external/ton
1
0
Fork 0
mirror of https://github.com/ton-blockchain/ton synced 2025-03-09 15:40:10 +00:00
Code Issues Releases Wiki Activity

Fix undefined behavior code (#464)

Browse source 
* Fix UB in arithmetics

* Fix misaligned allocations in validator sessions

* Fix integer overflow in bigint.hpp

* Fix potential UB

Co-authored-by: SpyCheese <mikle98@yandex.ru>
This commit is contained in:
EmelyanenkoK 2022-09-19 17:31:54 +03:00 • committed by GitHub
parent 440d06962a
commit 9c6787d2ff
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
8 changed files with 86 additions and 71 deletions
Download patch file Download diff file Expand all files Collapse all files

2
crypto/vm/tonops.cpp
View file

@ -474,7 +474,7 @@ int exec_store_var_integer(VmState* st, int len_bits, bool sgnd, bool quiet) {
stack.check_underflow(2);
auto x = stack.pop_int();
auto cbr = stack.pop_builder();
unsigned len = ((x->bit_size(sgnd) + 7) >> 3);
unsigned len = (((unsigned)x->bit_size(sgnd) + 7) >> 3);
if (len >= (1u << len_bits)) {
throw VmError{Excno::range_chk};
}