c-ares / c-ares / 26365595581

92%

Build Type

push

github

Committed by web-flow

Commit Message

prevent integer overflow in buffer size calculation (#1116)

fix: prevent integer overflow in buffer size calculation

Validate buffer growth using a safe pre-check to ensure
data_len + needed_size + 1 does not overflow size_t.

Also harden growth logic to avoid wraparound during doubling
and handle zero-sized allocations safely.

Signed-off-by: @uwezkhan

Coverage Stats

5 of 6 new or added lines in 1 file covered. (83.33%)

3 existing lines in 2 files now uncovered.

22907 of 24980 relevant lines covered (91.7%)

12798.95 hits per line