diff options
Diffstat (limited to 'sys/dev/mpr/mpr_user.c')
| -rw-r--r-- | sys/dev/mpr/mpr_user.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/sys/dev/mpr/mpr_user.c b/sys/dev/mpr/mpr_user.c index cab865e2e535..08c2b8b39244 100644 --- a/sys/dev/mpr/mpr_user.c +++ b/sys/dev/mpr/mpr_user.c @@ -2266,6 +2266,10 @@ mpr_ioctl(struct cdev *dev, u_long cmd, void *arg, int flag, mpr_unlock(sc); break; case MPRIO_READ_CFG_PAGE: + if (page_req->len < (int)sizeof(MPI2_CONFIG_PAGE_HEADER)) { + error = EINVAL; + break; + } mpr_page = malloc(page_req->len, M_MPRUSER, M_WAITOK | M_ZERO); error = copyin(page_req->buf, mpr_page, sizeof(MPI2_CONFIG_PAGE_HEADER)); @@ -2284,6 +2288,11 @@ mpr_ioctl(struct cdev *dev, u_long cmd, void *arg, int flag, mpr_unlock(sc); break; case MPRIO_READ_EXT_CFG_PAGE: + if (ext_page_req->len < + (int)sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER)) { + error = EINVAL; + break; + } mpr_page = malloc(ext_page_req->len, M_MPRUSER, M_WAITOK | M_ZERO); error = copyin(ext_page_req->buf, mpr_page, @@ -2298,6 +2307,10 @@ mpr_ioctl(struct cdev *dev, u_long cmd, void *arg, int flag, error = copyout(mpr_page, ext_page_req->buf, ext_page_req->len); break; case MPRIO_WRITE_CFG_PAGE: + if (page_req->len < (int)sizeof(MPI2_CONFIG_PAGE_HEADER)) { + error = EINVAL; + break; + } mpr_page = malloc(page_req->len, M_MPRUSER, M_WAITOK|M_ZERO); error = copyin(page_req->buf, mpr_page, page_req->len); if (error) |