./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1829212349 <...> Warning: Permanently added '10.128.0.99' (ED25519) to the list of known hosts. execve("./syz-executor1829212349", ["./syz-executor1829212349"], 0x7fff75fc7f30 /* 10 vars */) = 0 brk(NULL) = 0x5555609c0000 brk(0x5555609c0d00) = 0x5555609c0d00 arch_prctl(ARCH_SET_FS, 0x5555609c0380) = 0 set_tid_address(0x5555609c0650) = 5839 set_robust_list(0x5555609c0660, 24) = 0 rseq(0x5555609c0ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1829212349", 4096) = 28 getrandom("\x67\xe3\xe4\x20\x29\x01\x2d\x7c", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555609c0d00 brk(0x5555609e1d00) = 0x5555609e1d00 brk(0x5555609e2000) = 0x5555609e2000 mprotect(0x7f7a80832000, 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 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) = 0x7f7a78200000 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"..., 1048576) = 1048576 munmap(0x7f7a78200000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 close(4) = 0 mkdir("./file0", 0777) = 0 [ 89.365825][ T5839] loop0: detected capacity change from 0 to 2048 mount("/dev/loop0", "./file0", "ext4", MS_DIRSYNC|MS_NOATIME|MS_POSIXACL|MS_LAZYTIME, ",errors=continue") = 0 openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 chdir("./file0") = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) setrlimit(RLIMIT_FSIZE, {rlim_cur=RLIM64_INFINITY, rlim_max=RLIM64_INFINITY}) = 0 open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [ 89.410559][ T5839] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 89.430394][ T5839] ------------[ cut here ]------------ [ 89.436288][ T5839] kernel BUG at fs/ext4/inline.c:235! [ 89.441899][ T5839] Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 89.449019][ T5839] CPU: 0 UID: 0 PID: 5839 Comm: syz-executor182 Not tainted 6.12.0-rc7-syzkaller-00212-g4a5df3796467 #0 [ 89.460135][ T5839] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 [ 89.470191][ T5839] RIP: 0010:ext4_write_inline_data+0x36b/0x460 [ 89.476379][ T5839] Code: df 41 ff e8 f7 df 41 ff 45 8d 64 2c c4 b8 3c 00 00 00 29 e8 4c 63 f0 e9 c7 fe ff ff e8 de df 41 ff 90 0f 0b e8 d6 df 41 ff 90 <0f> 0b e8 8e b8 a2 ff e9 d6 fd ff ff 4c 89 ff e8 81 b8 a2 ff e9 71 [ 89.496019][ T5839] RSP: 0018:ffffc9000385f8e0 EFLAGS: 00010293 [ 89.502093][ T5839] RAX: 0000000000000000 RBX: ffff88807ff5aa50 RCX: ffffffff824b9874 [ 89.510066][ T5839] RDX: ffff888033378000 RSI: ffffffff824b9a7a RDI: 0000000000000006 [ 89.518129][ T5839] RBP: 0000010000000005 R08: 0000000000000006 R09: 0000010000000006 [ 89.526125][ T5839] R10: 000000000000003c R11: 0000000000000000 R12: 0000000000000001 [ 89.534103][ T5839] R13: ffffc9000385f980 R14: 0000010000000006 R15: ffff88807ff5affa [ 89.542084][ T5839] FS: 00005555609c0380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 89.551040][ T5839] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.557652][ T5839] CR2: 000055cce1a15fe8 CR3: 0000000079826000 CR4: 0000000000350ef0 [ 89.565629][ T5839] Call Trace: [ 89.568907][ T5839] [ 89.571839][ T5839] ? die+0x31/0x80 [ 89.575573][ T5839] ? do_trap+0x232/0x430 [ 89.579838][ T5839] ? ext4_write_inline_data+0x36b/0x460 [ 89.585405][ T5839] ? ext4_write_inline_data+0x36b/0x460 [ 89.590963][ T5839] ? do_error_trap+0xf4/0x230 [ 89.595660][ T5839] ? ext4_write_inline_data+0x36b/0x460 [ 89.601221][ T5839] ? handle_invalid_op+0x34/0x40 [ 89.606220][ T5839] ? ext4_write_inline_data+0x36b/0x460 [ 89.611801][ T5839] ? exc_invalid_op+0x2e/0x50 [ 89.616509][ T5839] ? asm_exc_invalid_op+0x1a/0x20 [ 89.621547][ T5839] ? ext4_write_inline_data+0x164/0x460 [ 89.627106][ T5839] ? ext4_write_inline_data+0x36a/0x460 [ 89.632667][ T5839] ? ext4_write_inline_data+0x36b/0x460 [ 89.638231][ T5839] ext4_write_inline_data_end+0x278/0xc50 [ 89.644001][ T5839] ? __pfx_ext4_write_inline_data_end+0x10/0x10 [ 89.650262][ T5839] ? __pfx_copy_page_from_iter_atomic+0x10/0x10 [ 89.656619][ T5839] ? fault_in_readable+0x1a7/0x200 [ 89.661759][ T5839] ext4_da_write_end+0x54e/0xd00 [ 89.667058][ T5839] ? srso_alias_return_thunk+0x5/0xfbef5 [ 89.672713][ T5839] generic_perform_write+0x4e8/0x920 [ 89.678026][ T5839] ? __pfx_generic_perform_write+0x10/0x10 [ 89.683858][ T5839] ? srso_alias_return_thunk+0x5/0xfbef5 [ 89.689538][ T5839] ? generic_update_time+0xcf/0xf0 [ 89.694677][ T5839] ? srso_alias_return_thunk+0x5/0xfbef5 [ 89.700324][ T5839] ? mnt_put_write_access_file+0x45/0xf0 [ 89.705976][ T5839] ext4_buffered_write_iter+0x119/0x3c0 [ 89.711563][ T5839] ext4_file_write_iter+0x861/0x19d0 [ 89.716874][ T5839] ? srso_alias_return_thunk+0x5/0xfbef5 [ 89.722526][ T5839] ? srso_alias_return_thunk+0x5/0xfbef5 [ 89.728173][ T5839] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 89.733836][ T5839] ? srso_alias_return_thunk+0x5/0xfbef5 [ 89.739484][ T5839] ? __pfx_ext4_file_write_iter+0x10/0x10 [ 89.745233][ T5839] ? trace_lock_acquire+0x14a/0x1d0 [ 89.750456][ T5839] ? srso_alias_return_thunk+0x5/0xfbef5 [ 89.756109][ T5839] ? __x64_sys_pwrite64+0x200/0x260 [ 89.761333][ T5839] ? srso_alias_return_thunk+0x5/0xfbef5 [ 89.767508][ T5839] vfs_write+0x5b1/0x1150 [ 89.771859][ T5839] ? __pfx_ext4_file_write_iter+0x10/0x10 [ 89.777696][ T5839] ? __pfx_vfs_write+0x10/0x10 [ 89.782584][ T5839] ? srso_alias_return_thunk+0x5/0xfbef5 [ 89.788251][ T5839] ? find_held_lock+0x2d/0x110 [ 89.793033][ T5839] ? ptrace_notify+0xf1/0x130 [ 89.797728][ T5839] ? __pfx_lock_release+0x10/0x10 [ 89.802758][ T5839] __x64_sys_pwrite64+0x200/0x260 [ 89.807806][ T5839] ? __pfx___x64_sys_pwrite64+0x10/0x10 [ 89.813372][ T5839] ? srso_alias_return_thunk+0x5/0xfbef5 [ 89.819018][ T5839] ? srso_alias_return_thunk+0x5/0xfbef5 [ 89.824665][ T5839] ? _raw_spin_unlock_irq+0x2e/0x50 [ 89.829886][ T5839] ? srso_alias_return_thunk+0x5/0xfbef5 [ 89.835537][ T5839] ? ptrace_notify+0xf1/0x130 [ 89.840246][ T5839] do_syscall_64+0xcd/0x250 [ 89.844823][ T5839] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 89.850722][ T5839] RIP: 0033:0x7f7a807be679 [ 89.855156][ T5839] 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 [ 89.874770][ T5839] RSP: 002b:00007ffe3683d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 [ 89.883190][ T5839] RAX: ffffffffffffffda RBX: 00007ffe3683d208 RCX: 00007f7a807be679 [ 89.891160][ T5839] RDX: 0000000000000001 RSI: 0000000020000300 RDI: 0000000000000004 [ 89.899135][ T5839] RBP: 00007f7a80832610 R08: 0000000000000000 R09: 00007ffe3683d208 [ 89.907110][ T5839] R10: 0000010000000005 R11: 0000000000000246 R12: 0000000000000001 [ 89.915083][ T5839] R13: 00007ffe3683d1f8 R14: 0000000000000001 R15: 0000000000000001 [ 89.923063][ T5839] [ 89.926075][ T5839] Modules linked in: [ 89.930107][ T5839] ---[ end trace 0000000000000000 ]--- [ 89.935699][ T5839] RIP: 0010:ext4_write_inline_data+0x36b/0x460 [ 89.942151][ T5839] Code: df 41 ff e8 f7 df 41 ff 45 8d 64 2c c4 b8 3c 00 00 00 29 e8 4c 63 f0 e9 c7 fe ff ff e8 de df 41 ff 90 0f 0b e8 d6 df 41 ff 90 <0f> 0b e8 8e b8 a2 ff e9 d6 fd ff ff 4c 89 ff e8 81 b8 a2 ff e9 71 [ 89.961914][ T5839] RSP: 0018:ffffc9000385f8e0 EFLAGS: 00010293 [ 89.967994][ T5839] RAX: 0000000000000000 RBX: ffff88807ff5aa50 RCX: ffffffff824b9874 [ 89.976002][ T5839] RDX: ffff888033378000 RSI: ffffffff824b9a7a RDI: 0000000000000006 [ 89.984024][ T5839] RBP: 0000010000000005 R08: 0000000000000006 R09: 0000010000000006 [ 89.992064][ T5839] R10: 000000000000003c R11: 0000000000000000 R12: 0000000000000001 [ 90.000143][ T5839] R13: ffffc9000385f980 R14: 0000010000000006 R15: ffff88807ff5affa [ 90.008157][ T5839] FS: 00005555609c0380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 90.017141][ T5839] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.023852][ T5839] CR2: 000055cce1a15fe8 CR3: 0000000079826000 CR4: 0000000000350ef0 [ 90.031882][ T5839] Kernel panic - not syncing: Fatal exception [ 90.038176][ T5839] Kernel Offset: disabled [ 90.042502][ T5839] Rebooting in 86400 seconds..