./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1209799629 <...> Warning: Permanently added '10.128.0.127' (ED25519) to the list of known hosts. execve("./syz-executor1209799629", ["./syz-executor1209799629"], 0x7fffbb8c82a0 /* 10 vars */) = 0 brk(NULL) = 0x55558b8d7000 brk(0x55558b8d7d00) = 0x55558b8d7d00 arch_prctl(ARCH_SET_FS, 0x55558b8d7380) = 0 set_tid_address(0x55558b8d7650) = 5822 set_robust_list(0x55558b8d7660, 24) = 0 rseq(0x55558b8d7ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1209799629", 4096) = 28 getrandom("\xad\xc7\x87\x38\xf7\x01\xf6\xc0", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558b8d7d00 brk(0x55558b8f8d00) = 0x55558b8f8d00 brk(0x55558b8f9000) = 0x55558b8f9000 mprotect(0x7efe4bac3000, 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 write(1, "executing program\n", 18executing program ) = 18 memfd_create("syzkaller", 0) = 3 mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efe43600000 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 munmap(0x7efe43600000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 close(4) = 0 mkdir("./file1", 0777) = 0 [ 87.619315][ T5822] loop0: detected capacity change from 0 to 40427 [ 87.660388][ T5822] F2FS-fs (loop0): build fault injection attr: rate: 771, type: 0x3fffff [ 87.673031][ T5822] F2FS-fs (loop0): invalid crc value 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 openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 chdir("./file1") = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) 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 [ 87.737969][ T5822] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5 ioctl(4, F2FS_IOC_COMMIT_ATOMIC_WRITE, 0) = 0 ioctl(4, F2FS_IOC_START_ATOMIC_WRITE, 0) = 0 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) [ 87.832273][ T5822] syz-executor120: attempt to access beyond end of device [ 87.832273][ T5822] loop0: rw=2049, sector=45096, nr_sectors = 64 limit=40427 [ 87.848485][ T5822] F2FS-fs (loop0): inject inconsistent footer in sanity_check_node_footer of f2fs_get_dnode_of_data+0x251/0x1c30 [ 87.860580][ T5822] F2FS-fs (loop0): inconsistent node block, node_type:1, nid:10, node_footer[nid:10,ino:10,ofs:0,cpver:10241045589465957861,blkaddr:4615] [ 87.878212][ T5822] ------------[ cut here ]------------ [ 87.883706][ T5822] kernel BUG at fs/f2fs/segment.c:2586! [ 87.889855][ T5822] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI [ 87.896126][ T5822] CPU: 0 UID: 0 PID: 5822 Comm: syz-executor120 Not tainted 6.15.0-rc7-syzkaller-00014-gd608703fcdd9 #0 PREEMPT(full) [ 87.908531][ T5822] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 87.918588][ T5822] RIP: 0010:f2fs_invalidate_blocks+0xa02/0xa10 [ 87.924750][ T5822] 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 [ 87.944354][ T5822] RSP: 0018:ffffc9000448f5d8 EFLAGS: 00010293 [ 87.950450][ T5822] RAX: ffffffff8404fc81 RBX: ffff88805a4dac00 RCX: ffff888067503c00 [ 87.958420][ T5822] RDX: 0000000000000000 RSI: ffffffff8e53f220 RDI: 0000000000000000 [ 87.966387][ T5822] RBP: 0000000000000001 R08: ffff888067503c00 R09: 0000000000000003 [ 87.974350][ T5822] R10: 00000000ffffffff R11: 0000000000000000 R12: dffffc0000000000 [ 87.982313][ T5822] R13: ffff888030660000 R14: 00000000ffffffff R15: 0000000000000000 [ 87.990277][ T5822] FS: 000055558b8d7380(0000) GS:ffff8881260f6000(0000) knlGS:0000000000000000 [ 87.999201][ T5822] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 88.005777][ T5822] CR2: 000000000066c7e0 CR3: 0000000033a3a000 CR4: 00000000003526f0 [ 88.013746][ T5822] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 88.021713][ T5822] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 88.029683][ T5822] Call Trace: [ 88.032953][ T5822] [ 88.035882][ T5822] __replace_atomic_write_block+0x498/0x1240 [ 88.041867][ T5822] ? __pfx___replace_atomic_write_block+0x10/0x10 [ 88.048310][ T5822] ? lockdep_hardirqs_on+0x9c/0x150 [ 88.053519][ T5822] ? kmem_cache_free+0x192/0x3f0 [ 88.058478][ T5822] f2fs_commit_atomic_write+0xefc/0x11b0 [ 88.064137][ T5822] ? __pfx_f2fs_commit_atomic_write+0x10/0x10 [ 88.070228][ T5822] ? __pfx_down_write+0x10/0x10 [ 88.075085][ T5822] ? sb_start_write+0x110/0x1c0 [ 88.079942][ T5822] ? mnt_want_write_file+0x164/0x200 [ 88.085225][ T5822] __f2fs_ioctl+0x3f11/0xae80 [ 88.089917][ T5822] ? __se_sys_ioctl+0x47/0x170 [ 88.094679][ T5822] ? do_syscall_64+0xf6/0x210 [ 88.099355][ T5822] ? __pfx_do_vfs_ioctl+0x10/0x10 [ 88.104386][ T5822] ? kasan_quarantine_put+0xdd/0x220 [ 88.109668][ T5822] ? __pfx___f2fs_ioctl+0x10/0x10 [ 88.114689][ T5822] ? tomoyo_path_number_perm+0x1bc/0x5a0 [ 88.120316][ T5822] ? tomoyo_path_number_perm+0x1bc/0x5a0 [ 88.125942][ T5822] ? tomoyo_path_number_perm+0x4e2/0x5a0 [ 88.131567][ T5822] ? tomoyo_path_number_perm+0x1bc/0x5a0 [ 88.137195][ T5822] ? __pfx_tomoyo_path_number_perm+0x10/0x10 [ 88.143168][ T5822] ? __pfx__raw_spin_lock_irq+0x10/0x10 [ 88.148715][ T5822] ? __asan_memset+0x22/0x50 [ 88.153299][ T5822] ? smack_file_ioctl+0x24a/0x340 [ 88.158315][ T5822] ? __pfx_smack_file_ioctl+0x10/0x10 [ 88.163680][ T5822] ? rcu_is_watching+0x15/0xb0 [ 88.168444][ T5822] ? f2fs_ioctl+0x135/0x250 [ 88.172937][ T5822] ? __pfx_f2fs_ioctl+0x10/0x10 [ 88.177788][ T5822] __se_sys_ioctl+0xf9/0x170 [ 88.182378][ T5822] do_syscall_64+0xf6/0x210 [ 88.186897][ T5822] ? asm_common_interrupt+0x26/0x40 [ 88.192087][ T5822] ? clear_bhb_loop+0x60/0xb0 [ 88.196773][ T5822] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.202658][ T5822] RIP: 0033:0x7efe4ba4b6f9 [ 88.207077][ T5822] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 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 [ 88.226680][ T5822] RSP: 002b:00007ffcadaba5e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 88.235092][ T5822] RAX: ffffffffffffffda RBX: 0000200000000000 RCX: 00007efe4ba4b6f9 [ 88.243058][ T5822] RDX: 0000000000000000 RSI: 000000000000f502 RDI: 0000000000000004 [ 88.251023][ T5822] RBP: 00007efe4bac3610 R08: 00007ffcadaba7b8 R09: 00007ffcadaba7b8 [ 88.258992][ T5822] R10: 00007ffcadaba7b8 R11: 0000000000000246 R12: 0000000000000001 [ 88.266957][ T5822] R13: 00007ffcadaba7a8 R14: 0000000000000001 R15: 0000000000000001 [ 88.274926][ T5822] [ 88.277936][ T5822] Modules linked in: [ 88.281964][ T5822] ---[ end trace 0000000000000000 ]--- [ 88.287470][ T5822] RIP: 0010:f2fs_invalidate_blocks+0xa02/0xa10 [ 88.293663][ T5822] 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 [ 88.313326][ T5822] RSP: 0018:ffffc9000448f5d8 EFLAGS: 00010293 [ 88.319442][ T5822] RAX: ffffffff8404fc81 RBX: ffff88805a4dac00 RCX: ffff888067503c00 [ 88.327463][ T5822] RDX: 0000000000000000 RSI: ffffffff8e53f220 RDI: 0000000000000000 [ 88.335521][ T5822] RBP: 0000000000000001 R08: ffff888067503c00 R09: 0000000000000003 [ 88.343516][ T5822] R10: 00000000ffffffff R11: 0000000000000000 R12: dffffc0000000000 [ 88.351533][ T5822] R13: ffff888030660000 R14: 00000000ffffffff R15: 0000000000000000 [ 88.359537][ T5822] FS: 000055558b8d7380(0000) GS:ffff8881260f6000(0000) knlGS:0000000000000000 [ 88.368549][ T5822] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 88.375176][ T5822] CR2: 000000000066c7e0 CR3: 0000000033a3a000 CR4: 00000000003526f0 [ 88.383149][ T5822] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 88.391184][ T5822] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 88.399199][ T5822] Kernel panic - not syncing: Fatal exception [ 88.405601][ T5822] Kernel Offset: disabled [ 88.409924][ T5822] Rebooting in 86400 seconds..