From: Rolf Eike Beer <eb@emlix.com>
To: guoren@kernel.org, palmer@dabbelt.com, arnd@arndb.de,
anup@brainfault.org, gregkh@linuxfoundation.org,
liush@allwinnertech.com, wefu@redhat.com, drew@beagleboard.org,
wangjunqiang@iscas.ac.cn, hch@lst.de, guoren@kernel.org
Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-riscv@lists.infradead.org, linux-csky@vger.kernel.org,
linux-s390@vger.kernel.org, sparclinux@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org, linux-parisc@vger.kernel.org,
linux-mips@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
x86@kernel.org, Guo Ren <guoren@linux.alibaba.com>
Subject: Re: [PATCH V5 17/21] riscv: compat: vdso: Add setup additional pages implementation
Date: Wed, 23 Feb 2022 13:12:03 +0100 [thread overview]
Message-ID: <4379941.LvFx2qVVIh@eto.sf-tec.de> (raw)
In-Reply-To: <20220201150545.1512822-18-guoren@kernel.org>
[-- Attachment #1: Type: text/plain, Size: 916 bytes --]
> @@ -66,35 +68,35 @@ static int vdso_mremap(const struct vm_special_mapping
> *sm, return 0;
> }
>
> -static int __init __vdso_init(void)
> +static int __init __vdso_init(struct __vdso_info *vdso_info)
> {
> unsigned int i;
> struct page **vdso_pagelist;
> unsigned long pfn;
>
> - if (memcmp(vdso_info.vdso_code_start, "\177ELF", 4)) {
> + if (memcmp(vdso_info->vdso_code_start, "\177ELF", 4)) {
> pr_err("vDSO is not a valid ELF object!\n");
> return -EINVAL;
> }
>
Does anyone actually guarantee that this is at least this 4 bytes long?
Eike
--
Rolf Eike Beer, emlix GmbH, https://www.emlix.com
Fon +49 551 30664-0, Fax +49 551 30664-11
Gothaer Platz 3, 37083 Göttingen, Germany
Sitz der Gesellschaft: Göttingen, Amtsgericht Göttingen HR B 3160
Geschäftsführung: Heike Jordan, Dr. Uwe Kracke – Ust-IdNr.: DE 205 198 055
emlix - smart embedded open source
[-- Attachment #2: This is a digitally signed message part. --]
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next prev parent reply other threads:[~2022-02-23 12:39 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-01 15:05 [PATCH V5 00/21] riscv: compat: Add COMPAT mode support for rv64 guoren
2022-02-01 15:05 ` [PATCH V5 01/21] uapi: simplify __ARCH_FLOCK{,64}_PAD a little guoren
2022-02-01 15:05 ` [PATCH V5 02/21] uapi: always define F_GETLK64/F_SETLK64/F_SETLKW64 in fcntl.h guoren
2022-02-01 15:05 ` [PATCH V5 03/21] compat: consolidate the compat_flock{,64} definition guoren
2022-02-01 15:05 ` [PATCH V5 04/21] kconfig: Add SYSVIPC_COMPAT for all architectures guoren
2022-02-01 15:05 ` [PATCH V5 05/21] fs: stat: compat: Add __ARCH_WANT_COMPAT_STAT guoren
2022-02-01 15:05 ` [PATCH V5 06/21] asm-generic: compat: Cleanup duplicate definitions guoren
2022-02-02 7:48 ` Christoph Hellwig
2022-02-01 15:05 ` [PATCH V5 07/21] syscalls: compat: Fix the missing part for __SYSCALL_COMPAT guoren
2022-02-01 15:05 ` [PATCH V5 08/21] riscv: Fixup difference with defconfig guoren
2022-02-01 15:05 ` [PATCH V5 09/21] riscv: compat: Add basic compat data type implementation guoren
2022-02-23 1:42 ` Palmer Dabbelt
2022-02-23 8:54 ` Guo Ren
2022-02-01 15:05 ` [PATCH V5 10/21] riscv: compat: Re-implement TASK_SIZE for COMPAT_32BIT guoren
2022-02-01 15:05 ` [PATCH V5 11/21] riscv: compat: syscall: Add compat_sys_call_table implementation guoren
2022-02-01 15:05 ` [PATCH V5 12/21] riscv: compat: syscall: Add entry.S implementation guoren
2022-02-23 1:42 ` Palmer Dabbelt
2022-02-01 15:05 ` [PATCH V5 13/21] riscv: compat: process: Add UXL_32 support in start_thread guoren
2022-02-23 1:42 ` Palmer Dabbelt
2022-02-23 9:21 ` Guo Ren
2022-02-01 15:05 ` [PATCH V5 14/21] riscv: compat: Add elf.h implementation guoren
2022-02-01 15:05 ` [PATCH V5 15/21] riscv: compat: Add hw capability check for elf guoren
2022-02-02 2:02 ` Guo Ren
2022-02-02 7:51 ` Christoph Hellwig
2022-02-03 2:44 ` Guo Ren
2022-02-01 15:05 ` [PATCH V5 16/21] riscv: compat: vdso: Add rv32 VDSO base code implementation guoren
2022-02-23 1:42 ` Palmer Dabbelt
2022-02-23 9:55 ` Guo Ren
2022-02-01 15:05 ` [PATCH V5 17/21] riscv: compat: vdso: Add setup additional pages implementation guoren
2022-02-23 1:42 ` Palmer Dabbelt
2022-02-23 11:49 ` Guo Ren
2022-02-24 1:36 ` Guo Ren
2022-02-23 12:12 ` Rolf Eike Beer [this message]
2022-02-23 12:42 ` Guo Ren
2022-02-01 15:05 ` [PATCH V5 18/21] riscv: compat: signal: Add rt_frame implementation guoren
2022-02-23 1:42 ` Palmer Dabbelt
2022-02-01 15:05 ` [PATCH V5 19/21] riscv: compat: ptrace: Add compat_arch_ptrace implement guoren
2022-02-23 1:42 ` Palmer Dabbelt
2022-02-01 15:05 ` [PATCH V5 20/21] riscv: compat: Add COMPAT Kbuild skeletal support guoren
2022-02-01 15:05 ` [PATCH V5 21/21] KVM: compat: riscv: Prevent KVM_COMPAT from being selected guoren
2022-02-01 15:44 ` Anup Patel
2022-02-01 16:00 ` Paolo Bonzini
2022-02-01 16:11 ` Anup Patel
2022-02-01 16:16 ` Guo Ren
2022-02-23 1:42 ` Palmer Dabbelt
2022-02-08 7:43 ` [PATCH V5 00/21] riscv: compat: Add COMPAT mode support for rv64 Guo Ren
2022-02-23 1:43 ` Palmer Dabbelt
2022-02-23 10:59 ` Arnd Bergmann
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