Warning: Permanently added '10.128.0.45' (ECDSA) to the list of known hosts. executing program executing program [ 73.541717][ T7140] ================================================================== [ 73.550873][ T7140] BUG: KASAN: null-ptr-deref in choke_reset+0x208/0x340 [ 73.557844][ T7140] Write of size 8 at addr 0000000000000000 by task syz-executor092/7140 [ 73.566148][ T7140] [ 73.568480][ T7140] CPU: 0 PID: 7140 Comm: syz-executor092 Not tainted 5.7.0-rc1-syzkaller #0 [ 73.577363][ T7140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.587505][ T7140] Call Trace: [ 73.590793][ T7140] dump_stack+0x188/0x20d [ 73.595114][ T7140] ? choke_reset+0x208/0x340 [ 73.599696][ T7140] __kasan_report.cold+0x5/0x4d [ 73.604543][ T7140] ? choke_reset+0x208/0x340 [ 73.609641][ T7140] ? choke_reset+0x208/0x340 [ 73.614222][ T7140] kasan_report+0x33/0x50 [ 73.618546][ T7140] check_memory_region+0x141/0x190 [ 73.623793][ T7140] memset+0x20/0x40 [ 73.627597][ T7140] choke_reset+0x208/0x340 [ 73.632006][ T7140] ? choke_destroy+0x40/0x40 [ 73.636592][ T7140] qdisc_reset+0x6b/0x520 [ 73.640964][ T7140] dev_deactivate_queue.constprop.0+0x13c/0x240 [ 73.647281][ T7140] dev_deactivate_many+0xe2/0xba0 [ 73.652310][ T7140] ? __is_module_percpu_address+0x257/0x350 [ 73.658197][ T7140] dev_deactivate+0xf8/0x1c0 [ 73.662780][ T7140] ? dev_deactivate_many+0xba0/0xba0 [ 73.668073][ T7140] ? qdisc_lookup_ops+0x100/0x100 [ 73.673101][ T7140] qdisc_graft+0xd25/0x1120 [ 73.677598][ T7140] ? tc_dump_tclass+0x480/0x480 [ 73.682442][ T7140] ? tc_get_qdisc+0xaf0/0xaf0 [ 73.687104][ T7140] ? nla_memcpy+0xa0/0xa0 [ 73.691427][ T7140] ? ns_capable_common+0xe2/0x100 [ 73.696447][ T7140] tc_modify_qdisc+0xbab/0x1a00 [ 73.701290][ T7140] ? qdisc_create+0x1140/0x1140 [ 73.706133][ T7140] ? mutex_trylock+0x2c0/0x2c0 [ 73.710885][ T7140] ? find_held_lock+0x2d/0x110 [ 73.715647][ T7140] ? qdisc_create+0x1140/0x1140 [ 73.720483][ T7140] rtnetlink_rcv_msg+0x44e/0xad0 [ 73.725418][ T7140] ? rtnl_bridge_getlink+0x870/0x870 [ 73.730715][ T7140] ? lock_acquire+0x1f2/0x8f0 [ 73.735387][ T7140] ? netlink_deliver_tap+0x146/0xb50 [ 73.740739][ T7140] netlink_rcv_skb+0x15a/0x410 [ 73.745515][ T7140] ? rtnl_bridge_getlink+0x870/0x870 [ 73.750792][ T7140] ? netlink_ack+0xa10/0xa10 [ 73.755376][ T7140] netlink_unicast+0x537/0x740 [ 73.760576][ T7140] ? netlink_attachskb+0x810/0x810 [ 73.765674][ T7140] ? _copy_from_iter_full+0x25c/0x870 [ 73.771030][ T7140] ? __phys_addr_symbol+0x2c/0x70 [ 73.776039][ T7140] ? __check_object_size+0x171/0x437 [ 73.781368][ T7140] netlink_sendmsg+0x882/0xe10 [ 73.786186][ T7140] ? aa_af_perm+0x260/0x260 [ 73.790697][ T7140] ? netlink_unicast+0x740/0x740 [ 73.795634][ T7140] ? netlink_unicast+0x740/0x740 [ 73.800579][ T7140] sock_sendmsg+0xcf/0x120 [ 73.804983][ T7140] ____sys_sendmsg+0x6bf/0x7e0 [ 73.809732][ T7140] ? print_usage_bug+0x240/0x240 [ 73.814652][ T7140] ? kernel_sendmsg+0x50/0x50 [ 73.819320][ T7140] ___sys_sendmsg+0x100/0x170 [ 73.823989][ T7140] ? sendmsg_copy_msghdr+0x70/0x70 [ 73.829082][ T7140] ? mark_held_locks+0xe0/0xe0 [ 73.833830][ T7140] ? __this_cpu_preempt_check+0x28/0x190 [ 73.839442][ T7140] ? percpu_counter_add_batch+0x123/0x180 [ 73.845145][ T7140] ? find_held_lock+0x2d/0x110 [ 73.849902][ T7140] ? __fd_install+0x1b4/0x600 [ 73.854567][ T7140] ? lock_downgrade+0x840/0x840 [ 73.859410][ T7140] ? __fget_light+0x1ab/0x270 [ 73.864078][ T7140] __sys_sendmsg+0xec/0x1b0 [ 73.868562][ T7140] ? __sys_sendmsg_sock+0xb0/0xb0 [ 73.873613][ T7140] ? trace_hardirqs_off_caller+0x55/0x230 [ 73.879313][ T7140] ? do_syscall_64+0x21/0x7d0 [ 73.884234][ T7140] do_syscall_64+0xf6/0x7d0 [ 73.888729][ T7140] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 73.894609][ T7140] RIP: 0033:0x4415c9 [ 73.898484][ T7140] Code: e8 fc ab 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 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 9b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 73.918095][ T7140] RSP: 002b:00007ffc7666f9d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 73.926501][ T7140] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004415c9 [ 73.934482][ T7140] RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000004 [ 73.942444][ T7140] RBP: 0000000000011f24 R08: 00000000004002c8 R09: 00000000004002c8 [ 73.950608][ T7140] R10: 00000000004002c8 R11: 0000000000000246 R12: 00000000004023f0 [ 73.958571][ T7140] R13: 0000000000402480 R14: 0000000000000000 R15: 0000000000000000 [ 73.966544][ T7140] ================================================================== [ 73.974579][ T7140] Disabling lock debugging due to kernel taint [ 73.980770][ T7140] Kernel panic - not syncing: panic_on_warn set ... [ 73.987360][ T7140] CPU: 0 PID: 7140 Comm: syz-executor092 Tainted: G B 5.7.0-rc1-syzkaller #0 [ 73.997413][ T7140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.007464][ T7140] Call Trace: [ 74.010756][ T7140] dump_stack+0x188/0x20d [ 74.015072][ T7140] panic+0x2e3/0x75c [ 74.018944][ T7140] ? add_taint.cold+0x16/0x16 [ 74.023610][ T7140] ? retint_kernel+0x2b/0x2b [ 74.028176][ T7140] ? choke_reset+0x208/0x340 [ 74.032757][ T7140] ? trace_hardirqs_on+0x55/0x220 [ 74.037756][ T7140] ? choke_reset+0x208/0x340 [ 74.042320][ T7140] end_report+0x4d/0x53 [ 74.046452][ T7140] __kasan_report.cold+0xd/0x4d [ 74.051277][ T7140] ? choke_reset+0x208/0x340 [ 74.055844][ T7140] ? choke_reset+0x208/0x340 [ 74.060417][ T7140] kasan_report+0x33/0x50 [ 74.064743][ T7140] check_memory_region+0x141/0x190 [ 74.069829][ T7140] memset+0x20/0x40 [ 74.073623][ T7140] choke_reset+0x208/0x340 [ 74.078014][ T7140] ? choke_destroy+0x40/0x40 [ 74.082580][ T7140] qdisc_reset+0x6b/0x520 [ 74.086890][ T7140] dev_deactivate_queue.constprop.0+0x13c/0x240 [ 74.093105][ T7140] dev_deactivate_many+0xe2/0xba0 [ 74.098105][ T7140] ? __is_module_percpu_address+0x257/0x350 [ 74.103974][ T7140] dev_deactivate+0xf8/0x1c0 [ 74.108540][ T7140] ? dev_deactivate_many+0xba0/0xba0 [ 74.113812][ T7140] ? qdisc_lookup_ops+0x100/0x100 [ 74.118829][ T7140] qdisc_graft+0xd25/0x1120 [ 74.123420][ T7140] ? tc_dump_tclass+0x480/0x480 [ 74.128250][ T7140] ? tc_get_qdisc+0xaf0/0xaf0 [ 74.132916][ T7140] ? nla_memcpy+0xa0/0xa0 [ 74.137234][ T7140] ? ns_capable_common+0xe2/0x100 [ 74.142293][ T7140] tc_modify_qdisc+0xbab/0x1a00 [ 74.147127][ T7140] ? qdisc_create+0x1140/0x1140 [ 74.151963][ T7140] ? mutex_trylock+0x2c0/0x2c0 [ 74.156747][ T7140] ? find_held_lock+0x2d/0x110 [ 74.161490][ T7140] ? qdisc_create+0x1140/0x1140 [ 74.166319][ T7140] rtnetlink_rcv_msg+0x44e/0xad0 [ 74.171236][ T7140] ? rtnl_bridge_getlink+0x870/0x870 [ 74.176502][ T7140] ? lock_acquire+0x1f2/0x8f0 [ 74.181169][ T7140] ? netlink_deliver_tap+0x146/0xb50 [ 74.186430][ T7140] netlink_rcv_skb+0x15a/0x410 [ 74.191169][ T7140] ? rtnl_bridge_getlink+0x870/0x870 [ 74.196427][ T7140] ? netlink_ack+0xa10/0xa10 [ 74.200995][ T7140] netlink_unicast+0x537/0x740 [ 74.205735][ T7140] ? netlink_attachskb+0x810/0x810 [ 74.210824][ T7140] ? _copy_from_iter_full+0x25c/0x870 [ 74.216173][ T7140] ? __phys_addr_symbol+0x2c/0x70 [ 74.221184][ T7140] ? __check_object_size+0x171/0x437 [ 74.226540][ T7140] netlink_sendmsg+0x882/0xe10 [ 74.231280][ T7140] ? aa_af_perm+0x260/0x260 [ 74.235766][ T7140] ? netlink_unicast+0x740/0x740 [ 74.240682][ T7140] ? netlink_unicast+0x740/0x740 [ 74.245603][ T7140] sock_sendmsg+0xcf/0x120 [ 74.249996][ T7140] ____sys_sendmsg+0x6bf/0x7e0 [ 74.254738][ T7140] ? print_usage_bug+0x240/0x240 [ 74.259923][ T7140] ? kernel_sendmsg+0x50/0x50 [ 74.264589][ T7140] ___sys_sendmsg+0x100/0x170 [ 74.269242][ T7140] ? sendmsg_copy_msghdr+0x70/0x70 [ 74.274340][ T7140] ? mark_held_locks+0xe0/0xe0 [ 74.279079][ T7140] ? __this_cpu_preempt_check+0x28/0x190 [ 74.287120][ T7140] ? percpu_counter_add_batch+0x123/0x180 [ 74.292834][ T7140] ? find_held_lock+0x2d/0x110 [ 74.297587][ T7140] ? __fd_install+0x1b4/0x600 [ 74.302253][ T7140] ? lock_downgrade+0x840/0x840 [ 74.307090][ T7140] ? __fget_light+0x1ab/0x270 [ 74.311792][ T7140] __sys_sendmsg+0xec/0x1b0 [ 74.316275][ T7140] ? __sys_sendmsg_sock+0xb0/0xb0 [ 74.321450][ T7140] ? trace_hardirqs_off_caller+0x55/0x230 [ 74.327175][ T7140] ? do_syscall_64+0x21/0x7d0 [ 74.331846][ T7140] do_syscall_64+0xf6/0x7d0 [ 74.336331][ T7140] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 74.342199][ T7140] RIP: 0033:0x4415c9 [ 74.346209][ T7140] Code: e8 fc ab 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 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 9b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 74.365912][ T7140] RSP: 002b:00007ffc7666f9d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 74.374317][ T7140] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004415c9 [ 74.382271][ T7140] RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000004 [ 74.390226][ T7140] RBP: 0000000000011f24 R08: 00000000004002c8 R09: 00000000004002c8 [ 74.398186][ T7140] R10: 00000000004002c8 R11: 0000000000000246 R12: 00000000004023f0 [ 74.406142][ T7140] R13: 0000000000402480 R14: 0000000000000000 R15: 0000000000000000 [ 74.415319][ T7140] Kernel Offset: disabled [ 74.419643][ T7140] Rebooting in 86400 seconds..