From: Viresh Kumar <viresh.kumar@linaro.org>
To: stable@vger.kernel.org
Cc: Viresh Kumar <viresh.kumar@linaro.org>,
Julien Thierry <Julien.Thierry@arm.com>,
linux-arm-kernel@lists.infradead.org,
Catalin Marinas <catalin.marinas@arm.com>,
Marc Zyngier <marc.zyngier@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Will Deacon <will.deacon@arm.com>,
Russell King <rmk+kernel@arm.linux.org.uk>,
Vincent Guittot <vincent.guittot@linaro.org>,
mark.brown@arm.com, guohanjun@huawei.com
Subject: [PATCH ARM32 v4.4 V2 38/47] ARM: 8810/1: vfp: Fix wrong assignement to ufp_exc
Date: Thu, 1 Aug 2019 13:46:22 +0530 [thread overview]
Message-ID: <17ef1620483a77f70c7c27e64cba3ad1684626c7.1564646727.git.viresh.kumar@linaro.org> (raw)
In-Reply-To: <cover.1564646727.git.viresh.kumar@linaro.org>
From: Julien Thierry <julien.thierry@arm.com>
Commit 5df7a99bdd0de4a0480320264c44c04543c29d5a upstream.
In vfp_preserve_user_clear_hwstate, ufp_exc->fpinst2 gets assigned to
itself. It should actually be hwstate->fpinst2 that gets assigned to the
ufp_exc field.
Fixes commit 3aa2df6ec2ca6bc143a65351cca4266d03a8bc41 ("ARM: 8791/1:
vfp: use __copy_to_user() when saving VFP state").
Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Julien Thierry <julien.thierry@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
arch/arm/vfp/vfpmodule.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c
index f07567eedd82..f9392fb060ea 100644
--- a/arch/arm/vfp/vfpmodule.c
+++ b/arch/arm/vfp/vfpmodule.c
@@ -583,7 +583,7 @@ int vfp_preserve_user_clear_hwstate(struct user_vfp *ufp,
*/
ufp_exc->fpexc = hwstate->fpexc;
ufp_exc->fpinst = hwstate->fpinst;
- ufp_exc->fpinst2 = ufp_exc->fpinst2;
+ ufp_exc->fpinst2 = hwstate->fpinst2;
/* Ensure that VFP is disabled. */
vfp_flush_hwstate(thread);
--
2.21.0.rc0.269.g1a574e7a288b
WARNING: multiple messages have this Message-ID (diff)
From: Viresh Kumar <viresh.kumar@linaro.org>
To: stable@vger.kernel.org
Cc: Mark Rutland <mark.rutland@arm.com>,
Julien Thierry <Julien.Thierry@arm.com>,
Marc Zyngier <marc.zyngier@arm.com>,
Viresh Kumar <viresh.kumar@linaro.org>,
guohanjun@huawei.com, Will Deacon <will.deacon@arm.com>,
mark.brown@arm.com, Catalin Marinas <catalin.marinas@arm.com>,
Russell King <rmk+kernel@arm.linux.org.uk>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH ARM32 v4.4 V2 38/47] ARM: 8810/1: vfp: Fix wrong assignement to ufp_exc
Date: Thu, 1 Aug 2019 13:46:22 +0530 [thread overview]
Message-ID: <17ef1620483a77f70c7c27e64cba3ad1684626c7.1564646727.git.viresh.kumar@linaro.org> (raw)
In-Reply-To: <cover.1564646727.git.viresh.kumar@linaro.org>
From: Julien Thierry <julien.thierry@arm.com>
Commit 5df7a99bdd0de4a0480320264c44c04543c29d5a upstream.
In vfp_preserve_user_clear_hwstate, ufp_exc->fpinst2 gets assigned to
itself. It should actually be hwstate->fpinst2 that gets assigned to the
ufp_exc field.
Fixes commit 3aa2df6ec2ca6bc143a65351cca4266d03a8bc41 ("ARM: 8791/1:
vfp: use __copy_to_user() when saving VFP state").
Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Julien Thierry <julien.thierry@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
arch/arm/vfp/vfpmodule.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c
index f07567eedd82..f9392fb060ea 100644
--- a/arch/arm/vfp/vfpmodule.c
+++ b/arch/arm/vfp/vfpmodule.c
@@ -583,7 +583,7 @@ int vfp_preserve_user_clear_hwstate(struct user_vfp *ufp,
*/
ufp_exc->fpexc = hwstate->fpexc;
ufp_exc->fpinst = hwstate->fpinst;
- ufp_exc->fpinst2 = ufp_exc->fpinst2;
+ ufp_exc->fpinst2 = hwstate->fpinst2;
/* Ensure that VFP is disabled. */
vfp_flush_hwstate(thread);
--
2.21.0.rc0.269.g1a574e7a288b
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2019-08-01 8:21 UTC|newest]
Thread overview: 100+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-01 8:15 [PATCH ARM32 v4.4 V2 00/47] V4.4 backport of arm32 Spectre patches Viresh Kumar
2019-08-01 8:15 ` Viresh Kumar
2019-08-01 8:15 ` [PATCH ARM32 v4.4 V2 01/47] ARM: 8478/2: arm/arm64: add arm-smccc Viresh Kumar
2019-08-01 8:15 ` Viresh Kumar
2019-08-01 8:15 ` [PATCH ARM32 v4.4 V2 02/47] arm/arm64: KVM: Advertise SMCCC v1.1 Viresh Kumar
2019-08-01 8:15 ` Viresh Kumar
2019-08-01 8:15 ` [PATCH ARM32 v4.4 V2 03/47] arm64: KVM: Report SMCCC_ARCH_WORKAROUND_1 BP hardening support Viresh Kumar
2019-08-01 8:15 ` Viresh Kumar
2019-08-01 8:15 ` [PATCH ARM32 v4.4 V2 04/47] drivers/firmware: Expose psci_get_version through psci_ops structure Viresh Kumar
2019-08-01 8:15 ` Viresh Kumar
2019-08-01 8:15 ` [PATCH ARM32 v4.4 V2 05/47] firmware/psci: Expose PSCI conduit Viresh Kumar
2019-08-01 8:15 ` Viresh Kumar
2019-08-01 8:15 ` [PATCH ARM32 v4.4 V2 06/47] firmware/psci: Expose SMCCC version through psci_ops Viresh Kumar
2019-08-01 8:15 ` Viresh Kumar
2019-08-01 8:15 ` [PATCH ARM32 v4.4 V2 07/47] arm/arm64: smccc: Make function identifiers an unsigned quantity Viresh Kumar
2019-08-01 8:15 ` Viresh Kumar
2019-08-01 8:15 ` [PATCH ARM32 v4.4 V2 08/47] arm/arm64: smccc: Implement SMCCC v1.1 inline primitive Viresh Kumar
2019-08-01 8:15 ` Viresh Kumar
2019-08-01 8:15 ` [PATCH ARM32 v4.4 V2 09/47] ARM: add more CPU part numbers for Cortex and Brahma B15 CPUs Viresh Kumar
2019-08-01 8:15 ` Viresh Kumar
2019-08-01 8:15 ` [PATCH ARM32 v4.4 V2 10/47] ARM: bugs: prepare processor bug infrastructure Viresh Kumar
2019-08-01 8:15 ` Viresh Kumar
2019-08-01 8:15 ` [PATCH ARM32 v4.4 V2 11/47] ARM: bugs: hook processor bug checking into SMP and suspend paths Viresh Kumar
2019-08-01 8:15 ` Viresh Kumar
2019-08-01 8:15 ` [PATCH ARM32 v4.4 V2 12/47] ARM: bugs: add support for per-processor bug checking Viresh Kumar
2019-08-01 8:15 ` Viresh Kumar
2019-08-01 8:15 ` [PATCH ARM32 v4.4 V2 13/47] ARM: spectre: add Kconfig symbol for CPUs vulnerable to Spectre Viresh Kumar
2019-08-01 8:15 ` Viresh Kumar
2019-08-01 8:15 ` [PATCH ARM32 v4.4 V2 14/47] ARM: spectre-v2: harden branch predictor on context switches Viresh Kumar
2019-08-01 8:15 ` Viresh Kumar
2019-08-01 8:15 ` [PATCH ARM32 v4.4 V2 15/47] ARM: spectre-v2: add Cortex A8 and A15 validation of the IBE bit Viresh Kumar
2019-08-01 8:15 ` Viresh Kumar
2019-08-01 8:16 ` [PATCH ARM32 v4.4 V2 16/47] ARM: spectre-v2: harden user aborts in kernel space Viresh Kumar
2019-08-01 8:16 ` Viresh Kumar
2019-08-01 8:16 ` [PATCH ARM32 v4.4 V2 17/47] ARM: spectre-v2: add firmware based hardening Viresh Kumar
2019-08-01 8:16 ` Viresh Kumar
2019-08-01 8:16 ` [PATCH ARM32 v4.4 V2 18/47] ARM: spectre-v2: warn about incorrect context switching functions Viresh Kumar
2019-08-01 8:16 ` Viresh Kumar
2019-08-01 8:16 ` [PATCH ARM32 v4.4 V2 19/47] ARM: spectre-v1: add speculation barrier (csdb) macros Viresh Kumar
2019-08-01 8:16 ` Viresh Kumar
2019-08-01 8:16 ` [PATCH ARM32 v4.4 V2 20/47] ARM: spectre-v1: add array_index_mask_nospec() implementation Viresh Kumar
2019-08-01 8:16 ` Viresh Kumar
2019-08-01 8:16 ` [PATCH ARM32 v4.4 V2 21/47] ARM: spectre-v1: fix syscall entry Viresh Kumar
2019-08-01 8:16 ` Viresh Kumar
2019-08-01 8:16 ` [PATCH ARM32 v4.4 V2 22/47] ARM: signal: copy registers using __copy_from_user() Viresh Kumar
2019-08-01 8:16 ` Viresh Kumar
2019-08-01 8:16 ` [PATCH ARM32 v4.4 V2 23/47] ARM: vfp: use __copy_from_user() when restoring VFP state Viresh Kumar
2019-08-01 8:16 ` Viresh Kumar
2019-08-01 8:16 ` [PATCH ARM32 v4.4 V2 24/47] ARM: oabi-compat: copy semops using __copy_from_user() Viresh Kumar
2019-08-01 8:16 ` Viresh Kumar
2019-08-01 8:16 ` [PATCH ARM32 v4.4 V2 25/47] ARM: use __inttype() in get_user() Viresh Kumar
2019-08-01 8:16 ` Viresh Kumar
2019-08-01 8:16 ` [PATCH ARM32 v4.4 V2 26/47] ARM: spectre-v1: use get_user() for __get_user() Viresh Kumar
2019-08-01 8:16 ` Viresh Kumar
2019-08-01 8:16 ` [PATCH ARM32 v4.4 V2 27/47] ARM: spectre-v1: mitigate user accesses Viresh Kumar
2019-08-01 8:16 ` Viresh Kumar
2019-08-01 8:16 ` [PATCH ARM32 v4.4 V2 28/47] ARM: 8789/1: signal: copy registers using __copy_to_user() Viresh Kumar
2019-08-01 8:16 ` Viresh Kumar
2019-08-01 8:16 ` [PATCH ARM32 v4.4 V2 29/47] ARM: 8791/1: vfp: use __copy_to_user() when saving VFP state Viresh Kumar
2019-08-01 8:16 ` Viresh Kumar
2019-08-01 8:16 ` [PATCH ARM32 v4.4 V2 30/47] ARM: 8792/1: oabi-compat: copy oabi events using __copy_to_user() Viresh Kumar
2019-08-01 8:16 ` Viresh Kumar
2019-08-01 8:16 ` [PATCH ARM32 v4.4 V2 31/47] ARM: 8793/1: signal: replace __put_user_error with __put_user Viresh Kumar
2019-08-01 8:16 ` Viresh Kumar
2019-08-01 8:16 ` [PATCH ARM32 v4.4 V2 32/47] ARM: 8794/1: uaccess: Prevent speculative use of the current addr_limit Viresh Kumar
2019-08-01 8:16 ` Viresh Kumar
2019-08-01 8:16 ` [PATCH ARM32 v4.4 V2 33/47] ARM: uaccess: remove put_user() code duplication Viresh Kumar
2019-08-01 8:16 ` Viresh Kumar
2019-08-01 8:16 ` [PATCH ARM32 v4.4 V2 34/47] ARM: 8795/1: spectre-v1.1: use put_user() for __put_user() Viresh Kumar
2019-08-01 8:16 ` Viresh Kumar
2019-08-01 8:16 ` [PATCH ARM32 v4.4 V2 35/47] ARM: 8796/1: spectre-v1,v1.1: provide helpers for address sanitization Viresh Kumar
2019-08-01 8:16 ` [PATCH ARM32 v4.4 V2 35/47] ARM: 8796/1: spectre-v1, v1.1: " Viresh Kumar
2019-08-01 8:16 ` [PATCH ARM32 v4.4 V2 36/47] ARM: 8797/1: spectre-v1.1: harden __copy_to_user Viresh Kumar
2019-08-01 8:16 ` Viresh Kumar
2019-08-01 8:16 ` [PATCH ARM32 v4.4 V2 37/47] ARM: 8809/1: proc-v7: fix Thumb annotation of cpu_v7_hvc_switch_mm Viresh Kumar
2019-08-01 8:16 ` Viresh Kumar
2019-08-01 8:16 ` Viresh Kumar [this message]
2019-08-01 8:16 ` [PATCH ARM32 v4.4 V2 38/47] ARM: 8810/1: vfp: Fix wrong assignement to ufp_exc Viresh Kumar
2019-08-01 8:16 ` [PATCH ARM32 v4.4 V2 39/47] ARM: make lookup_processor_type() non-__init Viresh Kumar
2019-08-01 8:16 ` Viresh Kumar
2019-08-01 8:16 ` [PATCH ARM32 v4.4 V2 40/47] ARM: split out processor lookup Viresh Kumar
2019-08-01 8:16 ` Viresh Kumar
2019-08-01 8:16 ` [PATCH ARM32 v4.4 V2 41/47] ARM: clean up per-processor check_bugs method call Viresh Kumar
2019-08-01 8:16 ` Viresh Kumar
2019-08-01 8:16 ` [PATCH ARM32 v4.4 V2 42/47] ARM: add PROC_VTABLE and PROC_TABLE macros Viresh Kumar
2019-08-01 8:16 ` Viresh Kumar
2019-08-01 8:16 ` [PATCH ARM32 v4.4 V2 43/47] arch: Introduce post-init read-only memory Viresh Kumar
2019-08-01 8:16 ` Viresh Kumar
2019-08-01 8:16 ` [PATCH ARM32 v4.4 V2 44/47] ARM: 8595/2: apply more __ro_after_init Viresh Kumar
2019-08-01 8:16 ` Viresh Kumar
2019-08-01 8:16 ` [PATCH ARM32 v4.4 V2 45/47] ARM: spectre-v2: per-CPU vtables to work around big.Little systems Viresh Kumar
2019-08-01 8:16 ` Viresh Kumar
2019-08-01 8:16 ` [PATCH ARM32 v4.4 V2 46/47] ARM: ensure that processor vtables is not lost after boot Viresh Kumar
2019-08-01 8:16 ` Viresh Kumar
2019-08-01 8:16 ` [PATCH ARM32 v4.4 V2 47/47] ARM: fix the cockup in the previous patch Viresh Kumar
2019-08-01 8:16 ` Viresh Kumar
2019-08-29 11:40 ` [PATCH ARM32 v4.4 V2 00/47] V4.4 backport of arm32 Spectre patches Viresh Kumar
2019-08-29 11:40 ` Viresh Kumar
2019-10-11 6:35 ` Viresh Kumar
2019-10-11 6:35 ` Viresh Kumar
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=17ef1620483a77f70c7c27e64cba3ad1684626c7.1564646727.git.viresh.kumar@linaro.org \
--to=viresh.kumar@linaro.org \
--cc=Julien.Thierry@arm.com \
--cc=catalin.marinas@arm.com \
--cc=guohanjun@huawei.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=marc.zyngier@arm.com \
--cc=mark.brown@arm.com \
--cc=mark.rutland@arm.com \
--cc=rmk+kernel@arm.linux.org.uk \
--cc=stable@vger.kernel.org \
--cc=vincent.guittot@linaro.org \
--cc=will.deacon@arm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.