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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Kees Cook <keescook@chromium.org>,
	kernel test robot <lkp@intel.com>,
	Russell King <linux@armlinux.org.uk>,
	linux-arm-kernel@lists.infradead.org,
	Sasha Levin <sashal@kernel.org>
Subject: [PATCH AUTOSEL 6.0 14/18] ARM: decompressor: Include .data.rel.ro.local
Date: Sun,  9 Oct 2022 16:51:31 -0400	[thread overview]
Message-ID: <20221009205136.1201774-14-sashal@kernel.org> (raw)
In-Reply-To: <20221009205136.1201774-1-sashal@kernel.org>

From: Kees Cook <keescook@chromium.org>

[ Upstream commit 1b64daf413acd86c2c13f5443f6b4ef3690c8061 ]

The .data.rel.ro.local section has the same semantics as .data.rel.ro
here, so include it in the .rodata section of the decompressor.
Additionally since the .printk_index section isn't usable outside of
the core kernel, discard it in the decompressor. Avoids these warnings:

arm-linux-gnueabi-ld: warning: orphan section `.data.rel.ro.local' from `arch/arm/boot/compressed/fdt_rw.o' being placed in section `.data.rel.ro.local'
arm-linux-gnueabi-ld: warning: orphan section `.printk_index' from `arch/arm/boot/compressed/fdt_rw.o' being placed in section `.printk_index'

Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/linux-mm/202209080545.qMIVj7YM-lkp@intel.com
Cc: Russell King <linux@armlinux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/compressed/vmlinux.lds.S | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/compressed/vmlinux.lds.S b/arch/arm/boot/compressed/vmlinux.lds.S
index 1bcb68ac4b01..3fcb3e62dc56 100644
--- a/arch/arm/boot/compressed/vmlinux.lds.S
+++ b/arch/arm/boot/compressed/vmlinux.lds.S
@@ -23,6 +23,7 @@ SECTIONS
     *(.ARM.extab*)
     *(.note.*)
     *(.rel.*)
+    *(.printk_index)
     /*
      * Discard any r/w data - this produces a link error if we have any,
      * which is required for PIC decompression.  Local data generates
@@ -57,6 +58,7 @@ SECTIONS
     *(.rodata)
     *(.rodata.*)
     *(.data.rel.ro)
+    *(.data.rel.ro.*)
   }
   .piggydata : {
     *(.piggydata)
-- 
2.35.1


WARNING: multiple messages have this Message-ID (diff)
From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Kees Cook <keescook@chromium.org>,
	kernel test robot <lkp@intel.com>,
	Russell King <linux@armlinux.org.uk>,
	linux-arm-kernel@lists.infradead.org,
	Sasha Levin <sashal@kernel.org>
Subject: [PATCH AUTOSEL 6.0 14/18] ARM: decompressor: Include .data.rel.ro.local
Date: Sun,  9 Oct 2022 16:51:31 -0400	[thread overview]
Message-ID: <20221009205136.1201774-14-sashal@kernel.org> (raw)
In-Reply-To: <20221009205136.1201774-1-sashal@kernel.org>

From: Kees Cook <keescook@chromium.org>

[ Upstream commit 1b64daf413acd86c2c13f5443f6b4ef3690c8061 ]

The .data.rel.ro.local section has the same semantics as .data.rel.ro
here, so include it in the .rodata section of the decompressor.
Additionally since the .printk_index section isn't usable outside of
the core kernel, discard it in the decompressor. Avoids these warnings:

arm-linux-gnueabi-ld: warning: orphan section `.data.rel.ro.local' from `arch/arm/boot/compressed/fdt_rw.o' being placed in section `.data.rel.ro.local'
arm-linux-gnueabi-ld: warning: orphan section `.printk_index' from `arch/arm/boot/compressed/fdt_rw.o' being placed in section `.printk_index'

Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/linux-mm/202209080545.qMIVj7YM-lkp@intel.com
Cc: Russell King <linux@armlinux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/compressed/vmlinux.lds.S | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/compressed/vmlinux.lds.S b/arch/arm/boot/compressed/vmlinux.lds.S
index 1bcb68ac4b01..3fcb3e62dc56 100644
--- a/arch/arm/boot/compressed/vmlinux.lds.S
+++ b/arch/arm/boot/compressed/vmlinux.lds.S
@@ -23,6 +23,7 @@ SECTIONS
     *(.ARM.extab*)
     *(.note.*)
     *(.rel.*)
+    *(.printk_index)
     /*
      * Discard any r/w data - this produces a link error if we have any,
      * which is required for PIC decompression.  Local data generates
@@ -57,6 +58,7 @@ SECTIONS
     *(.rodata)
     *(.rodata.*)
     *(.data.rel.ro)
+    *(.data.rel.ro.*)
   }
   .piggydata : {
     *(.piggydata)
-- 
2.35.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2022-10-09 20:53 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-09 20:51 [Cluster-devel] [PATCH AUTOSEL 6.0 01/18] fs: dlm: fix race in lowcomms Sasha Levin
2022-10-09 20:51 ` Sasha Levin
2022-10-09 20:51 ` [PATCH AUTOSEL 6.0 02/18] rcu: Avoid triggering strict-GP irq-work when RCU is idle Sasha Levin
2022-10-09 20:51 ` [PATCH AUTOSEL 6.0 03/18] rcu: Back off upon fill_page_cache_func() allocation failure Sasha Levin
2022-10-09 20:51 ` [PATCH AUTOSEL 6.0 04/18] rcu-tasks: Convert RCU_LOCKDEP_WARN() to WARN_ONCE() Sasha Levin
2022-10-09 20:51 ` [PATCH AUTOSEL 6.0 05/18] rcu-tasks: Ensure RCU Tasks Trace loops have quiescent states Sasha Levin
2022-10-09 20:51 ` [PATCH AUTOSEL 6.0 06/18] cpufreq: amd_pstate: fix wrong lowest perf fetch Sasha Levin
2022-10-09 20:51 ` [PATCH AUTOSEL 6.0 07/18] ACPI: video: Add Toshiba Satellite/Portege Z830 quirk Sasha Levin
2022-10-09 20:51 ` [PATCH AUTOSEL 6.0 08/18] fortify: Fix __compiletime_strlen() under UBSAN_BOUNDS_LOCAL Sasha Levin
2022-10-09 20:51 ` [PATCH AUTOSEL 6.0 09/18] ACPI: tables: FPDT: Don't call acpi_os_map_memory() on invalid phys address Sasha Levin
2022-10-09 20:51 ` [PATCH AUTOSEL 6.0 10/18] cpufreq: intel_pstate: Add Tigerlake support in no-HWP mode Sasha Levin
2022-10-09 20:51 ` [PATCH AUTOSEL 6.0 11/18] MIPS: BCM47XX: Cast memcmp() of function to (void *) Sasha Levin
2022-10-09 20:51 ` [PATCH AUTOSEL 6.0 12/18] powercap: intel_rapl: fix UBSAN shift-out-of-bounds issue Sasha Levin
2022-10-09 20:51 ` [PATCH AUTOSEL 6.0 13/18] thermal: intel_powerclamp: Use get_cpu() instead of smp_processor_id() to avoid crash Sasha Levin
2022-10-09 20:51 ` Sasha Levin [this message]
2022-10-09 20:51   ` [PATCH AUTOSEL 6.0 14/18] ARM: decompressor: Include .data.rel.ro.local Sasha Levin
2022-10-09 20:51 ` [PATCH AUTOSEL 6.0 15/18] ACPI: x86: Add a quirk for Dell Inspiron 14 2-in-1 for StorageD3Enable Sasha Levin
2022-10-09 20:51 ` [PATCH AUTOSEL 6.0 16/18] x86/entry: Work around Clang __bdos() bug Sasha Levin
2022-10-09 20:51 ` [PATCH AUTOSEL 6.0 17/18] NFSD: Return nfserr_serverfault if splice_ok but buf->pages have data Sasha Levin
2022-10-09 20:51 ` [PATCH AUTOSEL 6.0 18/18] NFSD: fix use-after-free on source server when doing inter-server copy Sasha Levin

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