ovl: fix dentry reference leak after changes to underlying layers

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syzbot excercised the forbidden practice of moving the workdir under
lowerdir while overlayfs is mounted and tripped a dentry reference leak.

Fixes: c63e56a4a6 ("ovl: do not open/llseek lower file with upper sb_writers held")
Reported-and-tested-by: syzbot+8608bb4553edb8c78f41@syzkaller.appspotmail.com
Signed-off-by: Amir Goldstein <amir73il@gmail.com>

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Amir Goldstein 2023-12-17 11:08:52 +02:00

parent 98b1cc82c4

commit 413ba91089

1 changed files with 3 additions and 2 deletions

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fs/overlayfs/copy_up.c

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