fuse: add inode/permission checks to fileattr_get/fileattr_set
commit1cc4606d19
upstream. It looks like these checks were accidentally lost during the conversion to fileattr API. Fixes:72227eac17
("fuse: convert to fileattr") Cc: <stable@vger.kernel.org> # v5.13 Signed-off-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -419,6 +419,12 @@ static struct fuse_file *fuse_priv_ioctl_prepare(struct inode *inode)
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struct fuse_mount *fm = get_fuse_mount(inode);
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bool isdir = S_ISDIR(inode->i_mode);
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if (!fuse_allow_current_process(fm->fc))
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return ERR_PTR(-EACCES);
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if (fuse_is_bad(inode))
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return ERR_PTR(-EIO);
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if (!S_ISREG(inode->i_mode) && !isdir)
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return ERR_PTR(-ENOTTY);
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