imrcpan/erofs-linux
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isofs: Verify inode mode when loading from disk

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Verify that the inode mode is sane when loading it from the disk to
avoid complaints from VFS about setting up invalid inodes.

Reported-by: [email protected]
CC: [email protected]
Signed-off-by: Jan Kara <[email protected]>
Link: https://lore.kernel.org/[email protected]
Acked-by: Christian Brauner <[email protected]>
Signed-off-by: Christian Brauner <[email protected]>
This commit is contained in:
Jan Kara authored and Christian Brauner committed 2025-07-11 11:39:31 +02:00
1 parent 6b89819b06
commit 0a9e740513
1 file changed
+8 -1
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fs/isofs/inode.c
+8 -1
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@@ -1440,9 +1440,16 @@ static int isofs_read_inode(struct inode *inode, int relocated)
inode->i_op = &page_symlink_inode_operations;
inode_nohighmem(inode);
inode->i_data.a_ops = &isofs_symlink_aops;
} else
} else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
/* XXX - parse_rock_ridge_inode() had already set i_rdev. */
init_special_inode(inode, inode->i_mode, inode->i_rdev);
} else {
printk(KERN_DEBUG "ISOFS: Invalid file type 0%04o for inode %lu.\n",
inode->i_mode, inode->i_ino);
ret = -EIO;
goto fail;
}
ret = 0;
out: