Warning: Permanently added '10.128.1.38' (ED25519) to the list of known hosts. [ 43.713229][ T6087] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 43.715877][ T6087] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 43.718120][ T6087] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 43.720868][ T6087] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 43.723422][ T6087] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 43.725543][ T6087] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 45.802796][ T5663] Bluetooth: hci0: command 0x0409 tx timeout executing program executing program executing program executing program executing program executing program executing program [ 47.872074][ T6087] Bluetooth: hci0: command 0x041b tx timeout executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 49.962133][ T5663] Bluetooth: hci0: command 0x040f tx timeout executing program executing program executing program executing program executing program executing program executing program [ 52.032102][ T6087] Bluetooth: hci0: command 0x0419 tx timeout executing program executing program executing program executing program executing program executing program [ 53.562567][ T10] ================================================================== [ 53.564678][ T10] BUG: KASAN: slab-use-after-free in sco_sock_timeout+0x64/0x25c [ 53.566508][ T10] Write of size 4 at addr ffff0000dba59080 by task kworker/0:1/10 [ 53.568371][ T10] [ 53.568935][ T10] CPU: 0 PID: 10 Comm: kworker/0:1 Not tainted 6.6.0-rc7-syzkaller-g8de1e7afcc1c #0 [ 53.571178][ T10] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 [ 53.573782][ T10] Workqueue: events sco_sock_timeout [ 53.575176][ T10] Call trace: [ 53.576078][ T10] dump_backtrace+0x1b8/0x1e4 [ 53.577319][ T10] show_stack+0x2c/0x44 [ 53.578396][ T10] dump_stack_lvl+0xd0/0x124 [ 53.579572][ T10] print_report+0x174/0x514 [ 53.580724][ T10] kasan_report+0xd8/0x138 [ 53.581869][ T10] kasan_check_range+0x254/0x294 [ 53.583124][ T10] __kasan_check_write+0x20/0x30 [ 53.584397][ T10] sco_sock_timeout+0x64/0x25c [ 53.585652][ T10] process_one_work+0x694/0x1204 [ 53.586983][ T10] worker_thread+0x938/0xef4 [ 53.588150][ T10] kthread+0x288/0x310 [ 53.589186][ T10] ret_from_fork+0x10/0x20 [ 53.590309][ T10] [ 53.590906][ T10] Allocated by task 6180: [ 53.592018][ T10] kasan_set_track+0x4c/0x7c [ 53.593247][ T10] kasan_save_alloc_info+0x24/0x30 [ 53.594580][ T10] __kasan_kmalloc+0xac/0xc4 [ 53.595803][ T10] __kmalloc+0xcc/0x1b8 [ 53.596899][ T10] sk_prot_alloc+0xc4/0x1f0 [ 53.598052][ T10] sk_alloc+0x44/0x3f4 [ 53.599093][ T10] bt_sock_alloc+0x4c/0x32c [ 53.600246][ T10] sco_sock_create+0xbc/0x31c [ 53.601463][ T10] bt_sock_create+0x14c/0x248 [ 53.602662][ T10] __sock_create+0x43c/0x884 [ 53.603847][ T10] __sys_socket+0x134/0x340 [ 53.605007][ T10] __arm64_sys_socket+0x7c/0x94 [ 53.606252][ T10] invoke_syscall+0x98/0x2b8 [ 53.607472][ T10] el0_svc_common+0x130/0x23c [ 53.608684][ T10] do_el0_svc+0x48/0x58 [ 53.609694][ T10] el0_svc+0x54/0x158 [ 53.610773][ T10] el0t_64_sync_handler+0x84/0xfc [ 53.612087][ T10] el0t_64_sync+0x190/0x194 [ 53.613230][ T10] [ 53.613812][ T10] Freed by task 6179: [ 53.614778][ T10] kasan_set_track+0x4c/0x7c [ 53.615929][ T10] kasan_save_free_info+0x38/0x5c [ 53.617233][ T10] ____kasan_slab_free+0x144/0x1c0 [ 53.618537][ T10] __kasan_slab_free+0x18/0x28 [ 53.619753][ T10] __kmem_cache_free+0x2ac/0x480 [ 53.621031][ T10] kfree+0xb8/0x19c [ 53.622030][ T10] __sk_destruct+0x4c0/0x770 [ 53.623201][ T10] __sk_free+0x37c/0x4e8 [ 53.624234][ T10] sk_free+0x60/0xc8 [ 53.625249][ T10] sco_sock_kill+0xfc/0x1b4 [ 53.626398][ T10] sco_sock_release+0x1fc/0x2c0 [ 53.627635][ T10] sock_close+0xa4/0x1e8 [ 53.628754][ T10] __fput+0x324/0x7f8 [ 53.629763][ T10] __fput_sync+0x60/0x9c [ 53.630857][ T10] __arm64_sys_close+0x150/0x1e0 [ 53.632200][ T10] invoke_syscall+0x98/0x2b8 [ 53.633383][ T10] el0_svc_common+0x130/0x23c [ 53.634566][ T10] do_el0_svc+0x48/0x58 [ 53.635594][ T10] el0_svc+0x54/0x158 [ 53.636640][ T10] el0t_64_sync_handler+0x84/0xfc [ 53.637878][ T10] el0t_64_sync+0x190/0x194 [ 53.639012][ T10] [ 53.639599][ T10] The buggy address belongs to the object at ffff0000dba59000 [ 53.639599][ T10] which belongs to the cache kmalloc-2k of size 2048 [ 53.643316][ T10] The buggy address is located 128 bytes inside of [ 53.643316][ T10] freed 2048-byte region [ffff0000dba59000, ffff0000dba59800) [ 53.646969][ T10] [ 53.647575][ T10] The buggy address belongs to the physical page: [ 53.649203][ T10] page:00000000f24a79df refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11ba58 [ 53.651866][ T10] head:00000000f24a79df order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 53.654183][ T10] flags: 0x5ffc00000000840(slab|head|node=0|zone=2|lastcpupid=0x7ff) [ 53.656211][ T10] page_type: 0xffffffff() [ 53.657364][ T10] raw: 05ffc00000000840 ffff0000c0002000 dead000000000122 0000000000000000 [ 53.659620][ T10] raw: 0000000000000000 0000000000080008 00000001ffffffff 0000000000000000 [ 53.661780][ T10] page dumped because: kasan: bad access detected [ 53.663453][ T10] [ 53.664060][ T10] Memory state around the buggy address: [ 53.665530][ T10] ffff0000dba58f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 53.667582][ T10] ffff0000dba59000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 53.669670][ T10] >ffff0000dba59080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 53.671776][ T10] ^ [ 53.672798][ T10] ffff0000dba59100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 53.674839][ T10] ffff0000dba59180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 53.676929][ T10] ================================================================== [ 53.679122][ T10] Disabling lock debugging due to kernel taint [ 53.680713][ T10] ------------[ cut here ]------------ [ 53.682118][ T10] refcount_t: addition on 0; use-after-free. [ 53.683896][ T10] WARNING: CPU: 0 PID: 10 at lib/refcount.c:25 refcount_warn_saturate+0x1a8/0x20c [ 53.686069][ T10] Modules linked in: [ 53.687102][ T10] CPU: 0 PID: 10 Comm: kworker/0:1 Tainted: G B 6.6.0-rc7-syzkaller-g8de1e7afcc1c #0 [ 53.689729][ T10] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 [ 53.692134][ T10] Workqueue: events sco_sock_timeout [ 53.693490][ T10] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 53.695436][ T10] pc : refcount_warn_saturate+0x1a8/0x20c [ 53.696918][ T10] lr : refcount_warn_saturate+0x1a8/0x20c [ 53.698403][ T10] sp : ffff800092d57af0 [ 53.699510][ T10] x29: ffff800092d57af0 x28: 1fffe0001a9b5a4a x27: dfff800000000000 [ 53.701611][ T10] x26: ffff0000c1084008 x25: ffff0000d4dad250 x24: ffff0001b418b500 [ 53.703707][ T10] x23: dfff800000000000 x22: 0000000000000000 x21: 0000000000000002 [ 53.705754][ T10] x20: ffff0000dba59080 x19: ffff8000910a2000 x18: ffff800092d57800 [ 53.707831][ T10] x17: 0000000000000000 x16: ffff80008a71b23c x15: 0000000000000001 [ 53.709956][ T10] x14: 1ffff000125aaeb0 x13: 0000000000000000 x12: 0000000000000000 [ 53.712035][ T10] x11: 0000000000000001 x10: 0000000000000000 x9 : c0b0806111008b00 [ 53.714131][ T10] x8 : c0b0806111008b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 53.716246][ T10] x5 : ffff800092d573d8 x4 : ffff80008e4210a0 x3 : ffff800082b180c4 [ 53.718264][ T10] x2 : 0000000000000001 x1 : 0000000000000001 x0 : 0000000000000000 [ 53.720388][ T10] Call trace: [ 53.721212][ T10] refcount_warn_saturate+0x1a8/0x20c [ 53.722612][ T10] sco_sock_timeout+0x19c/0x25c [ 53.723872][ T10] process_one_work+0x694/0x1204 [ 53.725142][ T10] worker_thread+0x938/0xef4 [ 53.726378][ T10] kthread+0x288/0x310 [ 53.727438][ T10] ret_from_fork+0x10/0x20 [ 53.728567][ T10] irq event stamp: 29659 [ 53.729662][ T10] hardirqs last enabled at (29659): [] exit_to_kernel_mode+0xdc/0x10c [ 53.732245][ T10] hardirqs last disabled at (29658): [] __do_softirq+0x950/0xd54 [ 53.734661][ T10] softirqs last enabled at (19646): [] __do_softirq+0xac0/0xd54 [ 53.737034][ T10] softirqs last disabled at (19597): [] ____do_softirq+0x14/0x20 [ 53.739440][ T10] ---[ end trace 0000000000000000 ]--- [ 53.740891][ T10] ------------[ cut here ]------------ [ 53.742260][ T10] refcount_t: underflow; use-after-free. [ 53.744011][ T10] WARNING: CPU: 0 PID: 10 at lib/refcount.c:28 refcount_warn_saturate+0x1c8/0x20c [ 53.746268][ T10] Modules linked in: [ 53.747195][ T10] CPU: 0 PID: 10 Comm: kworker/0:1 Tainted: G B W 6.6.0-rc7-syzkaller-g8de1e7afcc1c #0 [ 53.749748][ T10] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 [ 53.752206][ T10] Workqueue: events sco_sock_timeout [ 53.753590][ T10] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 53.755621][ T10] pc : refcount_warn_saturate+0x1c8/0x20c [ 53.757073][ T10] lr : refcount_warn_saturate+0x1c8/0x20c [ 53.758556][ T10] sp : ffff800092d57af0 [ 53.759632][ T10] x29: ffff800092d57af0 x28: 1fffe0001a9b5a4a x27: dfff800000000000 [ 53.761732][ T10] x26: ffff0000c1084008 x25: ffff0000d4dad250 x24: ffff0001b418b500 [ 53.763804][ T10] x23: dfff800000000000 x22: 0000000000000000 x21: 0000000000000003 [ 53.765826][ T10] x20: ffff0000dba59080 x19: ffff8000910a2000 x18: ffff800092d57800 [ 53.767865][ T10] x17: 0000000000000000 x16: ffff80008a71b23c x15: 0000000000000001 [ 53.769923][ T10] x14: 1fffe0003682f032 x13: 0000000000000000 x12: 0000000000000000 [ 53.771945][ T10] x11: 0000000000000000 x10: 0000000000000000 x9 : c0b0806111008b00 [ 53.774044][ T10] x8 : c0b0806111008b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 53.776119][ T10] x5 : ffff800092d573d8 x4 : ffff80008e4210a0 x3 : ffff8000805a359c [ 53.778159][ T10] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000 [ 53.780219][ T10] Call trace: [ 53.781079][ T10] refcount_warn_saturate+0x1c8/0x20c [ 53.782464][ T10] sco_sock_timeout+0x1b0/0x25c [ 53.783706][ T10] process_one_work+0x694/0x1204 [ 53.785021][ T10] worker_thread+0x938/0xef4 [ 53.786228][ T10] kthread+0x288/0x310 [ 53.787305][ T10] ret_from_fork+0x10/0x20 [ 53.788474][ T10] irq event stamp: 29659 [ 53.789522][ T10] hardirqs last enabled at (29659): [] exit_to_kernel_mode+0xdc/0x10c [ 53.792022][ T10] hardirqs last disabled at (29658): [] __do_softirq+0x950/0xd54 [ 53.794479][ T10] softirqs last enabled at (19646): [] __do_softirq+0xac0/0xd54 [ 53.796820][ T10] softirqs last disabled at (19597): [] ____do_softirq+0x14/0x20 [ 53.799247][ T10] ---[ end trace 0000000000000000 ]--- executing program executing program [ 54.112049][ T5663] Bluetooth: hci0: command 0x0407 tx timeout executing program executing program executing program executing program executing program executing program executing program [ 56.192098][ T5663] Bluetooth: hci0: command 0x0405 tx timeout executing program executing program executing program executing program executing program executing program executing program executing program [ 58.272031][ T5663] Bluetooth: hci0: command 0x0407 tx timeout executing program executing program executing program executing program executing program executing program executing program executing program [ 60.352032][ T5663] Bluetooth: hci0: command 0x0405 tx timeout executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 62.432090][ T5663] Bluetooth: hci0: command 0x0407 tx timeout executing program executing program executing program executing program