last executing test programs: kernel console output (not intermixed with test programs): Warning: Permanently added '10.128.0.189' (ED25519) to the list of known hosts. syzkaller login: [ 49.534272][ T3535] cgroup: Unknown subsys name 'net' [ 49.637277][ T3535] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 50.931187][ T3535] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 51.433472][ T3549] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 51.444291][ T3556] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 51.444443][ T3549] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 51.456613][ T3559] Bluetooth: hci4: unexpected cc 0x0c03 length: 249 > 1 [ 51.459976][ T3549] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 51.466756][ T3559] Bluetooth: hci3: unexpected cc 0x0c03 length: 249 > 1 [ 51.475012][ T3549] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 51.481824][ T3559] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 51.488412][ T3549] Bluetooth: hci4: unexpected cc 0x1003 length: 249 > 9 [ 51.495307][ T3559] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 51.508714][ T3559] Bluetooth: hci3: unexpected cc 0x1003 length: 249 > 9 [ 51.509866][ T3549] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 51.516662][ T3559] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 51.530612][ T3561] Bluetooth: hci4: unexpected cc 0x1001 length: 249 > 9 [ 51.531771][ T3559] Bluetooth: hci3: unexpected cc 0x1001 length: 249 > 9 [ 51.538500][ T3561] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 51.545608][ T3559] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 51.552666][ T3561] Bluetooth: hci4: unexpected cc 0x0c23 length: 249 > 4 [ 51.559842][ T3559] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 51.566101][ T3561] Bluetooth: hci3: unexpected cc 0x0c23 length: 249 > 4 [ 51.573852][ T3559] Bluetooth: hci2: unexpected cc 0x0c25 length: 249 > 3 [ 51.580302][ T3561] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 51.588174][ T3559] Bluetooth: hci1: unexpected cc 0x0c25 length: 249 > 3 [ 51.593914][ T3561] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 51.601969][ T3559] Bluetooth: hci3: unexpected cc 0x0c25 length: 249 > 3 [ 51.607722][ T3561] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 51.614832][ T3559] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 51.622272][ T3561] Bluetooth: hci4: unexpected cc 0x0c25 length: 249 > 3 [ 51.629551][ T3559] Bluetooth: hci3: unexpected cc 0x0c38 length: 249 > 2 [ 51.636420][ T3561] Bluetooth: hci4: unexpected cc 0x0c38 length: 249 > 2 [ 51.653405][ T3545] ================================================================== [ 51.661491][ T3545] BUG: KASAN: use-after-free in kfree_skb_reason+0x3d/0x390 [ 51.668798][ T3545] Read of size 4 at addr ffff888062396c24 by task syz-executor/3545 [ 51.676775][ T3545] [ 51.679119][ T3545] CPU: 1 PID: 3545 Comm: syz-executor Not tainted 6.1.96-syzkaller #0 [ 51.687256][ T3545] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 51.697308][ T3545] Call Trace: [ 51.700586][ T3545] [ 51.703513][ T3545] dump_stack_lvl+0x1e3/0x2cb [ 51.708208][ T3545] ? nf_tcp_handle_invalid+0x642/0x642 [ 51.713663][ T3545] ? panic+0x764/0x764 [ 51.717721][ T3545] ? _printk+0xd1/0x111 [ 51.721865][ T3545] ? __virt_addr_valid+0x17f/0x520 [ 51.727061][ T3545] ? __virt_addr_valid+0x17f/0x520 [ 51.732175][ T3545] print_report+0x15f/0x4f0 [ 51.736674][ T3545] ? __virt_addr_valid+0x17f/0x520 [ 51.741774][ T3545] ? __virt_addr_valid+0x17f/0x520 [ 51.746891][ T3545] ? __virt_addr_valid+0x44a/0x520 [ 51.752018][ T3545] ? __phys_addr+0xb6/0x170 [ 51.756542][ T3545] ? kfree_skb_reason+0x3d/0x390 [ 51.761492][ T3545] kasan_report+0x136/0x160 [ 51.765997][ T3545] ? kfree_skb_reason+0x3d/0x390 [ 51.770931][ T3545] kasan_check_range+0x27f/0x290 [ 51.775858][ T3545] kfree_skb_reason+0x3d/0x390 [ 51.780616][ T3545] __hci_req_sync+0x626/0x940 [ 51.785288][ T3545] ? trace_contention_end+0x61/0x170 [ 51.790564][ T3545] ? hci_req_sync_complete+0x280/0x280 [ 51.796012][ T3545] ? mutex_lock_nested+0x10/0x10 [ 51.800939][ T3545] ? hci_encrypt_req+0x170/0x170 [ 51.805878][ T3545] hci_req_sync+0xa5/0xc0 [ 51.810218][ T3545] hci_dev_cmd+0x2fc/0xa30 [ 51.814641][ T3545] ? security_capable+0x86/0xb0 [ 51.819492][ T3545] ? hci_dev_reset_stat+0x1a0/0x1a0 [ 51.824687][ T3545] ? hci_sock_ioctl+0x426/0x850 [ 51.829529][ T3545] sock_do_ioctl+0x152/0x450 [ 51.834110][ T3545] ? sock_show_fdinfo+0xb0/0xb0 [ 51.838948][ T3545] ? __fget_files+0x28/0x4a0 [ 51.843527][ T3545] sock_ioctl+0x47f/0x770 [ 51.847844][ T3545] ? sock_poll+0x410/0x410 [ 51.852255][ T3545] ? __fget_files+0x28/0x4a0 [ 51.856839][ T3545] ? __fget_files+0x435/0x4a0 [ 51.861501][ T3545] ? __fget_files+0x28/0x4a0 [ 51.866075][ T3545] ? bpf_lsm_file_ioctl+0x5/0x10 [ 51.870997][ T3545] ? security_file_ioctl+0x7d/0xa0 [ 51.876093][ T3545] ? sock_poll+0x410/0x410 [ 51.880495][ T3545] __se_sys_ioctl+0xf1/0x160 [ 51.885079][ T3545] do_syscall_64+0x3b/0xb0 [ 51.889491][ T3545] ? clear_bhb_loop+0x45/0xa0 [ 51.894159][ T3545] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 51.900045][ T3545] RIP: 0033:0x7f545e37579b [ 51.904457][ T3545] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 00 00 [ 51.924050][ T3545] RSP: 002b:00007ffff4df6080 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 51.932452][ T3545] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f545e37579b [ 51.940413][ T3545] RDX: 00007ffff4df60f8 RSI: 00000000400448dd RDI: 0000000000000003 [ 51.948377][ T3545] RBP: 00005555565ba4a8 R08: 0000000000000000 R09: 0000000000000000 [ 51.956334][ T3545] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000001 [ 51.964298][ T3545] R13: 0000000000000001 R14: 0000000000000009 R15: 0000000000000009 [ 51.972264][ T3545] [ 51.975282][ T3545] [ 51.977588][ T3545] Allocated by task 3559: [ 51.981893][ T3545] kasan_set_track+0x4b/0x70 [ 51.986478][ T3545] __kasan_slab_alloc+0x65/0x70 [ 51.991325][ T3545] slab_post_alloc_hook+0x52/0x3a0 [ 51.996462][ T3545] kmem_cache_alloc+0x10c/0x2d0 [ 52.001300][ T3545] skb_clone+0x1e5/0x360 [ 52.005706][ T3545] hci_cmd_work+0x296/0x660 [ 52.010194][ T3545] process_one_work+0x8a9/0x11d0 [ 52.015120][ T3545] worker_thread+0xa47/0x1200 [ 52.019787][ T3545] kthread+0x28d/0x320 [ 52.023840][ T3545] ret_from_fork+0x1f/0x30 [ 52.028257][ T3545] [ 52.030570][ T3545] Freed by task 3559: [ 52.034541][ T3545] kasan_set_track+0x4b/0x70 [ 52.039121][ T3545] kasan_save_free_info+0x27/0x40 [ 52.044131][ T3545] ____kasan_slab_free+0xd6/0x120 [ 52.049147][ T3545] kmem_cache_free+0x292/0x510 [ 52.053898][ T3545] hci_req_sync_complete+0xee/0x280 [ 52.059084][ T3545] hci_event_packet+0xc49/0x1510 [ 52.064011][ T3545] hci_rx_work+0x3cd/0xce0 [ 52.068422][ T3545] process_one_work+0x8a9/0x11d0 [ 52.073349][ T3545] worker_thread+0xa47/0x1200 [ 52.078015][ T3545] kthread+0x28d/0x320 [ 52.082157][ T3545] ret_from_fork+0x1f/0x30 [ 52.086651][ T3545] [ 52.088961][ T3545] The buggy address belongs to the object at ffff888062396b40 [ 52.088961][ T3545] which belongs to the cache skbuff_head_cache of size 240 [ 52.103518][ T3545] The buggy address is located 228 bytes inside of [ 52.103518][ T3545] 240-byte region [ffff888062396b40, ffff888062396c30) [ 52.116773][ T3545] [ 52.119081][ T3545] The buggy address belongs to the physical page: [ 52.125478][ T3545] page:ffffea000188e580 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x62396 [ 52.135611][ T3545] flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) [ 52.143153][ T3545] raw: 00fff00000000200 0000000000000000 dead000000000122 ffff8881401dd280 [ 52.151721][ T3545] raw: 0000000000000000 00000000000c000c 00000001ffffffff 0000000000000000 [ 52.160282][ T3545] page dumped because: kasan: bad access detected [ 52.166700][ T3545] page_owner tracks the page as allocated [ 52.172395][ T3545] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 3559, tgid 3559 (kworker/u5:6), ts 51652391131, free_ts 11627739129 [ 52.190703][ T3545] post_alloc_hook+0x18d/0x1b0 [ 52.195455][ T3545] get_page_from_freelist+0x31a1/0x3320 [ 52.200993][ T3545] __alloc_pages+0x28d/0x770 [ 52.205570][ T3545] alloc_slab_page+0x6a/0x150 [ 52.210235][ T3545] new_slab+0x84/0x2d0 [ 52.214295][ T3545] ___slab_alloc+0xc20/0x1270 [ 52.218958][ T3545] kmem_cache_alloc+0x1a5/0x2d0 [ 52.223797][ T3545] skb_clone+0x1e5/0x360 [ 52.228458][ T3545] hci_event_packet+0x221/0x1510 [ 52.233382][ T3545] hci_rx_work+0x3cd/0xce0 [ 52.237780][ T3545] process_one_work+0x8a9/0x11d0 [ 52.242713][ T3545] worker_thread+0xa47/0x1200 [ 52.247375][ T3545] kthread+0x28d/0x320 [ 52.251427][ T3545] ret_from_fork+0x1f/0x30 [ 52.255832][ T3545] page last free stack trace: [ 52.260488][ T3545] free_unref_page_prepare+0xf63/0x1120 [ 52.266018][ T3545] free_unref_page+0x33/0x3e0 [ 52.270679][ T3545] free_contig_range+0x9a/0x150 [ 52.275516][ T3545] destroy_args+0xfe/0x997 [ 52.279922][ T3545] debug_vm_pgtable+0x416/0x46b [ 52.284759][ T3545] do_one_initcall+0x265/0x8f0 [ 52.289632][ T3545] do_initcall_level+0x157/0x207 [ 52.294570][ T3545] do_initcalls+0x49/0x86 [ 52.298889][ T3545] kernel_init_freeable+0x45c/0x60f [ 52.304076][ T3545] kernel_init+0x19/0x290 [ 52.308391][ T3545] ret_from_fork+0x1f/0x30 [ 52.312799][ T3545] [ 52.315104][ T3545] Memory state around the buggy address: [ 52.320716][ T3545] ffff888062396b00: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 52.328767][ T3545] ffff888062396b80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 52.336832][ T3545] >ffff888062396c00: fb fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc [ 52.344874][ T3545] ^ [ 52.349984][ T3545] ffff888062396c80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 52.358037][ T3545] ffff888062396d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc fc [ 52.366084][ T3545] ================================================================== [ 52.374604][ T3545] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 52.381812][ T3545] CPU: 1 PID: 3545 Comm: syz-executor Not tainted 6.1.96-syzkaller #0 [ 52.389970][ T3545] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 52.400034][ T3545] Call Trace: [ 52.403325][ T3545] [ 52.406271][ T3545] dump_stack_lvl+0x1e3/0x2cb [ 52.410969][ T3545] ? nf_tcp_handle_invalid+0x642/0x642 [ 52.416456][ T3545] ? panic+0x764/0x764 [ 52.420574][ T3545] ? preempt_schedule_common+0xa6/0xd0 [ 52.426055][ T3545] ? vscnprintf+0x59/0x80 [ 52.430413][ T3545] panic+0x318/0x764 [ 52.434323][ T3545] ? check_panic_on_warn+0x1d/0xa0 [ 52.439451][ T3545] ? memcpy_page_flushcache+0xfc/0xfc [ 52.444844][ T3545] ? _raw_spin_unlock_irqrestore+0x128/0x130 [ 52.450846][ T3545] ? _raw_spin_unlock+0x40/0x40 [ 52.455716][ T3545] ? print_report+0x4a3/0x4f0 [ 52.460554][ T3545] check_panic_on_warn+0x7e/0xa0 [ 52.465514][ T3545] ? kfree_skb_reason+0x3d/0x390 [ 52.470475][ T3545] end_report+0x66/0x110 [ 52.474732][ T3545] kasan_report+0x143/0x160 [ 52.479270][ T3545] ? kfree_skb_reason+0x3d/0x390 [ 52.484317][ T3545] kasan_check_range+0x27f/0x290 [ 52.489280][ T3545] kfree_skb_reason+0x3d/0x390 [ 52.494091][ T3545] __hci_req_sync+0x626/0x940 [ 52.498862][ T3545] ? trace_contention_end+0x61/0x170 [ 52.504869][ T3545] ? hci_req_sync_complete+0x280/0x280 [ 52.510356][ T3545] ? mutex_lock_nested+0x10/0x10 [ 52.515319][ T3545] ? hci_encrypt_req+0x170/0x170 [ 52.520280][ T3545] hci_req_sync+0xa5/0xc0 [ 52.524629][ T3545] hci_dev_cmd+0x2fc/0xa30 [ 52.529063][ T3545] ? security_capable+0x86/0xb0 [ 52.533938][ T3545] ? hci_dev_reset_stat+0x1a0/0x1a0 [ 52.539158][ T3545] ? hci_sock_ioctl+0x426/0x850 [ 52.544029][ T3545] sock_do_ioctl+0x152/0x450 [ 52.548638][ T3545] ? sock_show_fdinfo+0xb0/0xb0 [ 52.553507][ T3545] ? __fget_files+0x28/0x4a0 [ 52.558114][ T3545] sock_ioctl+0x47f/0x770 [ 52.562462][ T3545] ? sock_poll+0x410/0x410 [ 52.566894][ T3545] ? __fget_files+0x28/0x4a0 [ 52.571497][ T3545] ? __fget_files+0x435/0x4a0 [ 52.576184][ T3545] ? __fget_files+0x28/0x4a0 [ 52.580797][ T3545] ? bpf_lsm_file_ioctl+0x5/0x10 [ 52.585758][ T3545] ? security_file_ioctl+0x7d/0xa0 [ 52.590884][ T3545] ? sock_poll+0x410/0x410 [ 52.595381][ T3545] __se_sys_ioctl+0xf1/0x160 [ 52.600022][ T3545] do_syscall_64+0x3b/0xb0 [ 52.604462][ T3545] ? clear_bhb_loop+0x45/0xa0 [ 52.609167][ T3545] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 52.615079][ T3545] RIP: 0033:0x7f545e37579b [ 52.619508][ T3545] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 00 00 [ 52.639301][ T3545] RSP: 002b:00007ffff4df6080 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 52.647727][ T3545] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f545e37579b [ 52.655719][ T3545] RDX: 00007ffff4df60f8 RSI: 00000000400448dd RDI: 0000000000000003 [ 52.663794][ T3545] RBP: 00005555565ba4a8 R08: 0000000000000000 R09: 0000000000000000 [ 52.671783][ T3545] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000001 [ 52.679941][ T3545] R13: 0000000000000001 R14: 0000000000000009 R15: 0000000000000009 [ 52.687933][ T3545] [ 52.691198][ T3545] Kernel Offset: disabled [ 52.695510][ T3545] Rebooting in 86400 seconds..