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authorSungjong Seo <sj1557.seo@samsung.com>2021-10-19 09:14:21 +0300
committerNamjae Jeon <linkinjeon@kernel.org>2021-11-01 01:49:21 +0300
commit0c336d6e33f4bedc443404c89f43c91c8bd9ee11 (patch)
tree853e5d72db3c5a5d55c7e6c91af9cbab93dc4fda /fs
parent8bb7eca972ad531c9b149c0a51ab43a417385813 (diff)
downloadlinux-0c336d6e33f4bedc443404c89f43c91c8bd9ee11.tar.xz
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 <hgkamath@hotmail.com> Signed-off-by: Sungjong Seo <sj1557.seo@samsung.com> Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Diffstat (limited to 'fs')
-rw-r--r--fs/exfat/inode.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/exfat/inode.c b/fs/exfat/inode.c
index ca37d4344361..1c7aa1ea4724 100644
--- a/fs/exfat/inode.c
+++ b/fs/exfat/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;