./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3940762955 <...> Warning: Permanently added '10.128.1.104' (ED25519) to the list of known hosts. execve("./syz-executor3940762955", ["./syz-executor3940762955"], 0x7fffba0fca60 /* 10 vars */) = 0 brk(NULL) = 0x555559b48000 brk(0x555559b48d00) = 0x555559b48d00 arch_prctl(ARCH_SET_FS, 0x555559b48380) = 0 set_tid_address(0x555559b48650) = 5829 set_robust_list(0x555559b48660, 24) = 0 rseq(0x555559b48ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3940762955", 4096) = 28 getrandom("\x3d\xf3\xed\x0b\xeb\x4a\x0e\x1b", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555559b48d00 brk(0x555559b69d00) = 0x555559b69d00 brk(0x555559b6a000) = 0x555559b6a000 mprotect(0x7f853ca13000, 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.CJgjzM", 0700) = 0 chmod("./syzkaller.CJgjzM", 0777) = 0 chdir("./syzkaller.CJgjzM") = 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, child_tidptr=0x555559b48650) = 5830 ./strace-static-x86_64: Process 5830 attached [pid 5830] set_robust_list(0x555559b48660, 24) = 0 [pid 5830] chdir("./0") = 0 [pid 5830] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5830] setpgid(0, 0) = 0 [pid 5830] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5830] write(3, "1000", 4) = 4 [pid 5830] close(3) = 0 [pid 5830] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5830] write(1, "executing program\n", 18) = 18 executing program [pid 5830] memfd_create("syzkaller", 0) = 3 [pid 5830] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8534400000 [pid 5830] 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 5830] munmap(0x7f8534400000, 138412032) = 0 [pid 5830] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5830] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5830] close(3) = 0 [pid 5830] close(4) = 0 [pid 5830] mkdir("./bus", 0777) = 0 [ 91.836181][ T5830] loop0: detected capacity change from 0 to 40427 [ 91.876680][ T5830] F2FS-fs (loop0): build fault injection rate: 690 [ 91.883357][ T5830] F2FS-fs (loop0): Image doesn't support compression [ 91.890964][ T5830] F2FS-fs (loop0): Image doesn't support compression [ 91.906447][ T5830] F2FS-fs (loop0): invalid crc value [pid 5830] mount("/dev/loop0", "./bus", "f2fs", MS_NOEXEC, "errors=continue,discard_unit=section,alloc_mode=default,active_logs=6,acl,fault_injection=0000000000"...) = 0 [pid 5830] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5830] chdir("./bus") = 0 [pid 5830] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 91.958473][ T5830] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5 [ 91.986365][ T45] cfg80211: failed to load regulatory.db [pid 5830] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT, 0403) = 4 [pid 5830] exit_group(0) = ? [pid 5830] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5830, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=24 /* 0.24 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 92.018794][ T30] audit: type=1800 audit(1749684699.316:2): pid=5830 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor394" name="file1" dev="loop0" ino=10 res=0 errno=0 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, 0x555559b496f0 /* 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 [ 92.122873][ T5829] syz-executor394: attempt to access beyond end of device [ 92.122873][ T5829] loop0: rw=2049, sector=45096, nr_sectors = 8 limit=40427 [ 92.137700][ T5829] CPU: 0 UID: 0 PID: 5829 Comm: syz-executor394 Not tainted 6.16.0-rc1-syzkaller-00005-g488ef3560196 #0 PREEMPT(full) [ 92.137719][ T5829] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 92.137725][ T5829] Call Trace: [ 92.137730][ T5829] [ 92.137735][ T5829] dump_stack_lvl+0x189/0x250 [ 92.137779][ T5829] ? __pfx_dump_stack_lvl+0x10/0x10 [ 92.137795][ T5829] ? _raw_spin_unlock_irqrestore+0x85/0x110 [ 92.137817][ T5829] ? __pfx_queue_work_on+0x10/0x10 [ 92.137836][ T5829] ? _raw_spin_unlock_irqrestore+0xad/0x110 [ 92.137852][ T5829] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 92.137870][ T5829] ? f2fs_hw_is_readonly+0x39b/0x470 [ 92.137894][ T5829] f2fs_handle_critical_error+0x37c/0x540 [ 92.137915][ T5829] f2fs_write_end_io+0x495/0x810 [ 92.137925][ T5829] ? blkg_put+0x22/0x240 [ 92.137947][ T5829] __submit_merged_bio+0x27a/0x6a0 [ 92.137968][ T5829] __submit_merged_write_cond+0x255/0x530 [ 92.137989][ T5829] f2fs_write_data_pages+0x261d/0x3000 [ 92.138028][ T5829] ? __pfx_f2fs_write_data_pages+0x10/0x10 [ 92.138090][ T5829] ? __lock_acquire+0xab9/0xd20 [ 92.138111][ T5829] ? do_raw_spin_lock+0x121/0x290 [ 92.138131][ T5829] ? do_raw_spin_unlock+0x122/0x240 [ 92.138144][ T5829] ? __pfx_f2fs_write_data_pages+0x10/0x10 [ 92.138163][ T5829] do_writepages+0x32b/0x550 [ 92.138182][ T5829] ? do_raw_spin_unlock+0x122/0x240 [ 92.138196][ T5829] ? _raw_spin_unlock+0x28/0x50 [ 92.138211][ T5829] ? wbc_attach_and_unlock_inode+0x3f0/0x5d0 [ 92.138232][ T5829] filemap_fdatawrite+0x191/0x230 [ 92.138250][ T5829] ? __pfx_filemap_fdatawrite+0x10/0x10 [ 92.138297][ T5829] ? do_raw_spin_unlock+0x122/0x240 [ 92.138312][ T5829] f2fs_sync_dirty_inodes+0x31f/0x830 [ 92.138333][ T5829] f2fs_write_checkpoint+0x94a/0x1de0 [ 92.138360][ T5829] ? __pfx_f2fs_write_checkpoint+0x10/0x10 [ 92.138401][ T5829] ? kill_f2fs_super+0x298/0x6c0 [ 92.138421][ T5829] kill_f2fs_super+0x2c3/0x6c0 [ 92.138436][ T5829] ? __pfx_kill_f2fs_super+0x10/0x10 [ 92.138447][ T5829] ? radix_tree_delete_item+0x2b6/0x400 [ 92.138468][ T5829] ? shrinker_free+0x2ce/0x3e0 [ 92.138488][ T5829] deactivate_locked_super+0xbc/0x130 [ 92.138501][ T5829] cleanup_mnt+0x425/0x4c0 [ 92.138520][ T5829] ? lockdep_hardirqs_on+0x9c/0x150 [ 92.138539][ T5829] task_work_run+0x1d1/0x260 [ 92.138555][ T5829] ? __pfx_task_work_run+0x10/0x10 [ 92.138567][ T5829] ? __x64_sys_umount+0x122/0x160 [ 92.138587][ T5829] ptrace_notify+0x281/0x2c0 [ 92.138606][ T5829] ? __pfx_ptrace_notify+0x10/0x10 [ 92.138624][ T5829] ? __x64_sys_umount+0x122/0x160 [ 92.138637][ T5829] ? __pfx___x64_sys_umount+0x10/0x10 [ 92.138649][ T5829] ? rcu_is_watching+0x15/0xb0 [ 92.138672][ T5829] syscall_exit_work+0xc6/0x1d0 [ 92.138690][ T5829] do_syscall_64+0x2ad/0x3b0 [ 92.138700][ T5829] ? lockdep_hardirqs_on+0x9c/0x150 [ 92.138717][ T5829] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 92.138728][ T5829] ? clear_bhb_loop+0x60/0xb0 [ 92.138743][ T5829] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 92.138754][ T5829] RIP: 0033:0x7f853c99b607 [ 92.138766][ T5829] 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 [ 92.138776][ T5829] RSP: 002b:00007ffcbd066618 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 92.138791][ T5829] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f853c99b607 [ 92.138799][ T5829] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffcbd0666d0 [ 92.138806][ T5829] RBP: 00007ffcbd0666d0 R08: 0000000000000000 R09: 0000000000000000 [ 92.138813][ T5829] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffcbd067740 [ 92.138821][ T5829] R13: 0000555559b496c0 R14: 431bde82d7b634db R15: 00007ffcbd067760 [ 92.138840][ T5829] [ 92.138845][ T5829] F2FS-fs (loop0): Remounting filesystem read-only [ 92.516866][ T59] page: refcount:4 mapcount:0 mapping:ffff888077150b10 index:0xb pfn:0x26cae [ 92.525894][ T59] memcg:ffff8881404d8000 [ 92.530184][ T59] aops:f2fs_node_aops ino:1 [ 92.534690][ T59] flags: 0xfff00000004018(uptodate|dirty|private|node=0|zone=1|lastcpupid=0x7ff) [ 92.543867][ T59] raw: 00fff00000004018 ffffea00008d5a88 ffffea0001e37d08 ffff888077150b10 [ 92.552507][ T59] raw: 000000000000000b 0000000000000009 00000004ffffffff ffff8881404d8000 [ 92.561138][ T59] page dumped because: VM_BUG_ON_FOLIO(!folio_test_locked(folio)) [ 92.568985][ T59] page_owner tracks the page as allocated [ 92.574746][ T59] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x40c40(GFP_NOFS|__GFP_COMP), pid 5830, tgid 5830 (syz-executor394), ts 92016951233, free_ts 91936270192 [ 92.591964][ T59] post_alloc_hook+0x240/0x2a0 [ 92.596782][ T59] get_page_from_freelist+0x21d5/0x22b0 [ 92.602353][ T59] __alloc_frozen_pages_noprof+0x181/0x370 [ 92.608220][ T59] alloc_pages_mpol+0x232/0x4a0 [ 92.613095][ T59] alloc_pages_noprof+0xa9/0x190 [ 92.618098][ T59] folio_alloc_noprof+0x1e/0x30 [ 92.623013][ T59] filemap_alloc_folio_noprof+0xdf/0x470 [ 92.628729][ T59] __filemap_get_folio+0x3f2/0xaf0 [ 92.633870][ T59] f2fs_new_node_folio+0x131/0xa40 [ 92.639068][ T59] f2fs_get_dnode_of_data+0x7d3/0x1b50 [ 92.644572][ T59] f2fs_reserve_block+0x53/0x310 [ 92.649611][ T59] f2fs_get_new_data_folio+0x138/0x870 [ 92.655127][ T59] f2fs_add_regular_entry+0x5a3/0xc10 [ 92.660503][ T59] f2fs_add_dentry+0xda/0x1d0 [ 92.665303][ T59] f2fs_do_add_link+0x20f/0x3b0 [ 92.670181][ T59] f2fs_create+0x337/0x5c0 [ 92.674686][ T59] page last free pid 0 tgid 0 stack trace: [ 92.680802][ T59] __free_frozen_pages+0xc65/0xe60 [ 92.686006][ T59] rcu_core+0xca8/0x1710 [ 92.690251][ T59] handle_softirqs+0x286/0x870 [ 92.695181][ T59] __irq_exit_rcu+0xca/0x1f0 [ 92.699799][ T59] irq_exit_rcu+0x9/0x30 [ 92.704040][ T59] sysvec_apic_timer_interrupt+0xa6/0xc0 [ 92.709744][ T59] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 92.716172][ T59] ------------[ cut here ]------------ [ 92.721639][ T59] kernel BUG at mm/filemap.c:1498! [ 92.726926][ T59] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI [ 92.733205][ T59] CPU: 0 UID: 0 PID: 59 Comm: kworker/u8:4 Not tainted 6.16.0-rc1-syzkaller-00005-g488ef3560196 #0 PREEMPT(full) [ 92.745171][ T59] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 92.755222][ T59] Workqueue: writeback wb_workfn (flush-7:0) [ 92.761214][ T59] RIP: 0010:folio_unlock+0x13d/0x160 [ 92.766492][ T59] 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 [ 92.786102][ T59] RSP: 0018:ffffc9000210ee28 EFLAGS: 00010246 [ 92.792185][ T59] RAX: 4bd66a0524792600 RBX: ffffea00009b2b80 RCX: 0000000000000000 [ 92.800163][ T59] RDX: 0000000000000006 RSI: ffffffff8d96d7f4 RDI: 00000000ffffffff [ 92.808141][ T59] RBP: ffffc9000210f110 R08: ffffffff8f9fdef7 R09: 1ffffffff1f3fbde [ 92.816123][ T59] R10: dffffc0000000000 R11: fffffbfff1f3fbdf R12: 1ffffd4000136571 [ 92.824142][ T59] R13: 00fff00000004018 R14: ffffea00009b2b88 R15: dffffc0000000000 [ 92.832302][ T59] FS: 0000000000000000(0000) GS:ffff888125c86000(0000) knlGS:0000000000000000 [ 92.841236][ T59] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 92.847823][ T59] CR2: 0000555559b516f8 CR3: 000000007859a000 CR4: 00000000003526f0 [ 92.855805][ T59] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 92.863784][ T59] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 92.871763][ T59] Call Trace: [ 92.875047][ T59] [ 92.877998][ T59] f2fs_sync_node_pages+0x180a/0x1a10 [ 92.883395][ T59] ? __pfx_f2fs_sync_node_pages+0x10/0x10 [ 92.889133][ T59] ? __percpu_counter_sum+0x1c2/0x1e0 [ 92.894529][ T59] ? rcu_is_watching+0x15/0xb0 [ 92.899306][ T59] ? blk_start_plug+0x52/0x1b0 [ 92.904079][ T59] f2fs_write_node_pages+0x303/0x6e0 [ 92.909380][ T59] ? __pfx_f2fs_write_node_pages+0x10/0x10 [ 92.915200][ T59] ? __pfx_f2fs_write_node_pages+0x10/0x10 [ 92.921016][ T59] do_writepages+0x32b/0x550 [ 92.925619][ T59] __writeback_single_inode+0x145/0xff0 [ 92.931170][ T59] ? wbc_attach_and_unlock_inode+0x3f0/0x5d0 [ 92.937196][ T59] writeback_sb_inodes+0x6b5/0x1000 [ 92.942413][ T59] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 92.948061][ T59] ? rcu_is_watching+0x15/0xb0 [ 92.952874][ T59] wb_writeback+0x43b/0xaf0 [ 92.957388][ T59] ? queue_io+0x351/0x590 [ 92.961724][ T59] ? __pfx_wb_writeback+0x10/0x10 [ 92.966754][ T59] ? _raw_spin_unlock_irq+0x23/0x50 [ 92.971961][ T59] wb_workfn+0x409/0xef0 [ 92.976221][ T59] ? __pfx_wb_workfn+0x10/0x10 [ 92.980993][ T59] ? __lock_acquire+0xab9/0xd20 [ 92.985857][ T59] ? process_scheduled_works+0x9ef/0x17b0 [ 92.991588][ T59] ? _raw_spin_unlock_irq+0x23/0x50 [ 92.996798][ T59] ? process_scheduled_works+0x9ef/0x17b0 [ 93.002528][ T59] ? process_scheduled_works+0x9ef/0x17b0 [ 93.008257][ T59] process_scheduled_works+0xade/0x17b0 [ 93.013823][ T59] ? __pfx_process_scheduled_works+0x10/0x10 [ 93.019815][ T59] worker_thread+0x8a0/0xda0 [ 93.024413][ T59] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 93.030748][ T59] ? __kthread_parkme+0x7b/0x200 [ 93.035705][ T59] kthread+0x70e/0x8a0 [ 93.039778][ T59] ? __pfx_worker_thread+0x10/0x10 [ 93.044897][ T59] ? __pfx_kthread+0x10/0x10 [ 93.049494][ T59] ? _raw_spin_unlock_irq+0x23/0x50 [ 93.054702][ T59] ? lockdep_hardirqs_on+0x9c/0x150 [ 93.059912][ T59] ? __pfx_kthread+0x10/0x10 [ 93.064510][ T59] ret_from_fork+0x3fc/0x770 [ 93.069119][ T59] ? __pfx_ret_from_fork+0x10/0x10 [ 93.074243][ T59] ? __switch_to_asm+0x39/0x70 [ 93.079010][ T59] ? __switch_to_asm+0x33/0x70 [ 93.083778][ T59] ? __pfx_kthread+0x10/0x10 [ 93.088374][ T59] ret_from_fork_asm+0x1a/0x30 [ 93.093150][ T59] [ 93.096173][ T59] Modules linked in: [ 93.100252][ T59] ---[ end trace 0000000000000000 ]--- [ 93.105871][ T59] RIP: 0010:folio_unlock+0x13d/0x160 [ 93.111186][ T59] 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 [ 93.130878][ T59] RSP: 0018:ffffc9000210ee28 EFLAGS: 00010246 [ 93.136986][ T59] RAX: 4bd66a0524792600 RBX: ffffea00009b2b80 RCX: 0000000000000000 [ 93.144995][ T59] RDX: 0000000000000006 RSI: ffffffff8d96d7f4 RDI: 00000000ffffffff [ 93.152979][ T59] RBP: ffffc9000210f110 R08: ffffffff8f9fdef7 R09: 1ffffffff1f3fbde [ 93.160991][ T59] R10: dffffc0000000000 R11: fffffbfff1f3fbdf R12: 1ffffd4000136571 [ 93.169030][ T59] R13: 00fff00000004018 R14: ffffea00009b2b88 R15: dffffc0000000000 [ 93.177058][ T59] FS: 0000000000000000(0000) GS:ffff888125c86000(0000) knlGS:0000000000000000 [ 93.186042][ T59] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 93.192637][ T59] CR2: 0000555559b516f8 CR3: 000000007859a000 CR4: 00000000003526f0 [ 93.200668][ T59] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 93.208695][ T59] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 93.216808][ T59] Kernel panic - not syncing: Fatal exception [ 93.223043][ T59] Kernel Offset: disabled [ 93.227365][ T59] Rebooting in 86400 seconds..