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The RAR5 double-free in init_unpack() is a regression introduced upstream by commit 620bdafa on 2026-05-16 and existed only on the git master branch until it was fixed by PR #3071 (commit 1c914cdf) on 2026-05-24. It was never part of an upstream release. The upstream release tarballs (3.6.x/3.7.x/3.8.6) use the older init_unpack() with unchecked calloc and no early-return path, so the freed window_buf/filtered_buf pointers are never left dangling and the double-free cannot occur. References: https://nvd.nist.gov/vuln/detail/CVE-2026-14164 https://lore.kernel.org/openembedded-core/0447ebc9d29b0736de8ba0c75f155ed4f880d072.camel@pbarker.dev/ (From OE-Core rev: 6bc3e86bab4af0762400cb86f0b6932d6fa50433) Signed-off-by: Daniel Turull <daniel.turull@ericsson.com> Signed-off-by: Yoann Congal <yoann.congal@smile.fr> Signed-off-by: Paul Barker <paul@pbarker.dev>