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GET /api/1.2/patches/2222676/?format=api
{ "id": 2222676, "url": "http://patchwork.ozlabs.org/api/1.2/patches/2222676/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260413115622.160212-1-scherer.simon89@gmail.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/1.2/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260413115622.160212-1-scherer.simon89@gmail.com>", "list_archive_url": null, "date": "2026-04-13T11:56:22", "name": "target/i386: fix missing PF_INSTR in SIGSEGV context", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "71c6b9f52f442e143131ed95c8a5cda91265c0f6", "submitter": { "id": 93130, "url": "http://patchwork.ozlabs.org/api/1.2/people/93130/?format=api", "name": "Simon Scherer", "email": "scherer.simon89@gmail.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260413115622.160212-1-scherer.simon89@gmail.com/mbox/", "series": [ { "id": 499691, "url": "http://patchwork.ozlabs.org/api/1.2/series/499691/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=499691", "date": "2026-04-13T11:56:22", "name": "target/i386: fix missing PF_INSTR in SIGSEGV context", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/499691/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2222676/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2222676/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=nGzloVa8;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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helo=mail-wm1-x32e.google.com", "X-Spam_score_int": "-17", "X-Spam_score": "-1.8", "X-Spam_bar": "-", "X-Spam_report": "(-1.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001,\n RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001,\n SPF_PASS=-0.001 autolearn=ham autolearn_force=no", "X-Spam_action": "no action", "X-Mailman-Approved-At": "Mon, 13 Apr 2026 08:17:20 -0400", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "qemu development <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "When running linux-user emulation, the SIGSEGV handler does not\ncorrectly set the 4th bit (PF_INSTR) in the error_code variable of\nthe context argument (context->uc_mcontext.gregs[REG_ERR]).\n\nBecause this bit is never set, guest applications cannot distinguish\nif a fault was due to missing executable permissions. This patch\nensures that when a page fault occurs during an instruction fetch,\nthe PF_INSTR flag is properly populated in the signal context.\n\nResolves: https://gitlab.com/qemu-project/qemu/-/work_items/3384\nSigned-off-by: Simon Scherer <scherer.simon89@gmail.com>\n---\n VERSION | 2 +-\n target/i386/tcg/user/excp_helper.c | 7 ++++---\n 2 files changed, 5 insertions(+), 4 deletions(-)", "diff": "diff --git a/VERSION b/VERSION\nindex de760e732f..340ebebb29 100644\n--- a/VERSION\n+++ b/VERSION\n@@ -1 +1 @@\n-10.2.92\n+10.2.93\ndiff --git a/target/i386/tcg/user/excp_helper.c b/target/i386/tcg/user/excp_helper.c\nindex 98fab4cbc3..6c5df5e0e8 100644\n--- a/target/i386/tcg/user/excp_helper.c\n+++ b/target/i386/tcg/user/excp_helper.c\n@@ -36,9 +36,10 @@ void x86_cpu_record_sigsegv(CPUState *cs, vaddr addr,\n * signal and set exception_index to EXCP_INTERRUPT.\n */\n env->cr[2] = addr;\n- env->error_code = ((access_type == MMU_DATA_STORE) << PG_ERROR_W_BIT)\n- | (maperr ? 0 : PG_ERROR_P_MASK)\n- | PG_ERROR_U_MASK;\n+ env->error_code = (maperr ? 0 : PG_ERROR_P_MASK)\n+ | ((access_type == MMU_DATA_STORE) << PG_ERROR_W_BIT)\n+ | PG_ERROR_U_MASK\n+ | ((access_type == MMU_INST_FETCH) ? PG_ERROR_I_D_MASK : 0);\n cs->exception_index = EXCP0E_PAGE;\n \n /* Disable do_interrupt_user. */\n", "prefixes": [] }