From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D24962676DE; Tue, 8 Apr 2025 11:49:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744112958; cv=none; b=FN/z/FfwWV8emGAPUgDiS2sPY/bKaPJzIX89FV+sjL/rs20yDmYOdqCSyBSRWsUaPJjw2/jzCt6zXtAvn3tuMn8wIDUvKOhLW0wDE9acnGG3NJHaV41zRVKXvDspJApQWxY0qy/XwY9ttiQGk+eV8dptqjIVR7z8eXypdnSw0UE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744112958; c=relaxed/simple; bh=uizRlo33MIM1CiliC+xHX+WO1UM5P3ZobZmviZVPRB8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=f21EuObMzsSN7xU80PL+W2bfmu+mYQdTVGQCaqnRu3bbEAbPghjOweXbSr8APc/0Yys8A0j9G2RU3IpXcikUnPWuwWvqv7zkq08Lugi5IdO0OIu0tfviZZTk7MPpWWpDdUX4s2gde/fGm8B5/JFYdEa7Z4w8nZehUvOnQXtW2M4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=DRgS1V4Z; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="DRgS1V4Z" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6399CC4CEE5; Tue, 8 Apr 2025 11:49:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1744112958; bh=uizRlo33MIM1CiliC+xHX+WO1UM5P3ZobZmviZVPRB8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=DRgS1V4ZCBheKkdcbFocm2Yi99b8SV3p9zjBGKntE9H3uOUZuBbz2VdDwtE+s75AA lHRd/jubOCNLb9OSTx89l8XkSDRd59qQrBAHqPbnvJouvpCK61uO4jQxEcAp48cTo6 VjZA+HDg2j9cY+6mlM0gkp5CDpVUjfA2YcqNbFI8= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Josef Bacik , David Sterba , Jianqi Ren , He Zhe Subject: [PATCH 5.15 262/279] btrfs: handle errors from btrfs_dec_ref() properly Date: Tue, 8 Apr 2025 12:50:45 +0200 Message-ID: <20250408104833.455189858@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250408104826.319283234@linuxfoundation.org> References: <20250408104826.319283234@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Josef Bacik commit 5eb178f373b4f16f3b42d55ff88fc94dd95b93b1 upstream. In walk_up_proc() we BUG_ON(ret) from btrfs_dec_ref(). This is incorrect, we have proper error handling here, return the error. Signed-off-by: Josef Bacik Reviewed-by: David Sterba Signed-off-by: David Sterba Signed-off-by: Jianqi Ren Signed-off-by: He Zhe Signed-off-by: Greg Kroah-Hartman --- fs/btrfs/extent-tree.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -5461,7 +5461,10 @@ static noinline int walk_up_proc(struct ret = btrfs_dec_ref(trans, root, eb, 1); else ret = btrfs_dec_ref(trans, root, eb, 0); - BUG_ON(ret); /* -ENOMEM */ + if (ret) { + btrfs_abort_transaction(trans, ret); + return ret; + } if (is_fstree(root->root_key.objectid)) { ret = btrfs_qgroup_trace_leaf_items(trans, eb); if (ret) {