RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbcf977d6d4
R13: 00000000004d0d78 R14: 00000000004e1278 R15: 0000000000000004
------------[ cut here ]------------
ODEBUG: free active (active state 1) object type: rcu_head hint:           (null)
WARNING: CPU: 1 PID: 15245 at lib/debugobjects.c:325 debug_print_object+0x168/0x250 lib/debugobjects.c:325
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 15245 Comm: syz-executor.1 Not tainted 4.19.75 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 panic+0x263/0x507 kernel/panic.c:185
 __warn.cold+0x20/0x4a kernel/panic.c:540
 report_bug+0x263/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x204/0x360 arch/x86/kernel/traps.c:296
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1037
RIP: 0010:debug_print_object+0x168/0x250 lib/debugobjects.c:325
Code: dd 20 56 82 87 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 b5 00 00 00 48 8b 14 dd 20 56 82 87 48 c7 c7 60 4b 82 87 e8 d6 04 19 fe <0f> 0b 83 05 cb 83 17 06 01 48 83 c4 20 5b 41 5c 41 5d 41 5e 5d c3
RSP: 0018:ffff888052e9f5e0 EFLAGS: 00010086
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8155dbd6 RDI: ffffed100a5d3eae
print_req_error: I/O error, dev loop2, sector 64
RBP: ffff888052e9f620 R08: ffff888051054100 R09: ffffed1015d23ee3
R10: ffffed1015d23ee2 R11: ffff8880ae91f717 R12: 0000000000000001
R13: ffffffff8879f200 R14: 0000000000000000 R15: ffff8880597517e0
 __debug_check_no_obj_freed lib/debugobjects.c:785 [inline]
 debug_check_no_obj_freed+0x29f/0x464 lib/debugobjects.c:817
print_req_error: I/O error, dev loop2, sector 256
 kmem_cache_free+0x18f/0x260 mm/slab.c:3764
 free_task_struct kernel/fork.c:162 [inline]
 free_task+0xdd/0x120 kernel/fork.c:416
 __put_task_struct+0x20f/0x4c0 kernel/fork.c:689
 put_task_struct include/linux/sched/task.h:96 [inline]
 finish_task_switch+0x52b/0x780 kernel/sched/core.c:2710
 context_switch kernel/sched/core.c:2829 [inline]
 __schedule+0x86e/0x1dc0 kernel/sched/core.c:3474
UDF-fs: error (device loop2): udf_read_tagged: read failed, block=256, location=256
 schedule+0x92/0x1c0 kernel/sched/core.c:3518
 io_schedule+0x1c/0x70 kernel/sched/core.c:5141
 bit_wait_io+0x17/0x90 kernel/sched/wait_bit.c:207
 __wait_on_bit+0xd5/0x170 kernel/sched/wait_bit.c:48
print_req_error: I/O error, dev loop2, sector 512
 out_of_line_wait_on_bit+0xd8/0x110 kernel/sched/wait_bit.c:63
 wait_on_bit_io include/linux/wait_bit.h:101 [inline]
 __wait_on_buffer fs/buffer.c:118 [inline]
 wait_on_buffer include/linux/buffer_head.h:354 [inline]
 wait_on_buffer include/linux/buffer_head.h:350 [inline]
 __sync_dirty_buffer+0x239/0x2e0 fs/buffer.c:3188
 sync_dirty_buffer+0x1b/0x20 fs/buffer.c:3200
UDF-fs: error (device loop2): udf_read_tagged: read failed, block=512, location=512
 __ext4_handle_dirty_metadata+0x237/0x570 fs/ext4/ext4_jbd2.c:300
 ext4_handle_dirty_dirent_node+0x3cf/0x4f0 fs/ext4/namei.c:402
UDF-fs: warning (device loop2): udf_load_vrs: No anchor found
 add_dirent_to_buf+0x410/0x680 fs/ext4/namei.c:1909
 ext4_add_entry+0x554/0xba0 fs/ext4/namei.c:2105
UDF-fs: Scanning with blocksize 512 failed
 ext4_add_nondir+0x28/0x90 fs/ext4/namei.c:2435
 ext4_symlink+0x5e8/0xbe0 fs/ext4/namei.c:3194
 vfs_symlink fs/namei.c:4126 [inline]
 vfs_symlink+0x373/0x5c0 fs/namei.c:4112
 do_symlinkat+0x22b/0x290 fs/namei.c:4153
 __do_sys_symlink fs/namei.c:4172 [inline]
 __se_sys_symlink fs/namei.c:4170 [inline]
 __x64_sys_symlink+0x59/0x80 fs/namei.c:4170
 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459757
Code: 0f 1f 00 b8 5c 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 bd ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 58 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 9d ba fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ffc1da8d898 EFLAGS: 00000202 ORIG_RAX: 0000000000000058
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000459757
RDX: 00007ffc1da8d933 RSI: 00000000004bf293 RDI: 00007ffc1da8d920
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000013
R10: 0000000000000075 R11: 0000000000000202 R12: 0000000000000001
R13: 00007ffc1da8d8d0 R14: 0000000000000000 R15: 00007ffc1da8d8e0

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