INFO: rcu_tasks_trace detected stalls on tasks:
P23303: .... nesting: 0C  cpu: 0
task:syz-executor.4  state:R  running task     stack:27576 pid:23303 tgid:23302 ppid:20429  task_flags:0x40054c flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5378 [inline]
 __schedule+0xca2/0x2410 kernel/sched/core.c:6765
 do_task_dead+0x9d/0xc0 kernel/sched/core.c:6781
 do_exit+0x18c2/0x28a0 kernel/exit.c:989
 do_group_exit+0xc7/0x280 kernel/exit.c:1087
 get_signal+0x1d94/0x1f70 kernel/signal.c:3036
 arch_do_signal_or_restart+0x81/0x780 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xc0/0x140 kernel/entry/common.c:218
 do_syscall_64+0xb3/0x1a0 arch/x86/entry/common.c:89
netlink: 'syz-executor.7': attribute type 5 has an invalid length.
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
netlink: 48 bytes leftover after parsing attributes in process `syz-executor.7'.
RIP: 0033:0x7f7ccf4eb1a9
RSP: 002b:00007f7cce807178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007f7ccf6bbf88 RCX: 00007f7ccf4eb1a9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f7ccf6bbf8c
RBP: 00007f7ccf6bbf80 R08: 00007f7cd01f5000 R09: 00007f7cce8076c0
R10: 0000000000000020 R11: 0000000000000246 R12: 00007f7ccf6bbf8c
R13: 000000000000000b R14: 00007ffe9a6775c0 R15: 00007ffe9a6776a8
 </TASK>
INFO: rcu_tasks_trace detected stalls? (Late IPI?)
INFO: rcu_tasks_trace detected stalls? (Late IPI?)
loop6: detected capacity change from 0 to 2048
SELinux: security_context_str_to_sid (unconfined_u) failed with errno=-22
warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow
EXT4-fs (loop6): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
EXT4-fs error (device loop6): ext4_validate_block_bitmap:440: comm syz-executor.6: bg 0: block 234: padding at end of block bitmap is not set
EXT4-fs (loop6): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 2048 with error 28
EXT4-fs (loop6): This should not happen!! Data will be lost

EXT4-fs (loop6): Total free blocks count 0
EXT4-fs (loop6): Free/Dirty block details
EXT4-fs (loop6): free_blocks=0
EXT4-fs (loop6): dirty_blocks=8192
EXT4-fs (loop6): Block reservation details
EXT4-fs (loop6): i_reserved_data_blocks=512
EXT4-fs (loop6): Delayed block allocation failed for inode 18 at logical offset 2050 with max blocks 2048 with error 28