Warning: Permanently added '[localhost]:46582' (ED25519) to the list of known hosts. 1970/01/01 00:09:13 fuzzer started 1970/01/01 00:09:27 dialing manager at localhost:30004 syzkaller login: [ 574.792552][ T3010] cgroup: Unknown subsys name 'net' [ 576.064774][ T3010] cgroup: Unknown subsys name 'rlimit' [ 635.903050][ T3010] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k 1970/01/01 00:10:35 syscalls: 211 1970/01/01 00:10:35 code coverage: enabled 1970/01/01 00:10:35 comparison tracing: enabled 1970/01/01 00:10:35 extra coverage: enabled 1970/01/01 00:10:35 delay kcov mmap: enabled 1970/01/01 00:10:35 setuid sandbox: enabled 1970/01/01 00:10:35 namespace sandbox: enabled 1970/01/01 00:10:35 Android sandbox: /sys/fs/selinux/policy does not exist 1970/01/01 00:10:35 fault injection: enabled 1970/01/01 00:10:35 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 1970/01/01 00:10:35 net packet injection: enabled 1970/01/01 00:10:35 net device setup: enabled 1970/01/01 00:10:35 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 1970/01/01 00:10:35 devlink PCI setup: PCI device 0000:00:10.0 is not available 1970/01/01 00:10:35 NIC VF setup: PCI device 0000:00:11.0 is not available 1970/01/01 00:10:35 USB emulation: enabled 1970/01/01 00:10:35 hci packet injection: /dev/vhci does not exist 1970/01/01 00:10:35 wifi device emulation: /sys/class/mac80211_hwsim/ does not exist 1970/01/01 00:10:35 802.15.4 emulation: /sys/bus/platform/devices/mac802154_hwsim does not exist 1970/01/01 00:10:35 swap file: enabled 1970/01/01 00:10:35 fetching corpus: 0, signal 0/2000 (executing program) 1970/01/01 00:10:40 fetching corpus: 46, signal 21196/23922 (executing program) 1970/01/01 00:10:46 fetching corpus: 95, signal 27775/31264 (executing program) 1970/01/01 00:10:50 fetching corpus: 145, signal 32428/36547 (executing program) 1970/01/01 00:10:54 fetching corpus: 195, signal 34898/39645 (executing program) 1970/01/01 00:10:57 fetching corpus: 245, signal 37379/42604 (executing program) 1970/01/01 00:10:59 fetching corpus: 295, signal 38476/44301 (executing program) 1970/01/01 00:11:02 fetching corpus: 345, signal 40133/46393 (executing program) 1970/01/01 00:11:04 fetching corpus: 394, signal 44039/49953 (executing program) 1970/01/01 00:11:08 fetching corpus: 444, signal 46644/52402 (executing program) 1970/01/01 00:11:11 fetching corpus: 494, signal 47573/53573 (executing program) 1970/01/01 00:11:14 fetching corpus: 544, signal 48297/54570 (executing program) 1970/01/01 00:11:17 fetching corpus: 594, signal 49034/55529 (executing program) 1970/01/01 00:11:21 fetching corpus: 644, signal 49582/56319 (executing program) 1970/01/01 00:11:23 fetching corpus: 694, signal 50376/57245 (executing program) 1970/01/01 00:11:26 fetching corpus: 743, signal 51522/58336 (executing program) 1970/01/01 00:11:29 fetching corpus: 793, signal 51946/58984 (executing program) 1970/01/01 00:11:32 fetching corpus: 843, signal 52509/59659 (executing program) 1970/01/01 00:11:36 fetching corpus: 893, signal 52958/60268 (executing program) 1970/01/01 00:11:40 fetching corpus: 942, signal 53519/60844 (executing program) 1970/01/01 00:11:44 fetching corpus: 992, signal 54061/61393 (executing program) 1970/01/01 00:11:46 fetching corpus: 1042, signal 54468/61863 (executing program) 1970/01/01 00:11:50 fetching corpus: 1092, signal 55016/62369 (executing program) 1970/01/01 00:11:53 fetching corpus: 1141, signal 55625/62858 (executing program) 1970/01/01 00:11:58 fetching corpus: 1191, signal 56050/63245 (executing program) 1970/01/01 00:12:00 fetching corpus: 1241, signal 56422/63619 (executing program) 1970/01/01 00:12:04 fetching corpus: 1291, signal 56797/63948 (executing program) 1970/01/01 00:12:07 fetching corpus: 1340, signal 57177/64252 (executing program) 1970/01/01 00:12:10 fetching corpus: 1390, signal 57516/64551 (executing program) 1970/01/01 00:12:13 fetching corpus: 1439, signal 57871/64815 (executing program) 1970/01/01 00:12:15 fetching corpus: 1489, signal 58350/65070 (executing program) 1970/01/01 00:12:18 fetching corpus: 1539, signal 59228/65308 (executing program) 1970/01/01 00:12:20 fetching corpus: 1589, signal 59852/65446 (executing program) 1970/01/01 00:12:23 fetching corpus: 1638, signal 60061/65446 (executing program) 1970/01/01 00:12:25 fetching corpus: 1687, signal 60266/65451 (executing program) 1970/01/01 00:12:28 fetching corpus: 1736, signal 60529/65463 (executing program) 1970/01/01 00:12:32 fetching corpus: 1786, signal 60770/65463 (executing program) 1970/01/01 00:12:34 fetching corpus: 1836, signal 60978/65463 (executing program) 1970/01/01 00:12:38 fetching corpus: 1886, signal 61213/65468 (executing program) 1970/01/01 00:12:41 fetching corpus: 1936, signal 61348/65468 (executing program) 1970/01/01 00:12:43 fetching corpus: 1986, signal 61585/65468 (executing program) 1970/01/01 00:12:45 fetching corpus: 2034, signal 61843/65468 (executing program) 1970/01/01 00:12:49 fetching corpus: 2084, signal 62101/65468 (executing program) 1970/01/01 00:12:52 fetching corpus: 2134, signal 62350/65468 (executing program) 1970/01/01 00:12:55 fetching corpus: 2184, signal 62592/65468 (executing program) 1970/01/01 00:12:58 fetching corpus: 2234, signal 62829/65468 (executing program) 1970/01/01 00:13:01 fetching corpus: 2284, signal 63039/65468 (executing program) 1970/01/01 00:13:03 fetching corpus: 2334, signal 63389/65470 (executing program) 1970/01/01 00:13:06 fetching corpus: 2384, signal 63865/65470 (executing program) 1970/01/01 00:13:09 fetching corpus: 2434, signal 64025/65470 (executing program) 1970/01/01 00:13:12 fetching corpus: 2484, signal 64683/65470 (executing program) 1970/01/01 00:13:15 fetching corpus: 2533, signal 64906/65470 (executing program) 1970/01/01 00:13:17 fetching corpus: 2583, signal 65089/65477 (executing program) 1970/01/01 00:13:20 fetching corpus: 2632, signal 65247/65483 (executing program) 1970/01/01 00:13:20 fetching corpus: 2637, signal 65358/65483 (executing program) 1970/01/01 00:13:20 fetching corpus: 2637, signal 65358/65483 (executing program) 1970/01/01 00:15:31 starting 2 fuzzer processes [ 977.442702][ T3018] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 978.805692][ T3018] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 978.905764][ T3019] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 979.379146][ T3019] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 995.685603][ T3018] hsr_slave_0: entered promiscuous mode [ 995.716351][ T3018] hsr_slave_1: entered promiscuous mode [ 998.691884][ T3019] hsr_slave_0: entered promiscuous mode [ 998.794384][ T3019] hsr_slave_1: entered promiscuous mode [ 998.851653][ T3019] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 998.857319][ T3019] Cannot create hsr debugfs directory [ 1014.254993][ T3019] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 1014.618338][ T3019] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 1014.867987][ T3019] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 1015.228389][ T3019] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 1019.561907][ T3018] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 1019.904773][ T3018] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 1020.468395][ T3018] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 1021.346969][ T3018] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 1044.521585][ T3019] 8021q: adding VLAN 0 to HW filter on device bond0 [ 1047.171812][ T3018] 8021q: adding VLAN 0 to HW filter on device bond0 [ 1170.752765][ T11] hsr_slave_0: left promiscuous mode [ 1170.912608][ T11] hsr_slave_1: left promiscuous mode [ 1187.310989][ C0] Insufficient stack space to handle exception! [ 1187.315176][ C0] [ 1187.315364][ C0] ====================================================== [ 1187.315479][ C0] WARNING: possible circular locking dependency detected [ 1187.315731][ C0] 6.8.0-rc1-syzkaller-00017-gd82f32202e0d #0 Not tainted [ 1187.316272][ C0] ------------------------------------------------------ [ 1187.316402][ C0] syz-fuzzer/3003 is trying to acquire lock: [ 1187.316786][ C0] ffffffff87694ae0 (console_owner){-.-.}-{0:0}, at: console_flush_all+0x49e/0xca0 [ 1187.318794][ C0] [ 1187.318794][ C0] but task is already holding lock: [ 1187.318912][ C0] ff6000007ccfc018 (&rq->__lock){-.-.}-{2:2}, at: scheduler_tick+0xf8/0x3c2 [ 1187.319911][ C0] [ 1187.319911][ C0] which lock already depends on the new lock. [ 1187.319911][ C0] [ 1187.320024][ C0] [ 1187.320024][ C0] the existing dependency chain (in reverse order) is: [ 1187.320197][ C0] [ 1187.320197][ C0] -> #4 (&rq->__lock){-.-.}-{2:2}: [ 1187.320883][ C0] lock_acquire+0x35c/0x9c2 [ 1187.321559][ C0] _raw_spin_lock_nested+0x36/0x4e [ 1187.322363][ C0] raw_spin_rq_lock_nested+0x22/0x34 [ 1187.322716][ C0] task_fork_fair+0xba/0x16e [ 1187.323076][ C0] sched_cgroup_fork+0x3de/0x550 [ 1187.323486][ C0] copy_process+0x47de/0x6b54 [ 1187.323842][ C0] kernel_clone+0x11e/0xa16 [ 1187.324176][ C0] user_mode_thread+0xea/0x11a [ 1187.324483][ C0] rest_init+0x34/0x2dc [ 1187.324910][ C0] arch_post_acpi_subsys_init+0x0/0x30 [ 1187.325458][ C0] console_on_rootfs+0x0/0x96 [ 1187.326056][ C0] [ 1187.326056][ C0] -> #3 (&p->pi_lock){-.-.}-{2:2}: [ 1187.326616][ C0] lock_acquire+0x35c/0x9c2 [ 1187.327026][ C0] _raw_spin_lock_irqsave+0x3e/0x62 [ 1187.327474][ C0] try_to_wake_up+0xa0/0x1744 [ 1187.327973][ C0] default_wake_function+0x28/0x4c [ 1187.328459][ C0] woken_wake_function+0x38/0x64 [ 1187.328868][ C0] __wake_up_common+0x106/0x184 [ 1187.329234][ C0] __wake_up+0x32/0x58 [ 1187.329658][ C0] tty_wakeup+0x60/0xfc [ 1187.330125][ C0] tty_port_default_wakeup+0x2c/0x44 [ 1187.330527][ C0] tty_port_tty_wakeup+0x52/0x72 [ 1187.330893][ C0] uart_write_wakeup+0x40/0x5e [ 1187.331227][ C0] serial8250_tx_chars+0x590/0x7e4 [ 1187.331712][ C0] serial8250_handle_irq+0x526/0x69c [ 1187.332230][ C0] serial8250_default_handle_irq+0x8c/0x1c6 [ 1187.332713][ C0] serial8250_interrupt+0xd8/0x1ec [ 1187.333171][ C0] __handle_irq_event_percpu+0x24a/0x87a [ 1187.333645][ C0] handle_irq_event+0xb4/0x1ec [ 1187.334086][ C0] handle_fasteoi_irq+0x306/0xc84 [ 1187.334404][ C0] generic_handle_domain_irq+0x84/0xb2 [ 1187.334841][ C0] plic_handle_irq+0x16e/0x360 [ 1187.335295][ C0] generic_handle_domain_irq+0x84/0xb2 [ 1187.335727][ C0] riscv_intc_irq+0x70/0xa6 [ 1187.336164][ C0] handle_riscv_irq+0x2e/0x4c [ 1187.336631][ C0] call_on_irq_stack+0x32/0x40 [ 1187.337177][ C0] [ 1187.337177][ C0] -> #2 (&tty->write_wait){-.-.}-{2:2}: [ 1187.337805][ C0] lock_acquire+0x35c/0x9c2 [ 1187.338221][ C0] _raw_spin_lock_irqsave+0x3e/0x62 [ 1187.338649][ C0] __wake_up+0x22/0x58 [ 1187.339056][ C0] tty_wakeup+0x60/0xfc [ 1187.339491][ C0] tty_port_default_wakeup+0x2c/0x44 [ 1187.339897][ C0] tty_port_tty_wakeup+0x52/0x72 [ 1187.340277][ C0] uart_write_wakeup+0x40/0x5e [ 1187.340616][ C0] serial8250_tx_chars+0x590/0x7e4 [ 1187.341136][ C0] serial8250_handle_irq+0x526/0x69c [ 1187.341675][ C0] serial8250_default_handle_irq+0x8c/0x1c6 [ 1187.342228][ C0] serial8250_interrupt+0xd8/0x1ec [ 1187.342627][ C0] __handle_irq_event_percpu+0x24a/0x87a [ 1187.343067][ C0] handle_irq_event+0xb4/0x1ec [ 1187.343499][ C0] handle_fasteoi_irq+0x306/0xc84 [ 1187.343832][ C0] generic_handle_domain_irq+0x84/0xb2 [ 1187.344235][ C0] plic_handle_irq+0x16e/0x360 [ 1187.344685][ C0] generic_handle_domain_irq+0x84/0xb2 [ 1187.345120][ C0] riscv_intc_irq+0x70/0xa6 [ 1187.345577][ C0] handle_riscv_irq+0x2e/0x4c [ 1187.346056][ C0] call_on_irq_stack+0x32/0x40 [ 1187.346597][ C0] [ 1187.346597][ C0] -> #1 (&port_lock_key){-.-.}-{2:2}: [ 1187.347171][ C0] lock_acquire+0x35c/0x9c2 [ 1187.347570][ C0] _raw_spin_lock_irqsave+0x3e/0x62 [ 1187.348050][ C0] serial8250_console_write+0x56a/0xe48 [ 1187.348588][ C0] univ8250_console_write+0x66/0x7e [ 1187.349028][ C0] console_flush_all+0x516/0xca0 [ 1187.349388][ C0] console_unlock+0x13c/0x27c [ 1187.349784][ C0] vprintk_emit+0x198/0x668 [ 1187.350129][ C0] vprintk_default+0x26/0x32 [ 1187.350476][ C0] vprintk+0x220/0x26e [ 1187.350852][ C0] _printk+0x98/0xc0 [ 1187.351200][ C0] register_console+0x85e/0xe86 [ 1187.351606][ C0] serial_core_register_port+0x18bc/0x194c [ 1187.352034][ C0] serial_ctrl_register_port+0x20/0x2c [ 1187.352445][ C0] uart_add_one_port+0x20/0x2c [ 1187.352874][ C0] serial8250_register_8250_port+0x1090/0x1c66 [ 1187.353316][ C0] of_platform_serial_probe+0x846/0xc32 [ 1187.353706][ C0] platform_probe+0xfa/0x1e8 [ 1187.354158][ C0] really_probe+0x234/0xbbc [ 1187.354456][ C0] __driver_probe_device+0x1d4/0x458 [ 1187.354833][ C0] driver_probe_device+0x60/0x1ce [ 1187.355186][ C0] __driver_attach+0x250/0x4ee [ 1187.355517][ C0] bus_for_each_dev+0x124/0x1ba [ 1187.355830][ C0] driver_attach+0x3e/0x52 [ 1187.356156][ C0] bus_add_driver+0x2a4/0x594 [ 1187.356461][ C0] driver_register+0x18e/0x3ee [ 1187.356824][ C0] __platform_driver_register+0x5e/0x7e [ 1187.357267][ C0] of_platform_serial_driver_init+0x22/0x2a [ 1187.357707][ C0] do_one_initcall+0x194/0x90c [ 1187.358030][ C0] kernel_init_freeable+0x686/0x72a [ 1187.358528][ C0] kernel_init+0x28/0x21c [ 1187.358826][ C0] ret_from_fork+0xe/0x1c [ 1187.359300][ C0] [ 1187.359300][ C0] -> #0 (console_owner){-.-.}-{0:0}: [ 1187.359861][ C0] check_noncircular+0x2b6/0x350 [ 1187.360301][ C0] __lock_acquire+0x2b86/0x784c [ 1187.360717][ C0] lock_acquire+0x35c/0x9c2 [ 1187.361109][ C0] console_flush_all+0x4f8/0xca0 [ 1187.361512][ C0] console_unlock+0x13c/0x27c [ 1187.361896][ C0] vprintk_emit+0x198/0x668 [ 1187.362268][ C0] vprintk_default+0x26/0x32 [ 1187.362603][ C0] vprintk+0x220/0x26e [ 1187.362940][ C0] _printk+0x98/0xc0 [ 1187.363261][ C0] handle_bad_stack+0x96/0xf4 [ 1187.363642][ C0] lock_acquire+0x44c/0x9c2 [ 1187.364080][ C0] [ 1187.364080][ C0] other info that might help us debug this: [ 1187.364080][ C0] [ 1187.364258][ C0] Chain exists of: [ 1187.364258][ C0] console_owner --> &p->pi_lock --> &rq->__lock [ 1187.364258][ C0] [ 1187.364948][ C0] Possible unsafe locking scenario: [ 1187.364948][ C0] [ 1187.365042][ C0] CPU0 CPU1 [ 1187.365134][ C0] ---- ---- [ 1187.365245][ C0] lock(&rq->__lock); [ 1187.365539][ C0] lock(&p->pi_lock); [ 1187.365814][ C0] lock(&rq->__lock); [ 1187.366120][ C0] lock(console_owner); [ 1187.366377][ C0] [ 1187.366377][ C0] *** DEADLOCK *** [ 1187.366377][ C0] [ 1187.366559][ C0] 11 locks held by syz-fuzzer/3003: [ 1187.366823][ C0] #0: ffffffff87780680 (rcu_read_lock){....}-{1:2}, at: netif_receive_skb_list_internal+0x33c/0xc12 [ 1187.367894][ C0] #1: ffffffff87780680 (rcu_read_lock){....}-{1:2}, at: ip_local_deliver_finish+0x1e2/0x536 [ 1187.368867][ C0] #2: ff600000159aa570 (slock-AF_INET/1){+.-.}-{2:2}, at: tcp_v4_rcv+0x34ae/0x3b0a [ 1187.369967][ C0] #3: ffffffff87780680 (rcu_read_lock){....}-{1:2}, at: __ip_queue_xmit+0x52/0x1ed2 [ 1187.370933][ C0] #4: ffffffff87780680 (rcu_read_lock){....}-{1:2}, at: ip_finish_output2+0x444/0x2b10 [ 1187.371902][ C0] #5: ffffffff877806e0 (rcu_read_lock_bh){....}-{1:2}, at: __dev_queue_xmit+0x256/0x4428 [ 1187.372762][ C0] #6: ff60000011a32258 (dev->qdisc_tx_busylock ?: &qdisc_tx_busylock){+...}-{2:2}, at: __dev_queue_xmit+0x134c/0x4428 [ 1187.373732][ C0] #7: ff6000000bad7cd8 (_xmit_ETHER#2){+.-.}-{2:2}, at: sch_direct_xmit+0x302/0x51c [ 1187.374797][ C0] #8: ff6000007ccfc018 (&rq->__lock){-.-.}-{2:2}, at: scheduler_tick+0xf8/0x3c2 [ 1187.375850][ C0] #9: ffffffff87694820 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x178/0x668 [ 1187.376809][ C0] #10: ffffffff87694970 (console_srcu){....}-{0:0}, at: console_flush_all+0x110/0xca0 [ 1187.378216][ C0] [ 1187.378216][ C0] stack backtrace: [ 1187.378719][ C0] CPU: 0 PID: 3003 Comm: syz-fuzzer Not tainted 6.8.0-rc1-syzkaller-00017-gd82f32202e0d #0 [ 1187.379182][ C0] Hardware name: riscv-virtio,qemu (DT) [ 1187.379701][ C0] Call Trace: [ 1187.379917][ C0] [] dump_backtrace+0x2e/0x3c [ 1187.380495][ C0] [] show_stack+0x34/0x40 [ 1187.380859][ C0] [] dump_stack_lvl+0xe8/0x154 [ 1187.381449][ C0] [] dump_stack+0x1c/0x24 [ 1187.381959][ C0] [] print_circular_bug+0x692/0x718 [ 1187.382420][ C0] [] check_noncircular+0x2b6/0x350 [ 1187.382846][ C0] [] __lock_acquire+0x2b86/0x784c [ 1187.383276][ C0] [] lock_acquire+0x35c/0x9c2 [ 1187.383712][ C0] [] console_flush_all+0x4f8/0xca0 [ 1187.384107][ C0] [] console_unlock+0x13c/0x27c [ 1187.384507][ C0] [] vprintk_emit+0x198/0x668 [ 1187.384911][ C0] [] vprintk_default+0x26/0x32 [ 1187.385337][ C0] [] vprintk+0x220/0x26e [ 1187.385754][ C0] [] _printk+0x98/0xc0 [ 1187.386136][ C0] [] handle_bad_stack+0x96/0xf4 [ 1187.386609][ C0] [] lock_acquire+0x44c/0x9c2 [ 1187.577321][ C0] Task stack: [0xff20000004408000..0xff2000000440c000] [ 1187.579188][ C0] Overflow stack: [0xff6000007cce8070..0xff6000007cce9070] [ 1187.580995][ C0] CPU: 0 PID: 3003 Comm: syz-fuzzer Not tainted 6.8.0-rc1-syzkaller-00017-gd82f32202e0d #0 [ 1187.583722][ C0] Hardware name: riscv-virtio,qemu (DT) [ 1187.585066][ C0] epc : rcu_is_watching+0xe/0x15e [ 1187.586955][ C0] ra : lock_acquire+0x44c/0x9c2 [ 1187.588947][ C0] epc : ffffffff8027fcbe ra : ffffffff8021e1b6 sp : ff1fffffffffffe0 [ 1187.591156][ C0] gp : ffffffff8863e360 tp : 0000000000000000 t0 : 0319389ccb94a62e [ 1187.593423][ C0] t1 : ffe3ffff0000000c t2 : 0000000000000000 s0 : ff20000000000170 [ 1187.595497][ C0] s1 : 1fe400000000000c a0 : ff60000016620008 a1 : 0000000000000000 [ 1187.597445][ C0] a2 : 0000000000000001 a3 : 0000000000000000 a4 : 1ffffffff10cd2c8 [ 1187.599380][ C0] a5 : ffffffffdfffffff a6 : ffffffff807f82d8 a7 : fffffffff3f3f3f3 [ 1187.601294][ C0] s2 : 0000000000000000 s3 : 0000000000000001 s4 : 0000000000000001 [ 1187.603145][ C0] s5 : ff6000007cd00d58 s6 : 0000000000000000 s7 : ffffffff807f82d8 [ 1187.605078][ C0] s8 : 0000000000000000 s9 : ff20000000000100 s10: 0000000000000000 [ 1187.606920][ C0] s11: ffffffff88669640 t3 : ffffffff8021dd6a t4 : ffe3ffff0000001c [ 1187.608533][ C0] t5 : ffe3ffff0000001d t6 : 1fe40000000000a9 [ 1187.610837][ C0] status: 0000000200000100 badaddr: ff1ffffffffffff8 cause: 000000000000000f [ 1187.612704][ C0] Kernel panic - not syncing: Kernel stack overflow [ 1187.615091][ C0] CPU: 0 PID: 3003 Comm: syz-fuzzer Not tainted 6.8.0-rc1-syzkaller-00017-gd82f32202e0d #0 [ 1187.617620][ C0] Hardware name: riscv-virtio,qemu (DT) [ 1187.618639][ C0] Call Trace: [ 1187.619806][ C0] [] dump_backtrace+0x2e/0x3c [ 1187.621686][ C0] [] show_stack+0x34/0x40 [ 1187.623307][ C0] [] dump_stack_lvl+0xe8/0x154 [ 1187.624661][ C0] [] dump_stack+0x1c/0x24 [ 1187.626614][ C0] [] panic+0x33c/0x77a [ 1187.628072][ C0] [] handle_bad_stack+0xe0/0xf4 [ 1187.630293][ C0] [] lock_acquire+0x44c/0x9c2 [ 1187.633492][ C0] SMP: stopping secondary CPUs [ 1189.829884][ C0] SMP: failed to stop secondary CPUs 0-1 [ 1189.833589][ C0] Rebooting in 86400 seconds.. VM DIAGNOSIS: 23:11:50 Registers: info registers vcpu 0 CPU#0 V = 0 pc ffffffff80224f38 mhartid 0000000000000000 mstatus 0000000a000001a0 hstatus 0000000200000000 vsstatus 0000000a00000000 mip 0000000000000020 mie 000000000000022a mideleg 0000000000001666 hideleg 0000000000000000 medeleg 0000000000f0b509 hedeleg 0000000000000000 mtvec 0000000080000408 stvec ffffffff85929260 vstvec 0000000000000000 mepc ffffffff8001d200 sepc ffffffff85909ce2 vsepc 0000000000000000 mcause 0000000000000009 scause 8000000000000005 vscause 0000000000000000 mtval 0000000000000000 stval 0000000000000000 htval 0000000000000000 mtval2 0000000000000000 mscratch 0000000080036000 sscratch 0000000000000000 satp a012d00000091f94 x0/zero 0000000000000000 x1/ra ffffffff80224edc x2/sp ff2000000000b980 x3/gp ffffffff8863e360 x4/tp ff6000000eb84e00 x5/t0 1fac189c24ea0ad0 x6/t1 ffebffff0f99f800 x7/t2 ff6000000eb858f8 x8/s0 ff2000000000b9e0 x9/s1 ff6000007ccfc000 x10/a0 0000000000000001 x11/a1 0000000000000004 x12/a2 0000000000000001 x13/a3 ffffffff80224edc x14/a4 0000000000000000 x15/a5 ffffffffffffffff x16/a6 ffebffff0f99f801 x17/a7 ff6000007ccfc003 x18/s2 ffebffff0f99f800 x19/s3 ff6000007ccfc010 x20/s4 0000000000000000 x21/s5 ff6000007ccfc008 x22/s6 1fec00000f99f802 x23/s7 0000000000000003 x24/s8 00000000000085cd x25/s9 1fec00000f99f801 x26/s10 1fec00000f99f800 x27/s11 ff2000000000bbe8 x28/t3 0000000000000004 x29/t4 ffebffff0f99f800 x30/t5 ffebffff0f99f801 x31/t6 1fec000001d70b32 f0/ft0 0000000000000000 f1/ft1 0000000000000000 f2/ft2 0000000000000000 f3/ft3 0000000000000000 f4/ft4 0000000000000000 f5/ft5 0000000000000000 f6/ft6 0000000000000000 f7/ft7 0000000000000000 f8/fs0 0000000000000000 f9/fs1 0000000000000000 f10/fa0 0000000000000000 f11/fa1 0000000000000000 f12/fa2 0000000000000000 f13/fa3 0000000000000000 f14/fa4 0000000000000000 f15/fa5 0000000000000000 f16/fa6 0000000000000000 f17/fa7 0000000000000000 f18/fs2 0000000000000000 f19/fs3 0000000000000000 f20/fs4 0000000000000000 f21/fs5 0000000000000000 f22/fs6 0000000000000000 f23/fs7 0000000000000000 f24/fs8 0000000000000000 f25/fs9 0000000000000000 f26/fs10 0000000000000000 f27/fs11 0000000000000000 f28/ft8 0000000000000000 f29/ft9 0000000000000000 f30/ft10 0000000000000000 f31/ft11 0000000000000000 info registers vcpu 1 CPU#1 V = 0 pc ffffffff81939d18 mhartid 0000000000000001 mstatus 0000000a00000180 hstatus 0000000200000000 vsstatus 0000000a00000000 mip 0000000000000000 mie 000000000000022a mideleg 0000000000001666 hideleg 0000000000000000 medeleg 0000000000f0b509 hedeleg 0000000000000000 mtvec 0000000080000408 stvec ffffffff85929260 vstvec 0000000000000000 mepc ffffffff803d0594 sepc ffffffff8027fcbe vsepc 0000000000000000 mcause 8000000000000003 scause 000000000000000f vscause 0000000000000000 mtval 0000000000000000 stval ff1ffffffffffff8 htval 0000000000000000 mtval2 0000000000000000 mscratch 0000000080034000 sscratch 0000000000000000 satp a013100000098637 x0/zero 0000000000000000 x1/ra ffffffff81939d18 x2/sp ff6000007cce8910 x3/gp ffffffff8863e360 x4/tp ff60000016620000 x5/t0 2d00000000000000 x6/t1 fffffffef1498f38 x7/t2 2d2d2d2d2d2d2d2d x8/s0 ff6000007cce8940 x9/s1 000000000000002d x10/a0 ffffffff8a4c7a08 x11/a1 0000000000000000 x12/a2 000000000000002d x13/a3 ffffffff81939d18 x14/a4 1ffffffff1498f41 x15/a5 ff20000000095000 x16/a6 0000000000ff0100 x17/a7 ffffffff8a4c79c3 x18/s2 ffffffff8a4c79c0 x19/s3 ff20000000095000 x20/s4 ffffffff8a4c79c0 x21/s5 ffffffff81939cfc x22/s6 0000000000000000 x23/s7 ffffffff8a31170e x24/s8 dfffffff00000000 x25/s9 fffffffef1498f43 x26/s10 0000000000000010 x27/s11 0000000000000010 x28/t3 ffffffff8021dd6a x29/t4 fffffffef1498f38 x30/t5 fffffffef1498f39 x31/t6 ffffffff8a3116d7 f0/ft0 0000000000000000 f1/ft1 40b008e8c391bea5 f2/ft2 413c997800000000 f3/ft3 403a000000000000 f4/ft4 4129e5bc00000000 f5/ft5 4039fa2f045e7833 f6/ft6 0000000000000000 f7/ft7 0000000000000000 f8/fs0 0000000000000000 f9/fs1 0000000000000000 f10/fa0 0000000000000000 f11/fa1 0000000000000000 f12/fa2 0000000000000000 f13/fa3 0000000000000000 f14/fa4 0000000000000000 f15/fa5 0000000000000000 f16/fa6 0000000000000000 f17/fa7 0000000000000000 f18/fs2 0000000000000000 f19/fs3 0000000000000000 f20/fs4 0000000000000000 f21/fs5 0000000000000000 f22/fs6 0000000000000000 f23/fs7 0000000000000000 f24/fs8 0000000000000000 f25/fs9 0000000000000000 f26/fs10 0000000000000000 f27/fs11 0000000000000000 f28/ft8 0000000000000000 f29/ft9 0000000000000000 f30/ft10 0000000000000000 f31/ft11 0000000000000000