If the vbios is corrupted it can indicate more performance entries than the ones statically allocated, causing overwriting of kernel memory
Signed-off-by: Emil Velikov <[email protected]> --- drivers/gpu/drm/nouveau/nouveau_perf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_perf.c b/drivers/gpu/drm/nouveau/nouveau_perf.c index af03fb4..36a9ae3 100644 --- a/drivers/gpu/drm/nouveau/nouveau_perf.c +++ b/drivers/gpu/drm/nouveau/nouveau_perf.c @@ -61,7 +61,7 @@ nouveau_perf_entry(struct nouveau_device *ndev, int idx, u8 *ver, u8 *hdr, u8 *cnt, u8 *len) { u8 *perf = nouveau_perf_table(ndev, ver); - if (perf) { + if (perf && idx < NOUVEAU_PM_MAX_LEVEL) { if (*ver >= 0x12 && *ver < 0x20 && idx < perf[2]) { *hdr = perf[3]; *cnt = 0; -- 1.7.10.2 _______________________________________________ Nouveau mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/nouveau
