last executing test programs: kernel console output (not intermixed with test programs): Warning: Permanently added '10.128.0.193' (ED25519) to the list of known hosts. 1970/01/01 00:00:33 fuzzer started 1970/01/01 00:00:33 dialing manager at 10.128.0.169:30028 [ 33.875022][ T6291] cgroup: Unknown subsys name 'net' [ 33.960858][ T6298] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SS [ 34.081033][ T6291] cgroup: Unknown subsys name 'rlimit' 1970/01/01 00:00:34 starting 5 executor processes [ 35.043793][ T6314] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 35.046919][ T6314] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 35.049221][ T6314] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 35.051796][ T6314] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 35.054044][ T6314] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 35.056606][ T6314] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 35.066361][ T52] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 35.069609][ T5860] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 35.072146][ T5860] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 35.078323][ T6318] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 35.080848][ T6318] Bluetooth: hci1: unexpected cc 0x0c25 length: 249 > 3 [ 35.083016][ T6318] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 35.113182][ T52] Bluetooth: hci3: unexpected cc 0x0c03 length: 249 > 1 [ 35.117758][ T52] Bluetooth: hci3: unexpected cc 0x1003 length: 249 > 9 [ 35.123126][ T52] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 35.129407][ T6316] Bluetooth: hci3: unexpected cc 0x1001 length: 249 > 9 [ 35.130169][ T5860] Bluetooth: hci4: unexpected cc 0x0c03 length: 249 > 1 [ 35.131698][ T6316] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 35.134792][ T5860] Bluetooth: hci4: unexpected cc 0x1003 length: 249 > 9 [ 35.138207][ T5860] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 35.140190][ T6329] Bluetooth: hci4: unexpected cc 0x1001 length: 249 > 9 [ 35.142386][ T5860] Bluetooth: hci3: unexpected cc 0x0c23 length: 249 > 4 [ 35.145700][ T5860] Bluetooth: hci4: unexpected cc 0x0c23 length: 249 > 4 [ 35.147769][ T5860] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 35.150214][ T6329] Bluetooth: hci4: unexpected cc 0x0c25 length: 249 > 3 [ 35.152335][ T5860] Bluetooth: hci3: unexpected cc 0x0c25 length: 249 > 3 [ 35.154540][ T5860] Bluetooth: hci3: unexpected cc 0x0c38 length: 249 > 2 [ 35.157214][ T5860] Bluetooth: hci4: unexpected cc 0x0c38 length: 249 > 2 [ 35.159324][ T5860] Bluetooth: hci2: unexpected cc 0x0c25 length: 249 > 3 [ 35.161655][ T5860] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 35.165117][ T6321] ================================================================== [ 35.167240][ T6321] BUG: KASAN: slab-use-after-free in skb_release_data+0x504/0x618 [ 35.169421][ T6321] Read of size 1 at addr ffff0000c2c9643e by task syz-executor.3/6321 [ 35.171587][ T6321] [ 35.172231][ T6321] CPU: 1 PID: 6321 Comm: syz-executor.3 Tainted: G W 6.10.0-rc3-syzkaller-gac2193b4b460 #0 1970/01/01 00:00:35 SYZFATAL: failed to recv *flatrpc.HostMessageRaw: EOF [ 35.175177][ T6321] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 35.177888][ T6321] Call trace: [ 35.178768][ T6321] dump_backtrace+0x1b8/0x1e4 [ 35.180018][ T6321] show_stack+0x2c/0x3c [ 35.181131][ T6321] dump_stack_lvl+0xe4/0x150 [ 35.182465][ T6321] print_report+0x198/0x538 [ 35.183628][ T6321] kasan_report+0xd8/0x138 [ 35.184774][ T6321] __asan_report_load1_noabort+0x20/0x2c [ 35.186267][ T6321] skb_release_data+0x504/0x618 [ 35.187572][ T6321] kfree_skb_reason+0x1b8/0x490 [ 35.188870][ T6321] __hci_req_sync+0x4e8/0x798 [ 35.190123][ T6321] hci_req_sync+0xa0/0xcc [ 35.191281][ T6321] hci_dev_cmd+0x304/0x8c0 [ 35.192477][ T6321] hci_sock_ioctl+0x4b8/0x7e4 [ 35.193706][ T6321] sock_do_ioctl+0x134/0x2d0 [ 35.194945][ T6321] sock_ioctl+0x4ec/0x838 [ 35.196092][ T6321] __arm64_sys_ioctl+0x14c/0x1c8 [ 35.197351][ T6321] invoke_syscall+0x98/0x2b8 [ 35.198598][ T6321] el0_svc_common+0x130/0x23c [ 35.199823][ T6321] do_el0_svc+0x48/0x58 [ 35.200885][ T6321] el0_svc+0x54/0x168 [ 35.201948][ T6321] el0t_64_sync_handler+0x84/0xfc [ 35.203290][ T6321] el0t_64_sync+0x190/0x194 [ 35.204494][ T6321] [ 35.205096][ T6321] Allocated by task 5860: [ 35.206171][ T6321] kasan_save_track+0x40/0x78 [ 35.207432][ T6321] kasan_save_alloc_info+0x40/0x50 [ 35.208744][ T6321] __kasan_slab_alloc+0x74/0x8c [ 35.210033][ T6321] kmem_cache_alloc_noprof+0x1c0/0x350 [ 35.211506][ T6321] skb_clone+0x1c8/0x330 [ 35.212604][ T6321] hci_cmd_work+0x174/0x568 [ 35.213838][ T6321] process_one_work+0x79c/0x15b8 [ 35.215135][ T6321] worker_thread+0x938/0xef4 [ 35.216378][ T6321] kthread+0x288/0x310 [ 35.217462][ T6321] ret_from_fork+0x10/0x20 [ 35.218600][ T6321] [ 35.219177][ T6321] Freed by task 6318: [ 35.220221][ T6321] kasan_save_track+0x40/0x78 [ 35.221480][ T6321] kasan_save_free_info+0x54/0x6c [ 35.222800][ T6321] poison_slab_object+0x128/0x180 [ 35.224142][ T6321] __kasan_slab_free+0x3c/0x70 [ 35.225403][ T6321] kmem_cache_free+0x170/0x4d0 [ 35.226683][ T6321] kfree_skbmem+0x15c/0x1ec [ 35.227922][ T6321] kfree_skb_reason+0x1c0/0x490 [ 35.229238][ T6321] hci_req_sync_complete+0xb0/0x248 [ 35.230627][ T6321] hci_event_packet+0xab8/0x105c [ 35.231936][ T6321] hci_rx_work+0x318/0xa78 [ 35.233099][ T6321] process_one_work+0x79c/0x15b8 [ 35.234430][ T6321] worker_thread+0x938/0xef4 [ 35.235675][ T6321] kthread+0x288/0x310 [ 35.236738][ T6321] ret_from_fork+0x10/0x20 [ 35.237907][ T6321] [ 35.238510][ T6321] The buggy address belongs to the object at ffff0000c2c963c0 [ 35.238510][ T6321] which belongs to the cache skbuff_head_cache of size 240 [ 35.242423][ T6321] The buggy address is located 126 bytes inside of [ 35.242423][ T6321] freed 240-byte region [ffff0000c2c963c0, ffff0000c2c964b0) [ 35.246119][ T6321] [ 35.246726][ T6321] The buggy address belongs to the physical page: [ 35.248415][ T6321] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102c96 [ 35.250781][ T6321] flags: 0x5ffc00000000000(node=0|zone=2|lastcpupid=0x7ff) [ 35.252681][ T6321] page_type: 0xffffefff(slab) [ 35.253903][ T6321] raw: 05ffc00000000000 ffff0000c1bcc780 dead000000000122 0000000000000000 [ 35.256193][ T6321] raw: 0000000000000000 00000000000c000c 00000001ffffefff 0000000000000000 [ 35.258475][ T6321] page dumped because: kasan: bad access detected [ 35.260149][ T6321] [ 35.260777][ T6321] Memory state around the buggy address: [ 35.262291][ T6321] ffff0000c2c96300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc fc [ 35.264479][ T6321] ffff0000c2c96380: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 35.266582][ T6321] >ffff0000c2c96400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 35.268705][ T6321] ^ [ 35.270327][ T6321] ffff0000c2c96480: fb fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc [ 35.272478][ T6321] ffff0000c2c96500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 35.274657][ T6321] ================================================================== [ 35.288825][ T6321] Disabling lock debugging due to kernel taint