From nobody Tue Dec 2 00:04:06 2025 Received: from mailgw.kylinos.cn (mailgw.kylinos.cn [124.126.103.232]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 457202ED869 for ; Tue, 25 Nov 2025 09:58:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=124.126.103.232 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764064708; cv=none; b=W+2mWcVPtor8m6Eiyi2/0KXJcZ+qkuFTgx/+Wp66uzAVGoMq+P6+BC4GI8ndipAlUti1ofcu+XKOMZvVrZQdz2Q3w6HLeAXk9wMJ8rrkeWQc3hl7pJW4dW0afSNeurlSd0mVNxhPftvko6MS66tJqGPEAYfJFfxKXBiv4naMW4A= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764064708; c=relaxed/simple; bh=n1kGV6WpmQcZbO0VPSlilB0UhV5iiSEmokXmy5caMNA=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=djOzpw6/ELQDOhoESZs6S7RcpaVpTPNI1J7F1xWmoUctOaKMlPagA7PeCxyGC43zxF0tnfDPGbwVeijo1yGDxEuBZsOgEMIlvBX6g62Xlh4h2hvo+dnnY9ykZsqWsYkyRoBEE3gMcoOO1lvbbSoUpp0fiKuG9yKKMQExLbZ0A64= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn; spf=pass smtp.mailfrom=kylinos.cn; arc=none smtp.client-ip=124.126.103.232 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=kylinos.cn X-UUID: 450bb486c9e511f0a38c85956e01ac42-20251125 X-CTIC-Tags: HR_CC_COUNT, HR_CC_DOMAIN_COUNT, HR_CC_NO_NAME, HR_CTE_8B, HR_CTT_MISS HR_DATE_H, HR_DATE_WKD, HR_DATE_ZONE, HR_FROM_NAME, HR_SJ_LANG HR_SJ_LEN, HR_SJ_LETTER, HR_SJ_NOR_SYM, HR_SJ_PHRASE, HR_SJ_PHRASE_LEN HR_SJ_WS, HR_TO_COUNT, HR_TO_DOMAIN_COUNT, HR_TO_NO_NAME, IP_TRUSTED SRC_TRUSTED, DN_TRUSTED, SA_EXISTED, SN_EXISTED, SPF_NOPASS DKIM_NOPASS, DMARC_NOPASS, CIE_GOOD, CIE_GOOD_SPF, GTI_FG_BS GTI_RG_INFO, GTI_C_BU, AMN_GOOD, ABX_MISS_RDNS X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.3.6,REQID:70d965af-1493-451b-b76d-2405cd05909f,IP:10,U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:-5,FILE:0,BULK:0,RULE:Release_Ham,ACTION :release,TS:5 X-CID-INFO: VERSION:1.3.6,REQID:70d965af-1493-451b-b76d-2405cd05909f,IP:10,URL :0,TC:0,Content:0,EDM:0,RT:0,SF:-5,FILE:0,BULK:0,RULE:Release_Ham,ACTION:r elease,TS:5 X-CID-META: VersionHash:a9d874c,CLOUDID:1335b17ab73d1136a2a5b6f76db14da7,BulkI D:251125175820DMKWCLFD,BulkQuantity:0,Recheck:0,SF:17|19|38|66|78|102|127| 850|898,TC:nil,Content:0|15|50,EDM:-3,IP:-2,URL:0,File:nil,RT:nil,Bulk:nil ,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES:1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE: 0,ARC:0 X-CID-BVR: 2,SSN|SDN X-CID-BAS: 2,SSN|SDN,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR,TF_CID_SPAM_FAS,TF_CID_SPAM_FSD X-CID-RHF: D41D8CD98F00B204E9800998ECF8427E X-UUID: 450bb486c9e511f0a38c85956e01ac42-20251125 X-User: duanchenghao@kylinos.cn Received: from localhost.localdomain [(223.70.159.239)] by mailgw.kylinos.cn (envelope-from ) (Generic MTA) with ESMTP id 1144435812; Tue, 25 Nov 2025 17:58:19 +0800 From: Chenghao Duan To: chenhuacai@kernel.org, kernel@xen0n.name Cc: yangtiezhu@loongson.cn, zhangtianyang@loongson.cn, masahiroy@kernel.org, linux-kernel@vger.kernel.org, loongarch@lists.linux.dev, duanchenghao@kylinos.cn Subject: [PATCH] LoongArch: Change the signal return for user-mode ADE exceptions Date: Tue, 25 Nov 2025 17:57:58 +0800 Message-Id: <20251125095758.1345956-1-duanchenghao@kylinos.cn> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" When a user-mode process accesses an invalid address, the SIGSEGV signal is returned. For example, when user-space accesses a kernel-space virtual address. Signed-off-by: Chenghao Duan --- arch/loongarch/kernel/traps.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/loongarch/kernel/traps.c b/arch/loongarch/kernel/traps.c index da5926fead4a..508d3126cdb2 100644 --- a/arch/loongarch/kernel/traps.c +++ b/arch/loongarch/kernel/traps.c @@ -537,7 +537,7 @@ asmlinkage void noinstr do_ade(struct pt_regs *regs) irqentry_state_t state =3D irqentry_enter(regs); =20 die_if_kernel("Kernel ade access", regs); - force_sig_fault(SIGBUS, BUS_ADRERR, (void __user *)regs->csr_badvaddr); + force_sig_fault(SIGSEGV, SEGV_MAPERR, (void __user *)regs->csr_badvaddr); =20 irqentry_exit(regs, state); } --=20 2.25.1