From nobody Tue Jan 20 14:42:44 2026 X-Original-To: dev-commits-src-main@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4dwVRS5tDmz6PfMl for ; Tue, 20 Jan 2026 14:42:44 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R13" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4dwVRS4SXbz3xdH for ; Tue, 20 Jan 2026 14:42:44 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1768920164; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=bxx61Cy1aVqfz36ByEPcZyAIKNPw8J4vsOsWtEsVlNE=; b=rMNKT0EQpvEm9quvN3biNgHhakQvsYaLqww11cWHV/0/h/ZMGhnCldjOevUV+u/UR4vKB7 q9OHInLgGVP1CTFUQ8g5aLVNKhL0+hOOuWMBv8cKGVTJ0Ci1qYDMrPi/PAQvuRO+YxEXwt c55Cjsq3jgzAFZjPiEAENqYdDfyZNUjBJwYh8dgu9fc9FhAsUa8tXbBjWslO7Nx+sQLfYi 96LRZ3A6UwCJdUH1pNgLBCd7uvrFr2/2zyM2NWPIF9LCgiLH9Ic8aYRJtH8YinWskYEjGZ b6hlB9VZTpCgzSSdrzFukq//GkBsSSBaJtEDnhpAmjTsTn/43avwMrTUjIDAfQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1768920164; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=bxx61Cy1aVqfz36ByEPcZyAIKNPw8J4vsOsWtEsVlNE=; b=oxPwLEHMdaV5non8PVYLZWaAsa6lrrzp+40bp2pFdCTyWD+JgcXh3LhLsJNprHiFQONw+h p7rYcdBYQRe4gQuvBFcRigq3mZDdHDg0RulZbkTdK1pZE/p7WkW/jelGGRz6ENErOh0uYp eIGG33LYPZv38MPrYh8GYKcrdFsv36T85od8FywmH/LFU4Ou7ELXJg+8ZUv3CLbLfdReyN KJGw8PgSv+Sy3klOSvGInlOG1pH7gnHel4Tr4P+YYLrpzOl2ha1I55VUt28pEmJ7Z2KKZx FdyLGxQcoIyQ00tl4fvBZXzJnA2RdrbXTc9UouN9MUY9QdSDX4zwOuf0b0XI8w== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1768920164; a=rsa-sha256; cv=none; b=gAlj/WSDpvoINk/IVEYftwBsdLyEjbs/ZTx8b7X7efpWPWzFrm/a41vaCnIYroci135dtX CIugEvv7XtnoOixN6swItMm5gjaRiRVEXN8Xr9fmhvYToGlS4ZMDsHX6+Y5QxNORXm/kWw ytFh55EDCXiNvG0mqsOMZj83ycEYCrOR6KK5rzQZcjdjE3kRTehvcdI7Jm9vYdPdVE7Hjy dw0Cny+kkd3/bsiMp6LSgZe8wyxSECVC99ILP0/MkSBtW7Y7ueao2Fo54u2AAHYlG4a6si y9/oT6r7tIfvnlu78k/90MwOdkV4ly+ML57kH05ke61VkV2a7qtZ33LqMGaPvg== ARC-Authentication-Results: i=1; mx1.freebsd.org; none Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) by mxrelay.nyi.freebsd.org (Postfix) with ESMTP id 4dwVRS40rxz1LB9 for ; Tue, 20 Jan 2026 14:42:44 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id f369 by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Tue, 20 Jan 2026 14:42:44 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Konstantin Belousov Subject: git: be1b2da855cc - main - sys/abi_compat.h: fix UB for bintime32 handling List-Id: Commit messages for the main branch of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-main List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-main@freebsd.org Sender: owner-dev-commits-src-main@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: kib X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: be1b2da855cc38531733b5c97891cd4a40a993bc Auto-Submitted: auto-generated Date: Tue, 20 Jan 2026 14:42:44 +0000 Message-Id: <696f9464.f369.3821ab5e@gitrepo.freebsd.org> The branch main has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=be1b2da855cc38531733b5c97891cd4a40a993bc commit be1b2da855cc38531733b5c97891cd4a40a993bc Author: Konstantin Belousov AuthorDate: 2026-01-12 04:46:15 +0000 Commit: Konstantin Belousov CommitDate: 2026-01-20 14:42:35 +0000 sys/abi_compat.h: fix UB for bintime32 handling Do not cast and then access potentially unaligned uint64_t in the BT_CP() macro. Use freebsd32_uint64_t type and FU64_CP() for the frac member. Noted by: des Reviewed by: des, emaste Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D54663 --- sys/compat/freebsd32/freebsd32.h | 2 +- sys/sys/abi_compat.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/sys/compat/freebsd32/freebsd32.h b/sys/compat/freebsd32/freebsd32.h index 7324f9adf70c..7d21a5be5570 100644 --- a/sys/compat/freebsd32/freebsd32.h +++ b/sys/compat/freebsd32/freebsd32.h @@ -70,7 +70,7 @@ struct itimerspec32 { struct bintime32 { time32_t sec; - uint32_t frac[2]; + freebsd32_uint64_t frac; }; struct ffclock_estimate32 { diff --git a/sys/sys/abi_compat.h b/sys/sys/abi_compat.h index 0a7110191430..bd99a21d8e23 100644 --- a/sys/sys/abi_compat.h +++ b/sys/sys/abi_compat.h @@ -77,7 +77,7 @@ #define BT_CP(src, dst, fld) do { \ CP((src).fld, (dst).fld, sec); \ - *(uint64_t *)&(dst).fld.frac[0] = (src).fld.frac; \ + FU64_CP((src).fld, (dst).fld, frac); \ } while (0) #endif /* !_COMPAT_H_ */