| commit | 4ba985b84de627ba4f257c9843d0dd7146df2180 | [log] [tgz] |
|---|---|---|
| author | Dan Carpenter <dan.carpenter@linaro.org> | Thu Sep 14 17:59:10 2023 +0300 |
| committer | Kent Overstreet <kent.overstreet@linux.dev> | Sun Oct 22 17:10:14 2023 -0400 |
| tree | 57e1082aae9eddcc4c930508d207411c9406b9eb | |
| parent | 301e0237cadfc7c446e16eab6df38073ade3631d [diff] |
bcachefs: chardev: fix an integer overflow (32 bit only)
On 32 bit systems, "sizeof(*arg) + replica_entries_bytes" can have an
integer overflow leading to memory corruption. Use size_add() to
prevent this.
Fixes: b44dd3797034 ("bcachefs: Redo filesystem usage ioctls")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>