0000000000000000 0000000000080008 00000001f5000000 0000000000000000
head: 00fff00000000040 ffff88801b042000 0000000000000000 0000000000000001
head: 0000000000000000 0000000000080008 00000001f5000000 0000000000000000
head: 00fff00000000003 ffffea00016d5e01 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 5847, tgid 5847 (syz-executor), ts 92321174332, free_ts 31348293274
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1537
 prep_new_page mm/page_alloc.c:1545 [inline]
 get_page_from_freelist+0x101e/0x3070 mm/page_alloc.c:3457
 __alloc_pages_noprof+0x223/0x25a0 mm/page_alloc.c:4733
 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+0x2ba/0x3f0 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]
 __kmalloc_cache_noprof+0x2b4/0x300 mm/slub.c:4290
 kmalloc_noprof include/linux/slab.h:878 [inline]
 rtnl_newlink+0x49/0xa0 net/core/rtnetlink.c:3768
 rtnetlink_rcv_msg+0x3ca/0xea0 net/core/rtnetlink.c:6675
 netlink_rcv_skb+0x16e/0x440 net/netlink/af_netlink.c:2551
 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
 netlink_unicast+0x53f/0x7f0 net/netlink/af_netlink.c:1357
 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:729 [inline]
 __sock_sendmsg net/socket.c:744 [inline]
 __sys_sendto+0x47c/0x4d0 net/socket.c:2214
 __do_sys_sendto net/socket.c:2226 [inline]
 __se_sys_sendto net/socket.c:2222 [inline]
 __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2222
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
page last free pid 1 tgid 1 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1108 [inline]
 free_unref_page+0x5f4/0xdc0 mm/page_alloc.c:2638
 free_contig_range+0x135/0x3f0 mm/page_alloc.c:6748
 destroy_args+0xa27/0xe00 mm/debug_vm_pgtable.c:1017
 debug_vm_pgtable+0x168e/0x31a0 mm/debug_vm_pgtable.c:1397
 do_one_initcall+0x12b/0x700 init/main.c:1269
 do_initcall_level init/main.c:1331 [inline]
 do_initcalls init/main.c:1347 [inline]
 do_basic_setup init/main.c:1366 [inline]
 kernel_init_freeable+0x5c7/0x900 init/main.c:1580
 kernel_init+0x1c/0x2b0 init/main.c:1469
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

Memory state around the buggy address:
 ffff88805b57bf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88805b57bf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88805b57c000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                  ^
 ffff88805b57c080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88805b57c100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
==================================================================
BUG: KASAN: slab-use-after-free in instrument_atomic_read_write include/linux/instrumented.h:96 [inline]
BUG: KASAN: slab-use-after-free in atomic_add include/linux/atomic/atomic-instrumented.h:104 [inline]
BUG: KASAN: slab-use-after-free in skb_set_owner_r include/net/sock.h:2325 [inline]
BUG: KASAN: slab-use-after-free in __sock_queue_rcv_skb+0x295/0xa80 net/core/sock.c:498
Write of size 4 at addr ffff88805b57c140 by task syz.3.96/6244

CPU: 1 UID: 0 PID: 6244 Comm: syz.3.96 Tainted: G    B              6.12.0-rc4-syzkaller-00161-gae90f6a6170d #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __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
 check_region_inline mm/kasan/generic.c:183 [inline]
 kasan_check_range+0xef/0x1a0 mm/kasan/generic.c:189
 instrument_atomic_read_write include/linux/instrumented.h:96 [inline]
 atomic_add include/linux/atomic/atomic-instrumented.h:104 [inline]
 skb_set_owner_r include/net/sock.h:2325 [inline]
 __sock_queue_rcv_skb+0x295/0xa80 net/core/sock.c:498
 sock_queue_rcv_skb_reason+0xa2/0xe0 net/core/sock.c:527
 sock_queue_rcv_skb include/net/sock.h:2380 [inline]
 mgmt_cmd_status+0x304/0x520 net/bluetooth/mgmt_util.c:156
 cmd_status_rsp net/bluetooth/mgmt.c:1450 [inline]
 cmd_complete_rsp+0x165/0x1e0 net/bluetooth/mgmt.c:1470
 mgmt_pending_foreach+0xe2/0x140 net/bluetooth/mgmt_util.c:259
 mgmt_index_removed+0x145/0x300 net/bluetooth/mgmt.c:9407
 hci_sock_bind+0xc49/0x16f0 net/bluetooth/hci_sock.c:1307
 __sys_bind_socket net/socket.c:1843 [inline]
 __sys_bind_socket net/socket.c:1835 [inline]
 __sys_bind+0x1ee/0x220 net/socket.c:1867
 __do_sys_bind net/socket.c:1875 [inline]
 __se_sys_bind net/socket.c:1873 [inline]
 __x64_sys_bind+0x72/0xb0 net/socket.c:1873
 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
RIP: 0033:0x7ff061f7e719
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:00007ff062d6a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000031
RAX: ffffffffffffffda RBX: 00007ff062135f80 RCX: 00007ff061f7e719
RDX: 0000000000000006 RSI: 0000000020000040 RDI: 0000000000000004
RBP: 00007ff061ff12be R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff062135f80 R15: 00007ffeecd43be8
 </TASK>

Allocated by task 6241:
 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
 hci_sock_create+0xbc/0x1a0 net/bluetooth/hci_sock.c:2202
 bt_sock_create+0x185/0x350 net/bluetooth/af_bluetooth.c:132
 __sock_create+0x331/0x840 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 6244:
 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]
 mgmt_pending_free+0xc0/0xf0 net/bluetooth/mgmt_util.c:307
 mgmt_remove_adv_monitor_complete+0x1b7/0x2e0 net/bluetooth/mgmt.c:5463
 _hci_cmd_sync_cancel_entry.constprop.0+0x6f/0x1d0 net/bluetooth/hci_sync.c:641
 hci_cmd_sync_dequeue+0x178/0x1f0 net/bluetooth/hci_sync.c:886
 cmd_complete_rsp+0x46/0x1e0 net/bluetooth/mgmt.c:1461
 mgmt_pending_foreach+0xe2/0x140 net/bluetooth/mgmt_util.c:259
 mgmt_index_removed+0x145/0x300 net/bluetooth/mgmt.c:9407
 hci_sock_bind+0xc49/0x16f0 net/bluetooth/hci_sock.c:1307
 __sys_bind_socket net/socket.c:1843 [inline]
 __sys_bind_socket net/socket.c:1835 [inline]
 __sys_bind+0x1ee/0x220 net/socket.c:1867
 __do_sys_bind net/socket.c:1875 [inline]
 __se_sys_bind net/socket.c:1873 [inline]
 __x64_sys_bind+0x72/0xb0 net/socket.c:1873
 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 ffff88805b57c000
 which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 320 bytes inside of
 freed 2048-byte region [ffff88805b57c000, ffff88805b57c800)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5b578
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 ffff88801b042000 0000000000000000 0000000000000001
raw: 0000000000000000 0000000000080008 00000001f5000000 0000000000000000
head: 00fff00000000040 ffff88801b042000 0000000000000000 0000000000000001
head: 0000000000000000 0000000000080008 00000001f5000000 0000000000000000
head: 00fff00000000003 ffffea00016d5e01 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 5847, tgid 5847 (syz-executor), ts 92321174332, free_ts 31348293274
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1537
 prep_new_page mm/page_alloc.c:1545 [inline]
 get_page_from_freelist+0x101e/0x3070 mm/page_alloc.c:3457
 __alloc_pages_noprof+0x223/0x25a0 mm/page_alloc.c:4733
 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+0x2ba/0x3f0 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]
 __kmalloc_cache_noprof+0x2b4/0x300 mm/slub.c:4290
 kmalloc_noprof include/linux/slab.h:878 [inline]
 rtnl_newlink+0x49/0xa0 net/core/rtnetlink.c:3768
 rtnetlink_rcv_msg+0x3ca/0xea0 net/core/rtnetlink.c:6675
 netlink_rcv_skb+0x16e/0x440 net/netlink/af_netlink.c:2551
 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
 netlink_unicast+0x53f/0x7f0 net/netlink/af_netlink.c:1357
 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:729 [inline]
 __sock_sendmsg net/socket.c:744 [inline]
 __sys_sendto+0x47c/0x4d0 net/socket.c:2214
 __do_sys_sendto net/socket.c:2226 [inline]
 __se_sys_sendto net/socket.c:2222 [inline]
 __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2222
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
page last free pid 1 tgid 1 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1108 [inline]
 free_unref_page+0x5f4/0xdc0 mm/page_alloc.c:2638
 free_contig_range+0x135/0x3f0 mm/page_alloc.c:6748
 destroy_args+0xa27/0xe00 mm/debug_vm_pgtable.c:1017
 debug_vm_pgtable+0x168e/0x31a0 mm/debug_vm_pgtable.c:1397
 do_one_initcall+0x12b/0x700 init/main.c:1269
 do_initcall_level init/main.c:1331 [inline]
 do_initcalls init/main.c:1347 [inline]
 do_basic_setup init/main.c:1366 [inline]
 kernel_init_freeable+0x5c7/0x900 init/main.c:1580
 kernel_init+0x1c/0x2b0 init/main.c:1469
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

Memory state around the buggy address:
 ffff88805b57c000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88805b57c080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88805b57c100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                           ^
 ffff88805b57c180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88805b57c200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================