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translate-all: Prevent null-pointer dereference possibility in tb_clean_internal()

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Lioncash 2018-03-15 23:31:47 -04:00
parent f476e4b598
commit 1a1a187292
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GPG key ID: 4E3C3CC1031BA9C7
1 changed files with 2 additions and 2 deletions
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4
qemu/accel/tcg/translate-all.c
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@ -174,11 +174,11 @@ static void cpu_gen_init(struct uc_struct *uc)
static void tb_clean_internal(struct uc_struct *uc, int i, void** lp) static void tb_clean_internal(struct uc_struct *uc, int i, void** lp)
{ {
if (i == 0 || lp == 0) { if (i == 0 || lp == NULL) {
return; return;
} }
tb_clean_internal(uc, i-1, (void*)(((char*)*lp) + ((0 >> (i * V_L2_BITS)) & (V_L2_SIZE - 1))));
if (lp && *lp) { if (lp && *lp) {
tb_clean_internal(uc, i-1, (void*)(((char*)*lp) + ((0 >> (i * V_L2_BITS)) & (V_L2_SIZE - 1))));
g_free(*lp); g_free(*lp);
} }
} }