{"id":2227921,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2227921/?format=json","web_url":"http://patchwork.ozlabs.org/project/buildroot/patch/20260424132326.825570-8-jeanmichel.hautbois@yoseli.org/","project":{"id":27,"url":"http://patchwork.ozlabs.org/api/1.1/projects/27/?format=json","name":"Buildroot development","link_name":"buildroot","list_id":"buildroot.buildroot.org","list_email":"buildroot@buildroot.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20260424132326.825570-8-jeanmichel.hautbois@yoseli.org>","date":"2026-04-24T13:23:22","name":"[07/11] package/dropbear: disable ML-KEM768 on m68k","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"226909c1ff26e80faa66b0d0c7d62607f8e38094","submitter":{"id":86730,"url":"http://patchwork.ozlabs.org/api/1.1/people/86730/?format=json","name":"Jean-Michel Hautbois","email":"jeanmichel.hautbois@yoseli.org"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/buildroot/patch/20260424132326.825570-8-jeanmichel.hautbois@yoseli.org/mbox/","series":[{"id":501366,"url":"http://patchwork.ozlabs.org/api/1.1/series/501366/?format=json","web_url":"http://patchwork.ozlabs.org/project/buildroot/list/?series=501366","date":"2026-04-24T13:23:15","name":"Add ColdFire MCF5441x (m68k) support","version":1,"mbox":"http://patchwork.ozlabs.org/series/501366/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2227921/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2227921/checks/","tags":{},"headers":{"Return-Path":"","X-Original-To":["incoming-buildroot@patchwork.ozlabs.org","buildroot@buildroot.org"],"Delivered-To":["patchwork-incoming-buildroot@legolas.ozlabs.org","buildroot@buildroot.org"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=buildroot.org header.i=@buildroot.org\n header.a=rsa-sha256 header.s=default header.b=U3SEW62l;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=buildroot.org\n (client-ip=2605:bc80:3010::138; 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charset=\"us-ascii\"","Content-Transfer-Encoding":"7bit","Errors-To":"buildroot-bounces@buildroot.org","Sender":"\"buildroot\" "},"content":"ML-KEM768 post-quantum key exchange code (in the vendored header\nsrc/libcrux_mlkem768_sha3.h) triggers a GCC internal compiler error\n(ICE) in cselib_record_set during the postreload CSE pass on m68k.\nReproduced on m68k-buildroot-linux-uclibc (cf5441x, -O2) with both\nGCC 14.3.0 (the current Buildroot default for m68k) and GCC 15.2.0.\n\nThe failing pass backtrace is:\n reload_cse_regs_1\n -> pass_postreload_cse::execute\n -> cselib_process_insn\n -> cselib_record_sets\n -> cselib_record_set (cselib.cc:2869 on gcc 15)\n\nDisable ML-KEM768 via localoptions.h on m68k until the GCC bug is\nresolved. Standard key exchange algorithms remain available.\n\nSigned-off-by: Jean-Michel Hautbois \n---\n package/dropbear/dropbear.mk | 7 +++++++\n 1 file changed, 7 insertions(+)","diff":"diff --git a/package/dropbear/dropbear.mk b/package/dropbear/dropbear.mk\nindex e4e42cf994..52bc15e346 100644\n--- a/package/dropbear/dropbear.mk\n+++ b/package/dropbear/dropbear.mk\n@@ -62,6 +62,13 @@ endef\n DROPBEAR_POST_EXTRACT_HOOKS += DROPBEAR_SVR_PASSWORD_AUTH\n endif\n \n+ifeq ($(BR2_m68k),y)\n+define DROPBEAR_DISABLE_MLKEM\n+\techo '#define DROPBEAR_MLKEM768 0' >> $(@D)/localoptions.h\n+endef\n+DROPBEAR_POST_EXTRACT_HOOKS += DROPBEAR_DISABLE_MLKEM\n+endif\n+\n ifeq ($(BR2_PACKAGE_DROPBEAR_LEGACY_CRYPTO),y)\n define DROPBEAR_ENABLE_LEGACY_CRYPTO\n \techo '#define DROPBEAR_3DES 1' >> $(@D)/localoptions.h\n","prefixes":["07/11"]}