From nobody Tue Dec 2 00:46:00 2025 Received: from mail-pj1-f42.google.com (mail-pj1-f42.google.com [209.85.216.42]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D676C212B0A for ; Sun, 23 Nov 2025 12:13:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.42 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763900024; cv=none; b=VZ08BfNUTc4o1FK5JvY4b2l5bcrLR7lro2Fh8IM3SPbOcroriG6g7UO7mz2EetWcJtH314TvAI89LHLMIS4BC2BCvC77dZ4WVjMG9QaGrpoLkspDPByYE1h9qGOlR/0FsRE6blJLasoJx2Ir39uUkfMMKCseOi+ANf9fLGmpprI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763900024; c=relaxed/simple; bh=C31m14QTTyacaf6yZhVFxGlYz8X/OYOM4Xmwxefxn3A=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=LJs7LxSDlIxVmDguwB5EVFU/D3kzJNo54dLnX2vNjIpmRTIF57+4FqEy6DSB6alqdgKbtj8BSSjRoUN+Nq4YaW0SGgkkNPz9l/Pq6mBXwOhmBHKeD1rYiHZwNumgDRzh5aV/mx17jcz3E//EzdxtkyzUtVHZEeogKDpX7qrKjlc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=J61glzUb; arc=none smtp.client-ip=209.85.216.42 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="J61glzUb" Received: by mail-pj1-f42.google.com with SMTP id 98e67ed59e1d1-343684a06b2so3493507a91.1 for ; Sun, 23 Nov 2025 04:13:42 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1763900022; x=1764504822; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=WyX1swaZXCFxH3YUkv+TSnEmlsdS6cyArMsiSXhLY8A=; b=J61glzUbCU/rIjw1kc7vw8SYWNgg2wK+JLM8jUeVNdiZgIQvxldTsGNDZGjovVPnyR Wj+0AnL264pC5qRe4E8eR+SHHxfTrfGOi09cysyf6mAs81FBtaZCIaqcVJP/MRFKv1/c Uw/MD66DVA/7W6wQukBSNPTnIUa/atkWor3hFoo0JBfohHyJWsdIZaADWjGTJ5ewJduj KLV4NgHP4ZA8Yo54EuPxv6fBJrSkpgk/wwCQYFoA56GSW12c0s/K/lBZ8V0pSNaealZg woitTrBUDaBCljp9ru8Lbx2+E1ywU7aYMUfrZb2sxyAVgxfPOMjaZz7050HQthdxWcVM kJ9w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1763900022; x=1764504822; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=WyX1swaZXCFxH3YUkv+TSnEmlsdS6cyArMsiSXhLY8A=; b=TaBaCb21oV1Aar/f/Ph/wsL+gus8xzvoebK2To9ChpH5ODIl91MrtyXyQQuNsLv4Do Z08sQRtIovgz5qYLjnrNh40X4OysqaPxkkhV3ooe67cX94dfVAYRFrPblfRtE7yGTVKW z7fnOKImY+egThuF4tu5ONCJXeYX7sqfN1Y5Fwlf8MnD4Y05ztImlYysItYMlAZPHIjl i1WRlXTZOwe8rTC0e11Ela6198tMW79XA6IG1KuPWBLzRFGzxDQGIMFGxeyfOH4EdaO5 N5ZlpjQc8ZPDIte0X0nidsoDZeo2DDhazVm5We7+uc8RWIpf6tmfyjC4Kdd7v/FOE63z L3pg== X-Forwarded-Encrypted: i=1; AJvYcCVnxrJebYSj/tiJqIzVQ0ZVMafMMmmNEuNw26HCINgHdtXGbEMkE1SkSiJZZcXvL9Wp2cXrJ5YanTSNcAU=@vger.kernel.org X-Gm-Message-State: AOJu0YwQ1U4JbtfeumaQhyKHEBpCIl9YYvC9JJlnk9FG6Z57xJ4i3yzH eFfp0MnnK3zuwOQ/nKrig8jN9itZp6gTV0Whst/Y2Ze7bWNHYwYSu+d0 X-Gm-Gg: ASbGncs1jCn2Z5oW5JW41KQXBxtzXGtVDj5v9iOVAW7pnfDZfAeD60BgcDYCa/fuVws joi8qARo85ufotudrkoIpQj+mvYORApGGDTmhIFR0ZpbRFdgnth7XyXFElWzPRLPNJuwgY51dbp 7EqOGtuMX4CtvnuTito1uv9SYlXh4i71Fxg+gv0+1xGyEbIKBZiORoSvpH9UC9c0AaJ5Y0h+ImJ P3AwxGdzvJTSvsYI1pRTsUZhjqqEIsvepJlHsTqQ36+nuxHll+IY2vPhaLCTQuPzMETSxyuALAH mdmOy+sjRFYBNDPFuIl/GOaZoBr4DeKHHLPmkMWRBBtFVmDWCQ/d2JtJiKBsv9eHv+CqxRT+wDF RSOoIntilKpK855MHNFTeDUbaCPrnO2jWNIy/E09knhsLIz2YPmiwou5P1rqvLzyKSLfetSarXu i1wL+CSF2PUqm2LIiSZvoYsw== X-Google-Smtp-Source: AGHT+IGkiJz43MaVKsspec2x97fyah8pulbznh0JEMfdt2JxPUnEwy2ZNySTL4iXFirGNGrPJuyjNw== X-Received: by 2002:a17:90b:534e:b0:341:a9e7:e5f9 with SMTP id 98e67ed59e1d1-34733d76c4dmr7119993a91.0.1763900021914; Sun, 23 Nov 2025 04:13:41 -0800 (PST) Received: from yangwen.localdomain ([121.237.95.138]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-bd75b61c29dsm10368943a12.0.2025.11.23.04.13.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 23 Nov 2025 04:13:41 -0800 (PST) From: YangWen To: linkinjeon@kernel.org, sj1557.seo@samsung.com, yuezhang.mo@sony.com Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, YangWen Subject: [PATCH] exfat: fix memory leak in exfat_fill_super Date: Sun, 23 Nov 2025 20:13:39 +0800 Message-ID: <20251123121339.25501-1-anmuxixixi@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" If exFAT encounters errors during multiple mount operations, 'sbi' and 'nls= ' will not be released, which will cause a memory leak. Fixes: 719c1e1829166 ("exfat: add super block operations") Signed-off-by: YangWen --- fs/exfat/super.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/fs/exfat/super.c b/fs/exfat/super.c index 74d451f732c7..db28a426206c 100644 --- a/fs/exfat/super.c +++ b/fs/exfat/super.c @@ -722,10 +722,15 @@ static int exfat_fill_super(struct super_block *sb, s= truct fs_context *fc) sb->s_root =3D NULL; =20 free_table: + exfat_free_upcase_table(sbi); exfat_free_bitmap(sbi); brelse(sbi->boot_bh); =20 check_nls_io: + unload_nls(sbi->nls_io); + exfat_free_iocharset(sbi); + sb->s_fs_info =3D NULL; + kfree(sbi); return err; } =20 --=20 2.43.0