| commit | 84032b6759024337a81ae5d8e23a39110381743b | [log] [tgz] |
|---|---|---|
| author | Heinrich Schuchardt <heinrich.schuchardt@canonical.com> | Sun Jul 30 16:44:04 2023 +0200 |
| committer | Tom Rini <trini@konsulko.com> | Mon Aug 14 17:55:53 2023 -0400 |
| tree | 53774a876d57ec8557ca4c6afd9f4b8798fca186 | |
| parent | 688d62bfc8e336b06b5d6c445333dc04f1283d8d [diff] |
fs: fat: avoid multiplication overflow
The product of two 32 bit integers is a 32 bit integer. Hence
clustcount * bytesperclust may overflow on > 4 GiB devices.
Change the type of clustcount.
Fixes: cb8af8af5ba0 ("fs: fat: support write with non-zero offset")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>