./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor176673722 <...> Warning: Permanently added '10.128.1.97' (ED25519) to the list of known hosts. execve("./syz-executor176673722", ["./syz-executor176673722"], 0x7ffe30234200 /* 10 vars */) = 0 brk(NULL) = 0x555560ea2000 brk(0x555560ea2d00) = 0x555560ea2d00 arch_prctl(ARCH_SET_FS, 0x555560ea2380) = 0 set_tid_address(0x555560ea2650) = 5092 set_robust_list(0x555560ea2660, 24) = 0 rseq(0x555560ea2ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor176673722", 4096) = 27 getrandom("\x74\xf3\x91\x73\xce\x9e\xe1\x71", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555560ea2d00 brk(0x555560ec3d00) = 0x555560ec3d00 brk(0x555560ec4000) = 0x555560ec4000 mprotect(0x7f0155fa8000, 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 5094 attached , child_tidptr=0x555560ea2650) = 5094 [pid 5094] set_robust_list(0x555560ea2660, 24) = 0 [pid 5094] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5094] setpgid(0, 0) = 0 [pid 5094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5094] write(3, "1000", 4) = 4 [pid 5094] close(3) = 0 executing program [pid 5094] write(1, "executing program\n", 18) = 18 [pid 5094] memfd_create("syzkaller", 0) = 3 [pid 5094] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f014da00000 [pid 5094] 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 5094] munmap(0x7f014da00000, 138412032) = 0 [pid 5094] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5094] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5094] close(3) = 0 [pid 5094] close(4) = 0 [pid 5094] mkdir("./file2", 0777) = 0 [ 58.675732][ T5094] loop0: detected capacity change from 0 to 40427 [pid 5094] mount("/dev/loop0", "./file2", "f2fs", 0, "") = 0 [pid 5094] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 [pid 5094] chdir("./file2") = 0 [pid 5094] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5094] openat(AT_FDCWD, "cpuacct.usage_sys", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5094] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 5 [pid 5094] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0 [pid 5094] open("./bus", O_RDONLY) = 6 [pid 5094] ioctl(6, BLKROSET, [63]) = 0 [pid 5094] write(4, "#! ./file0\n", 11) = 11 [pid 5094] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000 [ 58.726177][ T5094] F2FS-fs (loop0): Found nat_bits in checkpoint [ 58.758682][ T5094] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5 [ 58.794735][ T5094] ------------[ cut here ]------------ [ 58.800496][ T5094] kernel BUG at fs/f2fs/file.c:105! [ 58.805715][ T5094] Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI [ 58.805731][ T5094] CPU: 0 PID: 5094 Comm: syz-executor176 Not tainted 6.10.0-rc1-next-20240531-syzkaller #0 [ 58.805741][ T5094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 58.805748][ T5094] RIP: 0010:f2fs_vm_page_mkwrite+0x109d/0x1440 [ 58.805781][ T5094] Code: 00 89 de e8 95 de aa fd 31 ff 89 de e8 8c de aa fd 45 84 ff 0f 85 8d 03 00 00 e8 7e db aa fd e9 16 f3 ff ff e8 74 db aa fd 90 <0f> 0b e8 6c db aa fd 4c 89 ff 48 c7 c6 40 66 0f 8c e8 fd 9d f4 fd [ 58.805788][ T5094] RSP: 0018:ffffc9000336f2a0 EFLAGS: 00010293 [ 58.805799][ T5094] RAX: ffffffff83eba07c RBX: 0000000000000400 RCX: ffff888076a99e00 [ 58.805806][ T5094] RDX: 0000000000000000 RSI: 0000000000000400 RDI: 0000000000000000 [ 58.805813][ T5094] RBP: ffffc9000336f408 R08: ffffffff83eb95fd R09: 1ffff1100fc522c6 [ 58.805820][ T5094] R10: dffffc0000000000 R11: ffffed100fc522c7 R12: ffff88807e291630 [ 58.805827][ T5094] R13: 0000000020010602 R14: dffffc0000000000 R15: 0000000020010602 [ 58.805834][ T5094] FS: 0000555560ea2380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 58.805842][ T5094] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.805849][ T5094] CR2: 0000000020000280 CR3: 000000007fa48000 CR4: 00000000003506f0 [ 58.805858][ T5094] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 58.805864][ T5094] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 58.805870][ T5094] Call Trace: [ 58.805877][ T5094] [ 58.805881][ T5094] ? __die_body+0x88/0xe0 [ 58.805896][ T5094] ? die+0xcf/0x110 [ 58.805908][ T5094] ? do_trap+0x15a/0x3a0 [ 58.805920][ T5094] ? f2fs_vm_page_mkwrite+0x109d/0x1440 [ 58.805937][ T5094] ? do_error_trap+0x1dc/0x2c0 [ 58.805955][ T5094] ? f2fs_vm_page_mkwrite+0x109d/0x1440 [ 58.805978][ T5094] ? __pfx_do_error_trap+0x10/0x10 [ 58.805999][ T5094] ? handle_invalid_op+0x34/0x40 [ 58.806017][ T5094] ? f2fs_vm_page_mkwrite+0x109d/0x1440 [ 58.806037][ T5094] ? exc_invalid_op+0x38/0x50 [ 58.806063][ T5094] ? asm_exc_invalid_op+0x1a/0x20 [ 58.806087][ T5094] ? f2fs_vm_page_mkwrite+0x61d/0x1440 [ 58.806116][ T5094] ? f2fs_vm_page_mkwrite+0x109c/0x1440 [ 58.806141][ T5094] ? f2fs_vm_page_mkwrite+0x109d/0x1440 [ 58.806170][ T5094] ? __pfx_f2fs_vm_page_mkwrite+0x10/0x10 [ 58.806193][ T5094] ? __pfx_lock_release+0x10/0x10 [ 58.806214][ T5094] do_page_mkwrite+0x19b/0x480 [ 58.806227][ T5094] do_wp_page+0x23fd/0x5310 [ 58.806241][ T5094] ? __pfx_do_wp_page+0x10/0x10 [ 58.806252][ T5094] ? __pfx_lock_acquire+0x10/0x10 [ 58.806263][ T5094] ? do_raw_spin_lock+0x14f/0x370 [ 58.806278][ T5094] ? __lock_acquire+0x1359/0x2000 [ 58.806290][ T5094] handle_pte_fault+0x119a/0x7130 [ 58.806302][ T5094] ? validate_chain+0x11e/0x5920 [ 58.806314][ T5094] ? __pfx_validate_chain+0x10/0x10 [ 58.806326][ T5094] ? validate_chain+0x11e/0x5920 [ 58.806339][ T5094] ? __pfx_handle_pte_fault+0x10/0x10 [ 58.806351][ T5094] ? __lock_acquire+0x1359/0x2000 [ 58.806371][ T5094] ? __pfx_lock_release+0x10/0x10 [ 58.806383][ T5094] handle_mm_fault+0x10df/0x1ba0 [ 58.806399][ T5094] ? __pfx_handle_mm_fault+0x10/0x10 [ 58.806412][ T5094] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 58.806423][ T5094] ? lock_mm_and_find_vma+0x9c/0x2f0 [ 58.806434][ T5094] exc_page_fault+0x2b9/0x8c0 [ 58.806446][ T5094] asm_exc_page_fault+0x26/0x30 [ 58.806457][ T5094] RIP: 0010:rep_movs_alternative+0x33/0x70 [ 58.806471][ T5094] 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 [ 58.806479][ T5094] RSP: 0018:ffffc9000336fd50 EFLAGS: 00050212 [ 58.806488][ T5094] RAX: 00000000665d0372 RBX: 0000000020000290 RCX: 0000000000000010 [ 58.806494][ T5094] RDX: 0000000000000000 RSI: ffffc9000336fdc0 RDI: 0000000020000280 [ 58.806501][ T5094] RBP: ffffc9000336fe30 R08: ffffc9000336fdcf R09: 1ffff9200066dfb9 [ 58.806508][ T5094] R10: dffffc0000000000 R11: fffff5200066dfba R12: 0000000000000010 [ 58.806514][ T5094] R13: dffffc0000000000 R14: 0000000020000280 R15: ffffc9000336fdc0 [ 58.806526][ T5094] _copy_to_user+0x86/0xb0 [ 58.806537][ T5094] put_timespec64+0xfa/0x150 [ 58.806550][ T5094] ? __pfx_ktime_get_real_ts64+0x10/0x10 [ 58.806561][ T5094] ? __pfx_put_timespec64+0x10/0x10 [ 58.806573][ T5094] ? ptrace_notify+0x279/0x380 [ 58.806589][ T5094] __x64_sys_clock_gettime+0x1d7/0x230 [ 58.806602][ T5094] ? __pfx___x64_sys_clock_gettime+0x10/0x10 [ 58.806614][ T5094] ? do_syscall_64+0x100/0x230 [ 58.806626][ T5094] do_syscall_64+0xf3/0x230 [ 58.806637][ T5094] ? clear_bhb_loop+0x35/0x90 [ 58.806650][ T5094] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 58.806661][ T5094] RIP: 0033:0x7f0155f2fc19 [ 58.806674][ T5094] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 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 b8 ff ff ff f7 d8 64 89 01 48 [ 58.806682][ T5094] RSP: 002b:00007ffc52fa7868 EFLAGS: 00000246 ORIG_RAX: 00000000000000e4 [ 58.806691][ T5094] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f0155f2fc19 [ 58.806698][ T5094] RDX: 00007f0155f2fc19 RSI: 0000000020000280 RDI: 0000000000000000 [ 58.806704][ T5094] RBP: 00007f0155fa85f0 R08: 0000000000000000 R09: 0000000000000000 [ 58.806710][ T5094] R10: 0000000000000004 R11: 0000000000000246 R12: 00007ffc52fa78a0 [ 58.806716][ T5094] R13: 00007ffc52fa7ac8 R14: 431bde82d7b634db R15: 00007f0155f7803b [ 58.806727][ T5094] [ 58.806730][ T5094] Modules linked in: [ 58.806742][ T5094] ---[ end trace 0000000000000000 ]--- [ 59.340027][ T5094] RIP: 0010:f2fs_vm_page_mkwrite+0x109d/0x1440 [ 59.346235][ T5094] Code: 00 89 de e8 95 de aa fd 31 ff 89 de e8 8c de aa fd 45 84 ff 0f 85 8d 03 00 00 e8 7e db aa fd e9 16 f3 ff ff e8 74 db aa fd 90 <0f> 0b e8 6c db aa fd 4c 89 ff 48 c7 c6 40 66 0f 8c e8 fd 9d f4 fd [ 59.365930][ T5094] RSP: 0018:ffffc9000336f2a0 EFLAGS: 00010293 [ 59.372175][ T5094] RAX: ffffffff83eba07c RBX: 0000000000000400 RCX: ffff888076a99e00 [ 59.380179][ T5094] RDX: 0000000000000000 RSI: 0000000000000400 RDI: 0000000000000000 [ 59.388151][ T5094] RBP: ffffc9000336f408 R08: ffffffff83eb95fd R09: 1ffff1100fc522c6 [ 59.396182][ T5094] R10: dffffc0000000000 R11: ffffed100fc522c7 R12: ffff88807e291630 [ 59.404197][ T5094] R13: 0000000020010602 R14: dffffc0000000000 R15: 0000000020010602 [ 59.412194][ T5094] FS: 0000555560ea2380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 59.421168][ T5094] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.427754][ T5094] CR2: 0000561f3aaca000 CR3: 000000007fa48000 CR4: 00000000003506f0 [ 59.435768][ T5094] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.443796][ T5094] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.451807][ T5094] Kernel panic - not syncing: Fatal exception [ 59.457971][ T5094] Kernel Offset: disabled [ 59.462281][ T5094] Rebooting in 86400 seconds..