last executing test programs: kernel console output (not intermixed with test programs): Warning: Permanently added '10.128.1.3' (ED25519) to the list of known hosts. 2024/06/13 12:01:39 fuzzer started 2024/06/13 12:01:39 dialing manager at 10.128.0.169:30006 [ 71.608972][ T29] audit: type=1400 audit(1718280099.213:87): avc: denied { node_bind } for pid=5073 comm="syz-fuzzer" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 71.631436][ T29] audit: type=1400 audit(1718280099.233:88): avc: denied { name_bind } for pid=5073 comm="syz-fuzzer" src=6060 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unreserved_port_t tclass=tcp_socket permissive=1 [ 71.943401][ T29] audit: type=1400 audit(1718280099.503:89): avc: denied { mounton } for pid=5081 comm="syz-executor" path="/proc/sys/fs/binfmt_misc" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=dir permissive=1 [ 72.005908][ T5082] cgroup: Unknown subsys name 'net' [ 72.006527][ T29] audit: type=1400 audit(1718280099.523:90): avc: denied { mount } for pid=5081 comm="syz-executor" name="/" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=filesystem permissive=1 [ 72.076587][ T29] audit: type=1400 audit(1718280099.533:91): avc: denied { setattr } for pid=5083 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=733 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 72.124258][ T29] audit: type=1400 audit(1718280099.543:92): avc: denied { mounton } for pid=5082 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=1925 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 72.148116][ T29] audit: type=1400 audit(1718280099.543:93): avc: denied { mount } for pid=5082 comm="syz-executor" name="/" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 72.161391][ T5088] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 72.171049][ T29] audit: type=1400 audit(1718280099.583:94): avc: denied { create } for pid=5085 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 72.199837][ T29] audit: type=1400 audit(1718280099.583:95): avc: denied { write } for pid=5085 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 72.228514][ T29] audit: type=1400 audit(1718280099.603:96): avc: denied { read } for pid=5085 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 72.335029][ T5082] cgroup: Unknown subsys name 'rlimit' 2024/06/13 12:01:41 starting 5 executor processes [ 73.578844][ T5086] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 75.851136][ T5116] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 75.866662][ T5114] Bluetooth: hci3: unexpected cc 0x0c03 length: 249 > 1 [ 75.875805][ T5114] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 75.883776][ T5116] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 75.892811][ T5116] Bluetooth: hci4: unexpected cc 0x0c03 length: 249 > 1 [ 75.896621][ T5114] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 75.902419][ T5116] Bluetooth: hci3: unexpected cc 0x1003 length: 249 > 9 [ 75.914805][ T5116] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 75.915357][ T5114] Bluetooth: hci3: unexpected cc 0x1001 length: 249 > 9 [ 75.922887][ T5116] Bluetooth: hci4: unexpected cc 0x1003 length: 249 > 9 [ 75.935570][ T5118] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 75.938808][ T5116] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 75.943885][ T5114] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 75.950835][ T5116] Bluetooth: hci4: unexpected cc 0x1001 length: 249 > 9 [ 75.966128][ T5116] Bluetooth: hci4: unexpected cc 0x0c23 length: 249 > 4 [ 75.974996][ T5121] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 75.975452][ T5114] Bluetooth: hci3: unexpected cc 0x0c23 length: 249 > 4 [ 75.982530][ T5116] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 75.989936][ T5114] Bluetooth: hci3: unexpected cc 0x0c25 length: 249 > 3 [ 76.004313][ T5114] Bluetooth: hci3: unexpected cc 0x0c38 length: 249 > 2 [ 76.005607][ T5118] Bluetooth: hci4: unexpected cc 0x0c25 length: 249 > 3 [ 76.011710][ T5114] Bluetooth: hci2: unexpected cc 0x0c25 length: 249 > 3 [ 76.018870][ T5118] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 76.033117][ T5116] Bluetooth: hci4: unexpected cc 0x0c38 length: 249 > 2 [ 76.034725][ T5114] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 76.049261][ T5114] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 76.051900][ T5118] Bluetooth: hci1: unexpected cc 0x0c25 length: 249 > 3 [ 76.058847][ T5114] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 76.074188][ T5114] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 76.076793][ T5118] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 76.100741][ T5100] ================================================================== [ 76.108836][ T5100] BUG: KASAN: slab-use-after-free in skb_release_head_state+0x283/0x2b0 [ 76.117210][ T5100] Read of size 8 at addr ffff88805e14a198 by task syz-executor.4/5100 [ 76.125377][ T5100] [ 76.127717][ T5100] CPU: 1 PID: 5100 Comm: syz-executor.4 Not tainted 6.10.0-rc3-syzkaller-00022-gcea2a26553ac #0 [ 76.138144][ T5100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 76.148392][ T5100] Call Trace: [ 76.151685][ T5100] [ 76.154624][ T5100] dump_stack_lvl+0x116/0x1f0 [ 76.159347][ T5100] print_report+0xc3/0x620 [ 76.163795][ T5100] ? __virt_addr_valid+0x5e/0x580 [ 76.168839][ T5100] ? __phys_addr+0xc6/0x150 [ 76.173460][ T5100] kasan_report+0xd9/0x110 [ 76.177909][ T5100] ? skb_release_head_state+0x283/0x2b0 [ 76.183564][ T5100] ? skb_release_head_state+0x283/0x2b0 [ 76.189139][ T5100] skb_release_head_state+0x283/0x2b0 [ 76.194539][ T5100] kfree_skb_reason+0xed/0x210 [ 76.199327][ T5100] __hci_req_sync+0x61d/0x980 [ 76.204492][ T5100] ? __pfx___hci_req_sync+0x10/0x10 [ 76.209714][ T5100] ? __mutex_lock+0x1a6/0x9c0 [ 76.214410][ T5100] ? __pfx_autoremove_wake_function+0x10/0x10 [ 76.220511][ T5100] ? hci_req_sync+0x3f/0xd0 [ 76.225133][ T5100] ? __pfx___might_resched+0x10/0x10 [ 76.230442][ T5100] hci_req_sync+0x97/0xd0 [ 76.234799][ T5100] ? __pfx_hci_scan_req+0x10/0x10 [ 76.239852][ T5100] hci_dev_cmd+0x634/0x960 [ 76.244290][ T5100] ? cap_capable+0x1cf/0x240 [ 76.248911][ T5100] ? __pfx_hci_dev_cmd+0x10/0x10 [ 76.253867][ T5100] ? security_capable+0x98/0xd0 [ 76.258739][ T5100] hci_sock_ioctl+0x4f3/0x880 [ 76.263453][ T5100] ? __pfx_hci_sock_ioctl+0x10/0x10 [ 76.268764][ T5100] sock_do_ioctl+0x116/0x280 [ 76.273376][ T5100] ? __pfx_sock_do_ioctl+0x10/0x10 [ 76.278517][ T5100] ? ioctl_has_perm.constprop.0.isra.0+0x2f9/0x470 [ 76.285047][ T5100] ? __pfx_ioctl_has_perm.constprop.0.isra.0+0x10/0x10 [ 76.292188][ T5100] sock_ioctl+0x22e/0x6c0 [ 76.296650][ T5100] ? __pfx_sock_ioctl+0x10/0x10 [ 76.301528][ T5100] ? selinux_file_ioctl+0x180/0x270 [ 76.306755][ T5100] ? selinux_file_ioctl+0xb4/0x270 [ 76.311896][ T5100] ? __pfx_sock_ioctl+0x10/0x10 [ 76.316776][ T5100] __x64_sys_ioctl+0x193/0x220 [ 76.321741][ T5100] do_syscall_64+0xcd/0x250 [ 76.326310][ T5100] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.332234][ T5100] RIP: 0033:0x7f876f67cc0b [ 76.336671][ T5100] 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 [ 76.356386][ T5100] RSP: 002b:00007ffc3c0df0a0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 76.364822][ T5100] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f876f67cc0b [ 76.372810][ T5100] RDX: 00007ffc3c0df118 RSI: 00000000400448dd RDI: 0000000000000003 [ 76.380798][ T5100] RBP: 00005555930d8430 R08: 0000000000000000 R09: 0000000000000000 [ 76.388786][ T5100] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000 [ 76.396775][ T5100] R13: 0000000000000000 R14: 0000000000000003 R15: 000000000000000c [ 76.404765][ T5100] [ 76.407801][ T5100] [ 76.410126][ T5100] Allocated by task 5118: [ 76.414460][ T5100] kasan_save_stack+0x33/0x60 [ 76.419162][ T5100] kasan_save_track+0x14/0x30 [ 76.423947][ T5100] __kasan_slab_alloc+0x89/0x90 [ 76.428825][ T5100] kmem_cache_alloc_noprof+0x121/0x2f0 [ 76.434298][ T5100] skb_clone+0x190/0x3f0 [ 76.438558][ T5100] hci_cmd_work+0x66a/0x710 [ 76.443074][ T5100] process_one_work+0x9fb/0x1b60 [ 76.448026][ T5100] worker_thread+0x6c8/0xf70 [ 76.452628][ T5100] kthread+0x2c1/0x3a0 [ 76.456714][ T5100] ret_from_fork+0x45/0x80 [ 76.461147][ T5100] ret_from_fork_asm+0x1a/0x30 [ 76.465924][ T5100] [ 76.468248][ T5100] Freed by task 5111: [ 76.472235][ T5100] kasan_save_stack+0x33/0x60 [ 76.476936][ T5100] kasan_save_track+0x14/0x30 [ 76.481635][ T5100] kasan_save_free_info+0x3b/0x60 [ 76.486679][ T5100] poison_slab_object+0xf7/0x160 [ 76.491639][ T5100] __kasan_slab_free+0x32/0x50 [ 76.496429][ T5100] kmem_cache_free+0x12f/0x3a0 [ 76.501215][ T5100] kfree_skbmem+0x10e/0x200 [ 76.505741][ T5100] kfree_skb_reason+0x138/0x210 [ 76.510606][ T5100] hci_req_sync_complete+0x16c/0x270 [ 76.515925][ T5100] hci_event_packet+0x963/0x1170 [ 76.520882][ T5100] hci_rx_work+0x2c4/0x1610 [ 76.525397][ T5100] process_one_work+0x9fb/0x1b60 [ 76.530355][ T5100] worker_thread+0x6c8/0xf70 [ 76.534955][ T5100] kthread+0x2c1/0x3a0 [ 76.539040][ T5100] ret_from_fork+0x45/0x80 [ 76.543481][ T5100] ret_from_fork_asm+0x1a/0x30 [ 76.548271][ T5100] [ 76.550601][ T5100] The buggy address belongs to the object at ffff88805e14a140 [ 76.550601][ T5100] which belongs to the cache skbuff_head_cache of size 240 [ 76.565201][ T5100] The buggy address is located 88 bytes inside of [ 76.565201][ T5100] freed 240-byte region [ffff88805e14a140, ffff88805e14a230) [ 76.578928][ T5100] [ 76.581261][ T5100] The buggy address belongs to the physical page: [ 76.587681][ T5100] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5e14a [ 76.596462][ T5100] flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) [ 76.603665][ T5100] page_type: 0xffffefff(slab) [ 76.608374][ T5100] raw: 00fff00000000000 ffff888019aa6780 dead000000000122 0000000000000000 [ 76.616974][ T5100] raw: 0000000000000000 00000000800c000c 00000001ffffefff 0000000000000000 [ 76.625565][ T5100] page dumped because: kasan: bad access detected [ 76.631988][ T5100] page_owner tracks the page as allocated [ 76.637705][ T5100] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x52cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 5118, tgid 5118 (kworker/u9:7), ts 76100143350, free_ts 23830824699 [ 76.657002][ T5100] post_alloc_hook+0x2d1/0x350 [ 76.661791][ T5100] get_page_from_freelist+0x136a/0x2e50 [ 76.667364][ T5100] __alloc_pages_noprof+0x22b/0x2460 [ 76.672677][ T5100] alloc_slab_page+0x56/0x110 [ 76.677373][ T5100] new_slab+0x84/0x260 [ 76.681468][ T5100] ___slab_alloc+0xdac/0x1870 [ 76.686172][ T5100] __slab_alloc.constprop.0+0x56/0xb0 [ 76.691571][ T5100] kmem_cache_alloc_noprof+0x2a7/0x2f0 [ 76.697045][ T5100] skb_clone+0x190/0x3f0 [ 76.701302][ T5100] hci_cmd_work+0x1c3/0x710 [ 76.705837][ T5100] process_one_work+0x9fb/0x1b60 [ 76.710969][ T5100] worker_thread+0x6c8/0xf70 [ 76.715579][ T5100] kthread+0x2c1/0x3a0 [ 76.719667][ T5100] ret_from_fork+0x45/0x80 [ 76.720180][ T29] kauditd_printk_skb: 20 callbacks suppressed [ 76.720195][ T29] audit: type=1400 audit(1718280104.213:117): avc: denied { module_request } for pid=5102 comm="syz-executor.1" kmod="rtnl-link-nicvf" scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:kernel_t tclass=system permissive=1 [ 76.724085][ T5100] ret_from_fork_asm+0x1a/0x30 [ 76.724119][ T5100] page last free pid 1 tgid 1 stack trace: [ 76.763051][ T5100] free_unref_page+0x64a/0xe40 [ 76.767836][ T5100] free_contig_range+0xb6/0x1a0 [ 76.772718][ T5100] destroy_args+0xa4e/0xe20 [ 76.777247][ T5100] debug_vm_pgtable+0x16db/0x3220 [ 76.782294][ T5100] do_one_initcall+0x128/0x700 [ 76.787081][ T5100] kernel_init_freeable+0x69d/0xca0 [ 76.792302][ T5100] kernel_init+0x1c/0x2b0 [ 76.796649][ T5100] ret_from_fork+0x45/0x80 [ 76.801087][ T5100] ret_from_fork_asm+0x1a/0x30 [ 76.805880][ T5100] [ 76.808203][ T5100] Memory state around the buggy address: [ 76.813840][ T5100] ffff88805e14a080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc fc [ 76.821912][ T5100] ffff88805e14a100: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 76.829974][ T5100] >ffff88805e14a180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 76.838037][ T5100] ^ [ 76.842896][ T5100] ffff88805e14a200: fb fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc [ 76.851229][ T5100] ffff88805e14a280: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 76.859303][ T5100] ================================================================== [ 76.869349][ T5100] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 76.876572][ T5100] CPU: 0 PID: 5100 Comm: syz-executor.4 Not tainted 6.10.0-rc3-syzkaller-00022-gcea2a26553ac #0 [ 76.887003][ T5100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 76.897069][ T5100] Call Trace: [ 76.900355][ T5100] 2024/06/13 12:01:44 SYZFATAL: failed to recv *flatrpc.HostMessageRaw: EOF [ 76.903289][ T5100] dump_stack_lvl+0x3d/0x1f0 [ 76.907918][ T5100] panic+0x6f5/0x7a0 [ 76.911848][ T5100] ? __pfx_panic+0x10/0x10 [ 76.916382][ T5100] ? preempt_schedule_thunk+0x1a/0x30 [ 76.921782][ T5100] ? preempt_schedule_common+0x44/0xc0 [ 76.927280][ T5100] ? check_panic_on_warn+0x1f/0xb0 [ 76.932431][ T5100] check_panic_on_warn+0xab/0xb0 [ 76.937399][ T5100] end_report+0x117/0x180 [ 76.941740][ T5100] kasan_report+0xe9/0x110 [ 76.946169][ T5100] ? skb_release_head_state+0x283/0x2b0 [ 76.951831][ T5100] ? skb_release_head_state+0x283/0x2b0 [ 76.957568][ T5100] skb_release_head_state+0x283/0x2b0 [ 76.962953][ T5100] kfree_skb_reason+0xed/0x210 [ 76.967725][ T5100] __hci_req_sync+0x61d/0x980 [ 76.972417][ T5100] ? __pfx___hci_req_sync+0x10/0x10 [ 76.977628][ T5100] ? __mutex_lock+0x1a6/0x9c0 [ 76.982314][ T5100] ? __pfx_autoremove_wake_function+0x10/0x10 [ 76.988399][ T5100] ? hci_req_sync+0x3f/0xd0 [ 76.992912][ T5100] ? __pfx___might_resched+0x10/0x10 [ 76.998201][ T5100] hci_req_sync+0x97/0xd0 [ 77.002544][ T5100] ? __pfx_hci_scan_req+0x10/0x10 [ 77.007582][ T5100] hci_dev_cmd+0x634/0x960 [ 77.011998][ T5100] ? cap_capable+0x1cf/0x240 [ 77.016588][ T5100] ? __pfx_hci_dev_cmd+0x10/0x10 [ 77.021526][ T5100] ? security_capable+0x98/0xd0 [ 77.026377][ T5100] hci_sock_ioctl+0x4f3/0x880 [ 77.031067][ T5100] ? __pfx_hci_sock_ioctl+0x10/0x10 [ 77.036274][ T5100] sock_do_ioctl+0x116/0x280 [ 77.040874][ T5100] ? __pfx_sock_do_ioctl+0x10/0x10 [ 77.045992][ T5100] ? ioctl_has_perm.constprop.0.isra.0+0x2f9/0x470 [ 77.052507][ T5100] ? __pfx_ioctl_has_perm.constprop.0.isra.0+0x10/0x10 [ 77.059366][ T5100] sock_ioctl+0x22e/0x6c0 [ 77.063700][ T5100] ? __pfx_sock_ioctl+0x10/0x10 [ 77.068557][ T5100] ? selinux_file_ioctl+0x180/0x270 [ 77.073761][ T5100] ? selinux_file_ioctl+0xb4/0x270 [ 77.078878][ T5100] ? __pfx_sock_ioctl+0x10/0x10 [ 77.083853][ T5100] __x64_sys_ioctl+0x193/0x220 [ 77.088622][ T5100] do_syscall_64+0xcd/0x250 [ 77.093127][ T5100] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.099030][ T5100] RIP: 0033:0x7f876f67cc0b [ 77.103440][ T5100] 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 [ 77.123132][ T5100] RSP: 002b:00007ffc3c0df0a0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 77.131636][ T5100] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f876f67cc0b [ 77.139693][ T5100] RDX: 00007ffc3c0df118 RSI: 00000000400448dd RDI: 0000000000000003 [ 77.147660][ T5100] RBP: 00005555930d8430 R08: 0000000000000000 R09: 0000000000000000 [ 77.155801][ T5100] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000 [ 77.163798][ T5100] R13: 0000000000000000 R14: 0000000000000003 R15: 000000000000000c [ 77.171769][ T5100] [ 77.174994][ T5100] Kernel Offset: disabled [ 77.179306][ T5100] Rebooting in 86400 seconds..