./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1277068190 <...> no interfaces have a carrier [ 59.172998][ T5484] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.195854][ T5484] eql: remember to turn off Van-Jacobson compression on your slave devices Starting crond: OK Starting sshd: OK syzkaller syzkaller login: [ 91.796586][ T9] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.0.43' (ED25519) to the list of known hosts. execve("./syz-executor1277068190", ["./syz-executor1277068190"], 0x7ffea765ac80 /* 10 vars */) = 0 brk(NULL) = 0x5555684ce000 brk(0x5555684cee00) = 0x5555684cee00 arch_prctl(ARCH_SET_FS, 0x5555684ce480) = 0 set_tid_address(0x5555684ce750) = 5844 set_robust_list(0x5555684ce760, 24) = 0 rseq(0x5555684ceda0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1277068190", 4096) = 28 getrandom("\x82\x28\x17\xcd\x1f\xf1\x5a\x19", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555684cee00 brk(0x5555684efe00) = 0x5555684efe00 brk(0x5555684f0000) = 0x5555684f0000 mprotect(0x7f8516774000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGSEGV, {sa_handler=0x7f85166b9d70, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f85166c2b20}, NULL, 8) = 0 rt_sigaction(SIGBUS, {sa_handler=0x7f85166b9d70, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f85166c2b20}, NULL, 8) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5846 attached [pid 5846] set_robust_list(0x5555684ce760, 24 [pid 5844] <... clone resumed>, child_tidptr=0x5555684ce750) = 5846 [pid 5846] <... set_robust_list resumed>) = 0 [pid 5846] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5846] setpgid(0, 0) = 0 [pid 5846] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5846] write(3, "1000", 4) = 4 [pid 5846] close(3) = 0 [pid 5846] write(1, "executing program\n", 18executing program ) = 18 [pid 5846] futex(0x7f851677a6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5846] rt_sigaction(SIGRT_1, {sa_handler=0x7f8516719010, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f85166c2b20}, NULL, 8) = 0 [pid 5846] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5846] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f8516687000 [pid 5846] mprotect(0x7f8516688000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5846] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5846] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f85166a7990, parent_tid=0x7f85166a7990, exit_signal=0, stack=0x7f8516687000, stack_size=0x20240, tls=0x7f85166a76c0}./strace-static-x86_64: Process 5847 attached [pid 5847] rseq(0x7f85166a7fe0, 0x20, 0, 0x53053053) = 0 [pid 5846] <... clone3 resumed> => {parent_tid=[5847]}, 88) = 5847 [pid 5847] set_robust_list(0x7f85166a79a0, 24 [pid 5846] rt_sigprocmask(SIG_SETMASK, [], [pid 5847] <... set_robust_list resumed>) = 0 [pid 5846] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5847] rt_sigprocmask(SIG_SETMASK, [], [pid 5846] futex(0x7f851677a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5847] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5846] <... futex resumed>) = 0 [pid 5847] memfd_create("syzkaller", 0 [pid 5846] futex(0x7f851677a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5847] <... memfd_create resumed>) = 3 [pid 5847] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f850e200000 [pid 5847] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 [pid 5847] munmap(0x7f850e200000, 138412032) = 0 [pid 5847] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5847] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5847] close(3) = 0 [pid 5847] close(4) = 0 [pid 5847] mkdir("./file2", 0777) = 0 [ 184.291666][ T5847] loop0: detected capacity change from 0 to 1024 [ 184.334501][ T5847] ======================================================= [ 184.334501][ T5847] WARNING: The mand mount option has been deprecated and [ 184.334501][ T5847] and is ignored by this kernel. Remove the mand [ 184.334501][ T5847] option from the mount to silence this warning. [ 184.334501][ T5847] ======================================================= [ 184.370956][ T5847] EXT4-fs: Ignoring removed oldalloc option [ 184.377350][ T5847] EXT4-fs: Ignoring removed orlov option [pid 5847] mount("/dev/loop0", "./file2", "ext4", MS_NOSUID|MS_NODEV|MS_MANDLOCK|MS_STRICTATIME|MS_LAZYTIME, "debug_want_extra_isize=0x0000000000000080,grpjquota=,oldalloc,errors=remount-ro,orlov,usrquota,strip"...) = 0 [pid 5847] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 5847] chdir("./file2") = 0 [pid 5847] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5847] futex(0x7f851677a6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [ 184.384382][ T5847] EXT4-fs (loop0): stripe (1570) is not aligned with cluster size (16), stripe is disabled [ 184.413198][ T5847] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [pid 5847] futex(0x7f851677a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5846] <... futex resumed>) = 0 [pid 5846] futex(0x7f851677a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5847] <... futex resumed>) = 0 [pid 5846] <... futex resumed>) = 1 [pid 5847] renameat2(AT_FDCWD, "./file0/file0", AT_FDCWD, "./file1", RENAME_WHITEOUT [pid 5846] futex(0x7f851677a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5847] <... renameat2 resumed>) = 0 [pid 5847] futex(0x7f851677a6ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5846] <... futex resumed>) = 0 [pid 5847] <... futex resumed>) = 1 [pid 5846] futex(0x7f851677a6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5847] mkdir("./bus", 0777 [pid 5846] futex(0x7f851677a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5847] <... mkdir resumed>) = 0 [pid 5847] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5847] futex(0x7f851677a6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5846] <... futex resumed>) = 0 [pid 5847] futex(0x7f851677a6a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5846] futex(0x7f851677a6a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5847] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5847] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5846] <... futex resumed>) = 0 [pid 5846] futex(0x7f851677a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 5846] futex(0x7f851677a6bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5846] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f8516666000 [pid 5846] mprotect(0x7f8516667000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5846] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5846] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f8516686990, parent_tid=0x7f8516686990, exit_signal=0, stack=0x7f8516666000, stack_size=0x20240, tls=0x7f85166866c0}./strace-static-x86_64: Process 5851 attached [pid 5851] rseq(0x7f8516686fe0, 0x20, 0, 0x53053053 [pid 5846] <... clone3 resumed> => {parent_tid=[5851]}, 88) = 5851 [pid 5851] <... rseq resumed>) = 0 [pid 5851] set_robust_list(0x7f85166869a0, 24 [pid 5846] rt_sigprocmask(SIG_SETMASK, [], [pid 5851] <... set_robust_list resumed>) = 0 [pid 5846] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5851] rt_sigprocmask(SIG_SETMASK, [], [pid 5846] futex(0x7f851677a6b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5851] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5846] <... futex resumed>) = 0 [pid 5851] mkdirat(AT_FDCWD, "./cgroup.net/syz0", 0777 [pid 5846] futex(0x7f851677a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 5846] exit_group(0) = ? [pid 5844] kill(-5846, SIGKILL) = 0 [pid 5844] kill(5846, SIGKILL) = 0 [pid 5844] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5844] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5844] getdents64(3, 0x5555684cf7f0 /* 2 entries */, 32768) = 48 [pid 5844] getdents64(3, 0x5555684cf7f0 /* 0 entries */, 32768) = 0 [pid 5844] close(3) = 0 [ 429.715423][ T31] INFO: task syz-executor127:5851 blocked for more than 143 seconds. [ 429.723569][ T31] Not tainted 6.15.0-rc6-syzkaller-00052-g9f35e33144ae #0 [ 429.732023][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 429.740943][ T31] task:syz-executor127 state:D stack:29224 pid:5851 tgid:5846 ppid:5844 task_flags:0x400040 flags:0x00004006 [ 429.753266][ T31] Call Trace: [ 429.756733][ T31] [ 429.759710][ T31] __schedule+0x168f/0x4c70 [ 429.764286][ T31] ? __lock_acquire+0xaac/0xd20 [ 429.769439][ T31] ? schedule+0x165/0x360 [ 429.773810][ T31] ? __pfx___schedule+0x10/0x10 [ 429.778932][ T31] ? schedule+0x91/0x360 [ 429.783207][ T31] schedule+0x165/0x360 [ 429.787610][ T31] ? rwsem_down_read_slowpath+0x568/0x880 [ 429.793365][ T31] schedule_preempt_disabled+0x13/0x30 [ 429.799180][ T31] rwsem_down_read_slowpath+0x552/0x880 [ 429.804946][ T31] ? __pfx_rwsem_down_read_slowpath+0x10/0x10 [ 429.811069][ T31] ? lookup_slow+0x46/0x70 [ 429.815732][ T31] ? generic_permission+0x2e5/0x690 [ 429.820974][ T31] down_read+0x98/0x2e0 [ 429.825370][ T31] lookup_slow+0x46/0x70 [ 429.829642][ T31] link_path_walk+0x925/0xe50 [ 429.834361][ T31] __filename_parentat+0x246/0x670 [ 429.840025][ T31] ? __pfx___filename_parentat+0x10/0x10 [ 429.846146][ T31] filename_create+0xcf/0x470 [ 429.850869][ T31] ? __pfx_filename_create+0x10/0x10 [ 429.856407][ T31] do_mkdirat+0xa0/0x590 [ 429.860690][ T31] ? __pfx_do_mkdirat+0x10/0x10 [ 429.865856][ T31] ? getname_flags+0x1e5/0x540 [ 429.870656][ T31] __x64_sys_mkdirat+0x87/0xa0 [ 429.875668][ T31] do_syscall_64+0xf6/0x210 [ 429.880205][ T31] ? ret_from_fork_asm+0x1a/0x30 [ 429.885387][ T31] ? clear_bhb_loop+0x60/0xb0 [ 429.890114][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 429.896261][ T31] RIP: 0033:0x7f85166f3349 [ 429.900722][ T31] RSP: 002b:00007f8516686168 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 [ 429.909408][ T31] RAX: ffffffffffffffda RBX: 00007f851677a6b8 RCX: 00007f85166f3349 [ 429.917562][ T31] RDX: 00000000000001ff RSI: 0000200000000040 RDI: ffffffffffffff9c [ 429.925734][ T31] RBP: 00007f851677a6b0 R08: 00007ffe1d4ccee7 R09: 0000000000000000 [ 429.933738][ T31] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f851677a6bc [ 429.941986][ T31] R13: 000000000000006e R14: 00007ffe1d4cce00 R15: 00007ffe1d4ccee8 [ 429.950181][ T31] [ 429.953240][ T31] [ 429.953240][ T31] Showing all locks held in the system: [ 429.961795][ T31] 1 lock held by khungtaskd/31: [ 429.966867][ T31] #0: ffffffff8df3dce0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 [ 429.976986][ T31] 1 lock held by syslogd/5171: [ 429.981776][ T31] #0: ffff8880b89399d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 [ 429.992056][ T31] 2 locks held by getty/5580: [ 429.997032][ T31] #0: ffff88803120e0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 430.007028][ T31] #1: ffffc9000333b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400 [ 430.017368][ T31] 3 locks held by syz-executor127/5847: [ 430.022929][ T31] 1 lock held by syz-executor127/5851: [ 430.028770][ T31] #0: ffff88807b516748 (&type->i_mutex_dir_key#3){++++}-{4:4}, at: lookup_slow+0x46/0x70 [ 430.038977][ T31] [ 430.041327][ T31] ============================================= [ 430.041327][ T31] [ 430.050052][ T31] NMI backtrace for cpu 0 [ 430.050075][ T31] CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.15.0-rc6-syzkaller-00052-g9f35e33144ae #0 PREEMPT(full) [ 430.050100][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 430.050112][ T31] Call Trace: [ 430.050120][ T31] [ 430.050128][ T31] dump_stack_lvl+0x189/0x250 [ 430.050159][ T31] ? __wake_up_klogd+0xd9/0x110 [ 430.050186][ T31] ? __pfx_dump_stack_lvl+0x10/0x10 [ 430.050215][ T31] ? __pfx__printk+0x10/0x10 [ 430.050260][ T31] nmi_cpu_backtrace+0x39e/0x3d0 [ 430.050285][ T31] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 430.050303][ T31] ? _printk+0xcf/0x120 [ 430.050340][ T31] ? __pfx__printk+0x10/0x10 [ 430.050374][ T31] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 430.050397][ T31] nmi_trigger_cpumask_backtrace+0x17a/0x300 [ 430.050422][ T31] watchdog+0xfee/0x1030 [ 430.050450][ T31] ? watchdog+0x1de/0x1030 [ 430.050483][ T31] kthread+0x70e/0x8a0 [ 430.050511][ T31] ? __pfx_watchdog+0x10/0x10 [ 430.050535][ T31] ? __pfx_kthread+0x10/0x10 [ 430.050560][ T31] ? __pfx_kthread+0x10/0x10 [ 430.050582][ T31] ? _raw_spin_unlock_irq+0x23/0x50 [ 430.050605][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 430.050631][ T31] ? __pfx_kthread+0x10/0x10 [ 430.050653][ T31] ret_from_fork+0x4b/0x80 [ 430.050672][ T31] ? __pfx_kthread+0x10/0x10 [ 430.050696][ T31] ret_from_fork_asm+0x1a/0x30 [ 430.050743][ T31] [ 430.050775][ T31] Sending NMI from CPU 0 to CPUs 1: [ 430.197576][ C1] NMI backtrace for cpu 1 [ 430.197592][ C1] CPU: 1 UID: 0 PID: 5847 Comm: syz-executor127 Not tainted 6.15.0-rc6-syzkaller-00052-g9f35e33144ae #0 PREEMPT(full) [ 430.197613][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 430.197624][ C1] RIP: 0010:ext4_mark_iloc_dirty+0x1491/0x1ca0 [ 430.197655][ C1] Code: 50 ff e8 22 96 c3 fe eb d2 e8 3b 02 50 ff 48 8b 6c 24 48 eb 05 e8 2f 02 50 ff e8 7a 4f df 08 89 c3 31 ff 89 c6 e8 5f 06 50 ff <85> db 74 15 e8 b6 29 37 ff 84 c0 74 18 e8 0d 02 50 ff 48 8b 5c 24 [ 430.197670][ C1] RSP: 0018:ffffc900045aeff8 EFLAGS: 00000293 [ 430.197685][ C1] RAX: ffffffff826feee1 RBX: 0000000000000001 RCX: 0000000000000000 [ 430.197697][ C1] RDX: ffff888034a7bc00 RSI: 0000000000000001 RDI: 0000000000000000 [ 430.197708][ C1] RBP: ffffc900045af128 R08: 0000000000000000 R09: 0000000000000000 [ 430.197719][ C1] R10: 0000000000000000 R11: ffffffff826fe143 R12: 0000000000000013 [ 430.197730][ C1] R13: 0000000000000002 R14: dffffc0000000000 R15: ffff88807704ee80 [ 430.197743][ C1] FS: 00007f85166a76c0(0000) GS:ffff8881261fb000(0000) knlGS:0000000000000000 [ 430.197758][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 430.197770][ C1] CR2: 0000564fff3f9168 CR3: 000000002f466000 CR4: 00000000003526f0 [ 430.197785][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 430.197795][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 430.197805][ C1] Call Trace: [ 430.197813][ C1] [ 430.197829][ C1] ? ext4_mark_iloc_dirty+0x6f3/0x1ca0 [ 430.197857][ C1] __ext4_mark_inode_dirty+0x4be/0x700 [ 430.197883][ C1] ext4_dirty_inode+0xd0/0x110 [ 430.197908][ C1] ? __pfx_ext4_dirty_inode+0x10/0x10 [ 430.197931][ C1] __mark_inode_dirty+0x2ce/0xdf0 [ 430.197954][ C1] ext4_xattr_block_set+0x12ca/0x2ac0 [ 430.197995][ C1] ? __pfx_ext4_xattr_block_set+0x10/0x10 [ 430.198016][ C1] ? ext4_xattr_ibody_set+0x100/0x6a0 [ 430.198042][ C1] ext4_xattr_set_handle+0xdfb/0x1590 [ 430.198072][ C1] ? __pfx_ext4_xattr_set_handle+0x10/0x10 [ 430.198099][ C1] ? smack_inode_init_security+0x631/0x760 [ 430.198128][ C1] ext4_initxattrs+0x9f/0x110 [ 430.198148][ C1] security_inode_init_security+0x2a0/0x3f0 [ 430.198177][ C1] ? __pfx_ext4_initxattrs+0x10/0x10 [ 430.198195][ C1] ? __pfx_security_inode_init_security+0x10/0x10 [ 430.198223][ C1] ? _raw_spin_unlock+0x28/0x50 [ 430.198241][ C1] ? insert_inode_locked+0x39a/0x410 [ 430.198272][ C1] __ext4_new_inode+0x3257/0x3bd0 [ 430.198305][ C1] ? __pfx___ext4_new_inode+0x10/0x10 [ 430.198329][ C1] ? __pfx___dquot_initialize+0x10/0x10 [ 430.198344][ C1] ? d_splice_alias+0x111/0x330 [ 430.198365][ C1] ? ext4_lookup+0x2b9/0x6c0 [ 430.198382][ C1] ext4_create+0x22d/0x460 [ 430.198404][ C1] ? __pfx_ext4_create+0x10/0x10 [ 430.198422][ C1] ? bpf_lsm_inode_create+0x9/0x20 [ 430.198440][ C1] ? __pfx_ext4_create+0x10/0x10 [ 430.198456][ C1] path_openat+0x14f4/0x3830 [ 430.198475][ C1] ? arch_stack_walk+0xfc/0x150 [ 430.198519][ C1] ? __pfx_path_openat+0x10/0x10 [ 430.198537][ C1] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.198564][ C1] do_filp_open+0x1fa/0x410 [ 430.198585][ C1] ? __pfx_do_filp_open+0x10/0x10 [ 430.198616][ C1] ? _raw_spin_unlock+0x28/0x50 [ 430.198631][ C1] ? alloc_fd+0x64c/0x6c0 [ 430.198661][ C1] do_sys_openat2+0x121/0x1c0 [ 430.198697][ C1] ? __pfx_do_sys_openat2+0x10/0x10 [ 430.198720][ C1] ? rcu_is_watching+0x15/0xb0 [ 430.198750][ C1] __x64_sys_openat+0x138/0x170 [ 430.198773][ C1] do_syscall_64+0xf6/0x210 [ 430.198808][ C1] ? clear_bhb_loop+0x60/0xb0 [ 430.198826][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.198842][ C1] RIP: 0033:0x7f85166f3349 [ 430.198857][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 18 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 [ 430.198870][ C1] RSP: 002b:00007f85166a7168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 430.198886][ C1] RAX: ffffffffffffffda RBX: 00007f851677a6a8 RCX: 00007f85166f3349 [ 430.198898][ C1] RDX: 000000000000275a RSI: 0000200000000080 RDI: 00000000ffffff9c [ 430.198908][ C1] RBP: 00007f851677a6a0 R08: 00007f85166a76c0 R09: 0000000000000000 [ 430.198919][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f851677a6ac [ 430.198929][ C1] R13: 0000000000000006 R14: 00007ffe1d4cce00 R15: 00007ffe1d4ccee8 [ 430.198948][ C1] [ 430.198972][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.397 msecs [ 430.199635][ T31] Kernel panic - not syncing: hung_task: blocked tasks [ 430.644434][ T31] CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.15.0-rc6-syzkaller-00052-g9f35e33144ae #0 PREEMPT(full) [ 430.656245][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 430.666305][ T31] Call Trace: [ 430.669591][ T31] [ 430.672525][ T31] dump_stack_lvl+0x99/0x250 [ 430.677129][ T31] ? __asan_memcpy+0x40/0x70 [ 430.681733][ T31] ? __pfx_dump_stack_lvl+0x10/0x10 [ 430.686938][ T31] ? __pfx__printk+0x10/0x10 [ 430.691553][ T31] panic+0x2db/0x790 [ 430.695466][ T31] ? __pfx_panic+0x10/0x10 [ 430.699891][ T31] ? nmi_backtrace_stall_check+0x433/0x440 [ 430.705712][ T31] ? preempt_schedule_thunk+0x16/0x30 [ 430.711088][ T31] ? nmi_trigger_cpumask_backtrace+0x2b6/0x300 [ 430.717251][ T31] watchdog+0x102d/0x1030 [ 430.721585][ T31] ? watchdog+0x1de/0x1030 [ 430.726021][ T31] kthread+0x70e/0x8a0 [ 430.730104][ T31] ? __pfx_watchdog+0x10/0x10 [ 430.734789][ T31] ? __pfx_kthread+0x10/0x10 [ 430.739395][ T31] ? __pfx_kthread+0x10/0x10 [ 430.743995][ T31] ? _raw_spin_unlock_irq+0x23/0x50 [ 430.749197][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 430.754405][ T31] ? __pfx_kthread+0x10/0x10 [ 430.759003][ T31] ret_from_fork+0x4b/0x80 [ 430.763423][ T31] ? __pfx_kthread+0x10/0x10 [ 430.768022][ T31] ret_from_fork_asm+0x1a/0x30 [ 430.772809][ T31] [ 430.776082][ T31] Kernel Offset: disabled [ 430.780417][ T31] Rebooting in 86400 seconds..