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m68k updates for v6.1

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- Fix forward secrecy of RNG seed boot record handling,
   - Make RNG seed boot record handling generic for all m68k platforms
     using bootinfo,
   - Defconfig updates,
   - Minor fixes and improvements.
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Merge tag 'm68k-for-v6.1-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k

Pull m68k updates from Geert Uytterhoeven:

 - Fix forward secrecy of RNG seed boot record handling

 - Make RNG seed boot record handling generic for all m68k platforms
   using bootinfo

 - defconfig updates

 - Minor fixes and improvements

* tag 'm68k-for-v6.1-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: Rework BI_VIRT_RNG_SEED as BI_RNG_SEED
  m68k: Process bootinfo records before saving them
  m68k: defconfig: Update defconfigs for v6.0-rc2
  m68k: Allow kexec on M68KCLASSIC with MMU enabled only
  m68k: Move from strlcpy with unused retval to strscpy
This commit is contained in:
Linus Torvalds 2022-10-03 09:48:47 -07:00
commit 75003fa726
17 changed files with 50 additions and 46 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/m68k/Kconfig
View File

@ -87,7 +87,7 @@ config MMU_SUN3
config KEXEC
bool "kexec system call"
depends on M68KCLASSIC
depends on M68KCLASSIC && MMU
select KEXEC_CORE
help
kexec is a system call that implements the ability to shutdown your

4
arch/m68k/configs/amiga_defconfig
View File

@ -84,7 +84,6 @@ CONFIG_NETFILTER=y
CONFIG_NETFILTER_NETLINK_HOOK=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CONNTRACK_ZONES=y
# CONFIG_NF_CONNTRACK_PROCFS is not set
# CONFIG_NF_CT_PROTO_DCCP is not set
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
@ -573,9 +572,9 @@ CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_XTS=m
CONFIG_CRYPTO_KEYWRAP=m
CONFIG_CRYPTO_ADIANTUM=m
CONFIG_CRYPTO_HCTR2=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
CONFIG_CRYPTO_BLAKE2S=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
@ -594,6 +593,7 @@ CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_ARIA=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_SM4_GENERIC=m
CONFIG_CRYPTO_TEA=m

4
arch/m68k/configs/apollo_defconfig
View File

@ -80,7 +80,6 @@ CONFIG_NETFILTER=y
CONFIG_NETFILTER_NETLINK_HOOK=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CONNTRACK_ZONES=y
# CONFIG_NF_CONNTRACK_PROCFS is not set
# CONFIG_NF_CT_PROTO_DCCP is not set
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
@ -530,9 +529,9 @@ CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_XTS=m
CONFIG_CRYPTO_KEYWRAP=m
CONFIG_CRYPTO_ADIANTUM=m
CONFIG_CRYPTO_HCTR2=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
CONFIG_CRYPTO_BLAKE2S=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
@ -551,6 +550,7 @@ CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_ARIA=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_SM4_GENERIC=m
CONFIG_CRYPTO_TEA=m

4
arch/m68k/configs/atari_defconfig
View File

@ -87,7 +87,6 @@ CONFIG_NETFILTER=y
CONFIG_NETFILTER_NETLINK_HOOK=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CONNTRACK_ZONES=y
# CONFIG_NF_CONNTRACK_PROCFS is not set
# CONFIG_NF_CT_PROTO_DCCP is not set
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
@ -550,9 +549,9 @@ CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_XTS=m
CONFIG_CRYPTO_KEYWRAP=m
CONFIG_CRYPTO_ADIANTUM=m
CONFIG_CRYPTO_HCTR2=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
CONFIG_CRYPTO_BLAKE2S=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
@ -571,6 +570,7 @@ CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_ARIA=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_SM4_GENERIC=m
CONFIG_CRYPTO_TEA=m

4
arch/m68k/configs/bvme6000_defconfig
View File

@ -77,7 +77,6 @@ CONFIG_NETFILTER=y
CONFIG_NETFILTER_NETLINK_HOOK=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CONNTRACK_ZONES=y
# CONFIG_NF_CONNTRACK_PROCFS is not set
# CONFIG_NF_CT_PROTO_DCCP is not set
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
@ -522,9 +521,9 @@ CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_XTS=m
CONFIG_CRYPTO_KEYWRAP=m
CONFIG_CRYPTO_ADIANTUM=m
CONFIG_CRYPTO_HCTR2=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
CONFIG_CRYPTO_BLAKE2S=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
@ -543,6 +542,7 @@ CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_ARIA=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_SM4_GENERIC=m
CONFIG_CRYPTO_TEA=m

4
arch/m68k/configs/hp300_defconfig
View File

@ -79,7 +79,6 @@ CONFIG_NETFILTER=y
CONFIG_NETFILTER_NETLINK_HOOK=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CONNTRACK_ZONES=y
# CONFIG_NF_CONNTRACK_PROCFS is not set
# CONFIG_NF_CT_PROTO_DCCP is not set
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
@ -532,9 +531,9 @@ CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_XTS=m
CONFIG_CRYPTO_KEYWRAP=m
CONFIG_CRYPTO_ADIANTUM=m
CONFIG_CRYPTO_HCTR2=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
CONFIG_CRYPTO_BLAKE2S=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
@ -553,6 +552,7 @@ CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_ARIA=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_SM4_GENERIC=m
CONFIG_CRYPTO_TEA=m

4
arch/m68k/configs/mac_defconfig
View File

@ -78,7 +78,6 @@ CONFIG_NETFILTER=y
CONFIG_NETFILTER_NETLINK_HOOK=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CONNTRACK_ZONES=y
# CONFIG_NF_CONNTRACK_PROCFS is not set
# CONFIG_NF_CT_PROTO_DCCP is not set
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
@ -552,9 +551,9 @@ CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_XTS=m
CONFIG_CRYPTO_KEYWRAP=m
CONFIG_CRYPTO_ADIANTUM=m
CONFIG_CRYPTO_HCTR2=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
CONFIG_CRYPTO_BLAKE2S=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
@ -573,6 +572,7 @@ CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_ARIA=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_SM4_GENERIC=m
CONFIG_CRYPTO_TEA=m

4
arch/m68k/configs/multi_defconfig
View File

@ -98,7 +98,6 @@ CONFIG_NETFILTER=y
CONFIG_NETFILTER_NETLINK_HOOK=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CONNTRACK_ZONES=y
# CONFIG_NF_CONNTRACK_PROCFS is not set
# CONFIG_NF_CT_PROTO_DCCP is not set
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
@ -638,9 +637,9 @@ CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_XTS=m
CONFIG_CRYPTO_KEYWRAP=m
CONFIG_CRYPTO_ADIANTUM=m
CONFIG_CRYPTO_HCTR2=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
CONFIG_CRYPTO_BLAKE2S=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
@ -659,6 +658,7 @@ CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_ARIA=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_SM4_GENERIC=m
CONFIG_CRYPTO_TEA=m

4
arch/m68k/configs/mvme147_defconfig
View File

@ -76,7 +76,6 @@ CONFIG_NETFILTER=y
CONFIG_NETFILTER_NETLINK_HOOK=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CONNTRACK_ZONES=y
# CONFIG_NF_CONNTRACK_PROCFS is not set
# CONFIG_NF_CT_PROTO_DCCP is not set
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
@ -521,9 +520,9 @@ CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_XTS=m
CONFIG_CRYPTO_KEYWRAP=m
CONFIG_CRYPTO_ADIANTUM=m
CONFIG_CRYPTO_HCTR2=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
CONFIG_CRYPTO_BLAKE2S=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
@ -542,6 +541,7 @@ CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_ARIA=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_SM4_GENERIC=m
CONFIG_CRYPTO_TEA=m

4
arch/m68k/configs/mvme16x_defconfig
View File

@ -77,7 +77,6 @@ CONFIG_NETFILTER=y
CONFIG_NETFILTER_NETLINK_HOOK=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CONNTRACK_ZONES=y
# CONFIG_NF_CONNTRACK_PROCFS is not set
# CONFIG_NF_CT_PROTO_DCCP is not set
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
@ -522,9 +521,9 @@ CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_XTS=m
CONFIG_CRYPTO_KEYWRAP=m
CONFIG_CRYPTO_ADIANTUM=m
CONFIG_CRYPTO_HCTR2=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
CONFIG_CRYPTO_BLAKE2S=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
@ -543,6 +542,7 @@ CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_ARIA=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_SM4_GENERIC=m
CONFIG_CRYPTO_TEA=m

4
arch/m68k/configs/q40_defconfig
View File

@ -78,7 +78,6 @@ CONFIG_NETFILTER=y
CONFIG_NETFILTER_NETLINK_HOOK=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CONNTRACK_ZONES=y
# CONFIG_NF_CONNTRACK_PROCFS is not set
# CONFIG_NF_CT_PROTO_DCCP is not set
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
@ -539,9 +538,9 @@ CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_XTS=m
CONFIG_CRYPTO_KEYWRAP=m
CONFIG_CRYPTO_ADIANTUM=m
CONFIG_CRYPTO_HCTR2=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
CONFIG_CRYPTO_BLAKE2S=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
@ -560,6 +559,7 @@ CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_ARIA=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_SM4_GENERIC=m
CONFIG_CRYPTO_TEA=m

4
arch/m68k/configs/sun3_defconfig
View File

@ -74,7 +74,6 @@ CONFIG_NETFILTER=y
CONFIG_NETFILTER_NETLINK_HOOK=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CONNTRACK_ZONES=y
# CONFIG_NF_CONNTRACK_PROCFS is not set
# CONFIG_NF_CT_PROTO_DCCP is not set
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
@ -521,9 +520,9 @@ CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_XTS=m
CONFIG_CRYPTO_KEYWRAP=m
CONFIG_CRYPTO_ADIANTUM=m
CONFIG_CRYPTO_HCTR2=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
CONFIG_CRYPTO_BLAKE2S=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
@ -542,6 +541,7 @@ CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_ARIA=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_SM4_GENERIC=m
CONFIG_CRYPTO_TEA=m

4
arch/m68k/configs/sun3x_defconfig
View File

@ -74,7 +74,6 @@ CONFIG_NETFILTER=y
CONFIG_NETFILTER_NETLINK_HOOK=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CONNTRACK_ZONES=y
# CONFIG_NF_CONNTRACK_PROCFS is not set
# CONFIG_NF_CT_PROTO_DCCP is not set
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
@ -520,9 +519,9 @@ CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_XTS=m
CONFIG_CRYPTO_KEYWRAP=m
CONFIG_CRYPTO_ADIANTUM=m
CONFIG_CRYPTO_HCTR2=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
CONFIG_CRYPTO_BLAKE2S=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
@ -541,6 +540,7 @@ CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_ARIA=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_SM4_GENERIC=m
CONFIG_CRYPTO_TEA=m

9
arch/m68k/include/uapi/asm/bootinfo-virt.h
View File

@ -13,13 +13,8 @@
#define BI_VIRT_VIRTIO_BASE 0x8004
#define BI_VIRT_CTRL_BASE 0x8005
/*
* A random seed used to initialize the RNG. Record format:
*
* - length [ 2 bytes, 16-bit big endian ]
* - seed data [ `length` bytes, padded to preserve 2-byte alignment ]
*/
#define BI_VIRT_RNG_SEED 0x8006
/* No longer used -- replaced with BI_RNG_SEED -- but don't reuse this index:
* #define BI_VIRT_RNG_SEED 0x8006 */
#define VIRT_BOOTI_VERSION MK_BI_VERSION(2, 0)

7
arch/m68k/include/uapi/asm/bootinfo.h
View File

@ -64,6 +64,13 @@ struct mem_info {
/* (struct mem_info) */
#define BI_COMMAND_LINE 0x0007 /* kernel command line parameters */
/* (string) */
/*
* A random seed used to initialize the RNG. Record format:
*
* - length [ 2 bytes, 16-bit big endian ]
* - seed data [ `length` bytes, padded to preserve 4-byte struct alignment ]
*/
#define BI_RNG_SEED 0x0008
/*

19
arch/m68k/kernel/setup_mm.c
View File

@ -25,6 +25,7 @@
#include <linux/module.h>
#include <linux/nvram.h>
#include <linux/initrd.h>
#include <linux/random.h>
#include <asm/bootinfo.h>
#include <asm/byteorder.h>
@ -109,10 +110,9 @@ extern void paging_init(void);
static void __init m68k_parse_bootinfo(const struct bi_record *record)
{
const struct bi_record *first_record = record;
uint16_t tag;
save_bootinfo(record);
while ((tag = be16_to_cpu(record->tag)) != BI_LAST) {
int unknown = 0;
const void *data = record->data;
@ -148,10 +148,21 @@ static void __init m68k_parse_bootinfo(const struct bi_record *record)
break;
case BI_COMMAND_LINE:
strlcpy(m68k_command_line, data,
strscpy(m68k_command_line, data,
sizeof(m68k_command_line));
break;
case BI_RNG_SEED: {
u16 len = be16_to_cpup(data);
add_bootloader_randomness(data + 2, len);
/*
* Zero the data to preserve forward secrecy, and zero the
* length to prevent kexec from using it.
*/
memzero_explicit((void *)data, len + 2);
break;
}
default:
if (MACH_IS_AMIGA)
unknown = amiga_parse_bootinfo(record);
@ -182,6 +193,8 @@ static void __init m68k_parse_bootinfo(const struct bi_record *record)
record = (struct bi_record *)((unsigned long)record + size);
}
save_bootinfo(first_record);
m68k_realnum_memory = m68k_num_memory;
#ifdef CONFIG_SINGLE_MEMORY_CHUNK
if (m68k_num_memory > 1) {

11
arch/m68k/virt/config.c
View File

@ -2,7 +2,6 @@
#include <linux/reboot.h>
#include <linux/serial_core.h>
#include <linux/random.h>
#include <clocksource/timer-goldfish.h>
#include <asm/bootinfo.h>
@ -93,16 +92,6 @@ int __init virt_parse_bootinfo(const struct bi_record *record)
data += 4;
virt_bi_data.virtio.irq = be32_to_cpup(data);
break;
case BI_VIRT_RNG_SEED: {
u16 len = be16_to_cpup(data);
add_bootloader_randomness(data + 2, len);
/*
* Zero the data to preserve forward secrecy, and zero the
* length to prevent kexec from using it.
*/
memzero_explicit((void *)data, len + 2);
break;
}
default:
unknown = 1;
break;