diff options
Diffstat (limited to 'SOURCES/patch-5.17-redhat.patch')
| -rw-r--r-- | SOURCES/patch-5.17-redhat.patch | 368 |
1 files changed, 357 insertions, 11 deletions
diff --git a/SOURCES/patch-5.17-redhat.patch b/SOURCES/patch-5.17-redhat.patch index 4354dca..4000bd1 100644 --- a/SOURCES/patch-5.17-redhat.patch +++ b/SOURCES/patch-5.17-redhat.patch @@ -7,6 +7,8 @@ arch/s390/include/asm/ipl.h | 1 + arch/s390/kernel/ipl.c | 5 + arch/s390/kernel/setup.c | 4 + + arch/x86/boot/header.S | 4 + + arch/x86/include/asm/efi.h | 5 + arch/x86/kernel/setup.c | 22 ++-- crypto/rng.c | 73 +++++++++++- drivers/acpi/apei/hest.c | 8 ++ @@ -16,8 +18,11 @@ drivers/char/ipmi/ipmi_dmi.c | 15 +++ drivers/char/ipmi/ipmi_msghandler.c | 16 ++- drivers/char/random.c | 115 +++++++++++++++++++ + drivers/firmware/efi/Kconfig | 12 ++ drivers/firmware/efi/Makefile | 1 + drivers/firmware/efi/efi.c | 124 +++++++++++++++------ + drivers/firmware/efi/libstub/efistub.h | 74 ++++++++++++ + drivers/firmware/efi/libstub/x86-stub.c | 119 +++++++++++++++++++- drivers/firmware/efi/secureboot.c | 38 +++++++ drivers/gpu/drm/i915/display/intel_bios.c | 6 + drivers/gpu/drm/i915/display/intel_psr.c | 9 ++ @@ -35,7 +40,7 @@ fs/nfs/client.c | 3 +- fs/nfs/fs_context.c | 8 ++ include/linux/dma-mapping.h | 8 ++ - include/linux/efi.h | 22 ++-- + include/linux/efi.h | 24 ++-- include/linux/lsm_hook_defs.h | 2 + include/linux/lsm_hooks.h | 6 + include/linux/module.h | 1 + @@ -54,7 +59,7 @@ security/lockdown/Kconfig | 13 +++ security/lockdown/lockdown.c | 1 + security/security.c | 6 + - 56 files changed, 769 insertions(+), 207 deletions(-) + 61 files changed, 980 insertions(+), 212 deletions(-) diff --git a/Documentation/core-api/dma-attributes.rst b/Documentation/core-api/dma-attributes.rst index 1887d92e8e92..17706dc91ec9 100644 @@ -106,7 +111,7 @@ index 000000000000..733a26bd887a + +endmenu diff --git a/Makefile b/Makefile -index 7ef8dd5ab6f2..330889bd62b2 100644 +index ce65b393a2b4..c7526eac960f 100644 --- a/Makefile +++ b/Makefile @@ -18,6 +18,10 @@ $(if $(filter __%, $(MAKECMDGOALS)), \ @@ -219,6 +224,38 @@ index 05327be3a982..c473e5ca67f1 100644 /* Have one command line that is parsed and saved in /proc/cmdline */ /* boot_command_line has been already set up in early.c */ *cmdline_p = boot_command_line; +diff --git a/arch/x86/boot/header.S b/arch/x86/boot/header.S +index 6dbd7e9f74c9..0352e4589efa 100644 +--- a/arch/x86/boot/header.S ++++ b/arch/x86/boot/header.S +@@ -163,7 +163,11 @@ extra_header_fields: + .long 0x200 # SizeOfHeaders + .long 0 # CheckSum + .word IMAGE_SUBSYSTEM_EFI_APPLICATION # Subsystem (EFI application) ++#ifdef CONFIG_DXE_MEM_ATTRIBUTES ++ .word IMAGE_DLL_CHARACTERISTICS_NX_COMPAT # DllCharacteristics ++#else + .word 0 # DllCharacteristics ++#endif + #ifdef CONFIG_X86_32 + .long 0 # SizeOfStackReserve + .long 0 # SizeOfStackCommit +diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h +index 03cb12775043..4614d54383ac 100644 +--- a/arch/x86/include/asm/efi.h ++++ b/arch/x86/include/asm/efi.h +@@ -352,6 +352,11 @@ static inline u32 efi64_convert_status(efi_status_t status) + runtime), \ + func, __VA_ARGS__)) + ++#define efi_dxe_call(func, ...) \ ++ (efi_is_native() \ ++ ? efi_dxe_table->func(__VA_ARGS__) \ ++ : __efi64_thunk_map(efi_dxe_table, func, __VA_ARGS__)) ++ + #else /* CONFIG_EFI_MIXED */ + + static inline bool efi_is_64bit(void) diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 90d7e1788c91..262198c48162 100644 --- a/arch/x86/kernel/setup.c @@ -501,7 +538,7 @@ index bbf7029e224b..cf7faa970dd6 100644 dmi_decode_ipmi((const struct dmi_header *) dev->device_data); diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c -index c59265146e9c..caa8458edde2 100644 +index f1827257ef0e..5a45c2cd3dc2 100644 --- a/drivers/char/ipmi/ipmi_msghandler.c +++ b/drivers/char/ipmi/ipmi_msghandler.c @@ -35,6 +35,7 @@ @@ -512,7 +549,7 @@ index c59265146e9c..caa8458edde2 100644 #include <linux/delay.h> #define IPMI_DRIVER_VERSION "39.2" -@@ -5422,8 +5423,21 @@ static int __init ipmi_init_msghandler_mod(void) +@@ -5427,8 +5428,21 @@ static int __init ipmi_init_msghandler_mod(void) { int rv; @@ -718,6 +755,29 @@ index 3404a91edf29..184dbb94710c 100644 + synchronize_rcu(); +} +EXPORT_SYMBOL_GPL(random_unregister_extrng); +diff --git a/drivers/firmware/efi/Kconfig b/drivers/firmware/efi/Kconfig +index 2c3dac5ecb36..f44f8b746e42 100644 +--- a/drivers/firmware/efi/Kconfig ++++ b/drivers/firmware/efi/Kconfig +@@ -91,6 +91,18 @@ config EFI_SOFT_RESERVE + + If unsure, say Y. + ++config EFI_DXE_MEM_ATTRIBUTES ++ bool "Adjust memory attributes in EFISTUB" ++ depends on EFI && EFI_STUB && X86 ++ default y ++ help ++ UEFI specification does not guarantee all memory to be ++ accessible for both write and execute as the kernel expects ++ it to be. ++ Use DXE services to check and alter memory protection ++ attributes during boot via EFISTUB to ensure that memory ++ ranges used by the kernel are writable and executable. ++ + config EFI_PARAMS_FROM_FDT + bool + help diff --git a/drivers/firmware/efi/Makefile b/drivers/firmware/efi/Makefile index c02ff25dd477..d860f8eb9a81 100644 --- a/drivers/firmware/efi/Makefile @@ -875,6 +935,276 @@ index 5502e176d51b..93b61ca552d6 100644 } static DEFINE_SPINLOCK(efi_mem_reserve_persistent_lock); +diff --git a/drivers/firmware/efi/libstub/efistub.h b/drivers/firmware/efi/libstub/efistub.h +index edb77b0621ea..2dc24776899a 100644 +--- a/drivers/firmware/efi/libstub/efistub.h ++++ b/drivers/firmware/efi/libstub/efistub.h +@@ -36,6 +36,9 @@ extern bool efi_novamap; + + extern const efi_system_table_t *efi_system_table; + ++typedef union efi_dxe_services_table efi_dxe_services_table_t; ++extern const efi_dxe_services_table_t *efi_dxe_table; ++ + efi_status_t __efiapi efi_pe_entry(efi_handle_t handle, + efi_system_table_t *sys_table_arg); + +@@ -44,6 +47,7 @@ efi_status_t __efiapi efi_pe_entry(efi_handle_t handle, + #define efi_is_native() (true) + #define efi_bs_call(func, ...) efi_system_table->boottime->func(__VA_ARGS__) + #define efi_rt_call(func, ...) efi_system_table->runtime->func(__VA_ARGS__) ++#define efi_dxe_call(func, ...) efi_dxe_table->func(__VA_ARGS__) + #define efi_table_attr(inst, attr) (inst->attr) + #define efi_call_proto(inst, func, ...) inst->func(inst, ##__VA_ARGS__) + +@@ -329,6 +333,76 @@ union efi_boot_services { + } mixed_mode; + }; + ++typedef enum { ++ EfiGcdMemoryTypeNonExistent, ++ EfiGcdMemoryTypeReserved, ++ EfiGcdMemoryTypeSystemMemory, ++ EfiGcdMemoryTypeMemoryMappedIo, ++ EfiGcdMemoryTypePersistent, ++ EfiGcdMemoryTypeMoreReliable, ++ EfiGcdMemoryTypeMaximum ++} efi_gcd_memory_type_t; ++ ++typedef struct { ++ efi_physical_addr_t base_address; ++ u64 length; ++ u64 capabilities; ++ u64 attributes; ++ efi_gcd_memory_type_t gcd_memory_type; ++ void *image_handle; ++ void *device_handle; ++} efi_gcd_memory_space_desc_t; ++ ++/* ++ * EFI DXE Services table ++ */ ++union efi_dxe_services_table { ++ struct { ++ efi_table_hdr_t hdr; ++ void *add_memory_space; ++ void *allocate_memory_space; ++ void *free_memory_space; ++ void *remove_memory_space; ++ efi_status_t (__efiapi *get_memory_space_descriptor)(efi_physical_addr_t, ++ efi_gcd_memory_space_desc_t *); ++ efi_status_t (__efiapi *set_memory_space_attributes)(efi_physical_addr_t, ++ u64, u64); ++ void *get_memory_space_map; ++ void *add_io_space; ++ void *allocate_io_space; ++ void *free_io_space; ++ void *remove_io_space; ++ void *get_io_space_descriptor; ++ void *get_io_space_map; ++ void *dispatch; ++ void *schedule; ++ void *trust; ++ void *process_firmware_volume; ++ void *set_memory_space_capabilities; ++ }; ++ struct { ++ efi_table_hdr_t hdr; ++ u32 add_memory_space; ++ u32 allocate_memory_space; ++ u32 free_memory_space; ++ u32 remove_memory_space; ++ u32 get_memory_space_descriptor; ++ u32 set_memory_space_attributes; ++ u32 get_memory_space_map; ++ u32 add_io_space; ++ u32 allocate_io_space; ++ u32 free_io_space; ++ u32 remove_io_space; ++ u32 get_io_space_descriptor; ++ u32 get_io_space_map; ++ u32 dispatch; ++ u32 schedule; ++ u32 trust; ++ u32 process_firmware_volume; ++ u32 set_memory_space_capabilities; ++ } mixed_mode; ++}; ++ + typedef union efi_uga_draw_protocol efi_uga_draw_protocol_t; + + union efi_uga_draw_protocol { +diff --git a/drivers/firmware/efi/libstub/x86-stub.c b/drivers/firmware/efi/libstub/x86-stub.c +index 01ddd4502e28..b14e88ccefca 100644 +--- a/drivers/firmware/efi/libstub/x86-stub.c ++++ b/drivers/firmware/efi/libstub/x86-stub.c +@@ -22,6 +22,7 @@ + #define MAXMEM_X86_64_4LEVEL (1ull << 46) + + const efi_system_table_t *efi_system_table; ++const efi_dxe_services_table_t *efi_dxe_table; + extern u32 image_offset; + static efi_loaded_image_t *image = NULL; + +@@ -211,9 +212,110 @@ static void retrieve_apple_device_properties(struct boot_params *boot_params) + } + } + ++static void ++adjust_memory_range_protection(unsigned long start, unsigned long size) ++{ ++ efi_status_t status; ++ efi_gcd_memory_space_desc_t desc; ++ unsigned long end, next; ++ unsigned long rounded_start, rounded_end; ++ unsigned long unprotect_start, unprotect_size; ++ int has_system_memory = 0; ++ ++ if (efi_dxe_table == NULL) ++ return; ++ ++ rounded_start = rounddown(start, EFI_PAGE_SIZE); ++ rounded_end = roundup(start + size, EFI_PAGE_SIZE); ++ ++ /* ++ * Don't modify memory region attributes, they are ++ * already suitable, to lower the possibility to ++ * encounter firmware bugs. ++ */ ++ ++ for (end = start + size; start < end; start = next) { ++ ++ status = efi_dxe_call(get_memory_space_descriptor, start, &desc); ++ ++ if (status != EFI_SUCCESS) ++ return; ++ ++ next = desc.base_address + desc.length; ++ ++ /* ++ * Only system memory is suitable for trampoline/kernel image placement, ++ * so only this type of memory needs its attributes to be modified. ++ */ ++ ++ if (desc.gcd_memory_type != EfiGcdMemoryTypeSystemMemory || ++ (desc.attributes & (EFI_MEMORY_RO | EFI_MEMORY_XP)) == 0) ++ continue; ++ ++ unprotect_start = max(rounded_start, (unsigned long)desc.base_address); ++ unprotect_size = min(rounded_end, next) - unprotect_start; ++ ++ status = efi_dxe_call(set_memory_space_attributes, ++ unprotect_start, unprotect_size, ++ EFI_MEMORY_WB); ++ ++ if (status != EFI_SUCCESS) { ++ efi_warn("Unable to unprotect memory range [%08lx,%08lx]: %d\n", ++ unprotect_start, ++ unprotect_start + unprotect_size, ++ (int)status); ++ } ++ } ++} ++ ++/* ++ * Trampoline takes 2 pages and can be loaded in first megabyte of memory ++ * with its end placed between 128k and 640k where BIOS might start. ++ * (see arch/x86/boot/compressed/pgtable_64.c) ++ * ++ * We cannot find exact trampoline placement since memory map ++ * can be modified by UEFI, and it can alter the computed address. ++ */ ++ ++#define TRAMPOLINE_PLACEMENT_BASE ((128 - 8)*1024) ++#define TRAMPOLINE_PLACEMENT_SIZE (640*1024 - (128 - 8)*1024) ++ ++void startup_32(struct boot_params *boot_params); ++ ++static void ++setup_memory_protection(unsigned long image_base, unsigned long image_size) ++{ ++ /* ++ * Allow execution of possible trampoline used ++ * for switching between 4- and 5-level page tables ++ * and relocated kernel image. ++ */ ++ ++ adjust_memory_range_protection(TRAMPOLINE_PLACEMENT_BASE, ++ TRAMPOLINE_PLACEMENT_SIZE); ++ ++#ifdef CONFIG_64BIT ++ if (image_base != (unsigned long)startup_32) ++ adjust_memory_range_protection(image_base, image_size); ++#else ++ /* ++ * Clear protection flags on a whole range of possible ++ * addresses used for KASLR. We don't need to do that ++ * on x86_64, since KASLR/extraction is performed after ++ * dedicated identity page tables are built and we only ++ * need to remove possible protection on relocated image ++ * itself disregarding further relocations. ++ */ ++ adjust_memory_range_protection(LOAD_PHYSICAL_ADDR, ++ KERNEL_IMAGE_SIZE - LOAD_PHYSICAL_ADDR); ++#endif ++} ++ + static const efi_char16_t apple[] = L"Apple"; + +-static void setup_quirks(struct boot_params *boot_params) ++static void setup_quirks(struct boot_params *boot_params, ++ unsigned long image_base, ++ unsigned long image_size) + { + efi_char16_t *fw_vendor = (efi_char16_t *)(unsigned long) + efi_table_attr(efi_system_table, fw_vendor); +@@ -222,6 +324,9 @@ static void setup_quirks(struct boot_params *boot_params) + if (IS_ENABLED(CONFIG_APPLE_PROPERTIES)) + retrieve_apple_device_properties(boot_params); + } ++ ++ if (IS_ENABLED(CONFIG_EFI_DXE_MEM_ATTRIBUTES)) ++ setup_memory_protection(image_base, image_size); + } + + /* +@@ -341,8 +446,6 @@ static void __noreturn efi_exit(efi_handle_t handle, efi_status_t status) + asm("hlt"); + } + +-void startup_32(struct boot_params *boot_params); +- + void __noreturn efi_stub_entry(efi_handle_t handle, + efi_system_table_t *sys_table_arg, + struct boot_params *boot_params); +@@ -677,11 +780,17 @@ unsigned long efi_main(efi_handle_t handle, + efi_status_t status; + + efi_system_table = sys_table_arg; +- + /* Check if we were booted by the EFI firmware */ + if (efi_system_table->hdr.signature != EFI_SYSTEM_TABLE_SIGNATURE) + efi_exit(handle, EFI_INVALID_PARAMETER); + ++ efi_dxe_table = get_efi_config_table(EFI_DXE_SERVICES_TABLE_GUID); ++ if (efi_dxe_table && ++ efi_dxe_table->hdr.signature != EFI_DXE_SERVICES_TABLE_SIGNATURE) { ++ efi_warn("Ignoring DXE services table: invalid signature\n"); ++ efi_dxe_table = NULL; ++ } ++ + /* + * If the kernel isn't already loaded at a suitable address, + * relocate it. +@@ -791,7 +900,7 @@ unsigned long efi_main(efi_handle_t handle, + + setup_efi_pci(boot_params); + +- setup_quirks(boot_params); ++ setup_quirks(boot_params, bzimage_addr, buffer_end - buffer_start); + + status = exit_boot(boot_params, handle); + if (status != EFI_SUCCESS) { diff --git a/drivers/firmware/efi/secureboot.c b/drivers/firmware/efi/secureboot.c new file mode 100644 index 000000000000..de0a3714a5d4 @@ -1639,7 +1969,7 @@ index dca2b1355bb1..6150d11a607e 100644 * A dma_addr_t can hold any valid DMA or bus address for the platform. It can * be given to a device to use as a DMA source or target. It is specific to a diff --git a/include/linux/efi.h b/include/linux/efi.h -index ccd4d3f91c98..e64643e3e364 100644 +index ccd4d3f91c98..2241dfa131e7 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -43,6 +43,8 @@ @@ -1651,7 +1981,23 @@ index ccd4d3f91c98..e64643e3e364 100644 typedef unsigned long efi_status_t; typedef u8 efi_bool_t; typedef u16 efi_char16_t; /* UNICODE character */ -@@ -829,6 +831,14 @@ extern int __init efi_setup_pcdp_console(char *); +@@ -383,6 +385,7 @@ void efi_native_runtime_setup(void); + #define EFI_LOAD_FILE_PROTOCOL_GUID EFI_GUID(0x56ec3091, 0x954c, 0x11d2, 0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b) + #define EFI_LOAD_FILE2_PROTOCOL_GUID EFI_GUID(0x4006c0c1, 0xfcb3, 0x403e, 0x99, 0x6d, 0x4a, 0x6c, 0x87, 0x24, 0xe0, 0x6d) + #define EFI_RT_PROPERTIES_TABLE_GUID EFI_GUID(0xeb66918a, 0x7eef, 0x402a, 0x84, 0x2e, 0x93, 0x1d, 0x21, 0xc3, 0x8a, 0xe9) ++#define EFI_DXE_SERVICES_TABLE_GUID EFI_GUID(0x05ad34ba, 0x6f02, 0x4214, 0x95, 0x2e, 0x4d, 0xa0, 0x39, 0x8e, 0x2b, 0xb9) + + #define EFI_IMAGE_SECURITY_DATABASE_GUID EFI_GUID(0xd719b2cb, 0x3d3a, 0x4596, 0xa3, 0xbc, 0xda, 0xd0, 0x0e, 0x67, 0x65, 0x6f) + #define EFI_SHIM_LOCK_GUID EFI_GUID(0x605dab50, 0xe046, 0x4300, 0xab, 0xb6, 0x3d, 0xd8, 0x10, 0xdd, 0x8b, 0x23) +@@ -435,6 +438,7 @@ typedef struct { + } efi_config_table_type_t; + + #define EFI_SYSTEM_TABLE_SIGNATURE ((u64)0x5453595320494249ULL) ++#define EFI_DXE_SERVICES_TABLE_SIGNATURE ((u64)0x565245535f455844ULL) + + #define EFI_2_30_SYSTEM_TABLE_REVISION ((2 << 16) | (30)) + #define EFI_2_20_SYSTEM_TABLE_REVISION ((2 << 16) | (20)) +@@ -829,6 +833,14 @@ extern int __init efi_setup_pcdp_console(char *); #define EFI_MEM_ATTR 10 /* Did firmware publish an EFI_MEMORY_ATTRIBUTES table? */ #define EFI_MEM_NO_SOFT_RESERVE 11 /* Is the kernel configured to ignore soft reservations? */ #define EFI_PRESERVE_BS_REGIONS 12 /* Are EFI boot-services memory segments available? */ @@ -1666,7 +2012,7 @@ index ccd4d3f91c98..e64643e3e364 100644 #ifdef CONFIG_EFI /* -@@ -840,6 +850,8 @@ static inline bool efi_enabled(int feature) +@@ -840,6 +852,8 @@ static inline bool efi_enabled(int feature) } extern void efi_reboot(enum reboot_mode reboot_mode, const char *__unused); @@ -1675,7 +2021,7 @@ index ccd4d3f91c98..e64643e3e364 100644 bool __pure __efi_soft_reserve_enabled(void); static inline bool __pure efi_soft_reserve_enabled(void) -@@ -860,6 +872,8 @@ static inline bool efi_enabled(int feature) +@@ -860,6 +874,8 @@ static inline bool efi_enabled(int feature) static inline void efi_reboot(enum reboot_mode reboot_mode, const char *__unused) {} @@ -1684,7 +2030,7 @@ index ccd4d3f91c98..e64643e3e364 100644 static inline bool efi_soft_reserve_enabled(void) { return false; -@@ -872,6 +886,7 @@ static inline bool efi_rt_services_supported(unsigned int mask) +@@ -872,6 +888,7 @@ static inline bool efi_rt_services_supported(unsigned int mask) #endif extern int efi_status_to_err(efi_status_t status); @@ -1692,7 +2038,7 @@ index ccd4d3f91c98..e64643e3e364 100644 /* * Variable Attributes -@@ -1124,13 +1139,6 @@ static inline bool efi_runtime_disabled(void) { return true; } +@@ -1124,13 +1141,6 @@ static inline bool efi_runtime_disabled(void) { return true; } extern void efi_call_virt_check_flags(unsigned long flags, const char *call); extern unsigned long efi_call_virt_save_flags(void); |