undefined behavior

CVE-2026-46101 is a newly published Linux kernel vulnerability, recorded by NVD on May 27, 2026, in which malformed nftables bitwise shift rules could trigger undefined behavior in netfilter’s nft_bitwise packet-processing path. The fix is tiny, but the lesson is not. A three-line validation...

The zlib library’s inftrees.c bug tracked as CVE-2016-9840 is a subtle but consequential example of how a tiny, non‑portable C optimization can become a wide‑ranging security headache — it allowed improper pointer arithmetic in zlib 1.2.8 to create undefined behavior that, in downstream...

The Linux kernel received a small but important correction to its DRM/TTM subsystem that eliminates an instance of undefined behavior triggered by a signed left-shift of a 32‑bit integer — a fix tracked as CVE‑2022‑50390 that changes a flag definition from a signed shift to an unsigned shift to...

You’d think that after two decades, the digital skies of Grand Theft Auto: San Andreas would hold no more surprises—but just when you thought it was safe to go back in the water (or, rather, to try taking off from it), a bug as old as some Gen Zers themselves emerges, causing fans to wonder: are...