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Message-Id: <1374101277-7915-89-git-send-email-kamal@canonical.com> Date: Wed, 17 Jul 2013 15:47:00 -0700 From: Kamal Mostafa <kamal@...onical.com> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org, kernel-team@...ts.ubuntu.com Cc: Jan Kara <jack@...e.cz>, Theodore Ts'o <tytso@....edu>, Luis Henriques <luis.henriques@...onical.com> Subject: [PATCH 088/145] ext4: fix data offset overflow on 32-bit archs in ext4_inline_data_fiemap() 3.8.13.5 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Jan Kara <jack@...e.cz> commit eaf3793728d07d995f1e74250b2d0005f7ae98b5 upstream. On 32-bit archs when sector_t is defined as 32-bit the logic computing data offset in ext4_inline_data_fiemap(). Fix that by properly typing the shifted value. Signed-off-by: Jan Kara <jack@...e.cz> Signed-off-by: Theodore Ts'o <tytso@....edu> Signed-off-by: Luis Henriques <luis.henriques@...onical.com> --- fs/ext4/inline.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c index 93a3408..f33fcb6 100644 --- a/fs/ext4/inline.c +++ b/fs/ext4/inline.c @@ -1702,7 +1702,7 @@ int ext4_inline_data_fiemap(struct inode *inode, if (error) goto out; - physical = iloc.bh->b_blocknr << inode->i_sb->s_blocksize_bits; + physical = (__u64)iloc.bh->b_blocknr << inode->i_sb->s_blocksize_bits; physical += (char *)ext4_raw_inode(&iloc) - iloc.bh->b_data; physical += offsetof(struct ext4_inode, i_block); length = i_size_read(inode); -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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