From 0c336d6e33f4bedc443404c89f43c91c8bd9ee11 Mon Sep 17 00:00:00 2001 From: Sungjong Seo Date: Tue, 19 Oct 2021 15:14:21 +0900 Subject: [Backport 0c336d6e33f4] exfat: fix incorrect loading of i_blocks for large files When calculating i_blocks, there was a mistake that was masked with a 32-bit variable. So i_blocks for files larger than 4 GiB had incorrect values. Mask with a 64-bit variable instead of 32-bit one. Fixes: 5f2aa075070c ("exfat: add inode operations") Cc: stable@vger.kernel.org # v5.7+ Reported-by: Ganapathi Kamath Signed-off-by: Sungjong Seo Signed-off-by: Namjae Jeon --- src/inode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/inode.c b/src/inode.c index ca37d43443612c61200b07b69e40993ea0eff8d2..1c7aa1ea4724cf03e49daef0e730dc620200088f 100644 --- a/src/inode.c +++ b/src/inode.c @@ -604,7 +604,7 @@ static int exfat_fill_inode(struct inode *inode, struct exfat_dir_entry *info) exfat_save_attr(inode, info->attr); inode->i_blocks = ((i_size_read(inode) + (sbi->cluster_size - 1)) & - ~(sbi->cluster_size - 1)) >> inode->i_blkbits; + ~((loff_t)sbi->cluster_size - 1)) >> inode->i_blkbits; inode->i_mtime = info->mtime; inode->i_ctime = info->mtime; ei->i_crtime = info->crtime; -- 2.31.1