CVE-2026-40336 libgphoto2 has memory leak in ptp_unpack_Sony_DPD() secondary enumeration list in ptp-pack.c

libgphoto2 is a camera access and control library. Versions up to and including 2.5.33 have a memory leak in ptpunpackSonyDPD in camlibs/ptp2/ptp-pack.c lines 884–885. When processing a secondary enumeration list introduced in 2024+ Sony cameras, the function overwrites dpd-FORM.Enum.SupportedVal...