mirror of https://github.com/xemu-project/xemu.git
7edbbff5ee
cxl_cmd_dcd_release_dyn_cap() and cmd_dcd_add_dyn_cap_rsp() are missing input message size checks. These must be done in the individual commands when the command has a variable length input payload. A buggy or malicious guest might send undersized messages via the mailbox. As that size is used to take a copy of the mailbox content, each command must check there is sufficient data. In this case the first check is that there is enough data to read how many extents there are, and the second that there is enough for those elements to be accessed. Reported-by: Esifiel <esifiel@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Message-Id: <20241101133917.27634-2-Jonathan.Cameron@huawei.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> |
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| .. | ||
| Kconfig | ||
| cxl-cdat.c | ||
| cxl-component-utils.c | ||
| cxl-device-utils.c | ||
| cxl-events.c | ||
| cxl-host-stubs.c | ||
| cxl-host.c | ||
| cxl-mailbox-utils.c | ||
| meson.build | ||
| switch-mailbox-cci.c | ||