./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2726460068 <...> forked to background, child pid 3188 no interfaces have a carrier [ 26.585542][ T3189] 8021q: adding VLAN 0 to HW filter on device bond0 [ 26.602913][ T3189] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.76' (ECDSA) to the list of known hosts. execve("./syz-executor2726460068", ["./syz-executor2726460068"], 0x7ffea3ccadd0 /* 10 vars */) = 0 brk(NULL) = 0x55555679f000 brk(0x55555679fc40) = 0x55555679fc40 arch_prctl(ARCH_SET_FS, 0x55555679f300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2726460068", 4096) = 28 brk(0x5555567c0c40) = 0x5555567c0c40 brk(0x5555567c1000) = 0x5555567c1000 mprotect(0x7fc136c61000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 openat(AT_FDCWD, "/dev/char/2:21", O_RDWR) = 3 ioctl(3, TIOCSETD, [21]) = 0 syzkaller login: [ 42.527770][ T3617] INFO: trying to register non-static key. [ 42.533597][ T3617] The code is fine but needs lockdep annotation, or maybe [ 42.540680][ T3617] you didn't initialize this object before use? [ 42.546893][ T3617] turning off the locking correctness validator. [ 42.553193][ T3617] CPU: 0 PID: 3617 Comm: syz-executor272 Not tainted 6.0.0-rc1-next-20220819-syzkaller #0 [ 42.563065][ T3617] BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:1521 [ 42.572407][ T3617] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 3617, name: syz-executor272 [ 42.581841][ T3617] preempt_count: 1, expected: 0 [ 42.586677][ T3617] RCU nest depth: 0, expected: 0 [ 42.591595][ T3617] INFO: lockdep is turned off. [ 42.596332][ T3617] irq event stamp: 4716 [ 42.600460][ T3617] hardirqs last enabled at (4715): [] _raw_spin_unlock_irq+0x1f/0x40 [ 42.610170][ T3617] hardirqs last disabled at (4716): [] _raw_spin_lock_irqsave+0x4e/0x50 [ 42.620048][ T3617] softirqs last enabled at (4594): [] __irq_exit_rcu+0x123/0x180 [ 42.629421][ T3617] softirqs last disabled at (4561): [] __irq_exit_rcu+0x123/0x180 [ 42.638784][ T3617] Preemption disabled at: [ 42.638790][ T3617] [<0000000000000000>] 0x0 [ 42.647491][ T3617] CPU: 0 PID: 3617 Comm: syz-executor272 Not tainted 6.0.0-rc1-next-20220819-syzkaller #0 [ 42.657386][ T3617] syz-executor272[3617] cmdline: ./syz-executor2726460068 [ 42.664476][ T3617] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 42.674514][ T3617] Call Trace: [ 42.677797][ T3617] [ 42.680727][ T3617] dump_stack_lvl+0xcd/0x134 [ 42.685325][ T3617] __might_resched.cold+0x222/0x26b [ 42.690617][ T3617] down_read_killable+0x75/0x490 [ 42.695554][ T3617] ? down_read+0x450/0x450 [ 42.699968][ T3617] ? _prb_read_valid+0x5f6/0x710 [ 42.704906][ T3617] __access_remote_vm+0xac/0x6f0 [ 42.709834][ T3617] ? rcu_read_lock_sched_held+0xd/0x70 [ 42.715278][ T3617] ? lock_release+0x560/0x780 [ 42.719947][ T3617] ? follow_phys+0x2c0/0x2c0 [ 42.724539][ T3617] ? do_raw_spin_lock+0x120/0x2a0 [ 42.729557][ T3617] ? rwlock_bug.part.0+0x90/0x90 [ 42.734482][ T3617] ? lock_release+0x560/0x780 [ 42.739149][ T3617] ? __up_console_sem+0x47/0xc0 [ 42.743983][ T3617] get_mm_cmdline.part.0+0x217/0x620 [ 42.749255][ T3617] ? dname_to_vma_addr.isra.0+0x360/0x360 [ 42.754961][ T3617] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 42.760756][ T3617] get_task_cmdline_kernel+0x1d9/0x220 [ 42.766217][ T3617] dump_stack_print_cmdline.part.0+0x82/0x150 [ 42.772294][ T3617] ? _atomic_dec_and_lock_irqsave+0x150/0x150 [ 42.778371][ T3617] ? dump_stack_print_info+0xc6/0x190 [ 42.783746][ T3617] dump_stack_print_info+0x185/0x190 [ 42.789049][ T3617] dump_stack_lvl+0xc1/0x134 [ 42.793640][ T3617] register_lock_class+0xf1b/0x1120 [ 42.798830][ T3617] ? is_dynamic_key.part.0+0x130/0x130 [ 42.804283][ T3617] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 42.810267][ T3617] ? __lock_acquire+0xbc3/0x56d0 [ 42.815194][ T3617] __lock_acquire+0x109/0x56d0 [ 42.819950][ T3617] ? find_held_lock+0x2d/0x110 [ 42.824710][ T3617] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 42.830677][ T3617] ? lock_downgrade+0x6e0/0x6e0 [ 42.835513][ T3617] lock_acquire+0x1ab/0x570 [ 42.840003][ T3617] ? gsmld_write+0x5e/0x140 [ 42.844510][ T3617] ? lock_release+0x780/0x780 [ 42.849171][ T3617] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 42.855138][ T3617] ? _copy_mc_to_iter+0x1430/0x1430 [ 42.860330][ T3617] ? _raw_spin_lock_irqsave+0x4e/0x50 [ 42.865700][ T3617] _raw_spin_lock_irqsave+0x39/0x50 [ 42.870887][ T3617] ? gsmld_write+0x5e/0x140 [ 42.875379][ T3617] gsmld_write+0x5e/0x140 [ 42.879693][ T3617] file_tty_write.constprop.0+0x499/0x8f0 [ 42.885407][ T3617] ? gsmtty_tiocmget+0xd0/0xd0 [ 42.890243][ T3617] vfs_write+0x9e9/0xdd0 [ 42.894472][ T3617] ? vfs_read+0x930/0x930 [ 42.898788][ T3617] ? find_held_lock+0x2d/0x110 [ 42.903538][ T3617] ? lock_downgrade+0x6e0/0x6e0 [ 42.908390][ T3617] ? __fget_light+0x20a/0x270 [ 42.913071][ T3617] ksys_write+0x127/0x250 [ 42.917388][ T3617] ? __ia32_sys_read+0xb0/0xb0 [ 42.922135][ T3617] ? lockdep_hardirqs_on+0x79/0x100 [ 42.927325][ T3617] ? _raw_spin_unlock_irq+0x2a/0x40 [ 42.932521][ T3617] ? ptrace_notify+0xfa/0x140 [ 42.937192][ T3617] do_syscall_64+0x35/0xb0 [ 42.941605][ T3617] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 42.947490][ T3617] RIP: 0033:0x7fc136bf5289 [ 42.951899][ T3617] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 42.971500][ T3617] RSP: 002b:00007ffc832732f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 42.979902][ T3617] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc136bf5289 [ 42.987859][ T3617] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 42.995814][ T3617] RBP: 00007fc136bb9070 R08: 0000000000000000 R09: 0000000000000000 [ 43.003778][ T3617] R10: 000000000000000e R11: 0000000000000246 R12: 00007fc136bb9100 [ 43.011731][ T3617] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 43.019693][ T3617] [ 43.022710][ T3617] syz-executor272[3617] cmdline: ./syz-executor2726460068 [ 43.029795][ T3617] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 43.039830][ T3617] Call Trace: [ 43.043090][ T3617] [ 43.046005][ T3617] dump_stack_lvl+0xcd/0x134 [ 43.050593][ T3617] register_lock_class+0xf1b/0x1120 [ 43.055777][ T3617] ? is_dynamic_key.part.0+0x130/0x130 [ 43.061223][ T3617] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 43.067273][ T3617] ? __lock_acquire+0xbc3/0x56d0 [ 43.072206][ T3617] __lock_acquire+0x109/0x56d0 [ 43.076960][ T3617] ? find_held_lock+0x2d/0x110 [ 43.081706][ T3617] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 43.087676][ T3617] ? lock_downgrade+0x6e0/0x6e0 [ 43.092511][ T3617] lock_acquire+0x1ab/0x570 [ 43.096998][ T3617] ? gsmld_write+0x5e/0x140 [ 43.101500][ T3617] ? lock_release+0x780/0x780 [ 43.106161][ T3617] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 43.112138][ T3617] ? _copy_mc_to_iter+0x1430/0x1430 [ 43.117327][ T3617] ? _raw_spin_lock_irqsave+0x4e/0x50 [ 43.122695][ T3617] _raw_spin_lock_irqsave+0x39/0x50 [ 43.127889][ T3617] ? gsmld_write+0x5e/0x140 [ 43.132375][ T3617] gsmld_write+0x5e/0x140 [ 43.136693][ T3617] file_tty_write.constprop.0+0x499/0x8f0 [ 43.142412][ T3617] ? gsmtty_tiocmget+0xd0/0xd0 [ 43.147164][ T3617] vfs_write+0x9e9/0xdd0 [ 43.151401][ T3617] ? vfs_read+0x930/0x930 [ 43.155717][ T3617] ? find_held_lock+0x2d/0x110 [ 43.160554][ T3617] ? lock_downgrade+0x6e0/0x6e0 [ 43.165391][ T3617] ? __fget_light+0x20a/0x270 [ 43.170063][ T3617] ksys_write+0x127/0x250 [ 43.174379][ T3617] ? __ia32_sys_read+0xb0/0xb0 [ 43.179138][ T3617] ? lockdep_hardirqs_on+0x79/0x100 [ 43.184340][ T3617] ? _raw_spin_unlock_irq+0x2a/0x40 [ 43.189523][ T3617] ? ptrace_notify+0xfa/0x140 [ 43.194185][ T3617] do_syscall_64+0x35/0xb0 [ 43.198590][ T3617] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 43.204471][ T3617] RIP: 0033:0x7fc136bf5289 [ 43.208871][ T3617] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 write(3, NULL, 0) = 0 exit_group(0) = ? +++ exited with 0 +++ [ 43.228564][ T3617] RSP: