macintosh/adb: fix oob read in do_adb_query() function
stable inclusion from stable-v5.10.136 commit e5b556a7b2711a39e3aa13aeff26560c17417b8b category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I5ZWNE Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=e5b556a7b2711a39e3aa13aeff26560c17417b8b -------------------------------- commit fd97e4ad upstream. In do_adb_query() function of drivers/macintosh/adb.c, req->data is copied form userland. The parameter "req->data[2]" is missing check, the array size of adb_handler[] is 16, so adb_handler[req->data[2]].original_address and adb_handler[req->data[2]].handler_id will lead to oob read. Cc: stable <stable@kernel.org> Signed-off-by:Ning Qiang <sohu0106@126.com> Reviewed-by:
Kees Cook <keescook@chromium.org> Reviewed-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20220713153734.2248-1-sohu0106@126.com Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
Zheng Zengkai <zhengzengkai@huawei.com> Reviewed-by:
Wei Li <liwei391@huawei.com>
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