libinstpatch: libInstPatch through 1.1.7 contains a heap out-of-bounds write vulnerability in the SoundFont 2 loader because ipatch...
CVE-2026-111136 is fixed in 5 products on 1 platform, first by DEBIAN-CVE-2026-111136, released November 1, 2026. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| libinstpatch · Debian 14 | 1.1.8-1 | DEBIAN-CVE-2026-111136 | Nov 1, 2026 |
| libinstpatch · Fedora 43 | 1.1.8-1.fc43 | FEDORA-2026-7F1BCC426B | Nov 7, 2026 |
| libinstpatch-debuginfo · Fedora 43 | 1.1.8-1.fc43 | FEDORA-2026-7F1BCC426B | Nov 7, 2026 |
| libinstpatch-debugsource · Fedora 43 | 1.1.8-1.fc43 | FEDORA-2026-7F1BCC426B | Nov 7, 2026 |
| libinstpatch-devel · Fedora 43 | 1.1.8-1.fc43 | FEDORA-2026-7F1BCC426B | Nov 7, 2026 |
| libinstpatch-doc · Fedora 43 | 1.1.8-1.fc43 | FEDORA-2026-7F1BCC426B | Nov 7, 2026 |
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