Warning: Permanently added '10.128.1.48' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   39.145111] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   39.183793] ==================================================================
[   39.191581] BUG: KASAN: use-after-free in ext4_write_inline_data+0x300/0x3d0
[   39.198969] Write of size 70 at addr ffff8880b04b0016 by task syz-executor016/8128
[   39.206779] 
[   39.208428] CPU: 1 PID: 8128 Comm: syz-executor016 Not tainted 4.19.193-syzkaller #0
[   39.216322] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   39.225780] Call Trace:
[   39.228391]  dump_stack+0x1fc/0x2ef
[   39.232264]  print_address_description.cold+0x54/0x219
[   39.237649]  kasan_report_error.cold+0x8a/0x1b9
[   39.242333]  ? ext4_write_inline_data+0x300/0x3d0
[   39.247348]  kasan_report+0x8f/0xa0
[   39.250993]  ? ext4_write_inline_data+0x300/0x3d0
[   39.255863]  memcpy+0x35/0x50
[   39.259194]  ext4_write_inline_data+0x300/0x3d0
[   39.264174]  ext4_write_inline_data_end+0x220/0x640
[   39.269497]  ? ext4_try_to_write_inline_data+0x1a20/0x1a20
[   39.275145]  ext4_write_end+0x1de/0xec0
[   39.279270]  ext4_da_write_end+0x860/0xa70
[   39.283525]  generic_perform_write+0x2ae/0x4d0
[   39.288233]  ? __mnt_drop_write_file+0x6f/0xa0
[   39.293009]  ? filemap_page_mkwrite+0x2f0/0x2f0
[   39.298409]  ? current_time+0x1c0/0x1c0
[   39.302666]  ? retint_kernel+0x2d/0x2d
[   39.306576]  __generic_file_write_iter+0x24b/0x610
[   39.311681]  ext4_file_write_iter+0x2fe/0xf20
[   39.316761]  ? ext4_file_open+0x600/0x600
[   39.321006]  ? do_futex+0x171/0x1880
[   39.325062]  ? mark_held_locks+0xf0/0xf0
[   39.329247]  __vfs_write+0x51b/0x770
[   39.332973]  ? common_file_perm+0x4e5/0x850
[   39.337385]  ? kernel_read+0x110/0x110
[   39.341548]  ? check_preemption_disabled+0x41/0x280
[   39.346915]  ? rcu_read_lock_sched_held+0x16c/0x1d0
[   39.351930]  vfs_write+0x1f3/0x540
[   39.355818]  ksys_write+0x12b/0x2a0
[   39.359454]  ? __ia32_sys_read+0xb0/0xb0
[   39.363534]  ? trace_hardirqs_off_caller+0x6e/0x210
[   39.368702]  ? do_syscall_64+0x21/0x620
[   39.372676]  do_syscall_64+0xf9/0x620
[   39.376585]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[   39.382286] RIP: 0033:0x44a9f9
[   39.385482] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 bc ff ff ff f7 d8 64 89 01 48
[   39.406478] RSP: 002b:00007f9f195b9208 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   39.414542] RAX: ffffffffffffffda RBX: 00000000004cc428 RCX: 000000000044a9f9
[   39.422009] RDX: 0000000000000082 RSI: 00000000200000c0 RDI: 0000000000000008
[   39.429631] RBP: 00000000004cc420 R08: 0000000000000000 R09: 0000000000000000
[   39.436991] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cc42c
[   39.444261] R13: 00007ffee825f65f R14: 00007f9f195b9300 R15: 0000000000022000
[   39.451710] 
[   39.453334] Allocated by task 28:
[   39.456874]  kmem_cache_alloc+0x122/0x370
[   39.461098]  alloc_pid+0x53/0x8f0
[   39.464649]  copy_process.part.0+0x3bc0/0x8260
[   39.469243]  _do_fork+0x22f/0xf30
[   39.472683]  kernel_thread+0x2f/0x40
[   39.476395]  call_usermodehelper_exec_work+0x16d/0x260
[   39.481934]  process_one_work+0x864/0x1570
[   39.486348]  worker_thread+0x64c/0x1130
[   39.490416]  kthread+0x33f/0x460
[   39.493771]  ret_from_fork+0x24/0x30
[   39.497473] 
[   39.499083] Freed by task 9:
[   39.502107]  kmem_cache_free+0x7f/0x260
[   39.506078]  put_pid.part.0+0x109/0x150
[   39.510123]  delayed_put_pid+0x1c/0x30
[   39.514001]  rcu_process_callbacks+0x8ff/0x18b0
[   39.518929]  __do_softirq+0x265/0x980
[   39.522816] 
[   39.524446] The buggy address belongs to the object at ffff8880b04b0000
[   39.524446]  which belongs to the cache pid of size 72
[   39.536414] The buggy address is located 22 bytes inside of
[   39.536414]  72-byte region [ffff8880b04b0000, ffff8880b04b0048)
[   39.548568] The buggy address belongs to the page:
[   39.553670] page:ffffea0002c12c00 count:1 mapcount:0 mapping:ffff88823b8334c0 index:0xffff8880b04b0f80
[   39.563447] flags: 0xfff00000000100(slab)
[   39.567593] raw: 00fff00000000100 ffffea0002cbdac8 ffffea0002b77c88 ffff88823b8334c0
[   39.575573] raw: ffff8880b04b0f80 ffff8880b04b0000 000000010000000e 0000000000000000
[   39.584220] page dumped because: kasan: bad access detected
[   39.590028] 
[   39.591728] Memory state around the buggy address:
[   39.596640]  ffff8880b04aff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   39.603985]  ffff8880b04aff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   39.611462] >ffff8880b04b0000: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc
[   39.619090]                          ^
[   39.622970]  ffff8880b04b0080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc
[   39.630637]  ffff8880b04b0100: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc
[   39.638654] ==================================================================
[   39.646008] Disabling lock debugging due to kernel taint
[   39.651872] Kernel panic - not syncing: panic_on_warn set ...
[   39.651872] 
[   39.659345] CPU: 1 PID: 8128 Comm: syz-executor016 Tainted: G    B             4.19.193-syzkaller #0
[   39.669062] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   39.679550] Call Trace:
[   39.682343]  dump_stack+0x1fc/0x2ef
[   39.686347]  panic+0x26a/0x50e
[   39.689768]  ? __warn_printk+0xf3/0xf3
[   39.693657]  ? retint_kernel+0x2d/0x2d
[   39.697661]  ? trace_hardirqs_on+0x55/0x210
[   39.702485]  kasan_end_report+0x43/0x49
[   39.706632]  kasan_report_error.cold+0xa7/0x1b9
[   39.711381]  ? ext4_write_inline_data+0x300/0x3d0
[   39.716321]  kasan_report+0x8f/0xa0
[   39.720753]  ? ext4_write_inline_data+0x300/0x3d0
[   39.726437]  memcpy+0x35/0x50
[   39.729909]  ext4_write_inline_data+0x300/0x3d0
[   39.735457]  ext4_write_inline_data_end+0x220/0x640
[   39.741471]  ? ext4_try_to_write_inline_data+0x1a20/0x1a20
[   39.747908]  ext4_write_end+0x1de/0xec0
[   39.751890]  ext4_da_write_end+0x860/0xa70
[   39.756270]  generic_perform_write+0x2ae/0x4d0
[   39.760934]  ? __mnt_drop_write_file+0x6f/0xa0
[   39.765685]  ? filemap_page_mkwrite+0x2f0/0x2f0
[   39.771135]  ? current_time+0x1c0/0x1c0
[   39.775298]  ? retint_kernel+0x2d/0x2d
[   39.779182]  __generic_file_write_iter+0x24b/0x610
[   39.784477]  ext4_file_write_iter+0x2fe/0xf20
[   39.789439]  ? ext4_file_open+0x600/0x600
[   39.793790]  ? do_futex+0x171/0x1880
[   39.798198]  ? mark_held_locks+0xf0/0xf0
[   39.802624]  __vfs_write+0x51b/0x770
[   39.806765]  ? common_file_perm+0x4e5/0x850
[   39.812648]  ? kernel_read+0x110/0x110
[   39.816808]  ? check_preemption_disabled+0x41/0x280
[   39.822181]  ? rcu_read_lock_sched_held+0x16c/0x1d0
[   39.827375]  vfs_write+0x1f3/0x540
[   39.831164]  ksys_write+0x12b/0x2a0
[   39.834810]  ? __ia32_sys_read+0xb0/0xb0
[   39.838874]  ? trace_hardirqs_off_caller+0x6e/0x210
[   39.844184]  ? do_syscall_64+0x21/0x620
[   39.848333]  do_syscall_64+0xf9/0x620
[   39.852424]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[   39.858480] RIP: 0033:0x44a9f9
[   39.862210] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 bc ff ff ff f7 d8 64 89 01 48
[   39.886686] RSP: 002b:00007f9f195b9208 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   39.894810] RAX: ffffffffffffffda RBX: 00000000004cc428 RCX: 000000000044a9f9
[   39.903729] RDX: 0000000000000082 RSI: 00000000200000c0 RDI: 0000000000000008
[   39.911283] RBP: 00000000004cc420 R08: 0000000000000000 R09: 0000000000000000
[   39.918732] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cc42c
[   39.926357] R13: 00007ffee825f65f R14: 00007f9f195b9300 R15: 0000000000022000
[   39.935414] Kernel Offset: disabled
[   39.939044] Rebooting in 86400 seconds..