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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: stable@vger.kernel.org
Cc: "Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
	patches@lists.linux.dev, "Willy Tarreau" <w@1wt.eu>,
	"Thomas Weißschuh" <linux@weissschuh.net>,
	"Paul E. McKenney" <paulmck@kernel.org>
Subject: [PATCH 6.4 02/13] tools/nolibc: x86_64: disable stack protector for _start
Date: Mon,  3 Jul 2023 20:54:03 +0200	[thread overview]
Message-ID: <20230703184519.337832727@linuxfoundation.org> (raw)
In-Reply-To: <20230703184519.261119397@linuxfoundation.org>

From: Thomas Weißschuh <linux@weissschuh.net>

commit 7a9b2345202a14dfec9081994486156f7a691513 upstream.

This was forgotten in the original submission.

It is unknown why it worked for x86_64 on some compiler without this
attribute.

Reported-by: Willy Tarreau <w@1wt.eu>
Closes: https://lore.kernel.org/lkml/20230520133237.GA27501@1wt.eu/
Fixes: 0d8c461adbc4 ("tools/nolibc: x86_64: add stackprotector support")
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/include/nolibc/arch-x86_64.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/include/nolibc/arch-x86_64.h b/tools/include/nolibc/arch-x86_64.h
index d98f6c89d143..e201af15e142 100644
--- a/tools/include/nolibc/arch-x86_64.h
+++ b/tools/include/nolibc/arch-x86_64.h
@@ -190,7 +190,7 @@ const unsigned long *_auxv __attribute__((weak));
  * 2) The deepest stack frame should be zero (the %rbp).
  *
  */
-void __attribute__((weak,noreturn,optimize("omit-frame-pointer"))) _start(void)
+void __attribute__((weak,noreturn,optimize("omit-frame-pointer"),no_stack_protector)) _start(void)
 {
 	__asm__ volatile (
 #ifdef NOLIBC_STACKPROTECTOR
-- 
2.41.0




  parent reply	other threads:[~2023-07-03 18:55 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-07-03 18:54 [PATCH 6.4 00/13] 6.4.2-rc1 review Greg Kroah-Hartman
2023-07-03 18:54 ` [PATCH 6.4 01/13] xtensa: fix lock_mm_and_find_vma in case VMA not found Greg Kroah-Hartman
2023-07-03 18:54 ` Greg Kroah-Hartman [this message]
2023-07-03 18:54 ` [PATCH 6.4 03/13] PCI/ACPI: Validate acpi_pci_set_power_state() parameter Greg Kroah-Hartman
2023-07-03 18:54 ` [PATCH 6.4 04/13] PCI/ACPI: Call _REG when transitioning D-states Greg Kroah-Hartman
2023-07-03 18:54 ` [PATCH 6.4 05/13] execve: always mark stack as growing down during early stack setup Greg Kroah-Hartman
2023-07-03 18:54 ` [PATCH 6.4 06/13] nfs: dont report STATX_BTIME in ->getattr Greg Kroah-Hartman
2023-07-03 18:54 ` [PATCH 6.4 07/13] Revert "cxl/port: Enable the HDM decoder capability for switch ports" Greg Kroah-Hartman
2023-07-03 18:54 ` [PATCH 6.4 08/13] nubus: Partially revert proc_create_single_data() conversion Greg Kroah-Hartman
2023-07-03 18:54 ` [PATCH 6.4 09/13] hugetlb: revert use of page_cache_next_miss() Greg Kroah-Hartman
2023-07-03 18:54 ` [PATCH 6.4 10/13] scripts/tags.sh: Resolve gtags empty index generation Greg Kroah-Hartman
2023-07-03 18:54 ` [PATCH 6.4 11/13] docs: Set minimal gtags / GNU GLOBAL version to 6.6.5 Greg Kroah-Hartman
2023-07-03 18:54 ` [PATCH 6.4 12/13] dm ioctl: Avoid double-fetch of version Greg Kroah-Hartman
2023-07-03 18:54 ` [PATCH 6.4 13/13] drm/amdgpu: Validate VM ioctl flags Greg Kroah-Hartman

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