Warning: Permanently added '10.128.0.250' (ECDSA) to the list of known hosts. executing program [ 62.731048][ T8484] ================================================================== [ 62.739132][ T8484] BUG: KASAN: slab-out-of-bounds in __lock_acquire+0x3ba2/0x5490 [ 62.746826][ T8484] Read of size 8 at addr ffff888216afaa40 by task syz-executor282/8484 [ 62.755028][ T8484] [ 62.757336][ T8484] CPU: 0 PID: 8484 Comm: syz-executor282 Not tainted 5.2.0-rc1+ #1 [ 62.765193][ T8484] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.775221][ T8484] Call Trace: [ 62.778491][ T8484] dump_stack+0x172/0x1f0 [ 62.782903][ T8484] ? __lock_acquire+0x3ba2/0x5490 [ 62.787907][ T8484] print_address_description.cold+0x7c/0x20d [ 62.793860][ T8484] ? __lock_acquire+0x3ba2/0x5490 [ 62.798858][ T8484] ? __lock_acquire+0x3ba2/0x5490 [ 62.803853][ T8484] __kasan_report.cold+0x1b/0x40 [ 62.808762][ T8484] ? __lock_acquire+0x3ba2/0x5490 [ 62.813763][ T8484] kasan_report+0x12/0x20 [ 62.818068][ T8484] __asan_report_load8_noabort+0x14/0x20 [ 62.823673][ T8484] __lock_acquire+0x3ba2/0x5490 [ 62.828498][ T8484] ? sock_diag_rcv+0x2b/0x40 [ 62.833062][ T8484] ? netlink_unicast+0x531/0x710 [ 62.838019][ T8484] ? netlink_sendmsg+0x8ae/0xd70 [ 62.842932][ T8484] ? sock_sendmsg+0xd7/0x130 [ 62.847491][ T8484] ? ___sys_sendmsg+0x803/0x920 [ 62.852360][ T8484] ? __sys_sendmsg+0x105/0x1d0 [ 62.857097][ T8484] ? __x64_sys_sendmsg+0x78/0xb0 [ 62.862017][ T8484] ? do_syscall_64+0xfd/0x680 [ 62.866669][ T8484] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 62.872712][ T8484] ? mark_held_locks+0xf0/0xf0 [ 62.877488][ T8484] ? mark_held_locks+0xf0/0xf0 [ 62.882382][ T8484] ? fs_reclaim_acquire.part.0+0x30/0x30 [ 62.888016][ T8484] ? find_held_lock+0x35/0x130 [ 62.892761][ T8484] ? fs_reclaim_acquire.part.0+0x30/0x30 [ 62.898371][ T8484] lock_acquire+0x16f/0x3f0 [ 62.902872][ T8484] ? rhashtable_walk_enter+0xf9/0x390 [ 62.908220][ T8484] _raw_spin_lock+0x2f/0x40 [ 62.912705][ T8484] ? rhashtable_walk_enter+0xf9/0x390 [ 62.918053][ T8484] rhashtable_walk_enter+0xf9/0x390 [ 62.923223][ T8484] __tipc_dump_start+0x1fa/0x3c0 [ 62.928224][ T8484] tipc_dump_start+0x70/0x90 [ 62.932793][ T8484] __netlink_dump_start+0x4f8/0x7d0 [ 62.937963][ T8484] ? __tipc_dump_start+0x3c0/0x3c0 [ 62.943067][ T8484] tipc_sock_diag_handler_dump+0x1d9/0x270 [ 62.948854][ T8484] ? __tipc_diag_gen_cookie+0x90/0x90 [ 62.954198][ T8484] ? sock_diag_rcv+0x1c/0x40 [ 62.958792][ T8484] ? __tipc_dump_start+0x3c0/0x3c0 [ 62.963879][ T8484] ? tipc_unregister_sysctl+0x20/0x20 [ 62.969222][ T8484] ? tipc_ioctl+0x2e0/0x2e0 [ 62.973707][ T8484] sock_diag_rcv_msg+0x319/0x410 [ 62.978623][ T8484] netlink_rcv_skb+0x177/0x450 [ 62.983358][ T8484] ? sock_diag_bind+0x80/0x80 [ 62.988018][ T8484] ? netlink_ack+0xb50/0xb50 [ 62.992586][ T8484] ? kasan_check_read+0x11/0x20 [ 62.997412][ T8484] ? netlink_deliver_tap+0x254/0xbf0 [ 63.002671][ T8484] sock_diag_rcv+0x2b/0x40 [ 63.007069][ T8484] netlink_unicast+0x531/0x710 [ 63.011808][ T8484] ? netlink_attachskb+0x770/0x770 [ 63.016891][ T8484] ? _copy_from_iter_full+0x25d/0x8c0 [ 63.022271][ T8484] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 63.027965][ T8484] ? __check_object_size+0x3d/0x42f [ 63.033141][ T8484] netlink_sendmsg+0x8ae/0xd70 [ 63.037881][ T8484] ? netlink_unicast+0x710/0x710 [ 63.042810][ T8484] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 63.048396][ T8484] ? apparmor_socket_sendmsg+0x2a/0x30 [ 63.053833][ T8484] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 63.060048][ T8484] ? security_socket_sendmsg+0x8d/0xc0 [ 63.065482][ T8484] ? netlink_unicast+0x710/0x710 [ 63.070393][ T8484] sock_sendmsg+0xd7/0x130 [ 63.074784][ T8484] ___sys_sendmsg+0x803/0x920 [ 63.079436][ T8484] ? copy_msghdr_from_user+0x430/0x430 [ 63.084871][ T8484] ? prep_transhuge_page+0xa0/0xa0 [ 63.089959][ T8484] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 63.096172][ T8484] ? __handle_mm_fault+0x7cb/0x3eb0 [ 63.101364][ T8484] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 63.107577][ T8484] ? __fget_light+0x1a9/0x230 [ 63.112230][ T8484] ? __fdget+0x1b/0x20 [ 63.116275][ T8484] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 63.122493][ T8484] __sys_sendmsg+0x105/0x1d0 [ 63.127058][ T8484] ? __ia32_sys_shutdown+0x80/0x80 [ 63.132169][ T8484] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 63.137601][ T8484] ? do_syscall_64+0x26/0x680 [ 63.142252][ T8484] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 63.148298][ T8484] ? do_syscall_64+0x26/0x680 [ 63.152962][ T8484] __x64_sys_sendmsg+0x78/0xb0 [ 63.157705][ T8484] do_syscall_64+0xfd/0x680 [ 63.162193][ T8484] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 63.168061][ T8484] RIP: 0033:0x4401f9 [ 63.171929][ T8484] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 63.191592][ T8484] RSP: 002b:00007fff6dd45778 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 63.199978][ T8484] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004401f9 [ 63.207922][ T8484] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 63.215867][ T8484] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 63.223813][ T8484] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401a80 [ 63.231758][ T8484] R13: 0000000000401b10 R14: 0000000000000000 R15: 0000000000000000 [ 63.239709][ T8484] [ 63.242010][ T8484] Allocated by task 1: [ 63.246057][ T8484] save_stack+0x23/0x90 [ 63.250187][ T8484] __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 63.255796][ T8484] kasan_slab_alloc+0xf/0x20 [ 63.260358][ T8484] kmem_cache_alloc+0x11a/0x6f0 [ 63.265181][ T8484] __kernfs_new_node+0xf0/0x6c0 [ 63.270027][ T8484] kernfs_new_node+0x96/0x120 [ 63.274784][ T8484] __kernfs_create_file+0x51/0x340 [ 63.279873][ T8484] sysfs_add_file_mode_ns+0x222/0x560 [ 63.285233][ T8484] internal_create_group+0x359/0xc40 [ 63.290489][ T8484] sysfs_create_groups+0x9b/0x141 [ 63.295484][ T8484] device_add+0x80f/0x17a0 [ 63.299876][ T8484] netdev_register_kobject+0x183/0x3b0 [ 63.305305][ T8484] register_netdevice+0x875/0xff0 [ 63.310310][ T8484] register_netdev+0x30/0x50 [ 63.314869][ T8484] nr_proto_init+0x274/0x65f [ 63.319433][ T8484] do_one_initcall+0x107/0x7ba [ 63.324169][ T8484] kernel_init_freeable+0x4d4/0x5c3 [ 63.329337][ T8484] kernel_init+0x12/0x1c5 [ 63.333638][ T8484] ret_from_fork+0x24/0x30 [ 63.338023][ T8484] [ 63.340321][ T8484] Freed by task 0: [ 63.344007][ T8484] (stack is not available) [ 63.348387][ T8484] [ 63.350689][ T8484] The buggy address belongs to the object at ffff888216afa9a0 [ 63.350689][ T8484] which belongs to the cache kernfs_node_cache of size 160 [ 63.365234][ T8484] The buggy address is located 0 bytes to the right of [ 63.365234][ T8484] 160-byte region [ffff888216afa9a0, ffff888216afaa40) [ 63.378820][ T8484] The buggy address belongs to the page: [ 63.384424][ T8484] page:ffffea00085abe80 refcount:1 mapcount:0 mapping:ffff88821bc48500 index:0xffff888216afafee [ 63.394802][ T8484] flags: 0x6fffc0000000200(slab) [ 63.399716][ T8484] raw: 06fffc0000000200 ffffea00085abdc8 ffffea00085abec8 ffff88821bc48500 [ 63.408297][ T8484] raw: ffff888216afafee ffff888216afa000 0000000100000012 0000000000000000 [ 63.416851][ T8484] page dumped because: kasan: bad access detected [ 63.423235][ T8484] [ 63.425533][ T8484] Memory state around the buggy address: [ 63.431153][ T8484] ffff888216afa900: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [ 63.439452][ T8484] ffff888216afa980: fc fc fc fc 00 00 00 00 00 00 00 00 00 00 00 00 [ 63.447487][ T8484] >ffff888216afaa00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 63.455516][ T8484] ^ [ 63.461641][ T8484] ffff888216afaa80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 63.469682][ T8484] ffff888216afab00: 00 00 00 00 fc fc fc fc fc fc fc fc 00 00 00 00 [ 63.477733][ T8484] ================================================================== [ 63.485771][ T8484] Disabling lock debugging due to kernel taint [ 63.491895][ T8484] Kernel panic - not syncing: panic_on_warn set ... [ 63.498457][ T8484] CPU: 0 PID: 8484 Comm: syz-executor282 Tainted: G B 5.2.0-rc1+ #1 [ 63.507706][ T8484] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.517744][ T8484] Call Trace: [ 63.521039][ T8484] dump_stack+0x172/0x1f0 [ 63.525351][ T8484] panic+0x2cb/0x744 [ 63.529224][ T8484] ? __warn_printk+0xf3/0xf3 [ 63.533813][ T8484] ? lock_downgrade+0x880/0x880 [ 63.538641][ T8484] ? __lock_acquire+0x3ba2/0x5490 [ 63.543660][ T8484] ? trace_hardirqs_off+0x62/0x220 [ 63.548765][ T8484] ? trace_hardirqs_off+0x59/0x220 [ 63.553880][ T8484] ? __lock_acquire+0x3ba2/0x5490 [ 63.558901][ T8484] end_report+0x47/0x4f [ 63.563037][ T8484] ? __lock_acquire+0x3ba2/0x5490 [ 63.568037][ T8484] __kasan_report.cold+0xe/0x40 [ 63.572859][ T8484] ? __lock_acquire+0x3ba2/0x5490 [ 63.577861][ T8484] kasan_report+0x12/0x20 [ 63.582165][ T8484] __asan_report_load8_noabort+0x14/0x20 [ 63.589595][ T8484] __lock_acquire+0x3ba2/0x5490 [ 63.594419][ T8484] ? sock_diag_rcv+0x2b/0x40 [ 63.598985][ T8484] ? netlink_unicast+0x531/0x710 [ 63.603910][ T8484] ? netlink_sendmsg+0x8ae/0xd70 [ 63.608828][ T8484] ? sock_sendmsg+0xd7/0x130 [ 63.613390][ T8484] ? ___sys_sendmsg+0x803/0x920 [ 63.618218][ T8484] ? __sys_sendmsg+0x105/0x1d0 [ 63.622971][ T8484] ? __x64_sys_sendmsg+0x78/0xb0 [ 63.627887][ T8484] ? do_syscall_64+0xfd/0x680 [ 63.632542][ T8484] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 63.638596][ T8484] ? mark_held_locks+0xf0/0xf0 [ 63.643336][ T8484] ? mark_held_locks+0xf0/0xf0 [ 63.648073][ T8484] ? fs_reclaim_acquire.part.0+0x30/0x30 [ 63.653688][ T8484] ? find_held_lock+0x35/0x130 [ 63.658442][ T8484] ? fs_reclaim_acquire.part.0+0x30/0x30 [ 63.664054][ T8484] lock_acquire+0x16f/0x3f0 [ 63.668539][ T8484] ? rhashtable_walk_enter+0xf9/0x390 [ 63.673891][ T8484] _raw_spin_lock+0x2f/0x40 [ 63.678371][ T8484] ? rhashtable_walk_enter+0xf9/0x390 [ 63.683717][ T8484] rhashtable_walk_enter+0xf9/0x390 [ 63.688894][ T8484] __tipc_dump_start+0x1fa/0x3c0 [ 63.693818][ T8484] tipc_dump_start+0x70/0x90 [ 63.698390][ T8484] __netlink_dump_start+0x4f8/0x7d0 [ 63.704008][ T8484] ? __tipc_dump_start+0x3c0/0x3c0 [ 63.709224][ T8484] tipc_sock_diag_handler_dump+0x1d9/0x270 [ 63.715007][ T8484] ? __tipc_diag_gen_cookie+0x90/0x90 [ 63.720353][ T8484] ? sock_diag_rcv+0x1c/0x40 [ 63.724919][ T8484] ? __tipc_dump_start+0x3c0/0x3c0 [ 63.730004][ T8484] ? tipc_unregister_sysctl+0x20/0x20 [ 63.735352][ T8484] ? tipc_ioctl+0x2e0/0x2e0 [ 63.739843][ T8484] sock_diag_rcv_msg+0x319/0x410 [ 63.744757][ T8484] netlink_rcv_skb+0x177/0x450 [ 63.751939][ T8484] ? sock_diag_bind+0x80/0x80 [ 63.756617][ T8484] ? netlink_ack+0xb50/0xb50 [ 63.761271][ T8484] ? kasan_check_read+0x11/0x20 [ 63.766099][ T8484] ? netlink_deliver_tap+0x254/0xbf0 [ 63.771376][ T8484] sock_diag_rcv+0x2b/0x40 [ 63.775781][ T8484] netlink_unicast+0x531/0x710 [ 63.780531][ T8484] ? netlink_attachskb+0x770/0x770 [ 63.785620][ T8484] ? _copy_from_iter_full+0x25d/0x8c0 [ 63.790970][ T8484] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 63.796678][ T8484] ? __check_object_size+0x3d/0x42f [ 63.802040][ T8484] netlink_sendmsg+0x8ae/0xd70 [ 63.806790][ T8484] ? netlink_unicast+0x710/0x710 [ 63.811710][ T8484] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 63.817230][ T8484] ? apparmor_socket_sendmsg+0x2a/0x30 [ 63.822666][ T8484] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 63.828971][ T8484] ? security_socket_sendmsg+0x8d/0xc0 [ 63.834408][ T8484] ? netlink_unicast+0x710/0x710 [ 63.839318][ T8484] sock_sendmsg+0xd7/0x130 [ 63.843709][ T8484] ___sys_sendmsg+0x803/0x920 [ 63.848533][ T8484] ? copy_msghdr_from_user+0x430/0x430 [ 63.853970][ T8484] ? prep_transhuge_page+0xa0/0xa0 [ 63.859065][ T8484] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 63.865277][ T8484] ? __handle_mm_fault+0x7cb/0x3eb0 [ 63.870452][ T8484] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 63.876665][ T8484] ? __fget_light+0x1a9/0x230 [ 63.881317][ T8484] ? __fdget+0x1b/0x20 [ 63.885362][ T8484] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 63.891580][ T8484] __sys_sendmsg+0x105/0x1d0 [ 63.896186][ T8484] ? __ia32_sys_shutdown+0x80/0x80 [ 63.901279][ T8484] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 63.906712][ T8484] ? do_syscall_64+0x26/0x680 [ 63.911366][ T8484] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 63.917402][ T8484] ? do_syscall_64+0x26/0x680 [ 63.922059][ T8484] __x64_sys_sendmsg+0x78/0xb0 [ 63.926798][ T8484] do_syscall_64+0xfd/0x680 [ 63.931295][ T8484] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 63.937172][ T8484] RIP: 0033:0x4401f9 [ 63.941043][ T8484] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 63.960724][ T8484] RSP: 002b:00007fff6dd45778 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 63.969113][ T8484] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004401f9 [ 63.977177][ T8484] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 63.985120][ T8484] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 63.993069][ T8484] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401a80 [ 64.001014][ T8484] R13: 0000000000401b10 R14: 0000000000000000 R15: 0000000000000000 [ 64.010345][ T8484] Kernel Offset: disabled [ 64.014668][ T8484] Rebooting in 86400 seconds..