diff options
| -rw-r--r-- | src/pcresearch.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/pcresearch.c b/src/pcresearch.c index 3bdaee90..09f92c85 100644 --- a/src/pcresearch.c +++ b/src/pcresearch.c @@ -72,8 +72,11 @@ jit_exec (struct pcre_comp *pc, char const *subject, int search_bytes, search_offset, options, sub, NSUB); #if PCRE_STUDY_JIT_COMPILE + /* Going over this would trigger an int overflow bug within PCRE. */ + int jitstack_max = INT_MAX - 8 * 1024; + if (e == PCRE_ERROR_JIT_STACKLIMIT - && 0 < pc->jit_stack_size && pc->jit_stack_size <= INT_MAX / 2) + && 0 < pc->jit_stack_size && pc->jit_stack_size <= jitstack_max / 2) { int old_size = pc->jit_stack_size; int new_size = pc->jit_stack_size = old_size * 2; |