Re: [PATCH v3 11/16] arm64: __show_regs: strip PAC from lr in printk

[PATCH v3 00/16] arm64: return address signing · Amit Daniel Kachhap <hidden> · 2019-12-16
[PATCH v3 01/16] arm64: cpufeature: add pointer auth meta-capabilities · Amit Daniel Kachhap <hidden> · 2019-12-16
Re: [PATCH v3 01/16] arm64: cpufeature: add pointer auth meta-capabilities · Catalin Marinas <Catalin.Marinas@arm.com> · 2020-01-15
Re: [PATCH v3 01/16] arm64: cpufeature: add pointer auth meta-capabilities · Suzuki Kuruppassery Poulose <suzuki.poulose@arm.com> · 2020-01-15
Re: [PATCH v3 01/16] arm64: cpufeature: add pointer auth meta-capabilities · Catalin Marinas <catalin.marinas@arm.com> · 2020-01-15
Re: [PATCH v3 01/16] arm64: cpufeature: add pointer auth meta-capabilities · Amit Kachhap <hidden> · 2020-01-16
[PATCH v3 02/16] arm64: rename ptrauth key structures to be user-specific · Amit Daniel Kachhap <hidden> · 2019-12-16
Re: [PATCH v3 02/16] arm64: rename ptrauth key structures to be user-specific · Catalin Marinas <catalin.marinas@arm.com> · 2020-01-15
[PATCH v3 03/16] arm64: install user ptrauth keys at kernel exit time · Amit Daniel Kachhap <hidden> · 2019-12-16
Re: [PATCH v3 03/16] arm64: install user ptrauth keys at kernel exit time · Catalin Marinas <catalin.marinas@arm.com> · 2020-01-15
Re: [PATCH v3 03/16] arm64: install user ptrauth keys at kernel exit time · Amit Kachhap <hidden> · 2020-01-16
[PATCH v3 04/16] arm64: create macro to park cpu in an infinite loop · Amit Daniel Kachhap <hidden> · 2019-12-16
Re: [PATCH v3 04/16] arm64: create macro to park cpu in an infinite loop · Suzuki Kuruppassery Poulose <suzuki.poulose@arm.com> · 2020-01-07
Re: [PATCH v3 04/16] arm64: create macro to park cpu in an infinite loop · Catalin Marinas <catalin.marinas@arm.com> · 2020-01-15
[PATCH v3 05/16] arm64: ptrauth: Add bootup/runtime flags for __cpu_setup · Amit Daniel Kachhap <hidden> · 2019-12-16
Re: [PATCH v3 05/16] arm64: ptrauth: Add bootup/runtime flags for __cpu_setup · Suzuki Kuruppassery Poulose <suzuki.poulose@arm.com> · 2020-01-07
Re: [PATCH v3 05/16] arm64: ptrauth: Add bootup/runtime flags for __cpu_setup · Amit Kachhap <hidden> · 2020-01-09
Re: [PATCH v3 05/16] arm64: ptrauth: Add bootup/runtime flags for __cpu_setup · Catalin Marinas <catalin.marinas@arm.com> · 2020-01-15
Re: [PATCH v3 05/16] arm64: ptrauth: Add bootup/runtime flags for __cpu_setup · Amit Kachhap <hidden> · 2020-01-16
[PATCH v3 06/16] arm64: enable ptrauth earlier · Amit Daniel Kachhap <hidden> · 2019-12-16
Re: [PATCH v3 06/16] arm64: enable ptrauth earlier · Suzuki Kuruppassery Poulose <suzuki.poulose@arm.com> · 2020-01-07
Re: [PATCH v3 06/16] arm64: enable ptrauth earlier · Amit Kachhap <hidden> · 2020-01-09
Re: [PATCH v3 06/16] arm64: enable ptrauth earlier · Suzuki Kuruppassery Poulose <suzuki.poulose@arm.com> · 2020-01-10
Re: [PATCH v3 06/16] arm64: enable ptrauth earlier · Catalin Marinas <catalin.marinas@arm.com> · 2020-01-16
Re: [PATCH v3 06/16] arm64: enable ptrauth earlier · Amit Kachhap <hidden> · 2020-01-17
Re: [PATCH v3 06/16] arm64: enable ptrauth earlier · Catalin Marinas <catalin.marinas@arm.com> · 2020-01-17
Re: [PATCH v3 06/16] arm64: enable ptrauth earlier · Amit Kachhap <hidden> · 2020-01-20
[PATCH v3 07/16] arm64: initialize and switch ptrauth kernel keys · Amit Daniel Kachhap <hidden> · 2019-12-16
Re: [PATCH v3 07/16] arm64: initialize and switch ptrauth kernel keys · Catalin Marinas <catalin.marinas@arm.com> · 2020-01-16
[PATCH v3 08/16] arm64: initialize ptrauth keys for kernel booting task · Amit Daniel Kachhap <hidden> · 2019-12-16
Re: [PATCH v3 08/16] arm64: initialize ptrauth keys for kernel booting task · Catalin Marinas <catalin.marinas@arm.com> · 2020-01-16
Re: [PATCH v3 08/16] arm64: initialize ptrauth keys for kernel booting task · Amit Kachhap <hidden> · 2020-01-20
[PATCH v3 09/16] arm64: mask PAC bits of __builtin_return_address · Amit Daniel Kachhap <hidden> · 2019-12-16
Re: [PATCH v3 09/16] arm64: mask PAC bits of __builtin_return_address · Catalin Marinas <catalin.marinas@arm.com> · 2020-01-17
Re: [PATCH v3 09/16] arm64: mask PAC bits of __builtin_return_address · Amit Kachhap <hidden> · 2020-01-20
Re: [PATCH v3 09/16] arm64: mask PAC bits of __builtin_return_address · Catalin Marinas <catalin.marinas@arm.com> · 2020-01-21
[PATCH v3 10/16] arm64: unwind: strip PAC from kernel addresses · Amit Daniel Kachhap <hidden> · 2019-12-16
Re: [PATCH v3 10/16] arm64: unwind: strip PAC from kernel addresses · Catalin Marinas <catalin.marinas@arm.com> · 2020-01-17
[PATCH v3 11/16] arm64: __show_regs: strip PAC from lr in printk · Amit Daniel Kachhap <hidden> · 2019-12-16
Re: [PATCH v3 11/16] arm64: __show_regs: strip PAC from lr in printk · Catalin Marinas <catalin.marinas@arm.com> · 2020-01-17
[PATCH v3 12/16] arm64: suspend: restore the kernel ptrauth keys · Amit Daniel Kachhap <hidden> · 2019-12-16
Re: [PATCH v3 12/16] arm64: suspend: restore the kernel ptrauth keys · Catalin Marinas <catalin.marinas@arm.com> · 2020-01-17
[PATCH v3 13/16] arm64: kprobe: disable probe of ptrauth instruction · Amit Daniel Kachhap <hidden> · 2019-12-16
Re: [PATCH v3 13/16] arm64: kprobe: disable probe of ptrauth instruction · Catalin Marinas <catalin.marinas@arm.com> · 2020-01-17
Re: [PATCH v3 13/16] arm64: kprobe: disable probe of ptrauth instruction · Amit Kachhap <hidden> · 2020-01-20
[PATCH v3 14/16] kconfig: Add support for 'as-option' · Amit Daniel Kachhap <hidden> · 2019-12-16
Re: [PATCH v3 14/16] kconfig: Add support for 'as-option' · Masahiro Yamada <masahiroy@kernel.org> · 2019-12-17
Re: [PATCH v3 14/16] kconfig: Add support for 'as-option' · Catalin Marinas <catalin.marinas@arm.com> · 2020-01-17
Re: [PATCH v3 14/16] kconfig: Add support for 'as-option' · Masahiro Yamada <masahiroy@kernel.org> · 2020-01-17
Re: [PATCH v3 14/16] kconfig: Add support for 'as-option' · Vincenzo Frascino <vincenzo.frascino@arm.com> · 2020-01-20
[PATCH v3 15/16] arm64: compile the kernel with ptrauth return address signing · Amit Daniel Kachhap <hidden> · 2019-12-16
Re: [PATCH v3 15/16] arm64: compile the kernel with ptrauth return address signing · Catalin Marinas <catalin.marinas@arm.com> · 2020-01-17
Re: [PATCH v3 15/16] arm64: compile the kernel with ptrauth return address signing · Amit Kachhap <hidden> · 2020-01-21
Re: [PATCH v3 15/16] arm64: compile the kernel with ptrauth return address signing · Vincenzo Frascino <vincenzo.frascino@arm.com> · 2020-01-21
Re: [PATCH v3 15/16] arm64: compile the kernel with ptrauth return address signing · Catalin Marinas <catalin.marinas@arm.com> · 2020-01-21
[PATCH v3 16/16] lkdtm: arm64: test kernel pointer authentication · Amit Daniel Kachhap <hidden> · 2019-12-16
Re: [PATCH v3 16/16] lkdtm: arm64: test kernel pointer authentication · Catalin Marinas <catalin.marinas@arm.com> · 2020-01-17
[RESEND PATCH v3 00/16] arm64: return address signing · Amit Daniel Kachhap <hidden> · 2019-12-16
Re: [PATCH v3 00/16] arm64: return address signing · Kees Cook <hidden> · 2019-12-30
Re: [PATCH v3 00/16] arm64: return address signing · Amit Kachhap <hidden> · 2020-01-07

From: Catalin Marinas <catalin.marinas@arm.com>
Date: 2020-01-17 10:25:24

On Mon, Dec 16, 2019 at 02:17:13PM +0530, Amit Daniel Kachhap wrote:

lr is printed with %pS which will try to find an entry in kallsyms.
After enabling pointer authentication, this match will fail due to
PAC present in the lr.

Strip PAC from the lr to display the correct symbol name.

Suggested-by: James Morse <james.morse@arm.com>
Signed-off-by: Amit Daniel Kachhap <redacted>

Acked-by: Catalin Marinas <catalin.marinas@arm.com>

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