[ 9.358853][ T2614] 8021q: adding VLAN 0 to HW filter on device bond0 [ 9.366294][ T2614] eql: remember to turn off Van-Jacobson compression on your slave devices [ 9.390790][ T1015] gvnic 0000:00:00.0 enp0s0: Device link is up. [ 9.392403][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s0: link becomes ready Starting sshd: OK syzkaller syzkaller login: [ 69.614417][ T2468] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.0.103' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 714.733534][ T26] INFO: task syz-executor276:3074 blocked for more than 143 seconds. [ 714.735651][ T26] Not tainted 6.0.0-rc6-syzkaller-17742-gc194837ebb57 #0 [ 714.737560][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 714.739716][ T26] task:syz-executor276 state:D stack: 0 pid: 3074 ppid: 3065 flags:0x00000001 [ 714.741967][ T26] Call trace: [ 714.742762][ T26] __switch_to+0x180/0x298 [ 714.744235][ T26] __schedule+0x414/0x5a0 [ 714.745598][ T26] schedule+0x64/0xa4 [ 714.746580][ T26] rwsem_down_write_slowpath+0x258/0x468 [ 714.747952][ T26] down_write+0x88/0xcc [ 714.748964][ T26] blkdev_fallocate+0x148/0x258 [ 714.750146][ T26] vfs_fallocate+0x328/0x38c [ 714.751270][ T26] __arm64_sys_fallocate+0x5c/0xac [ 714.752864][ T26] el0_svc_common+0x138/0x220 [ 714.754406][ T26] do_el0_svc+0x48/0x164 [ 714.755758][ T26] el0_svc+0x58/0x150 [ 714.757050][ T26] el0t_64_sync_handler+0x84/0xf0 [ 714.758608][ T26] el0t_64_sync+0x18c/0x190 [ 714.760344][ T26] INFO: task syz-executor276:3075 blocked for more than 143 seconds. [ 714.762370][ T26] Not tainted 6.0.0-rc6-syzkaller-17742-gc194837ebb57 #0 [ 714.764213][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 714.766731][ T26] task:syz-executor276 state:D stack: 0 pid: 3075 ppid: 3071 flags:0x00000001 [ 714.769406][ T26] Call trace: [ 714.770554][ T26] __switch_to+0x180/0x298 [ 714.772062][ T26] __schedule+0x414/0x5a0 [ 714.773502][ T26] schedule+0x64/0xa4 [ 714.774816][ T26] rwsem_down_write_slowpath+0x258/0x468 [ 714.776561][ T26] down_write+0x88/0xcc [ 714.777936][ T26] blkdev_fallocate+0x148/0x258 [ 714.779106][ T26] vfs_fallocate+0x328/0x38c [ 714.780219][ T26] __arm64_sys_fallocate+0x5c/0xac [ 714.781453][ T26] el0_svc_common+0x138/0x220 [ 714.782587][ T26] do_el0_svc+0x48/0x164 [ 714.783712][ T26] el0_svc+0x58/0x150 [ 714.784998][ T26] el0t_64_sync_handler+0x84/0xf0 [ 714.786568][ T26] el0t_64_sync+0x18c/0x190 [ 714.787994][ T26] INFO: task syz-executor276:3076 blocked for more than 143 seconds. [ 714.790326][ T26] Not tainted 6.0.0-rc6-syzkaller-17742-gc194837ebb57 #0 [ 714.792536][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 714.795060][ T26] task:syz-executor276 state:D stack: 0 pid: 3076 ppid: 3064 flags:0x00000001 [ 714.797546][ T26] Call trace: [ 714.798664][ T26] __switch_to+0x180/0x298 [ 714.799732][ T26] __schedule+0x414/0x5a0 [ 714.800669][ T26] schedule+0x64/0xa4 [ 714.801527][ T26] rwsem_down_write_slowpath+0x258/0x468 [ 714.802890][ T26] down_write+0x88/0xcc [ 714.804031][ T26] blkdev_fallocate+0x148/0x258 [ 714.805518][ T26] vfs_fallocate+0x328/0x38c [ 714.806969][ T26] __arm64_sys_fallocate+0x5c/0xac [ 714.808556][ T26] el0_svc_common+0x138/0x220 [ 714.810042][ T26] do_el0_svc+0x48/0x164 [ 714.811422][ T26] el0_svc+0x58/0x150 [ 714.812716][ T26] el0t_64_sync_handler+0x84/0xf0 [ 714.814338][ T26] el0t_64_sync+0x18c/0x190 [ 714.815817][ T26] [ 714.815817][ T26] Showing all locks held in the system: [ 714.817698][ T26] 1 lock held by rcu_tasks_kthre/10: [ 714.819011][ T26] #0: ffff80000d433568 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x3c/0x450 [ 714.821910][ T26] 1 lock held by rcu_tasks_trace/11: [ 714.823615][ T26] #0: ffff80000d433bb8 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x3c/0x450 [ 714.826745][ T26] 1 lock held by khungtaskd/26: [ 714.828241][ T26] #0: ffff80000d433440 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x4/0x48 [ 714.830982][ T26] 2 locks held by getty/2717: [ 714.832464][ T26] #0: ffff0000c72c9098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x28/0x58 [ 714.835380][ T26] #1: ffff80000f60e2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x19c/0x89c [ 714.838253][ T26] 1 lock held by syz-executor276/3073: [ 714.839563][ T26] 1 lock held by syz-executor276/3074: [ 714.840889][ T26] #0: ffff0000c565dcd0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x148/0x258 [ 714.843552][ T26] 1 lock held by syz-executor276/3075: [ 714.845256][ T26] #0: ffff0000c565dcd0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x148/0x258 [ 714.848302][ T26] 1 lock held by syz-executor276/3076: [ 714.849955][ T26] #0: ffff0000c565dcd0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x148/0x258 [ 714.852956][ T26] 1 lock held by syz-executor276/3084: [ 714.854773][ T26] #0: ffff0000c565dcd0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x148/0x258 [ 714.857830][ T26] 1 lock held by syz-executor276/3085: [ 714.859500][ T26] #0: ffff0000c565dcd0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x148/0x258 [ 714.862581][ T26] [ 714.863137][ T26] ============================================= [ 714.863137][ T26] [ 714.865354][ T26] Kernel panic - not syncing: hung_task: blocked tasks [ 714.867012][ T26] CPU: 1 PID: 26 Comm: khungtaskd Not tainted 6.0.0-rc6-syzkaller-17742-gc194837ebb57 #0 [ 714.869437][ T26] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 [ 714.871999][ T26] Call trace: [ 714.872824][ T26] dump_backtrace+0x1c4/0x1f0 [ 714.874029][ T26] show_stack+0x2c/0x54 [ 714.875109][ T26] dump_stack_lvl+0x104/0x16c [ 714.876318][ T26] dump_stack+0x1c/0x58 [ 714.877401][ T26] panic+0x218/0x50c [ 714.878408][ T26] hung_task_panic+0x0/0x2c [ 714.879574][ T26] kthread+0x12c/0x158 [ 714.880625][ T26] ret_from_fork+0x10/0x20 [ 714.881812][ T26] SMP: stopping secondary CPUs [ 714.883086][ T26] Kernel Offset: disabled [ 714.884193][ T26] CPU features: 0x00000,02070084,26017203 [ 714.885673][ T26] Memory Limit: none [ 715.030899][ T26] Rebooting in 86400 seconds..