Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. [ 53.058101][ T8391] sshd (8391) used greatest stack depth: 23096 bytes left Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.51' (ECDSA) to the list of known hosts. syzkaller login: [ 61.239419][ T8459] IPVS: ftp: loaded support on port[0] = 21 [ 61.327036][ T8459] chnl_net:caif_netlink_parms(): no params data found [ 61.376990][ T8459] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.385487][ T8459] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.393996][ T8459] device bridge_slave_0 entered promiscuous mode [ 61.403979][ T8459] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.412141][ T8459] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.421564][ T8459] device bridge_slave_1 entered promiscuous mode [ 61.441478][ T8459] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.452353][ T8459] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.474424][ T8459] team0: Port device team_slave_0 added [ 61.481612][ T8459] team0: Port device team_slave_1 added [ 61.499790][ T8459] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 61.506720][ T8459] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 61.533014][ T8459] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 61.547033][ T8459] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 61.554091][ T8459] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 61.580446][ T8459] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 61.607964][ T8459] device hsr_slave_0 entered promiscuous mode [ 61.615331][ T8459] device hsr_slave_1 entered promiscuous mode [ 61.714128][ T8459] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 61.723815][ T8459] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 61.734256][ T8459] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 61.745704][ T8459] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 61.771366][ T8459] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.778661][ T8459] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.786356][ T8459] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.793598][ T8459] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.835793][ T8459] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.849953][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.861500][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.870160][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.877902][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 61.892221][ T8459] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.910045][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.918622][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.925701][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.934477][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.944491][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.951605][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.971828][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 61.980278][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 61.990095][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 62.003027][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 62.017403][ T8459] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 62.030155][ T8459] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 62.037996][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 62.058441][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 62.065814][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 62.077881][ T8459] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 62.100655][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 62.121051][ T2999] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 62.129742][ T2999] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 62.137391][ T2999] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 62.149208][ T8459] device veth0_vlan entered promiscuous mode [ 62.161828][ T8459] device veth1_vlan entered promiscuous mode [ 62.183384][ T4905] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 62.191964][ T4905] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 62.201006][ T4905] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 62.212619][ T8459] device veth0_macvtap entered promiscuous mode [ 62.222395][ T8459] device veth1_macvtap entered promiscuous mode [ 62.242007][ T8459] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 62.250034][ T4905] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 62.260975][ T4905] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 62.273136][ T8459] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 62.281318][ T4905] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 62.293031][ T8459] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 62.303256][ T8459] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.312366][ T8459] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.323539][ T8459] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.375665][ T8459] nf_conntrack: default automatic helper assignment has been turned off for security reasons and CT-based firewall rule not found. Use the iptables CT target to attach helpers instead. [ 62.402861][ T8459] [ 62.405204][ T8459] ======================================================== [ 62.412371][ T8459] WARNING: possible irq lock inversion dependency detected [ 62.419583][ T8459] 5.10.0-rc7-syzkaller #0 Not tainted [ 62.424957][ T8459] -------------------------------------------------------- [ 62.432155][ T8459] syz-executor842/8459 just changed the state of lock: [ 62.438983][ T8459] ffff8880240c0b38 (&f->f_owner.lock){.+..}-{2:2}, at: send_sigurg+0x1e/0xab0 [ 62.447839][ T8459] but this lock was taken by another, HARDIRQ-safe lock in the past: [ 62.456040][ T8459] (&dev->event_lock){-...}-{2:2} [ 62.456053][ T8459] [ 62.456053][ T8459] [ 62.456053][ T8459] and interrupts could create inverse lock ordering between them. [ 62.456053][ T8459] [ 62.475318][ T8459] [ 62.475318][ T8459] other info that might help us debug this: [ 62.483358][ T8459] Chain exists of: [ 62.483358][ T8459] &dev->event_lock --> &new->fa_lock --> &f->f_owner.lock [ 62.483358][ T8459] [ 62.496475][ T8459] Possible interrupt unsafe locking scenario: [ 62.496475][ T8459] [ 62.504765][ T8459] CPU0 CPU1 [ 62.510102][ T8459] ---- ---- [ 62.515438][ T8459] lock(&f->f_owner.lock); [ 62.519924][ T8459] local_irq_disable(); [ 62.526649][ T8459] lock(&dev->event_lock); [ 62.533640][ T8459] lock(&new->fa_lock); [ 62.540457][ T8459] [ 62.543882][ T8459] lock(&dev->event_lock); [ 62.548533][ T8459] [ 62.548533][ T8459] *** DEADLOCK *** [ 62.548533][ T8459] [ 62.556662][ T8459] 1 lock held by syz-executor842/8459: [ 62.562091][ T8459] #0: ffff88801b140ce0 (sk_lock-AF_INET){+.+.}-{0:0}, at: __inet_stream_connect+0x596/0xe30 [ 62.572240][ T8459] [ 62.572240][ T8459] the shortest dependencies between 2nd lock and 1st lock: [ 62.581596][ T8459] -> (&dev->event_lock){-...}-{2:2} { [ 62.587232][ T8459] IN-HARDIRQ-W at: [ 62.591470][ T8459] lock_acquire+0x29d/0x740 [ 62.598149][ T8459] _raw_spin_lock_irqsave+0x39/0x50 [ 62.605493][ T8459] input_event+0x7b/0xb0 [ 62.611885][ T8459] psmouse_report_standard_buttons+0x2c/0x80 [ 62.620009][ T8459] psmouse_process_byte+0x1e1/0x890 [ 62.627350][ T8459] psmouse_handle_byte+0x41/0x1b0 [ 62.634515][ T8459] psmouse_interrupt+0x304/0xf00 [ 62.641593][ T8459] serio_interrupt+0x88/0x150 [ 62.648413][ T8459] i8042_interrupt+0x27a/0x520 [ 62.655320][ T8459] __handle_irq_event_percpu+0x303/0x8f0 [ 62.663110][ T8459] handle_irq_event+0x102/0x290 [ 62.670102][ T8459] handle_edge_irq+0x25f/0xd00 [ 62.677007][ T8459] asm_call_irq_on_stack+0xf/0x20 [ 62.684172][ T8459] common_interrupt+0x120/0x200 [ 62.691165][ T8459] asm_common_interrupt+0x1e/0x40 [ 62.698336][ T8459] _raw_spin_unlock_irqrestore+0x25/0x50 [ 62.706109][ T8459] i8042_command+0x12e/0x150 [ 62.712902][ T8459] i8042_aux_write+0xd7/0x120 [ 62.719731][ T8459] ps2_do_sendbyte+0x2ca/0x710 [ 62.726643][ T8459] ps2_sendbyte+0x58/0x150 [ 62.733201][ T8459] cypress_ps2_sendbyte+0x2e/0x160 [ 62.740454][ T8459] cypress_send_ext_cmd+0x1d0/0x8d0 [ 62.747794][ T8459] cypress_detect+0x75/0x190 [ 62.754562][ T8459] psmouse_try_protocol+0x211/0x370 [ 62.761945][ T8459] psmouse_extensions+0x557/0x930 [ 62.769148][ T8459] psmouse_switch_protocol+0x52a/0x740 [ 62.776747][ T8459] psmouse_connect+0x5e6/0xfc0 [ 62.783651][ T8459] serio_driver_probe+0x72/0xa0 [ 62.790644][ T8459] really_probe+0x291/0xde0 [ 62.797303][ T8459] driver_probe_device+0x26b/0x3d0 [ 62.804558][ T8459] device_driver_attach+0x228/0x290 [ 62.811907][ T8459] __driver_attach+0x15b/0x2f0 [ 62.818813][ T8459] bus_for_each_dev+0x147/0x1d0 [ 62.825806][ T8459] serio_handle_event+0x5f6/0xa30 [ 62.832970][ T8459] process_one_work+0x933/0x15a0 [ 62.840048][ T8459] worker_thread+0x64c/0x1120 [ 62.846866][ T8459] kthread+0x3b1/0x4a0 [ 62.853079][ T8459] ret_from_fork+0x1f/0x30 [ 62.859652][ T8459] INITIAL USE at: [ 62.863782][ T8459] lock_acquire+0x29d/0x740 [ 62.870342][ T8459] _raw_spin_lock_irqsave+0x39/0x50 [ 62.877593][ T8459] input_inject_event+0xa6/0x310 [ 62.884596][ T8459] led_set_brightness_nosleep+0xe6/0x1a0 [ 62.892283][ T8459] led_set_brightness+0x134/0x170 [ 62.899362][ T8459] led_trigger_event+0x70/0xd0 [ 62.906184][ T8459] kbd_led_trigger_activate+0xfa/0x130 [ 62.913711][ T8459] led_trigger_set+0x61e/0xbd0 [ 62.920529][ T8459] led_trigger_set_default+0x1a6/0x230 [ 62.928042][ T8459] led_classdev_register_ext+0x5b1/0x7c0 [ 62.935728][ T8459] input_leds_connect+0x3fb/0x740 [ 62.942809][ T8459] input_attach_handler+0x180/0x1f0 [ 62.950063][ T8459] input_register_device.cold+0xf0/0x307 [ 62.957761][ T8459] atkbd_connect+0x736/0xa00 [ 62.964416][ T8459] serio_driver_probe+0x72/0xa0 [ 62.971321][ T8459] really_probe+0x291/0xde0 [ 62.977877][ T8459] driver_probe_device+0x26b/0x3d0 [ 62.985041][ T8459] device_driver_attach+0x228/0x290 [ 62.992293][ T8459] __driver_attach+0x15b/0x2f0 [ 62.999109][ T8459] bus_for_each_dev+0x147/0x1d0 [ 63.006016][ T8459] serio_handle_event+0x5f6/0xa30 [ 63.013096][ T8459] process_one_work+0x933/0x15a0 [ 63.020088][ T8459] worker_thread+0x64c/0x1120 [ 63.026819][ T8459] kthread+0x3b1/0x4a0 [ 63.032945][ T8459] ret_from_fork+0x1f/0x30 [ 63.039413][ T8459] } [ 63.042153][ T8459] ... key at: [] __key.8+0x0/0x40 [ 63.049491][ T8459] ... acquired at: [ 63.053531][ T8459] _raw_spin_lock+0x2a/0x40 [ 63.058180][ T8459] evdev_pass_values.part.0+0xf6/0x970 [ 63.063805][ T8459] evdev_events+0x28b/0x3f0 [ 63.068453][ T8459] input_to_handler+0x2a0/0x4c0 [ 63.073460][ T8459] input_pass_values.part.0+0x284/0x700 [ 63.079148][ T8459] input_handle_event+0x324/0x1400 [ 63.084401][ T8459] input_inject_event+0x2f5/0x310 [ 63.089569][ T8459] evdev_write+0x430/0x760 [ 63.094130][ T8459] vfs_write+0x28e/0xa30 [ 63.098530][ T8459] ksys_write+0x1ee/0x250 [ 63.103005][ T8459] do_syscall_64+0x2d/0x70 [ 63.107565][ T8459] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 63.113594][ T8459] [ 63.115890][ T8459] -> (&client->buffer_lock){....}-{2:2} { [ 63.121788][ T8459] INITIAL USE at: [ 63.125841][ T8459] lock_acquire+0x29d/0x740 [ 63.132239][ T8459] _raw_spin_lock+0x2a/0x40 [ 63.138625][ T8459] evdev_pass_values.part.0+0xf6/0x970 [ 63.145964][ T8459] evdev_events+0x28b/0x3f0 [ 63.152348][ T8459] input_to_handler+0x2a0/0x4c0 [ 63.159096][ T8459] input_pass_values.part.0+0x284/0x700 [ 63.166521][ T8459] input_handle_event+0x324/0x1400 [ 63.173511][ T8459] input_inject_event+0x2f5/0x310 [ 63.180418][ T8459] evdev_write+0x430/0x760 [ 63.186728][ T8459] vfs_write+0x28e/0xa30 [ 63.192871][ T8459] ksys_write+0x1ee/0x250 [ 63.199090][ T8459] do_syscall_64+0x2d/0x70 [ 63.205397][ T8459] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 63.213165][ T8459] } [ 63.215815][ T8459] ... key at: [] __key.4+0x0/0x40 [ 63.223062][ T8459] ... acquired at: [ 63.227015][ T8459] _raw_read_lock+0x5b/0x70 [ 63.231667][ T8459] kill_fasync+0x14b/0x460 [ 63.236672][ T8459] evdev_pass_values.part.0+0x64e/0x970 [ 63.242387][ T8459] evdev_events+0x28b/0x3f0 [ 63.247036][ T8459] input_to_handler+0x2a0/0x4c0 [ 63.252050][ T8459] input_pass_values.part.0+0x284/0x700 [ 63.257749][ T8459] input_handle_event+0x324/0x1400 [ 63.263017][ T8459] input_inject_event+0x2f5/0x310 [ 63.268186][ T8459] evdev_write+0x430/0x760 [ 63.272745][ T8459] vfs_write+0x28e/0xa30 [ 63.277132][ T8459] ksys_write+0x1ee/0x250 [ 63.281623][ T8459] do_syscall_64+0x2d/0x70 [ 63.286186][ T8459] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 63.292215][ T8459] [ 63.294512][ T8459] -> (&new->fa_lock){....}-{2:2} { [ 63.299690][ T8459] INITIAL READ USE at: [ 63.304077][ T8459] lock_acquire+0x29d/0x740 [ 63.310722][ T8459] _raw_read_lock+0x5b/0x70 [ 63.317367][ T8459] kill_fasync+0x14b/0x460 [ 63.323925][ T8459] evdev_pass_values.part.0+0x64e/0x970 [ 63.331611][ T8459] evdev_events+0x28b/0x3f0 [ 63.338256][ T8459] input_to_handler+0x2a0/0x4c0 [ 63.345248][ T8459] input_pass_values.part.0+0x284/0x700 [ 63.352936][ T8459] input_handle_event+0x324/0x1400 [ 63.360188][ T8459] input_inject_event+0x2f5/0x310 [ 63.367352][ T8459] evdev_write+0x430/0x760 [ 63.373909][ T8459] vfs_write+0x28e/0xa30 [ 63.380304][ T8459] ksys_write+0x1ee/0x250 [ 63.386776][ T8459] do_syscall_64+0x2d/0x70 [ 63.393339][ T8459] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 63.401367][ T8459] } [ 63.403932][ T8459] ... key at: [] __key.0+0x0/0x40 [ 63.411091][ T8459] ... acquired at: [ 63.414959][ T8459] _raw_read_lock+0x5b/0x70 [ 63.419609][ T8459] send_sigio+0x24/0x350 [ 63.423994][ T8459] kill_fasync+0x205/0x460 [ 63.428566][ T8459] evdev_pass_values.part.0+0x64e/0x970 [ 63.434254][ T8459] evdev_events+0x28b/0x3f0 [ 63.438901][ T8459] input_to_handler+0x2a0/0x4c0 [ 63.443894][ T8459] input_pass_values.part.0+0x284/0x700 [ 63.450016][ T8459] input_handle_event+0x324/0x1400 [ 63.455283][ T8459] input_inject_event+0x2f5/0x310 [ 63.460465][ T8459] evdev_write+0x430/0x760 [ 63.465035][ T8459] vfs_write+0x28e/0xa30 [ 63.469435][ T8459] ksys_write+0x1ee/0x250 [ 63.473911][ T8459] do_syscall_64+0x2d/0x70 [ 63.478588][ T8459] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 63.484619][ T8459] [ 63.486931][ T8459] -> (&f->f_owner.lock){.+..}-{2:2} { [ 63.492284][ T8459] HARDIRQ-ON-R at: [ 63.496243][ T8459] lock_acquire+0x29d/0x740 [ 63.502379][ T8459] _raw_read_lock+0x5b/0x70 [ 63.508504][ T8459] send_sigurg+0x1e/0xab0 [ 63.514465][ T8459] sk_send_sigurg+0x76/0x300 [ 63.520682][ T8459] tcp_check_urg.isra.0+0x1f4/0x710 [ 63.527505][ T8459] tcp_rcv_established+0x106c/0x1eb0 [ 63.534414][ T8459] tcp_v4_do_rcv+0x5d1/0x870 [ 63.540630][ T8459] __release_sock+0x134/0x3a0 [ 63.546930][ T8459] release_sock+0x54/0x1b0 [ 63.552968][ T8459] sk_stream_wait_memory+0x5bd/0xe60 [ 63.559874][ T8459] tcp_sendmsg_locked+0x1034/0x2d20 [ 63.566692][ T8459] tcp_sendmsg+0x2b/0x40 [ 63.572565][ T8459] inet_sendmsg+0x99/0xe0 [ 63.578516][ T8459] sock_sendmsg+0xcf/0x120 [ 63.584569][ T8459] __sys_sendto+0x21c/0x320 [ 63.590693][ T8459] __x64_sys_sendto+0xdd/0x1b0 [ 63.597088][ T8459] do_syscall_64+0x2d/0x70 [ 63.603128][ T8459] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 63.610640][ T8459] INITIAL READ USE at: [ 63.614956][ T8459] lock_acquire+0x29d/0x740 [ 63.621425][ T8459] _raw_read_lock+0x5b/0x70 [ 63.627899][ T8459] send_sigio+0x24/0x350 [ 63.634197][ T8459] kill_fasync+0x205/0x460 [ 63.640582][ T8459] evdev_pass_values.part.0+0x64e/0x970 [ 63.648095][ T8459] evdev_events+0x28b/0x3f0 [ 63.654576][ T8459] input_to_handler+0x2a0/0x4c0 [ 63.661395][ T8459] input_pass_values.part.0+0x284/0x700 [ 63.668921][ T8459] input_handle_event+0x324/0x1400 [ 63.675997][ T8459] input_inject_event+0x2f5/0x310 [ 63.682990][ T8459] evdev_write+0x430/0x760 [ 63.689375][ T8459] vfs_write+0x28e/0xa30 [ 63.695597][ T8459] ksys_write+0x1ee/0x250 [ 63.701894][ T8459] do_syscall_64+0x2d/0x70 [ 63.709233][ T8459] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 63.717087][ T8459] } [ 63.719567][ T8459] ... key at: [] __key.5+0x0/0x40 [ 63.726649][ T8459] ... acquired at: [ 63.730431][ T8459] __lock_acquire+0x120a/0x5500 [ 63.735424][ T8459] lock_acquire+0x29d/0x740 [ 63.740072][ T8459] _raw_read_lock+0x5b/0x70 [ 63.744730][ T8459] send_sigurg+0x1e/0xab0 [ 63.749211][ T8459] sk_send_sigurg+0x76/0x300 [ 63.753955][ T8459] tcp_check_urg.isra.0+0x1f4/0x710 [ 63.759300][ T8459] tcp_rcv_established+0x106c/0x1eb0 [ 63.764731][ T8459] tcp_v4_do_rcv+0x5d1/0x870 [ 63.769504][ T8459] __release_sock+0x134/0x3a0 [ 63.774338][ T8459] release_sock+0x54/0x1b0 [ 63.778945][ T8459] sk_stream_wait_memory+0x5bd/0xe60 [ 63.784379][ T8459] tcp_sendmsg_locked+0x1034/0x2d20 [ 63.789760][ T8459] tcp_sendmsg+0x2b/0x40 [ 63.794186][ T8459] inet_sendmsg+0x99/0xe0 [ 63.798662][ T8459] sock_sendmsg+0xcf/0x120 [ 63.803222][ T8459] __sys_sendto+0x21c/0x320 [ 63.807888][ T8459] __x64_sys_sendto+0xdd/0x1b0 [ 63.812839][ T8459] do_syscall_64+0x2d/0x70 [ 63.817402][ T8459] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 63.823432][ T8459] [ 63.825731][ T8459] [ 63.825731][ T8459] stack backtrace: [ 63.831594][ T8459] CPU: 0 PID: 8459 Comm: syz-executor842 Not tainted 5.10.0-rc7-syzkaller #0 [ 63.840319][ T8459] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.850394][ T8459] Call Trace: [ 63.853697][ T8459] dump_stack+0x107/0x163 [ 63.858000][ T8459] mark_lock.cold+0x1a/0x73 [ 63.862521][ T8459] ? lock_chain_count+0x20/0x20 [ 63.867351][ T8459] ? __lock_acquire+0x16b7/0x5500 [ 63.872347][ T8459] ? tcp_ack_update_rtt+0x485/0x1630 [ 63.877606][ T8459] __lock_acquire+0x120a/0x5500 [ 63.882469][ T8459] ? tcp_newly_delivered+0xb1/0x120 [ 63.887640][ T8459] ? tcp_update_pacing_rate+0x1c6/0x2d0 [ 63.893158][ T8459] ? tcp_xmit_recovery+0x17/0x180 [ 63.898155][ T8459] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 63.904156][ T8459] ? tcp_ack+0xea1/0x5960 [ 63.908458][ T8459] lock_acquire+0x29d/0x740 [ 63.912933][ T8459] ? send_sigurg+0x1e/0xab0 [ 63.917419][ T8459] ? lock_release+0x710/0x710 [ 63.922082][ T8459] ? tcp_fastretrans_alert+0x2ca0/0x2ca0 [ 63.927701][ T8459] _raw_read_lock+0x5b/0x70 [ 63.932184][ T8459] ? send_sigurg+0x1e/0xab0 [ 63.936664][ T8459] send_sigurg+0x1e/0xab0 [ 63.940971][ T8459] ? tcp_reset+0x470/0x470 [ 63.945732][ T8459] sk_send_sigurg+0x76/0x300 [ 63.950309][ T8459] tcp_check_urg.isra.0+0x1f4/0x710 [ 63.955482][ T8459] tcp_rcv_established+0x106c/0x1eb0 [ 63.960741][ T8459] ? tcp_data_queue+0x4b10/0x4b10 [ 63.965752][ T8459] ? mark_held_locks+0x9f/0xe0 [ 63.970491][ T8459] tcp_v4_do_rcv+0x5d1/0x870 [ 63.975055][ T8459] __release_sock+0x134/0x3a0 [ 63.979717][ T8459] release_sock+0x54/0x1b0 [ 63.984105][ T8459] sk_stream_wait_memory+0x5bd/0xe60 [ 63.989398][ T8459] ? sk_stream_kill_queues+0x530/0x530 [ 63.994840][ T8459] ? __init_waitqueue_head+0x110/0x110 [ 64.000271][ T8459] ? tcp_push+0x446/0x6c0 [ 64.004589][ T8459] tcp_sendmsg_locked+0x1034/0x2d20 [ 64.009762][ T8459] ? tcp_sendpage+0xd0/0xd0 [ 64.014238][ T8459] ? mark_held_locks+0x9f/0xe0 [ 64.018976][ T8459] ? __local_bh_enable_ip+0x9c/0x110 [ 64.024235][ T8459] tcp_sendmsg+0x2b/0x40 [ 64.028451][ T8459] inet_sendmsg+0x99/0xe0 [ 64.032751][ T8459] ? inet_send_prepare+0x4d0/0x4d0 [ 64.037859][ T8459] sock_sendmsg+0xcf/0x120 [ 64.042250][ T8459] __sys_sendto+0x21c/0x320 [ 64.046725][ T8459] ? __ia32_sys_getpeername+0xb0/0xb0 [ 64.052069][ T8459] ? __local_bh_enable_ip+0x9c/0x110 [ 64.057326][ T8459] ? __sys_bind+0x111/0x250 [ 64.061815][ T8459] ? __ia32_sys_socketpair+0xf0/0xf0 [ 64.067081][ T8459] ? _down_write_nest_lock+0x150/0x150 [ 64.072515][ T8459] __x64_sys_sendto+0xdd/0x1b0 [ 64.077254][ T8459] ? lockdep_hardirqs_on+0x79/0x100 [ 64.082423][ T8459] ? syscall_enter_from_user_mode+0x1d/0x50 [ 64.088285][ T8459] do_syscall_64+0x2d/0x70 [ 64.092684][ T8459] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 64.098546][ T8459] RIP: 0033:0x447309 [ 64.102415][ T8459] 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 0b d2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 64.122090][ T8459] RSP: 002b:00007ffd544afe08 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 64.130474][ T8459] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000447309 [ 64.138416][ T8459] RDX: ffffffffffffff58 RSI: 0000000020000140 RDI: 0000000000000004 [ 64.146359][ T8459] RBP: 00007ffd544afe20 R08: 0000000020000100 R09: 0000000000000010 [ 64.154505][ T8459] R10: 0000000020008005 R11: 0000000000000246 R12: 00007ffd544afe30 [ 64.162448][ T8459] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000