ovl: fix lseek overflow on 32bit

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commit a4ac9d45c0 upstream.

ovl_lseek() is using ssize_t to return the value from vfs_llseek().  On a
32-bit kernel ssize_t is a 32-bit signed int, which overflows above 2 GB.

Assign the return value of vfs_llseek() to loff_t to fix this.

Reported-by: Boris Gjenero <boris.gjenero@gmail.com>
Fixes: 9e46b840c7 ("ovl: support stacked SEEK_HOLE/SEEK_DATA")
Cc: <stable@vger.kernel.org> # v4.19
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Miklos Szeredi 2020-02-03 11:41:53 +01:00 • committed by Greg Kroah-Hartman

parent b89204e423

commit ac157dd149

1 changed files with 1 additions and 1 deletions

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fs/overlayfs/file.c

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