./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3479659005 <...> Warning: Permanently added '10.128.1.57' (ED25519) to the list of known hosts. execve("./syz-executor3479659005", ["./syz-executor3479659005"], 0x7ffd09c133f0 /* 10 vars */) = 0 brk(NULL) = 0x555556173000 brk(0x555556173d00) = 0x555556173d00 arch_prctl(ARCH_SET_FS, 0x555556173380) = 0 set_tid_address(0x555556173650) = 5069 set_robust_list(0x555556173660, 24) = 0 rseq(0x555556173ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3479659005", 4096) = 28 getrandom("\xfb\x44\x26\x9a\x17\xb2\x66\xf8", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556173d00 brk(0x555556194d00) = 0x555556194d00 brk(0x555556195000) = 0x555556195000 mprotect(0x7fcd5a4fe000, 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/4:1", O_RDWR) = 3 ioctl(3, TIOCSETD, [21]) = 0 openat(AT_FDCWD, "/dev/char/4:1", O_RDWR) = 4 [ 88.336016][ T5069] BUG: sleeping function called from invalid context at kernel/printk/printk.c:2634 [ 88.345450][ T5069] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 5069, name: syz-executor347 [ 88.354921][ T5069] preempt_count: 1, expected: 0 [ 88.359772][ T5069] RCU nest depth: 0, expected: 0 [ 88.364728][ T5069] INFO: lockdep is turned off. [ 88.369508][ T5069] irq event stamp: 0 [ 88.373396][ T5069] hardirqs last enabled at (0): [<0000000000000000>] 0x0 [ 88.380536][ T5069] hardirqs last disabled at (0): [] copy_process+0x23ea/0x9770 [ 88.389691][ T5069] softirqs last enabled at (0): [] copy_process+0x244c/0x9770 [ 88.398843][ T5069] softirqs last disabled at (0): [<0000000000000000>] 0x0 [ 88.406071][ T5069] Preemption disabled at: [ 88.406082][ T5069] [<0000000000000000>] 0x0 [ 88.414890][ T5069] CPU: 0 PID: 5069 Comm: syz-executor347 Not tainted 6.7.0-next-20240109-syzkaller #0 [ 88.424544][ T5069] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 88.434712][ T5069] Call Trace: [ 88.438006][ T5069] [ 88.440949][ T5069] dump_stack_lvl+0xd9/0x1b0 [ 88.445591][ T5069] __might_resched+0x3bc/0x5d0 [ 88.450385][ T5069] ? preempt_count_sub+0x160/0x160 [ 88.455528][ T5069] ? rcu_is_watching+0x12/0xb0 [ 88.460325][ T5069] console_lock+0x34/0x150 [ 88.464778][ T5069] do_con_write+0x145/0x7f40 [ 88.469388][ T5069] ? rcu_is_watching+0x12/0xb0 [ 88.474201][ T5069] ? rcu_is_watching+0x12/0xb0 [ 88.478992][ T5069] ? lock_release+0x4c8/0x6a0 [ 88.483686][ T5069] ? lock_sync+0x190/0x190 [ 88.488149][ T5069] ? __might_fault+0x13b/0x190 [ 88.493018][ T5069] ? reacquire_held_locks+0x4c0/0x4c0 [ 88.498416][ T5069] ? preempt_count_sub+0x160/0x160 [ 88.503656][ T5069] ? aa_file_perm+0x4f2/0x1000 [ 88.508541][ T5069] ? reset_palette+0x2a0/0x2a0 [ 88.513359][ T5069] ? rcu_is_watching+0x12/0xb0 [ 88.518156][ T5069] ? lock_acquire+0x477/0x530 [ 88.522857][ T5069] ? lock_sync+0x190/0x190 [ 88.527293][ T5069] ? do_raw_spin_lock+0x12d/0x2b0 [ 88.532341][ T5069] ? spin_bug+0x1c0/0x1c0 [ 88.536695][ T5069] con_write+0x23/0xb0 [ 88.540785][ T5069] gsmld_write+0xd0/0x150 [ 88.545149][ T5069] ? gsm_dlci_copy_config_values+0x300/0x300 [ 88.551172][ T5069] file_tty_write.constprop.0+0x518/0x9a0 [ 88.556948][ T5069] vfs_write+0x64d/0xdf0 [ 88.561915][ T5069] ? kernel_write+0x6c0/0x6c0 [ 88.566629][ T5069] ? rcu_is_watching+0x12/0xb0 [ 88.571532][ T5069] ? reacquire_held_locks+0x4c0/0x4c0 [ 88.576937][ T5069] ? __fget_light+0x172/0x200 [ 88.581753][ T5069] ksys_write+0x12f/0x250 [ 88.586129][ T5069] ? __ia32_sys_read+0xb0/0xb0 [ 88.590949][ T5069] ? _raw_spin_unlock_irq+0x2e/0x50 [ 88.596358][ T5069] ? ptrace_notify+0xf1/0x130 [ 88.601166][ T5069] do_syscall_64+0xd0/0x250 [ 88.605709][ T5069] entry_SYSCALL_64_after_hwframe+0x62/0x6a [ 88.611634][ T5069] RIP: 0033:0x7fcd5a48b569 [ 88.616065][ T5069] Code: 48 83 c4 28 c3 e8 37 17 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 write(4, NULL, 0) = 0 exit_group(0) = ? +++ exited with 0 +++ [ 88.635789][ T5