./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1501565791 <...> Warning: Permanently added '10.128.0.125' (ED25519) to the list of known hosts. execve("./syz-executor1501565791", ["./syz-executor1501565791"], 0x7ffc49a2dce0 /* 10 vars */) = 0 brk(NULL) = 0x555558a3a000 brk(0x555558a3ad00) = 0x555558a3ad00 arch_prctl(ARCH_SET_FS, 0x555558a3a380) = 0 set_tid_address(0x555558a3a650) = 5831 set_robust_list(0x555558a3a660, 24) = 0 rseq(0x555558a3aca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1501565791", 4096) = 28 getrandom("\x18\x32\x16\x69\x82\x95\x36\x00", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555558a3ad00 brk(0x555558a5bd00) = 0x555558a5bd00 brk(0x555558a5c000) = 0x555558a5c000 mprotect(0x7fe70f8e3000, 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 mkdir("./syzkaller.RnIzZ2", 0700) = 0 chmod("./syzkaller.RnIzZ2", 0777) = 0 chdir("./syzkaller.RnIzZ2") = 0 mkdir("./0", 0777) = 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 5832 attached [pid 5832] set_robust_list(0x555558a3a660, 24) = 0 [pid 5832] chdir("./0" [pid 5831] <... clone resumed>, child_tidptr=0x555558a3a650) = 5832 [pid 5832] <... chdir resumed>) = 0 [pid 5832] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5832] setpgid(0, 0) = 0 [pid 5832] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5832] write(3, "1000", 4) = 4 [pid 5832] close(3) = 0 [pid 5832] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5832] write(1, "executing program\n", 18executing program ) = 18 [pid 5832] memfd_create("syzkaller", 0) = 3 [pid 5832] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fe707400000 [pid 5832] 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"..., 20699119) = 20699119 [pid 5832] munmap(0x7fe707400000, 138412032) = 0 [pid 5832] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5832] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5832] close(3) = 0 [pid 5832] close(4) = 0 [pid 5832] mkdir("./bus", 0777) = 0 [ 90.091579][ T5832] loop0: detected capacity change from 0 to 40427 [ 90.114634][ T5832] F2FS-fs (loop0): build fault injection rate: 690 [ 90.121721][ T5832] F2FS-fs (loop0): Image doesn't support compression [ 90.128789][ T5832] F2FS-fs (loop0): Image doesn't support compression [ 90.140543][ T5832] F2FS-fs (loop0): invalid crc value [pid 5832] mount("/dev/loop0", "./bus", "f2fs", MS_NOEXEC, "errors=continue,discard_unit=section,alloc_mode=default,active_logs=6,acl,fault_injection=0000000000"...) = 0 [pid 5832] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5832] chdir("./bus") = 0 [pid 5832] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 90.210213][ T5832] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5 [pid 5832] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT, 0403) = 4 [pid 5832] exit_group(0) = ? [pid 5832] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5832, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=24 /* 0.24 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x555558a3b6f0 /* 4 entries */, 32768) = 104 umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./0/binderfs") = 0 [ 90.263961][ T30] audit: type=1800 audit(1749681306.271:2): pid=5832 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor150" name="file1" dev="loop0" ino=10 res=0 errno=0 [ 90.324772][ T5831] syz-executor150: attempt to access beyond end of device [ 90.324772][ T5831] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427 [ 90.339555][ T5831] CPU: 0 UID: 0 PID: 5831 Comm: syz-executor150 Not tainted 6.16.0-rc1-syzkaller-00005-g488ef3560196 #0 PREEMPT(full) [ 90.339573][ T5831] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 90.339580][ T5831] Call Trace: [ 90.339585][ T5831] [ 90.339590][ T5831] dump_stack_lvl+0x189/0x250 [ 90.339634][ T5831] ? __pfx_dump_stack_lvl+0x10/0x10 [ 90.339650][ T5831] ? _raw_spin_unlock_irqrestore+0x85/0x110 [ 90.339678][ T5831] ? __pfx_queue_work_on+0x10/0x10 [ 90.339696][ T5831] ? _raw_spin_unlock_irqrestore+0xad/0x110 [ 90.339712][ T5831] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 90.339729][ T5831] ? f2fs_hw_is_readonly+0x39b/0x470 [ 90.339753][ T5831] f2fs_handle_critical_error+0x37c/0x540 [ 90.339774][ T5831] f2fs_write_end_io+0x495/0x810 [ 90.339784][ T5831] ? blkg_put+0x22/0x240 [ 90.339806][ T5831] __submit_merged_bio+0x27a/0x6a0 [ 90.339826][ T5831] __submit_merged_write_cond+0x255/0x530 [ 90.339847][ T5831] f2fs_write_data_pages+0x261d/0x3000 [ 90.339885][ T5831] ? __pfx_f2fs_write_data_pages+0x10/0x10 [ 90.339951][ T5831] ? __lock_acquire+0xab9/0xd20 [ 90.339973][ T5831] ? do_raw_spin_lock+0x121/0x290 [ 90.339992][ T5831] ? do_raw_spin_unlock+0x122/0x240 [ 90.340005][ T5831] ? __pfx_f2fs_write_data_pages+0x10/0x10 [ 90.340023][ T5831] do_writepages+0x32b/0x550 [ 90.340042][ T5831] ? do_raw_spin_unlock+0x122/0x240 [ 90.340056][ T5831] ? _raw_spin_unlock+0x28/0x50 [ 90.340071][ T5831] ? wbc_attach_and_unlock_inode+0x3f0/0x5d0 [ 90.340092][ T5831] filemap_fdatawrite+0x191/0x230 [ 90.340110][ T5831] ? __pfx_filemap_fdatawrite+0x10/0x10 [ 90.340155][ T5831] ? do_raw_spin_unlock+0x122/0x240 [ 90.340170][ T5831] f2fs_sync_dirty_inodes+0x31f/0x830 [ 90.340191][ T5831] f2fs_write_checkpoint+0x94a/0x1de0 [ 90.340217][ T5831] ? __pfx_f2fs_write_checkpoint+0x10/0x10 [ 90.340257][ T5831] ? kill_f2fs_super+0x298/0x6c0 [ 90.340272][ T5831] kill_f2fs_super+0x2c3/0x6c0 [ 90.340288][ T5831] ? __pfx_kill_f2fs_super+0x10/0x10 [ 90.340297][ T5831] ? radix_tree_delete_item+0x2b6/0x400 [ 90.340319][ T5831] ? shrinker_free+0x2ce/0x3e0 [ 90.340338][ T5831] deactivate_locked_super+0xbc/0x130 [ 90.340351][ T5831] cleanup_mnt+0x425/0x4c0 [ 90.340369][ T5831] ? lockdep_hardirqs_on+0x9c/0x150 [ 90.340389][ T5831] task_work_run+0x1d1/0x260 [ 90.340404][ T5831] ? __pfx_task_work_run+0x10/0x10 [ 90.340416][ T5831] ? __x64_sys_umount+0x122/0x160 [ 90.340436][ T5831] ptrace_notify+0x281/0x2c0 [ 90.340454][ T5831] ? __pfx_ptrace_notify+0x10/0x10 [ 90.340473][ T5831] ? __x64_sys_umount+0x122/0x160 [ 90.340485][ T5831] ? __pfx___x64_sys_umount+0x10/0x10 [ 90.340497][ T5831] ? rcu_is_watching+0x15/0xb0 [ 90.340518][ T5831] syscall_exit_work+0xc6/0x1d0 [ 90.340535][ T5831] do_syscall_64+0x2ad/0x3b0 [ 90.340545][ T5831] ? lockdep_hardirqs_on+0x9c/0x150 [ 90.340562][ T5831] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 90.340573][ T5831] ? clear_bhb_loop+0x60/0xb0 [ 90.340587][ T5831] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 90.340598][ T5831] RIP: 0033:0x7fe70f86b607 [ 90.340609][ T5831] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 [ 90.340619][ T5831] RSP: 002b:00007ffec82947d8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 90.340633][ T5831] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fe70f86b607 [ 90.340640][ T5831] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffec8294890 [ 90.340647][ T5831] RBP: 00007ffec8294890 R08: 0000000000000000 R09: 0000000000000000 [ 90.340654][ T5831] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffec8295900 [ 90.340680][ T5831] R13: 0000555558a3b6c0 R14: 431bde82d7b634db R15: 00007ffec8295920 [ 90.340699][ T5831] [ 90.340704][ T5831] F2FS-fs (loop0): Remounting filesystem read-only [ 90.714183][ T13] page: refcount:4 mapcount:0 mapping:ffff88807e568b10 index:0xb pfn:0x7853d [ 90.723396][ T13] memcg:ffff88801ceb8000 [ 90.727988][ T13] aops:f2fs_node_aops ino:1 [ 90.732548][ T13] flags: 0xfff00000004018(uptodate|dirty|private|node=0|zone=1|lastcpupid=0x7ff) [ 90.741726][ T13] raw: 00fff00000004018 ffffea0001e15188 ffffea0001e14408 ffff88807e568b10 [ 90.750402][ T13] raw: 000000000000000b 0000000000000009 00000004ffffffff ffff88801ceb8000 [ 90.759056][ T13] page dumped because: VM_BUG_ON_FOLIO(!folio_test_locked(folio)) [ 90.766873][ T13] page_owner tracks the page as allocated [ 90.772718][ T13] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x40c40(GFP_NOFS|__GFP_COMP), pid 5832, tgid 5832 (syz-executor150), ts 90262171373, free_ts 77476261169 [ 90.789797][ T13] post_alloc_hook+0x240/0x2a0 [ 90.794559][ T13] get_page_from_freelist+0x21d5/0x22b0 [ 90.800157][ T13] __alloc_frozen_pages_noprof+0x181/0x370 [ 90.805991][ T13] alloc_pages_mpol+0x232/0x4a0 [ 90.810894][ T13] alloc_pages_noprof+0xa9/0x190 [ 90.815851][ T13] folio_alloc_noprof+0x1e/0x30 [ 90.820742][ T13] filemap_alloc_folio_noprof+0xdf/0x470 [ 90.826394][ T13] __filemap_get_folio+0x3f2/0xaf0 [ 90.831590][ T13] f2fs_new_node_folio+0x131/0xa40 [ 90.836732][ T13] f2fs_get_dnode_of_data+0x7d3/0x1b50 [ 90.842272][ T13] f2fs_reserve_block+0x53/0x310 [ 90.847293][ T13] f2fs_get_new_data_folio+0x138/0x870 [ 90.852765][ T13] f2fs_add_regular_entry+0x5a3/0xc10 [ 90.858173][ T13] f2fs_add_dentry+0xda/0x1d0 [ 90.862878][ T13] f2fs_do_add_link+0x20f/0x3b0 [ 90.867778][ T13] f2fs_create+0x337/0x5c0 [ 90.872223][ T13] page last free pid 5806 tgid 5806 stack trace: [ 90.878583][ T13] __free_frozen_pages+0xc65/0xe60 [ 90.883719][ T13] __folio_put+0x21b/0x2c0 [ 90.888239][ T13] anon_pipe_read+0x643/0x1040 [ 90.893027][ T13] vfs_read+0x4d0/0x980 [ 90.897220][ T13] ksys_read+0x145/0x250 [ 90.901481][ T13] do_syscall_64+0xfa/0x3b0 [ 90.905977][ T13] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 90.912406][ T13] ------------[ cut here ]------------ [ 90.917914][ T13] kernel BUG at mm/filemap.c:1498! [ 90.923025][ T13] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI [ 90.929261][ T13] CPU: 0 UID: 0 PID: 13 Comm: kworker/u8:1 Not tainted 6.16.0-rc1-syzkaller-00005-g488ef3560196 #0 PREEMPT(full) [ 90.941223][ T13] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 90.951266][ T13] Workqueue: writeback wb_workfn (flush-7:0) [ 90.957251][ T13] RIP: 0010:folio_unlock+0x13d/0x160 [ 90.962525][ T13] Code: de c8 ff 48 89 df 48 c7 c6 a0 36 94 8b e8 cb 6d 0e 00 90 0f 0b e8 13 de c8 ff 48 89 df 48 c7 c6 c0 2c 94 8b e8 b4 6d 0e 00 90 <0f> 0b e8 fc dd c8 ff 48 89 df 48 c7 c6 a0 36 94 8b e8 9d 6d 0e 00 [ 90.982118][ T13] RSP: 0018:ffffc90000126e28 EFLAGS: 00010246 [ 90.988173][ T13] RAX: f1f3e7ec2cf34900 RBX: ffffea0001e14f40 RCX: 0000000000000000 [ 90.996130][ T13] RDX: 0000000000000006 RSI: ffffffff8d96d7f4 RDI: 00000000ffffffff [ 91.004087][ T13] RBP: ffffc90000127110 R08: ffffffff8f9fdef7 R09: 1ffffffff1f3fbde [ 91.012064][ T13] R10: dffffc0000000000 R11: fffffbfff1f3fbdf R12: 1ffffd40003c29e9 [ 91.020022][ T13] R13: 00fff00000004018 R14: ffffea0001e14f48 R15: dffffc0000000000 [ 91.027982][ T13] FS: 0000000000000000(0000) GS:ffff888125c86000(0000) knlGS:0000000000000000 [ 91.036899][ T13] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 91.043469][ T13] CR2: 00007ffec8293ff8 CR3: 0000000075214000 CR4: 00000000003526f0 [ 91.051433][ T13] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 91.059390][ T13] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 91.067359][ T13] Call Trace: [ 91.070633][ T13] [ 91.073556][ T13] f2fs_sync_node_pages+0x180a/0x1a10 [ 91.078925][ T13] ? __pfx_f2fs_sync_node_pages+0x10/0x10 [ 91.084636][ T13] ? __percpu_counter_sum+0x1c2/0x1e0 [ 91.090007][ T13] ? kvm_sched_clock_read+0x11/0x20 [ 91.095200][ T13] ? rcu_is_watching+0x15/0xb0 [ 91.099955][ T13] ? blk_start_plug+0x52/0x1b0 [ 91.104714][ T13] f2fs_write_node_pages+0x303/0x6e0 [ 91.109992][ T13] ? __pfx_f2fs_write_node_pages+0x10/0x10 [ 91.115791][ T13] ? __pfx_f2fs_write_node_pages+0x10/0x10 [ 91.121590][ T13] do_writepages+0x32b/0x550 [ 91.126178][ T13] __writeback_single_inode+0x145/0xff0 [ 91.131711][ T13] ? wbc_attach_and_unlock_inode+0x3f0/0x5d0 [ 91.137683][ T13] writeback_sb_inodes+0x6b5/0x1000 [ 91.142873][ T13] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 91.148508][ T13] ? rcu_is_watching+0x15/0xb0 [ 91.153271][ T13] wb_writeback+0x43b/0xaf0 [ 91.157767][ T13] ? queue_io+0x351/0x590 [ 91.162084][ T13] ? __pfx_wb_writeback+0x10/0x10 [ 91.167110][ T13] ? _raw_spin_unlock_irq+0x23/0x50 [ 91.172309][ T13] wb_workfn+0x409/0xef0 [ 91.176550][ T13] ? __pfx_wb_workfn+0x10/0x10 [ 91.181310][ T13] ? __lock_acquire+0xab9/0xd20 [ 91.186156][ T13] ? process_scheduled_works+0x9ef/0x17b0 [ 91.191867][ T13] ? _raw_spin_unlock_irq+0x23/0x50 [ 91.197058][ T13] ? process_scheduled_works+0x9ef/0x17b0 [ 91.202767][ T13] ? process_scheduled_works+0x9ef/0x17b0 [ 91.208476][ T13] process_scheduled_works+0xade/0x17b0 [ 91.214022][ T13] ? __pfx_process_scheduled_works+0x10/0x10 [ 91.219995][ T13] worker_thread+0x8a0/0xda0 [ 91.224583][ T13] kthread+0x70e/0x8a0 [ 91.228639][ T13] ? __pfx_worker_thread+0x10/0x10 [ 91.233743][ T13] ? __pfx_kthread+0x10/0x10 [ 91.238319][ T13] ? _raw_spin_unlock_irq+0x23/0x50 [ 91.243510][ T13] ? lockdep_hardirqs_on+0x9c/0x150 [ 91.248698][ T13] ? __pfx_kthread+0x10/0x10 [ 91.253278][ T13] ret_from_fork+0x3fc/0x770 [ 91.257858][ T13] ? __pfx_ret_from_fork+0x10/0x10 [ 91.262959][ T13] ? __switch_to_asm+0x39/0x70 [ 91.267708][ T13] ? __switch_to_asm+0x33/0x70 [ 91.272461][ T13] ? __pfx_kthread+0x10/0x10 [ 91.277040][ T13] ret_from_fork_asm+0x1a/0x30 [ 91.281795][ T13] [ 91.284801][ T13] Modules linked in: [ 91.288851][ T13] ---[ end trace 0000000000000000 ]--- [ 91.294379][ T13] RIP: 0010:folio_unlock+0x13d/0x160 [ 91.299730][ T13] Code: de c8 ff 48 89 df 48 c7 c6 a0 36 94 8b e8 cb 6d 0e 00 90 0f 0b e8 13 de c8 ff 48 89 df 48 c7 c6 c0 2c 94 8b e8 b4 6d 0e 00 90 <0f> 0b e8 fc dd c8 ff 48 89 df 48 c7 c6 a0 36 94 8b e8 9d 6d 0e 00 [ 91.319396][ T13] RSP: 0018:ffffc90000126e28 EFLAGS: 00010246 [ 91.325492][ T13] RAX: f1f3e7ec2cf34900 RBX: ffffea0001e14f40 RCX: 0000000000000000 [ 91.333519][ T13] RDX: 0000000000000006 RSI: ffffffff8d96d7f4 RDI: 00000000ffffffff [ 91.341552][ T13] RBP: ffffc90000127110 R08: ffffffff8f9fdef7 R09: 1ffffffff1f3fbde [ 91.349575][ T13] R10: dffffc0000000000 R11: fffffbfff1f3fbdf R12: 1ffffd40003c29e9 [ 91.357598][ T13] R13: 00fff00000004018 R14: ffffea0001e14f48 R15: dffffc0000000000 [ 91.365564][ T13] FS: 0000000000000000(0000) GS:ffff888125c86000(0000) knlGS:0000000000000000 [ 91.374511][ T13] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 91.381130][ T13] CR2: 00007ffec8293ff8 CR3: 0000000075214000 CR4: 00000000003526f0 [ 91.389126][ T13] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 91.397137][ T13] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 91.405100][ T13] Kernel panic - not syncing: Fatal exception [ 91.411396][ T13] Kernel Offset: disabled [ 91.415713][ T13] Rebooting in 86400 seconds..