Commit 9b6faee0 authored by Amir Goldstein's avatar Amir Goldstein Committed by Miklos Szeredi
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ovl: check ERR_PTR() return value from ovl_encode_fh()

Another fix for an issue reported by 0-day robot.

Reported-by: default avatarDan Carpenter <>
Fixes: 8ed5eec9

 ("ovl: encode pure upper file handles")
Signed-off-by: default avatarAmir Goldstein <>
Signed-off-by: default avatarMiklos Szeredi <>
parent 2aed489d
......@@ -108,6 +108,9 @@ static int ovl_d_to_fh(struct dentry *dentry, char *buf, int buflen)
/* Encode an upper or origin file handle */
fh = ovl_encode_fh(origin ?: ovl_dentry_upper(dentry), !origin);
err = PTR_ERR(fh);
if (IS_ERR(fh))
goto fail;
if (fh->len > buflen)
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