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h=From:To:Subject:Date:Message-ID:MIME-Version; bh=vpgb6RPjgsg2uUwmuZfiFZi0G049VFqTzA6+jxA6sAc=; b=p6dyccXtZt1dp1cuDRTu5svG48gk2mTYRD9eeAhWfsAY1TIpuMMkxxMg1Hs4F6Clj4sO4lykIrZ5H42KT4EerI7DKe6IfoMhOjFDzYyR4ecY0YxJacd542qah4p3vb+2WxQwBSxhezpIa37XoOeQ5Eh0TjgK24zxagm9g7FtYAo= X-Alimail-AntiSpam:AC=PASS;BC=-1|-1;BR=01201311R341e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=maildocker-contentspam033045133197;MF=hsiangkao@linux.alibaba.com;NM=1;PH=DS;RN=2;SR=0;TI=SMTPD_---0X5zS2p5_1782787949; Received: from x31i01179.sqa.na131.tbsite.net(mailfrom:hsiangkao@linux.alibaba.com fp:SMTPD_---0X5zS2p5_1782787949 cluster:ay36) by smtp.aliyun-inc.com; Tue, 30 Jun 2026 10:52:30 +0800 From: Gao Xiang To: linux-erofs@lists.ozlabs.org Cc: Gao Xiang Subject: [PATCH 2/7] erofs-utils: lib: silence `INTEGER_OVERFLOW` Date: Tue, 30 Jun 2026 10:52:19 +0800 Message-ID: <20260630025224.3955763-2-hsiangkao@linux.alibaba.com> X-Mailer: git-send-email 2.43.5 In-Reply-To: <20260630025224.3955763-1-hsiangkao@linux.alibaba.com> References: <20260630025224.3955763-1-hsiangkao@linux.alibaba.com> X-Mailing-List: linux-erofs@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Coverity-id: 647269 Signed-off-by: Gao Xiang --- lib/metabox.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/lib/metabox.c b/lib/metabox.c index 86a708367dc0..5c2eadacaf7f 100644 --- a/lib/metabox.c +++ b/lib/metabox.c @@ -133,6 +133,10 @@ int erofs_metazone_flush(struct erofs_sb_info *sbi) return PTR_ERR(bh); erofs_mapbh(NULL, bh->block); pos_out = erofs_btell(bh, false); + if (__erofs_unlikely(pos_out == EROFS_NULL_ADDR)) { + erofs_bdrop(bh, true); + return -EFAULT; + } meta_blkaddr = pos_out >> sbi->blkszbits; sbi->metazone_startblk = meta_blkaddr; @@ -148,7 +152,7 @@ int erofs_metazone_flush(struct erofs_sb_info *sbi) do { count = min_t(erofs_off_t, length, INT_MAX); - ret = erofs_io_xcopy(sbi->bmgr->vf, pos_out, + ret = erofs_io_xcopy(sbi->bmgr->vf, (off_t)pos_out, &m2gr->vf, count, false); if (ret < 0) break; -- 2.43.5