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WARNING: lock held when returning to user space!
6.2.0-rc7-syzkaller #0 Not tainted
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syz-executor.0/6496 is leaving the kernel with locks still held!
2 locks held by syz-executor.0/6496:
 #0: ffff888075e2e460 (sb_writers#14){.+.+}-{0:0}, at: do_sendfile+0x4cd/0xc10 fs/read_write.c:1254
 #1: ffffffff8c5161a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30