./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2746436996 <...> Warning: Permanently added '10.128.10.16' (ED25519) to the list of known hosts. execve("./syz-executor2746436996", ["./syz-executor2746436996"], 0x7fff1c748170 /* 10 vars */) = 0 brk(NULL) = 0x5555846a3000 brk(0x5555846a3d00) = 0x5555846a3d00 arch_prctl(ARCH_SET_FS, 0x5555846a3380) = 0 set_tid_address(0x5555846a3650) = 5823 set_robust_list(0x5555846a3660, 24) = 0 rseq(0x5555846a3ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2746436996", 4096) = 28 getrandom("\xc8\xed\x7f\x90\x14\xa5\xae\x55", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555846a3d00 brk(0x5555846c4d00) = 0x5555846c4d00 brk(0x5555846c5000) = 0x5555846c5000 mprotect(0x7f7566f4e000, 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 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 5825 attached , child_tidptr=0x5555846a3650) = 5825 [pid 5825] set_robust_list(0x5555846a3660, 24) = 0 [pid 5825] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5825] setpgid(0, 0) = 0 [pid 5825] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5825] write(3, "1000", 4) = 4 [pid 5825] close(3executing program ) = 0 [pid 5825] write(1, "executing program\n", 18) = 18 [pid 5825] memfd_create("syzkaller", 0) = 3 [pid 5825] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f755ea00000 [pid 5825] 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 5825] munmap(0x7f755ea00000, 138412032) = 0 [pid 5825] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5825] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5825] close(3) = 0 [pid 5825] close(4) = 0 [pid 5825] mkdir("./file1", 0777) = 0 [ 88.909472][ T5825] loop0: detected capacity change from 0 to 40427 [ 88.941855][ T5825] F2FS-fs (loop0): build fault injection attr: rate: 771, type: 0x3fffff [ 88.961741][ T5825] F2FS-fs (loop0): invalid crc value [pid 5825] mount("/dev/loop0", "./file1", "f2fs", MS_NOSUID|MS_NOEXEC|MS_NODIRATIME|MS_SILENT|MS_POSIXACL|MS_STRICTATIME, "nodiscard,background_gc=sync,acl,fsync_mode=strict,inline_xattr,fsync_mode=posix,discard_unit=segmen"...) = 0 [pid 5825] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5825] chdir("./file1") = 0 [pid 5825] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 89.027072][ T5825] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5 [pid 5825] openat(AT_FDCWD, "./file0", O_WRONLY|O_CREAT|O_EXCL|O_NOCTTY|O_TRUNC|O_APPEND|O_SYNC|O_NOFOLLOW|O_CLOEXEC|FASYNC, 0102) = 4 [pid 5825] ioctl(4, F2FS_IOC_COMMIT_ATOMIC_WRITE, 0) = 0 [pid 5825] ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = 0 [pid 5825] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 30233) = -1 EIO (Input/output error) [ 89.118729][ T5825] syz-executor274: attempt to access beyond end of device [ 89.118729][ T5825] loop0: rw=2049, sector=45096, nr_sectors = 64 limit=40427 [ 89.144820][ T5825] F2FS-fs (loop0): inject inconsistent footer in sanity_check_node_footer of f2fs_get_dnode_of_data+0x251/0x1c30 [ 89.157139][ T5825] F2FS-fs (loop0): inconsistent node block, node_type:1, nid:10, node_footer[nid:10,ino:10,ofs:0,cpver:10241045589465957861,blkaddr:4615] [ 89.175080][ T5825] ------------[ cut here ]------------ [ 89.180564][ T5825] kernel BUG at fs/f2fs/segment.c:2586! [ 89.186296][ T5825] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI [ 89.192587][ T5825] CPU: 1 UID: 0 PID: 5825 Comm: syz-executor274 Not tainted 6.15.0-rc7-syzkaller-00014-gd608703fcdd9 #0 PREEMPT(full) [ 89.204994][ T5825] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 89.215066][ T5825] RIP: 0010:f2fs_invalidate_blocks+0xa02/0xa10 [ 89.221236][ T5825] Code: 89 d1 80 e1 07 80 c1 03 38 c1 0f 8c eb fa ff ff 48 8b 7c 24 08 e8 be c9 1a fe 48 8b 54 24 08 e9 d7 fa ff ff e8 5f f4 ba fd 90 <0f> 0b 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 [ 89.241370][ T5825] RSP: 0018:ffffc9000419f5d8 EFLAGS: 00010293 [ 89.247446][ T5825] RAX: ffffffff8404fc81 RBX: ffff8880340fcc00 RCX: ffff8880332a8000 [ 89.255431][ T5825] RDX: 0000000000000000 RSI: ffffffff8e53f220 RDI: 0000000000000000 [ 89.263401][ T5825] RBP: 0000000000000001 R08: ffff8880332a8000 R09: 0000000000000003 [ 89.271391][ T5825] R10: 00000000ffffffff R11: 0000000000000000 R12: dffffc0000000000 [ 89.279379][ T5825] R13: ffff88806e92c000 R14: 00000000ffffffff R15: 0000000000000000 [ 89.287389][ T5825] FS: 00005555846a3380(0000) GS:ffff8881261f6000(0000) knlGS:0000000000000000 [ 89.296338][ T5825] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.302924][ T5825] CR2: 0000200000006000 CR3: 000000006ed52000 CR4: 00000000003526f0 [ 89.310928][ T5825] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 89.318899][ T5825] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 89.326878][ T5825] Call Trace: [ 89.330155][ T5825] [ 89.333102][ T5825] __replace_atomic_write_block+0x498/0x1240 [ 89.339122][ T5825] ? __pfx___replace_atomic_write_block+0x10/0x10 [ 89.345561][ T5825] ? lockdep_hardirqs_on+0x9c/0x150 [ 89.350791][ T5825] ? kmem_cache_free+0x192/0x3f0 [ 89.355740][ T5825] f2fs_commit_atomic_write+0xefc/0x11b0 [ 89.361388][ T5825] ? __pfx_f2fs_commit_atomic_write+0x10/0x10 [ 89.367501][ T5825] ? __pfx_down_write+0x10/0x10 [ 89.372370][ T5825] ? sb_start_write+0x110/0x1c0 [ 89.377227][ T5825] ? mnt_want_write_file+0x164/0x200 [ 89.382516][ T5825] __f2fs_ioctl+0x3f11/0xae80 [ 89.387210][ T5825] ? __se_sys_ioctl+0x47/0x170 [ 89.391992][ T5825] ? do_syscall_64+0xf6/0x210 [ 89.396680][ T5825] ? __pfx_do_vfs_ioctl+0x10/0x10 [ 89.401805][ T5825] ? kasan_quarantine_put+0xdd/0x220 [ 89.407098][ T5825] ? __pfx___f2fs_ioctl+0x10/0x10 [ 89.412123][ T5825] ? tomoyo_path_number_perm+0x1bc/0x5a0 [ 89.417756][ T5825] ? tomoyo_path_number_perm+0x1bc/0x5a0 [ 89.423390][ T5825] ? tomoyo_path_number_perm+0x4e2/0x5a0 [ 89.429206][ T5825] ? tomoyo_path_number_perm+0x1bc/0x5a0 [ 89.434846][ T5825] ? __pfx_tomoyo_path_number_perm+0x10/0x10 [ 89.440829][ T5825] ? __pfx__raw_spin_lock_irq+0x10/0x10 [ 89.446388][ T5825] ? __asan_memset+0x22/0x50 [ 89.451010][ T5825] ? smack_file_ioctl+0x24a/0x340 [ 89.456038][ T5825] ? __pfx_smack_file_ioctl+0x10/0x10 [ 89.461424][ T5825] ? rcu_is_watching+0x15/0xb0 [ 89.466200][ T5825] ? f2fs_ioctl+0x135/0x250 [ 89.470709][ T5825] ? __pfx_f2fs_ioctl+0x10/0x10 [ 89.475575][ T5825] __se_sys_ioctl+0xf9/0x170 [ 89.480174][ T5825] do_syscall_64+0xf6/0x210 [ 89.484723][ T5825] ? clear_bhb_loop+0x60/0xb0 [ 89.489444][ T5825] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 89.495368][ T5825] RIP: 0033:0x7f7566ed5b59 [ 89.499816][ T5825] 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 [ 89.519447][ T5825] RSP: 002b:00007ffef05ec848 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 89.527873][ T5825] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7566ed5b59 [ 89.535851][ T5825] RDX: 0000000000000000 RSI: 000000000000f502 RDI: 0000000000000004 [ 89.543856][ T5825] RBP: 00007f7566f4e5f0 R08: 00005555846a44c0 R09: 00005555846a44c0 [ 89.551829][ T5825] R10: 00005555846a44c0 R11: 0000000000000246 R12: 00007ffef05ec870 [ 89.559885][ T5825] R13: 00007ffef05eca98 R14: 431bde82d7b634db R15: 00007f7566f1e03b [ 89.567894][ T5825] [ 89.570915][ T5825] Modules linked in: [ 89.575027][ T5825] ---[ end trace 0000000000000000 ]--- [ 89.580557][ T5825] RIP: 0010:f2fs_invalidate_blocks+0xa02/0xa10 [ 89.586921][ T5825] Code: 89 d1 80 e1 07 80 c1 03 38 c1 0f 8c eb fa ff ff 48 8b 7c 24 08 e8 be c9 1a fe 48 8b 54 24 08 e9 d7 fa ff ff e8 5f f4 ba fd 90 <0f> 0b 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 [ 89.606713][ T5825] RSP: 0018:ffffc9000419f5d8 EFLAGS: 00010293 [ 89.612814][ T5825] RAX: ffffffff8404fc81 RBX: ffff8880340fcc00 RCX: ffff8880332a8000 [ 89.620827][ T5825] RDX: 0000000000000000 RSI: ffffffff8e53f220 RDI: 0000000000000000 [ 89.628864][ T5825] RBP: 0000000000000001 R08: ffff8880332a8000 R09: 0000000000000003 [ 89.636888][ T5825] R10: 00000000ffffffff R11: 0000000000000000 R12: dffffc0000000000 [ 89.644926][ T5825] R13: ffff88806e92c000 R14: 00000000ffffffff R15: 0000000000000000 [ 89.652924][ T5825] FS: 00005555846a3380(0000) GS:ffff8881260f6000(0000) knlGS:0000000000000000 [ 89.661918][ T5825] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.668559][ T5825] CR2: 00007f684d7f8000 CR3: 000000006ed52000 CR4: 00000000003526f0 [ 89.676598][ T5825] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 89.684648][ T5825] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 89.692662][ T5825] Kernel panic - not syncing: Fatal exception [ 89.699091][ T5825] Kernel Offset: disabled [ 89.703439][ T5825] Rebooting in 86400 seconds..