From 90647ff5585ffb1417190e28f88bf1aeed681793 Mon Sep 17 00:00:00 2001 From: Pauli Nieminen Date: Fri, 21 Aug 2009 21:21:16 +0300 Subject: [PATCH] radeon: protect against buffer overflow in state atom debug code. --- src/mesa/drivers/dri/radeon/radeon_common.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/mesa/drivers/dri/radeon/radeon_common.c b/src/mesa/drivers/dri/radeon/radeon_common.c index 4088ef303cf..30d24574edd 100644 --- a/src/mesa/drivers/dri/radeon/radeon_common.c +++ b/src/mesa/drivers/dri/radeon/radeon_common.c @@ -904,6 +904,9 @@ static void radeon_print_state_atom_prekmm(radeonContextPtr radeon, struct radeo fprintf(stderr, " emit %s %d/%d\n", state->name, dwords, state->cmd_size); if (RADEON_DEBUG & DEBUG_VERBOSE) { + if (dwords > state->cmd_size) + dwords = state->cmd_size; + for (i = 0; i < dwords;) { cmd = *((drm_r300_cmd_header_t *) &state->cmd[i]); reg = (cmd.packet0.reghi << 8) | cmd.packet0.reglo; @@ -938,6 +941,8 @@ static void radeon_print_state_atom(radeonContextPtr radeon, struct radeon_state fprintf(stderr, " emit %s %d/%d\n", state->name, dwords, state->cmd_size); if (RADEON_DEBUG & DEBUG_VERBOSE) { + if (dwords > state->cmd_size) + dwords = state->cmd_size; for (i = 0; i < state->cmd_size;) { packet0 = state->cmd[i]; reg = (packet0 & 0x1FFF) << 2; -- 2.30.2