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Date: Tue, 9 Jul 2019 13:17:12 -0700 From: Eric Biggers <ebiggers@...nel.org> To: David Howells <dhowells@...hat.com>, keyrings@...r.kernel.org Cc: Valdis Klētnieks <valdis.kletnieks@...edu>, David Woodhouse <dwmw2@...radead.org>, linux-kernel@...r.kernel.org Subject: Re: next-20190705 - problems generating certs/x509_certificate_list On Fri, Jul 05, 2019 at 11:44:18PM -0400, Valdis Klētnieks wrote: > This worked fine in next-20190618, but in next-20190701 I'm seeing dmesg > entries at boot: > > dmesg | grep -i x.509 > [ 8.345699] Loading compiled-in X.509 certificates > [ 8.366137] Problem loading in-kernel X.509 certificate (-13) > [ 8.507348] cfg80211: Loading compiled-in X.509 certificates for regulatory database > [ 8.526556] cfg80211: Problem loading in-kernel X.509 certificate (-13) > > I start debugging, and discover that certs/x509_certificate_list is a zero-length file. > I rm it, and 'make V=1 certs/system_certificates.o', which tells me: > > (....) > make -f ./scripts/Makefile.headersinst obj=include/uapi > make -f ./scripts/Makefile.headersinst obj=arch/x86/include/uapi > make -f ./scripts/Makefile.build obj=certs certs/system_certificates.o > ---- smoking gun alert > scripts/extract-cert "" certs/x509_certificate_list > ---- > gcc -Wp,-MD,certs/.system_certificates.o.d -nostdinc -isystem /usr/lib/gcc/x86_64-redhat-linux/9/include -I./arch/x86/include -I./arch/x86/include/generated -I./include -I./arch/x86/include/uapi -I./arch/x86/include/generated/uapi -I./include/uapi -I./include/generated/uapi -include ./include/linux/kconfig.h -D__KERNEL__ -D__ASSEMBLY__ -fno-PIE -m64 -DCONFIG_AS_CFI=1 -DCONFIG_AS_CFI_SIGNAL_FRAME=1 -DCONFIG_AS_CFI_SECTIONS=1 -DCONFIG_AS_SSSE3=1 -DCONFIG_AS_AVX=1 -DCONFIG_AS_AVX2=1 -DCONFIG_AS_AVX512=1 -DCONFIG_AS_SHA1_NI=1 -DCONFIG_AS_SHA256_NI=1 -Wa,-gdwarf-2 -DCC_USING_FENTRY -I. -c -o certs/system_certificates.o certs/system_certificates.S > > I go look at extract-cert.c, and sure enough, if the first parameter is a null string > it just goes and creates an empty file. > > The Makefile says: > > quiet_cmd_extract_certs = EXTRACT_CERTS $(patsubst "%",%,$(2)) > cmd_extract_certs = scripts/extract-cert $(2) $@ > > and damned if I know why $(2) is "". Diffed the config files from -0618 and -0705, > not seeing anything relevant difference. > > Any ideas? > I'm seeing on mainline now: [ 10.915386] Problem loading in-kernel X.509 certificate (-13) - Eric
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