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sanity check for u32 cast for combs_cnt, bfs_cnt

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philsmd 2022-03-13 14:25:09 +01:00 committed by GitHub
parent 8bc4a92089
commit 5d9d3c7eb7
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1 changed files with 11 additions and 0 deletions
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11
src/backend.c
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@ -3595,6 +3595,17 @@ int run_cracker (hashcat_ctx_t *hashcat_ctx, hc_device_param_t *device_param, co
} }
else else
{ {
// sanity check: do NOT cast to an u32 integer type without checking that it is safe (upper bits must NOT be set)
if (user_options_extra->attack_kern == ATTACK_KERN_COMBI)
{
if (combinator_ctx->combs_cnt >> 32) != 0) return -1;
}
else if (user_options_extra->attack_kern == ATTACK_KERN_BF)
{
if (mask_ctx->bfs_cnt >> 32) != 0) return -1;
}
if (hashconfig->attack_exec == ATTACK_EXEC_INSIDE_KERNEL) innerloop_step = device_param->kernel_loops; if (hashconfig->attack_exec == ATTACK_EXEC_INSIDE_KERNEL) innerloop_step = device_param->kernel_loops;
else innerloop_step = 1; else innerloop_step = 1;