CVE-2026-111136

Name	CVE-2026-111136
Description	libInstPatch through 1.1.7 contains a heap out-of-bounds write vulnerability in the SoundFont 2 loader because ipatch_sf2_gen_is_valid() does not range-check generator IDs before the validity mask test. Attackers can supply crafted SF2 files with out-of-range pgen or igen generator IDs to write attacker-chosen values past the zone genarray, corrupting heap memory and crashing Swami or other consumers.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
libinstpatch (PTS)	bookworm, trixie	1.1.6-1	vulnerable
	forky, sid	1.1.8-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
libinstpatch	source	(unstable)	1.1.8-1

Notes

[trixie] - libinstpatch <no-dsa> (Minor issue)
https://github.com/swami/libinstpatch/pull/87
Fixed by: https://github.com/swami/libinstpatch/commit/74537412a68e5a4a77d01e7d66c824087d0e2cd9 (v1.1.8)