./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2487399249 <...> DUID 00:04:dd:0f:a4:e5:cb:b8:04:95:2f:30:92:03:b3:b6:0d:bc forked to background, child pid 4721 [ 33.093006][ T4722] 8021q: adding VLAN 0 to HW filter on device bond0 [ 33.108597][ T4722] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.164' (ED25519) to the list of known hosts. execve("./syz-executor2487399249", ["./syz-executor2487399249"], 0x7ffdea79ce30 /* 10 vars */) = 0 brk(NULL) = 0x555557039000 brk(0x555557039d00) = 0x555557039d00 arch_prctl(ARCH_SET_FS, 0x555557039380) = 0 set_tid_address(0x555557039650) = 5052 set_robust_list(0x555557039660, 24) = 0 rseq(0x555557039ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2487399249", 4096) = 28 getrandom("\x6f\xa0\xdd\xa7\xcd\x65\xcc\xcd", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555557039d00 brk(0x55555705ad00) = 0x55555705ad00 brk(0x55555705b000) = 0x55555705b000 mprotect(0x7f0ff53c3000, 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/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 5053 attached , child_tidptr=0x555557039650) = 5053 [pid 5053] set_robust_list(0x555557039660, 24) = 0 [pid 5053] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5053] setpgid(0, 0) = 0 [pid 5053] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5053] write(3, "1000", 4) = 4 [pid 5053] close(3) = 0 [pid 5053] memfd_create("syzkaller", 0) = 3 [pid 5053] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0fece00000 [pid 5053] 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"..., 16777216) = 16777216 [pid 5053] munmap(0x7f0fece00000, 138412032) = 0 [pid 5053] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5053] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5053] close(3) = 0 [pid 5053] close(4) = 0 [pid 5053] mkdir("./bus", 0777) = 0 syzkaller login: [ 55.022110][ T5053] loop0: detected capacity change from 0 to 32768 [ 55.048015][ T5053] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor248 (5053) [ 55.075743][ T5053] BTRFS info (device loop0): first mount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 [ 55.087521][ T5053] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 55.098253][ T5053] BTRFS info (device loop0): using free-space-tree [pid 5053] mount("/dev/loop0", "./bus", "btrfs", 0, "discard,") = 0 [pid 5053] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5053] chdir("./bus") = 0 [pid 5053] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5053] ioctl(4, LOOP_CLR_FD) = 0 [pid 5053] close(4) = 0 [pid 5053] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000) = 4 [pid 5053] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 5 [pid 5053] ftruncate(5, 33587195) = 0 [pid 5053] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 5052] kill(-5053, SIGKILL) = 0 [pid 5052] kill(5053, SIGKILL) = 0 [pid 5052] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5052] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5052] getdents64(3, 0x55555703a6f0 /* 2 entries */, 32768) = 48 [pid 5052] getdents64(3, 0x55555703a6f0 /* 0 entries */, 32768) = 0 [pid 5052] close(3) = 0 [ 76.754427][ T1783] cfg80211: failed to load regulatory.db [ 286.672546][ T29] INFO: task syz-executor248:5053 blocked for more than 143 seconds. [ 286.680717][ T29] Not tainted 6.8.0-rc3-syzkaller-00317-g7521f258ea30 #0 [ 286.688395][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.697190][ T29] task:syz-executor248 state:D stack:22680 pid:5053 tgid:5053 ppid:5052 flags:0x00004006 [ 286.707438][ T29] Call Trace: [ 286.710715][ T29] [ 286.713692][ T29] __schedule+0x177f/0x49a0 [ 286.718343][ T29] ? __pfx___schedule+0x10/0x10 [ 286.723236][ T29] ? __pfx_lock_release+0x10/0x10 [ 286.728329][ T29] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 286.734321][ T29] ? do_raw_spin_unlock+0x13b/0x8b0 [ 286.739532][ T29] ? schedule+0x8e/0x260 [ 286.743837][ T29] schedule+0x149/0x260 [ 286.748001][ T29] lock_extent+0x69d/0x860 [ 286.752514][ T29] ? __pfx_lock_extent+0x10/0x10 [ 286.757463][ T29] ? __pfx_autoremove_wake_function+0x10/0x10 [ 286.763593][ T29] ? btrfs_dirty_inode+0x182/0x1a0 [ 286.768736][ T29] ? mnt_put_write_access_file+0xc2/0x100 [ 286.774531][ T29] ? folio_wait_writeback+0x1a8/0x1e0 [ 286.779928][ T29] btrfs_page_mkwrite+0x743/0x10c0 [ 286.785072][ T29] ? mark_lock+0x9a/0x350 [ 286.789417][ T29] ? __pfx_btrfs_page_mkwrite+0x10/0x10 [ 286.795011][ T29] ? __pfx_lock_release+0x10/0x10 [ 286.800050][ T29] do_page_mkwrite+0x19b/0x480 [ 286.805112][ T29] do_wp_page+0x20e3/0x4c90 [ 286.809639][ T29] ? __pfx_do_wp_page+0x10/0x10 [ 286.814551][ T29] ? __pfx_lock_acquire+0x10/0x10 [ 286.819564][ T29] ? do_raw_spin_lock+0x14e/0x370 [ 286.824665][ T29] ? __pfx_validate_chain+0x10/0x10 [ 286.829890][ T29] __handle_mm_fault+0x26ad/0x72d0 [ 286.835105][ T29] ? __pfx___handle_mm_fault+0x10/0x10 [ 286.840579][ T29] ? mt_find+0x226/0x850 [ 286.844905][ T29] ? __pfx_lock_release+0x10/0x10 [ 286.849945][ T29] ? mt_find+0x62d/0x850 [ 286.854242][ T29] ? mt_find+0x226/0x850 [ 286.858501][ T29] ? find_vma+0x142/0x1c0 [ 286.862858][ T29] ? __pfx_find_vma+0x10/0x10 [ 286.867536][ T29] ? lockdep_hardirqs_on_prepare+0x43c/0x780 [ 286.873568][ T29] handle_mm_fault+0x27e/0x770 [ 286.878343][ T29] exc_page_fault+0x2ad/0x870 [ 286.883160][ T29] asm_exc_page_fault+0x26/0x30 [ 286.888083][ T29] RIP: 0010:rep_movs_alternative+0x33/0x70 [ 286.893963][ T29] Code: 40 83 f9 08 73 21 85 c9 74 0f 8a 06 88 07 48 ff c7 48 ff c6 48 ff c9 75 f1 c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 48 8b 06 <48> 89 07 48 83 c6 08 48 83 c7 08 83 e9 08 74 df 83 f9 08 73 e8 eb [ 286.913656][ T29] RSP: 0018:ffffc90003a2f530 EFLAGS: 00050206 [ 286.919722][ T29] RAX: 0000000000000000 RBX: 0000000020000218 RCX: 0000000000000038 [ 286.927716][ T29] RDX: 0000000000000000 RSI: ffffc90003a2f5e0 RDI: 00000000200001e0 [ 286.935723][ T29] RBP: ffffc90003a2f690 R08: ffffc90003a2f617 R09: 1ffff92000745ec2 [ 286.943719][ T29] R10: dffffc0000000000 R11: fffff52000745ec3 R12: 0000000000000038 [ 286.951694][ T29] R13: ffffc90003a2f5e0 R14: 00000000200001e0 R15: ffffc90003a2f5e0 [ 286.959752][ T29] _copy_to_user+0x86/0xb0 [ 286.964274][ T29] fiemap_fill_next_extent+0x235/0x410 [ 286.969772][ T29] ? __pfx_fiemap_fill_next_extent+0x10/0x10 [ 286.975847][ T29] ? extent_fiemap+0x17fd/0x1fe0 [ 286.980792][ T29] ? __kasan_slab_free+0x46/0x70 [ 286.985775][ T29] extent_fiemap+0x1b9c/0x1fe0 [ 286.990546][ T29] ? kasan_save_track+0x3f/0x80 [ 286.995443][ T29] ? kasan_save_free_info+0x4e/0x60 [ 287.000693][ T29] ? __pfx_extent_fiemap+0x10/0x10 [ 287.005840][ T29] ? lockdep_hardirqs_on_prepare+0x43c/0x780 [ 287.011833][ T29] ? print_irqtrace_events+0x1c0/0x220 [ 287.017357][ T29] ? kasan_quarantine_put+0xdc/0x230 [ 287.022670][ T29] ? btrfs_wait_ordered_range+0x1c3/0x260 [ 287.028377][ T29] ? __kasan_slab_free+0x46/0x70 [ 287.033371][ T29] ? kmem_cache_free+0x102/0x2a0 [ 287.038322][ T29] ? btrfs_wait_ordered_range+0x241/0x260 [ 287.044082][ T29] btrfs_fiemap+0x178/0x1f0 [ 287.048588][ T29] ? __pfx_btrfs_fiemap+0x10/0x10 [ 287.053651][ T29] ? __might_fault+0xc5/0x120 [ 287.058331][ T29] ? __pfx_btrfs_fiemap+0x10/0x10 [ 287.063393][ T29] do_vfs_ioctl+0x1a02/0x2b60 [ 287.068086][ T29] ? __pfx_do_vfs_ioctl+0x10/0x10 [ 287.073161][ T29] ? __pfx_lock_release+0x10/0x10 [ 287.078199][ T29] ? __kasan_slab_free+0x46/0x70 [ 287.083192][ T29] ? kfree+0x14a/0x380 [ 287.087289][ T29] ? tomoyo_path_number_perm+0x71a/0x880 [ 287.093066][ T29] ? tomoyo_path_number_perm+0x208/0x880 [ 287.098713][ T29] ? smack_log+0x123/0x540 [ 287.103160][ T29] ? __pfx_tomoyo_path_number_perm+0x10/0x10 [ 287.109153][ T29] ? __pfx_smack_log+0x10/0x10 [ 287.113965][ T29] ? smk_access+0x4ab/0x4e0 [ 287.118480][ T29] ? smk_tskacc+0x2ff/0x360 [ 287.123017][ T29] ? smack_file_ioctl+0x2fa/0x3a0 [ 287.128055][ T29] ? __pfx_smack_file_ioctl+0x10/0x10 [ 287.133500][ T29] ? bpf_lsm_file_ioctl+0x9/0x10 [ 287.138475][ T29] ? security_file_ioctl+0x87/0xb0 [ 287.143629][ T29] __se_sys_ioctl+0x81/0x170 [ 287.148228][ T29] do_syscall_64+0xf9/0x240 [ 287.152876][ T29] entry_SYSCALL_64_after_hwframe+0x6f/0x77 [ 287.158781][ T29] RIP: 0033:0x7f0ff534ab59 [ 287.163264][ T29] RSP: 002b:00007ffc5e3f0b28 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 287.171686][ T29] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f0ff534ab59 [ 287.179699][ T29] RDX: 00000000200001c0 RSI: 00000000c020660b RDI: 0000000000000006 [ 287.187697][ T29] RBP: 00007f0ff53c35f0 R08: 0000000000000000 R09: 000055555703a4c0 [ 287.195709][ T29] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5e3f0b50 [ 287.203726][ T29] R13: 00007ffc5e3f0d78 R14: 431bde82d7b634db R15: 00007f0ff539303b [ 287.211737][ T29] [ 287.215081][ T29] [ 287.215081][ T29] Showing all locks held in the system: [ 287.222840][ T29] 6 locks held by kworker/u4:0/11: [ 287.227955][ T29] #0: ffff8880b953c918 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 [ 287.237999][ T29] #1: ffff8880b9528988 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x3a7/0x770 [ 287.249459][ T29] #2: ffff8880b952a958 (&base->lock){-.-.}-{2:2}, at: __mod_timer+0x6a1/0xfd0 [ 287.258496][ T29] #3: ffffffff946ff620 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_object_activate+0x16d/0x510 [ 287.268897][ T29] #4: ffffffff8dfe1268 (text_mutex){+.+.}-{3:3}, at: arch_jump_label_transform_apply+0x17/0x30 [ 287.279422][ T29] #5: ffffffff8e130ae0 (rcu_read_lock){....}-{1:2}, at: __pte_offset_map+0x82/0x380 [ 287.288971][ T29] 1 lock held by khungtaskd/29: [ 287.293856][ T29] #0: ffffffff8e130ae0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 287.303778][ T29] 2 locks held by getty/4805: [ 287.308435][ T29] #0: ffff88802b9820a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 287.318362][ T29] #1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b4/0x1e10 [ 287.328527][ T29] 4 locks held by syz-executor248/5053: [ 287.334115][ T29] #0: ffff88807e1d8e10 (&sb->s_type->i_mutex_key#14){++++}-{3:3}, at: btrfs_inode_lock+0x60/0xe0 [ 287.344811][ T29] #1: ffff888076d8c420 (&mm->mmap_lock){++++}-{3:3}, at: lock_mm_and_find_vma+0x32/0x2e0 [ 287.354814][ T29] #2: ffff888029c8a518 (sb_pagefaults){.+.+}-{0:0}, at: do_page_mkwrite+0x19b/0x480 [ 287.364358][ T29] #3: ffff88807e1d8c98 (&ei->i_mmap_lock){.+.+}-{3:3}, at: btrfs_page_mkwrite+0x603/0x10c0 [ 287.374552][ T29] [ 287.376873][ T29] ============================================= [ 287.376873][ T29] [ 287.385302][ T29] NMI backtrace for cpu 0 [ 287.389624][ T29] CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.8.0-rc3-syzkaller-00317-g7521f258ea30 #0 [ 287.399405][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 287.409443][ T29] Call Trace: [ 287.412707][ T29] [ 287.415621][ T29] dump_stack_lvl+0x1e7/0x2e0 [ 287.420283][ T29] ? __pfx_dump_stack_lvl+0x10/0x10 [ 287.425463][ T29] ? __pfx__printk+0x10/0x10 [ 287.430031][ T29] ? vprintk_emit+0x607/0x720 [ 287.434689][ T29] ? __pfx_vprintk_emit+0x10/0x10 [ 287.439700][ T29] nmi_cpu_backtrace+0x49c/0x4d0 [ 287.444672][ T29] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 287.450117][ T29] ? _printk+0xd5/0x120 [ 287.454261][ T29] ? __pfx__printk+0x10/0x10 [ 287.458829][ T29] ? __wake_up_klogd+0xcc/0x110 [ 287.463663][ T29] ? __pfx__printk+0x10/0x10 [ 287.468236][ T29] ? __rcu_read_unlock+0xa0/0x110 [ 287.473241][ T29] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 287.479217][ T29] nmi_trigger_cpumask_backtrace+0x198/0x320 [ 287.485176][ T29] watchdog+0xfaf/0xff0 [ 287.489327][ T29] ? watchdog+0x1e9/0xff0 [ 287.493647][ T29] ? __pfx_watchdog+0x10/0x10 [ 287.498321][ T29] kthread+0x2ef/0x390 [ 287.502378][ T29] ? __pfx_watchdog+0x10/0x10 [ 287.507055][ T29] ? __pfx_kthread+0x10/0x10 [ 287.511633][ T29] ret_from_fork+0x4b/0x80 [ 287.516047][ T29] ? __pfx_kthread+0x10/0x10 [ 287.520625][ T29] ret_from_fork_asm+0x1b/0x30 [ 287.525415][ T29] [ 287.528531][ T29] Sending NMI from CPU 0 to CPUs 1: [ 287.533768][ C1] NMI backtrace for cpu 1 [ 287.533778][ C1] CPU: 1 PID: 4497 Comm: klogd Not tainted 6.8.0-rc3-syzkaller-00317-g7521f258ea30 #0 [ 287.533796][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 287.533804][ C1] RIP: 0010:__sanitizer_cov_trace_switch+0x12/0x120 [ 287.533830][ C1] Code: 00 00 00 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 41 57 41 56 41 54 53 4c 8b 16 48 8b 46 08 <48> 83 c0 f8 48 c1 c0 3d 48 83 f8 02 7f 1f 48 85 c0 74 3a 48 83 f8 [ 287.533842][ C1] RSP: 0018:ffffc9000313f200 EFLAGS: 00000202 [ 287.533856][ C1] RAX: 0000000000000020 RBX: 0000000000000000 RCX: ffff888076698000 [ 287.533867][ C1] RDX: ffffc9000313f335 RSI: ffffffff8dfa0200 RDI: 0000000000000004 [ 287.533879][ C1] RBP: 0000000000000004 R08: 0000000000000003 R09: ffffffff81405417 [ 287.533889][ C1] R10: 0000000000000008 R11: ffff888076698000 R12: ffffffff8f9be3cc [ 287.533899][ C1] R13: dffffc0000000000 R14: ffffc9000313f350 R15: 1ffff92000627e60 [ 287.533915][ C1] FS: 00007ff874843380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 287.533929][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 287.533941][ C1] CR2: 000056351fc2cff8 CR3: 000000002d754000 CR4: 00000000003506f0 [ 287.533954][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 287.533964][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 287.533974][ C1] Call Trace: [ 287.533980][ C1] [ 287.533985][ C1] ? nmi_cpu_backtrace+0x3c2/0x4d0 [ 287.534002][ C1] ? __pfx_lock_acquire+0x10/0x10 [ 287.534024][ C1] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 287.534039][ C1] ? nmi_handle+0x2a/0x580 [ 287.534062][ C1] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 287.534079][ C1] ? nmi_handle+0x14f/0x580 [ 287.534094][ C1] ? nmi_handle+0x2a/0x580 [ 287.534109][ C1] ? __sanitizer_cov_trace_switch+0x12/0x120 [ 287.534128][ C1] ? default_do_nmi+0x63/0x160 [ 287.534145][ C1] ? exc_nmi+0x121/0x210 [ 287.534160][ C1] ? end_repeat_nmi+0xf/0x60 [ 287.534183][ C1] ? unwind_next_frame+0x6c7/0x29e0 [ 287.534205][ C1] ? __sanitizer_cov_trace_switch+0x12/0x120 [ 287.534225][ C1] ? __sanitizer_cov_trace_switch+0x12/0x120 [ 287.534245][ C1] ? __sanitizer_cov_trace_switch+0x12/0x120 [ 287.534265][ C1] [ 287.534270][ C1] [ 287.534276][ C1] unwind_next_frame+0x7c3/0x29e0 [ 287.534300][ C1] ? kasan_save_track+0x3f/0x80 [ 287.534316][ C1] ? kasan_save_track+0x3f/0x80 [ 287.534331][ C1] ? __kernel_text_address+0xd/0x40 [ 287.534348][ C1] ? kasan_save_track+0x3f/0x80 [ 287.534363][ C1] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 287.534382][ C1] arch_stack_walk+0x150/0x1b0 [ 287.534400][ C1] ? kasan_save_track+0x3f/0x80 [ 287.534419][ C1] stack_trace_save+0x117/0x1d0 [ 287.534438][ C1] ? __pfx_stack_trace_save+0x10/0x10 [ 287.534458][ C1] ? __pfx_stack_trace_save+0x10/0x10 [ 287.534477][ C1] kasan_save_track+0x3f/0x80 [ 287.534492][ C1] ? kasan_save_track+0x3f/0x80 [ 287.534532][ C1] __kasan_kmalloc+0x98/0xb0 [ 287.534550][ C1] __kmalloc_node_track_caller+0x249/0x4e0 [ 287.534572][ C1] ? __alloc_skb+0x1b1/0x420 [ 287.534678][ C1] ? __alloc_skb+0x1b1/0x420 [ 287.534693][ C1] kmalloc_reserve+0xf3/0x260 [ 287.534710][ C1] __alloc_skb+0x1b1/0x420 [ 287.534729][ C1] ? __pfx___alloc_skb+0x10/0x10 [ 287.534749][ C1] alloc_skb_with_frags+0xc3/0x780 [ 287.534802][ C1] sock_alloc_send_pskb+0x919/0xa60 [ 287.534854][ C1] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 287.534875][ C1] ? do_raw_spin_unlock+0x13b/0x8b0 [ 287.534897][ C1] unix_dgram_sendmsg+0x696/0x2200 [ 287.534955][ C1] ? tomoyo_socket_sendmsg_permission+0x287/0x410 [ 287.534980][ C1] ? __pfx_unix_dgram_sendmsg+0x10/0x10 [ 287.535001][ C1] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 287.535020][ C1] ? security_socket_sendmsg+0x87/0xb0 [ 287.535043][ C1] ? __pfx_unix_dgram_sendmsg+0x10/0x10 [ 287.535058][ C1] __sock_sendmsg+0x221/0x270 [ 287.535109][ C1] __sys_sendto+0x3a4/0x4f0 [ 287.535129][ C1] ? __pfx___sys_sendto+0x10/0x10 [ 287.535157][ C1] ? lockdep_hardirqs_on_prepare+0x43c/0x780 [ 287.535178][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 287.535201][ C1] __x64_sys_sendto+0xde/0x100 [ 287.535219][ C1] do_syscall_64+0xf9/0x240 [ 287.535241][ C1] entry_SYSCALL_64_after_hwframe+0x6f/0x77 [ 287.535260][ C1] RIP: 0033:0x7ff8749a59b5 [ 287.535273][ C1] Code: 8b 44 24 08 48 83 c4 28 48 98 c3 48 98 c3 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 26 45 31 c9 45 31 c0 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 7a 48 8b 15 44 c4 0c 00 f7 d8 64 89 02 48 83 [ 287.535285][ C1] RSP: 002b:00007ffdefeb2508 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 287.535301][ C1] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff8749a59b5 [ 287.535312][ C1] RDX: 000000000000008b RSI: 000056249d641f50 RDI: 0000000000000003 [ 287.535322][ C1] RBP: 000056249d63d910 R08: 0000000000000000 R09: 0000000000000000 [ 287.535332][ C1] R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000000013 [ 287.535342][ C1] R13: 00007ff874b33212 R14: 00007ffdefeb2608 R15: 0000000000000000 [ 287.535360][ C1] [ 287.535366][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.597 msecs [ 287.535806][ T29] Kernel panic - not syncing: hung_task: blocked tasks [ 288.045163][ T29] CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.8.0-rc3-syzkaller-00317-g7521f258ea30 #0 [ 288.054953][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 288.064992][ T29] Call Trace: [ 288.068259][ T29] [ 288.071179][ T29] dump_stack_lvl+0x1e7/0x2e0 [ 288.075856][ T29] ? __pfx_dump_stack_lvl+0x10/0x10 [ 288.081045][ T29] ? __pfx__printk+0x10/0x10 [ 288.085628][ T29] ? vscnprintf+0x5d/0x90 [ 288.089946][ T29] panic+0x349/0x860 [ 288.093852][ T29] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 288.100003][ T29] ? __pfx_panic+0x10/0x10 [ 288.104412][ T29] ? tick_nohz_tick_stopped+0x7b/0xc0 [ 288.109793][ T29] ? __irq_work_queue_local+0x137/0x3e0 [ 288.115339][ T29] ? preempt_schedule_thunk+0x1a/0x30 [ 288.120704][ T29] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 288.126850][ T29] ? nmi_trigger_cpumask_backtrace+0x2d4/0x320 [ 288.132998][ T29] ? nmi_trigger_cpumask_backtrace+0x2d9/0x320 [ 288.139146][ T29] watchdog+0xfee/0xff0 [ 288.143304][ T29] ? watchdog+0x1e9/0xff0 [ 288.147631][ T29] ? __pfx_watchdog+0x10/0x10 [ 288.152299][ T29] kthread+0x2ef/0x390 [ 288.156359][ T29] ? __pfx_watchdog+0x10/0x10 [ 288.161029][ T29] ? __pfx_kthread+0x10/0x10 [ 288.165608][ T29] ret_from_fork+0x4b/0x80 [ 288.170014][ T29] ? __pfx_kthread+0x10/0x10 [ 288.174589][ T29] ret_from_fork_asm+0x1b/0x30 [ 288.179355][ T29] [ 288.182540][ T29] Kernel Offset: disabled [ 288.186848][ T29] Rebooting in 86400 seconds..