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mcctrl: abort on invalid addr in mcexec_transfer_image()

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Change-Id: Ic064b6ffc30368ff1d3dfb14403e524cbb837ce5
This commit is contained in:
Balazs Gerofi
2021-01-12 20:37:54 +09:00
committed by Masamichi Takagi
parent bf926f234a
commit 2460228052
1 changed files with 6 additions and 1 deletions
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7
executer/kernel/mcctrl/control.c
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@@ -281,7 +281,12 @@ int mcexec_transfer_image(ihk_os_t os, struct remote_transfer *__user upt)
#else #else
rpm = ihk_device_map_virtual(ihk_os_to_dev(os), phys, PAGE_SIZE, NULL, 0); rpm = ihk_device_map_virtual(ihk_os_to_dev(os), phys, PAGE_SIZE, NULL, 0);
#endif #endif
if (!rpm) {
pr_err("%s(): error: invalid remote address\n", __func__);
return -EFAULT;
}
if (pt.direction == MCEXEC_UP_TRANSFER_TO_REMOTE) { if (pt.direction == MCEXEC_UP_TRANSFER_TO_REMOTE) {
if (copy_from_user(rpm, pt.userp, pt.size)) { if (copy_from_user(rpm, pt.userp, pt.size)) {
ret = -EFAULT; ret = -EFAULT;