summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2022-10-04 02:56:40 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2022-10-04 02:56:40 +0300
commit12ed00ba01abf39e0869c02ccdde5e24a357466b (patch)
treeb0a0d83b86a7b335dd94044be0aebe306b41e4ab
parent8aebac82933ff1a7c8eede18cab11e1115e2062b (diff)
parent9f4beead610c83065cc0410bfe97ff51d8e9578d (diff)
downloadlinux-12ed00ba01abf39e0869c02ccdde5e24a357466b.tar.xz
Merge tag 'execve-v6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull execve updates from Kees Cook: "This removes a.out support globally; it has been disabled for a while now. - Remove a.out implementation globally (Eric W. Biederman) - Remove unused linux_binprm::taso member (Lukas Bulwahn)" * tag 'execve-v6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: binfmt: remove taso from linux_binprm struct a.out: Remove the a.out implementation
-rw-r--r--MAINTAINERS1
-rw-r--r--arch/alpha/include/asm/a.out.h16
-rw-r--r--arch/alpha/kernel/Makefile4
-rw-r--r--arch/alpha/kernel/binfmt_loader.c46
-rw-r--r--arch/alpha/kernel/osf_sys.c30
-rw-r--r--arch/arm/configs/badge4_defconfig1
-rw-r--r--arch/arm/configs/corgi_defconfig1
-rw-r--r--arch/arm/configs/ezx_defconfig1
-rw-r--r--arch/arm/configs/footbridge_defconfig1
-rw-r--r--arch/arm/configs/hackkit_defconfig1
-rw-r--r--arch/arm/configs/iop32x_defconfig1
-rw-r--r--arch/arm/configs/jornada720_defconfig1
-rw-r--r--arch/arm/configs/lart_defconfig1
-rw-r--r--arch/arm/configs/neponset_defconfig1
-rw-r--r--arch/arm/configs/netwinder_defconfig1
-rw-r--r--arch/arm/configs/rpc_defconfig1
-rw-r--r--arch/arm/configs/spitz_defconfig1
-rw-r--r--fs/Kconfig.binfmt33
-rw-r--r--fs/Makefile1
-rw-r--r--fs/binfmt_aout.c342
-rw-r--r--fs/exec.c3
-rw-r--r--include/linux/a.out.h18
-rw-r--r--include/linux/binfmts.h3
23 files changed, 1 insertions, 508 deletions
diff --git a/MAINTAINERS b/MAINTAINERS
index c82daad19c3d..486e8e0450aa 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -7685,7 +7685,6 @@ R: Kees Cook <keescook@chromium.org>
L: linux-mm@kvack.org
S: Supported
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/execve
-F: arch/alpha/kernel/binfmt_loader.c
F: fs/*binfmt_*.c
F: fs/exec.c
F: include/linux/binfmts.h
diff --git a/arch/alpha/include/asm/a.out.h b/arch/alpha/include/asm/a.out.h
deleted file mode 100644
index d2346b7caff1..000000000000
--- a/arch/alpha/include/asm/a.out.h
+++ /dev/null
@@ -1,16 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __ALPHA_A_OUT_H__
-#define __ALPHA_A_OUT_H__
-
-#include <uapi/asm/a.out.h>
-
-
-/* Assume that start addresses below 4G belong to a TASO application.
- Unfortunately, there is no proper bit in the exec header to check.
- Worse, we have to notice the start address before swapping to use
- /sbin/loader, which of course is _not_ a TASO application. */
-#define SET_AOUT_PERSONALITY(BFPM, EX) \
- set_personality (((BFPM->taso || EX.ah.entry < 0x100000000L \
- ? ADDR_LIMIT_32BIT : 0) | PER_OSF4))
-
-#endif /* __A_OUT_GNU_H__ */
diff --git a/arch/alpha/kernel/Makefile b/arch/alpha/kernel/Makefile
index 5a74581bf0ee..6a274c0d53a2 100644
--- a/arch/alpha/kernel/Makefile
+++ b/arch/alpha/kernel/Makefile
@@ -47,10 +47,6 @@ else
# Misc support
obj-$(CONFIG_ALPHA_SRM) += srmcons.o
-ifdef CONFIG_BINFMT_AOUT
-obj-y += binfmt_loader.o
-endif
-
# Core logic support
obj-$(CONFIG_ALPHA_APECS) += core_apecs.o
obj-$(CONFIG_ALPHA_CIA) += core_cia.o
diff --git a/arch/alpha/kernel/binfmt_loader.c b/arch/alpha/kernel/binfmt_loader.c
deleted file mode 100644
index e4be7a543ecf..000000000000
--- a/arch/alpha/kernel/binfmt_loader.c
+++ /dev/null
@@ -1,46 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <linux/init.h>
-#include <linux/fs.h>
-#include <linux/file.h>
-#include <linux/mm_types.h>
-#include <linux/binfmts.h>
-#include <linux/a.out.h>
-
-static int load_binary(struct linux_binprm *bprm)
-{
- struct exec *eh = (struct exec *)bprm->buf;
- unsigned long loader;
- struct file *file;
- int retval;
-
- if (eh->fh.f_magic != 0x183 || (eh->fh.f_flags & 0x3000) != 0x3000)
- return -ENOEXEC;
-
- if (bprm->loader)
- return -ENOEXEC;
-
- loader = bprm->vma->vm_end - sizeof(void *);
-
- file = open_exec("/sbin/loader");
- retval = PTR_ERR(file);
- if (IS_ERR(file))
- return retval;
-
- /* Remember if the application is TASO. */
- bprm->taso = eh->ah.entry < 0x100000000UL;
-
- bprm->interpreter = file;
- bprm->loader = loader;
- return 0;
-}
-
-static struct linux_binfmt loader_format = {
- .load_binary = load_binary,
-};
-
-static int __init init_loader_binfmt(void)
-{
- insert_binfmt(&loader_format);
- return 0;
-}
-arch_initcall(init_loader_binfmt);
diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index d257293401e2..b3ad8c44c971 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -1278,45 +1278,15 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
return addr;
}
-#ifdef CONFIG_OSF4_COMPAT
-/* Clear top 32 bits of iov_len in the user's buffer for
- compatibility with old versions of OSF/1 where iov_len
- was defined as int. */
-static int
-osf_fix_iov_len(const struct iovec __user *iov, unsigned long count)
-{
- unsigned long i;
-
- for (i = 0 ; i < count ; i++) {
- int __user *iov_len_high = (int __user *)&iov[i].iov_len + 1;
-
- if (put_user(0, iov_len_high))
- return -EFAULT;
- }
- return 0;
-}
-#endif
-
SYSCALL_DEFINE3(osf_readv, unsigned long, fd,
const struct iovec __user *, vector, unsigned long, count)
{
-#ifdef CONFIG_OSF4_COMPAT
- if (unlikely(personality(current->personality) == PER_OSF4))
- if (osf_fix_iov_len(vector, count))
- return -EFAULT;
-#endif
-
return sys_readv(fd, vector, count);
}
SYSCALL_DEFINE3(osf_writev, unsigned long, fd,
const struct iovec __user *, vector, unsigned long, count)
{
-#ifdef CONFIG_OSF4_COMPAT
- if (unlikely(personality(current->personality) == PER_OSF4))
- if (osf_fix_iov_len(vector, count))
- return -EFAULT;
-#endif
return sys_writev(fd, vector, count);
}
diff --git a/arch/arm/configs/badge4_defconfig b/arch/arm/configs/badge4_defconfig
index 506f3378da07..6908032fbce8 100644
--- a/arch/arm/configs/badge4_defconfig
+++ b/arch/arm/configs/badge4_defconfig
@@ -6,7 +6,6 @@ CONFIG_UNUSED_BOARD_FILES=y
CONFIG_CMDLINE="init=/linuxrc root=/dev/mtdblock3"
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_FPE_NWFPE=y
-CONFIG_BINFMT_AOUT=m
CONFIG_MODULES=y
CONFIG_MODVERSIONS=y
CONFIG_PARTITION_ADVANCED=y
diff --git a/arch/arm/configs/corgi_defconfig b/arch/arm/configs/corgi_defconfig
index 1f137f74050f..df84640f4f57 100644
--- a/arch/arm/configs/corgi_defconfig
+++ b/arch/arm/configs/corgi_defconfig
@@ -16,7 +16,6 @@ CONFIG_MACH_HUSKY=y
CONFIG_UNUSED_BOARD_FILES=y
CONFIG_CMDLINE="console=ttyS0,115200n8 console=tty1 noinitrd root=/dev/mtdblock2 rootfstype=jffs2 debug"
CONFIG_FPE_NWFPE=y
-CONFIG_BINFMT_AOUT=m
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
diff --git a/arch/arm/configs/ezx_defconfig b/arch/arm/configs/ezx_defconfig
index 1a41391d7367..cd9ccc4e4627 100644
--- a/arch/arm/configs/ezx_defconfig
+++ b/arch/arm/configs/ezx_defconfig
@@ -25,7 +25,6 @@ CONFIG_CPU_FREQ_GOV_ONDEMAND=m
CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m
CONFIG_CPU_IDLE=y
CONFIG_FPE_NWFPE=y
-CONFIG_BINFMT_AOUT=m
CONFIG_PM=y
CONFIG_APM_EMULATION=y
CONFIG_MODULES=y
diff --git a/arch/arm/configs/footbridge_defconfig b/arch/arm/configs/footbridge_defconfig
index 504070812ad0..b5b56f8dda5f 100644
--- a/arch/arm/configs/footbridge_defconfig
+++ b/arch/arm/configs/footbridge_defconfig
@@ -9,7 +9,6 @@ CONFIG_ARCH_EBSA285_HOST=y
CONFIG_ARCH_NETWINDER=y
CONFIG_FPE_NWFPE=y
CONFIG_FPE_NWFPE_XP=y
-CONFIG_BINFMT_AOUT=y
CONFIG_MODULES=y
CONFIG_PARTITION_ADVANCED=y
CONFIG_ACORN_PARTITION=y
diff --git a/arch/arm/configs/hackkit_defconfig b/arch/arm/configs/hackkit_defconfig
index b9327b2eacd3..398558c4ffa8 100644
--- a/arch/arm/configs/hackkit_defconfig
+++ b/arch/arm/configs/hackkit_defconfig
@@ -7,7 +7,6 @@ CONFIG_UNUSED_BOARD_FILES=y
CONFIG_CMDLINE="console=ttySA0,115200 root=/dev/ram0 initrd=0xc0400000,8M init=/rootshell"
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_FPE_NWFPE=y
-CONFIG_BINFMT_AOUT=y
CONFIG_MODULES=y
CONFIG_NET=y
CONFIG_PACKET=y
diff --git a/arch/arm/configs/iop32x_defconfig b/arch/arm/configs/iop32x_defconfig
index c16e92cdfd00..19e30e790d35 100644
--- a/arch/arm/configs/iop32x_defconfig
+++ b/arch/arm/configs/iop32x_defconfig
@@ -12,7 +12,6 @@ CONFIG_MACH_N2100=y
CONFIG_UNUSED_BOARD_FILES=y
CONFIG_CMDLINE="console=ttyS0,115200 root=/dev/nfs ip=bootp cachepolicy=writealloc"
CONFIG_FPE_NWFPE=y
-CONFIG_BINFMT_AOUT=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_PARTITION_ADVANCED=y
diff --git a/arch/arm/configs/jornada720_defconfig b/arch/arm/configs/jornada720_defconfig
index 3dcf89d3e1f1..1a11ee6b3e24 100644
--- a/arch/arm/configs/jornada720_defconfig
+++ b/arch/arm/configs/jornada720_defconfig
@@ -6,7 +6,6 @@ CONFIG_SA1100_JORNADA720=y
CONFIG_SA1100_JORNADA720_SSP=y
CONFIG_UNUSED_BOARD_FILES=y
CONFIG_FPE_NWFPE=y
-CONFIG_BINFMT_AOUT=y
CONFIG_PM=y
CONFIG_MODULES=y
CONFIG_NET=y
diff --git a/arch/arm/configs/lart_defconfig b/arch/arm/configs/lart_defconfig
index 0c2f19d756c0..00583d64d2ea 100644
--- a/arch/arm/configs/lart_defconfig
+++ b/arch/arm/configs/lart_defconfig
@@ -8,7 +8,6 @@ CONFIG_CMDLINE="console=ttySA0,9600 root=/dev/ram"
CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_FPE_NWFPE=y
-CONFIG_BINFMT_AOUT=y
CONFIG_PM=y
CONFIG_MODULES=y
CONFIG_NET=y
diff --git a/arch/arm/configs/neponset_defconfig b/arch/arm/configs/neponset_defconfig
index 907403529e30..2d16ddb0e7ff 100644
--- a/arch/arm/configs/neponset_defconfig
+++ b/arch/arm/configs/neponset_defconfig
@@ -9,7 +9,6 @@ CONFIG_ZBOOT_ROM_BSS=0xc1000000
CONFIG_ZBOOT_ROM=y
CONFIG_CMDLINE="console=ttySA0,38400n8 cpufreq=221200 rw root=/dev/mtdblock2 mtdparts=sa1100:512K(boot),1M(kernel),2560K(initrd),4M(root) load_ramdisk=1 prompt_ramdisk=0 mem=32M noinitrd initrd=0xc0800000,3M"
CONFIG_FPE_NWFPE=y
-CONFIG_BINFMT_AOUT=y
CONFIG_PM=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
diff --git a/arch/arm/configs/netwinder_defconfig b/arch/arm/configs/netwinder_defconfig
index cf7bbcf9d98a..7a14ea1faa65 100644
--- a/arch/arm/configs/netwinder_defconfig
+++ b/arch/arm/configs/netwinder_defconfig
@@ -5,7 +5,6 @@ CONFIG_ARCH_NETWINDER=y
CONFIG_DEPRECATED_PARAM_STRUCT=y
CONFIG_CMDLINE="root=0x801"
CONFIG_FPE_NWFPE=y
-CONFIG_BINFMT_AOUT=y
CONFIG_PARTITION_ADVANCED=y
CONFIG_NET=y
CONFIG_PACKET=y
diff --git a/arch/arm/configs/rpc_defconfig b/arch/arm/configs/rpc_defconfig
index 16d74a1f027a..b667c9d4527c 100644
--- a/arch/arm/configs/rpc_defconfig
+++ b/arch/arm/configs/rpc_defconfig
@@ -7,7 +7,6 @@ CONFIG_MODULE_UNLOAD=y
CONFIG_ARCH_RPC=y
CONFIG_CPU_SA110=y
CONFIG_FPE_NWFPE=y
-CONFIG_BINFMT_AOUT=y
CONFIG_PARTITION_ADVANCED=y
CONFIG_BSD_DISKLABEL=y
CONFIG_SLAB=y
diff --git a/arch/arm/configs/spitz_defconfig b/arch/arm/configs/spitz_defconfig
index 1284a1d92ca3..66d74653f3fb 100644
--- a/arch/arm/configs/spitz_defconfig
+++ b/arch/arm/configs/spitz_defconfig
@@ -13,7 +13,6 @@ CONFIG_MACH_AKITA=y
CONFIG_MACH_BORZOI=y
CONFIG_CMDLINE="console=ttyS0,115200n8 console=tty1 noinitrd root=/dev/mtdblock2 rootfstype=jffs2 debug"
CONFIG_FPE_NWFPE=y
-CONFIG_BINFMT_AOUT=m
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
diff --git a/fs/Kconfig.binfmt b/fs/Kconfig.binfmt
index 21e154516bf2..f14478643b91 100644
--- a/fs/Kconfig.binfmt
+++ b/fs/Kconfig.binfmt
@@ -142,39 +142,6 @@ config BINFMT_ZFLAT
help
Support FLAT format compressed binaries
-config HAVE_AOUT
- def_bool n
-
-config BINFMT_AOUT
- tristate "Kernel support for a.out and ECOFF binaries"
- depends on HAVE_AOUT
- help
- A.out (Assembler.OUTput) is a set of formats for libraries and
- executables used in the earliest versions of UNIX. Linux used
- the a.out formats QMAGIC and ZMAGIC until they were replaced
- with the ELF format.
-
- The conversion to ELF started in 1995. This option is primarily
- provided for historical interest and for the benefit of those
- who need to run binaries from that era.
-
- Most people should answer N here. If you think you may have
- occasional use for this format, enable module support above
- and answer M here to compile this support as a module called
- binfmt_aout.
-
- If any crucial components of your system (such as /sbin/init
- or /lib/ld.so) are still in a.out format, you will have to
- say Y here.
-
-config OSF4_COMPAT
- bool "OSF/1 v4 readv/writev compatibility"
- depends on ALPHA && BINFMT_AOUT
- help
- Say Y if you are using OSF/1 binaries (like Netscape and Acrobat)
- with v4 shared libraries freely available from Compaq. If you're
- going to use shared libraries from Tru64 version 5.0 or later, say N.
-
config BINFMT_MISC
tristate "Kernel support for MISC binaries"
help
diff --git a/fs/Makefile b/fs/Makefile
index 93b80529f8e8..4dea17840761 100644
--- a/fs/Makefile
+++ b/fs/Makefile
@@ -38,7 +38,6 @@ obj-$(CONFIG_FS_DAX) += dax.o
obj-$(CONFIG_FS_ENCRYPTION) += crypto/
obj-$(CONFIG_FS_VERITY) += verity/
obj-$(CONFIG_FILE_LOCKING) += locks.o
-obj-$(CONFIG_BINFMT_AOUT) += binfmt_aout.o
obj-$(CONFIG_BINFMT_MISC) += binfmt_misc.o
obj-$(CONFIG_BINFMT_SCRIPT) += binfmt_script.o
obj-$(CONFIG_BINFMT_ELF) += binfmt_elf.o
diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c
deleted file mode 100644
index 0dcfc691e7e2..000000000000
--- a/fs/binfmt_aout.c
+++ /dev/null
@@ -1,342 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * linux/fs/binfmt_aout.c
- *
- * Copyright (C) 1991, 1992, 1996 Linus Torvalds
- */
-
-#include <linux/module.h>
-
-#include <linux/time.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/mman.h>
-#include <linux/a.out.h>
-#include <linux/errno.h>
-#include <linux/signal.h>
-#include <linux/string.h>
-#include <linux/fs.h>
-#include <linux/file.h>
-#include <linux/stat.h>
-#include <linux/fcntl.h>
-#include <linux/ptrace.h>
-#include <linux/user.h>
-#include <linux/binfmts.h>
-#include <linux/personality.h>
-#include <linux/init.h>
-#include <linux/coredump.h>
-#include <linux/slab.h>
-#include <linux/sched/task_stack.h>
-
-#include <linux/uaccess.h>
-#include <asm/cacheflush.h>
-
-static int load_aout_binary(struct linux_binprm *);
-static int load_aout_library(struct file*);
-
-static struct linux_binfmt aout_format = {
- .module = THIS_MODULE,
- .load_binary = load_aout_binary,
- .load_shlib = load_aout_library,
-};
-
-#define BAD_ADDR(x) ((unsigned long)(x) >= TASK_SIZE)
-
-static int set_brk(unsigned long start, unsigned long end)
-{
- start = PAGE_ALIGN(start);
- end = PAGE_ALIGN(end);
- if (end > start)
- return vm_brk(start, end - start);
- return 0;
-}
-
-/*
- * create_aout_tables() parses the env- and arg-strings in new user
- * memory and creates the pointer tables from them, and puts their
- * addresses on the "stack", returning the new stack pointer value.
- */
-static unsigned long __user *create_aout_tables(char __user *p, struct linux_binprm * bprm)
-{
- char __user * __user *argv;
- char __user * __user *envp;
- unsigned long __user *sp;
- int argc = bprm->argc;
- int envc = bprm->envc;
-
- sp = (void __user *)((-(unsigned long)sizeof(char *)) & (unsigned long) p);
-#ifdef __alpha__
-/* whee.. test-programs are so much fun. */
- put_user(0, --sp);
- put_user(0, --sp);
- if (bprm->loader) {
- put_user(0, --sp);
- put_user(1003, --sp);
- put_user(bprm->loader, --sp);
- put_user(1002, --sp);
- }
- put_user(bprm->exec, --sp);
- put_user(1001, --sp);
-#endif
- sp -= envc+1;
- envp = (char __user * __user *) sp;
- sp -= argc+1;
- argv = (char __user * __user *) sp;
-#ifndef __alpha__
- put_user((unsigned long) envp,--sp);
- put_user((unsigned long) argv,--sp);
-#endif
- put_user(argc,--sp);
- current->mm->arg_start = (unsigned long) p;
- while (argc-->0) {
- char c;
- put_user(p,argv++);
- do {
- get_user(c,p++);
- } while (c);
- }
- put_user(NULL,argv);
- current->mm->arg_end = current->mm->env_start = (unsigned long) p;
- while (envc-->0) {
- char c;
- put_user(p,envp++);
- do {
- get_user(c,p++);
- } while (c);
- }
- put_user(NULL,envp);
- current->mm->env_end = (unsigned long) p;
- return sp;
-}
-
-/*
- * These are the functions used to load a.out style executables and shared
- * libraries. There is no binary dependent code anywhere else.
- */
-
-static int load_aout_binary(struct linux_binprm * bprm)
-{
- struct pt_regs *regs = current_pt_regs();
- struct exec ex;
- unsigned long error;
- unsigned long fd_offset;
- unsigned long rlim;
- int retval;
-
- ex = *((struct exec *) bprm->buf); /* exec-header */
- if ((N_MAGIC(ex) != ZMAGIC && N_MAGIC(ex) != OMAGIC &&
- N_MAGIC(ex) != QMAGIC && N_MAGIC(ex) != NMAGIC) ||
- N_TRSIZE(ex) || N_DRSIZE(ex) ||
- i_size_read(file_inode(bprm->file)) < ex.a_text+ex.a_data+N_SYMSIZE(ex)+N_TXTOFF(ex)) {
- return -ENOEXEC;
- }
-
- /*
- * Requires a mmap handler. This prevents people from using a.out
- * as part of an exploit attack against /proc-related vulnerabilities.
- */
- if (!bprm->file->f_op->mmap)
- return -ENOEXEC;
-
- fd_offset = N_TXTOFF(ex);
-
- /* Check initial limits. This avoids letting people circumvent
- * size limits imposed on them by creating programs with large
- * arrays in the data or bss.
- */
- rlim = rlimit(RLIMIT_DATA);
- if (rlim >= RLIM_INFINITY)
- rlim = ~0;
- if (ex.a_data + ex.a_bss > rlim)
- return -ENOMEM;
-
- /* Flush all traces of the currently running executable */
- retval = begin_new_exec(bprm);
- if (retval)
- return retval;
-
- /* OK, This is the point of no return */
-#ifdef __alpha__
- SET_AOUT_PERSONALITY(bprm, ex);
-#else
- set_personality(PER_LINUX);
-#endif
- setup_new_exec(bprm);
-
- current->mm->end_code = ex.a_text +
- (current->mm->start_code = N_TXTADDR(ex));
- current->mm->end_data = ex.a_data +
- (current->mm->start_data = N_DATADDR(ex));
- current->mm->brk = ex.a_bss +
- (current->mm->start_brk = N_BSSADDR(ex));
-
- retval = setup_arg_pages(bprm, STACK_TOP, EXSTACK_DEFAULT);
- if (retval < 0)
- return retval;
-
-
- if (N_MAGIC(ex) == OMAGIC) {
- unsigned long text_addr, map_size;
- loff_t pos;
-
- text_addr = N_TXTADDR(ex);
-
-#ifdef __alpha__
- pos = fd_offset;
- map_size = ex.a_text+ex.a_data + PAGE_SIZE - 1;
-#else
- pos = 32;
- map_size = ex.a_text+ex.a_data;
-#endif
- error = vm_brk(text_addr & PAGE_MASK, map_size);
- if (error)
- return error;
-
- error = read_code(bprm->file, text_addr, pos,
- ex.a_text+ex.a_data);
- if ((signed long)error < 0)
- return error;
- } else {
- if ((ex.a_text & 0xfff || ex.a_data & 0xfff) &&
- (N_MAGIC(ex) != NMAGIC) && printk_ratelimit())
- {
- printk(KERN_NOTICE "executable not page aligned\n");
- }
-
- if ((fd_offset & ~PAGE_MASK) != 0 && printk_ratelimit())
- {
- printk(KERN_WARNING
- "fd_offset is not page aligned. Please convert program: %pD\n",
- bprm->file);
- }
-
- if (!bprm->file->f_op->mmap||((fd_offset & ~PAGE_MASK) != 0)) {
- error = vm_brk(N_TXTADDR(ex), ex.a_text+ex.a_data);
- if (error)
- return error;
-
- read_code(bprm->file, N_TXTADDR(ex), fd_offset,
- ex.a_text + ex.a_data);
- goto beyond_if;
- }
-
- error = vm_mmap(bprm->file, N_TXTADDR(ex), ex.a_text,
- PROT_READ | PROT_EXEC, MAP_FIXED | MAP_PRIVATE,
- fd_offset);
-
- if (error != N_TXTADDR(ex))
- return error;
-
- error = vm_mmap(bprm->file, N_DATADDR(ex), ex.a_data,
- PROT_READ | PROT_WRITE | PROT_EXEC,
- MAP_FIXED | MAP_PRIVATE,
- fd_offset + ex.a_text);
- if (error != N_DATADDR(ex))
- return error;
- }
-beyond_if:
- set_binfmt(&aout_format);
-
- retval = set_brk(current->mm->start_brk, current->mm->brk);
- if (retval < 0)
- return retval;
-
- current->mm->start_stack =
- (unsigned long) create_aout_tables((char __user *) bprm->p, bprm);
-#ifdef __alpha__
- regs->gp = ex.a_gpvalue;
-#endif
- finalize_exec(bprm);
- start_thread(regs, ex.a_entry, current->mm->start_stack);
- return 0;
-}
-
-static int load_aout_library(struct file *file)
-{
- struct inode * inode;
- unsigned long bss, start_addr, len;
- unsigned long error;
- int retval;
- struct exec ex;
- loff_t pos = 0;
-
- inode = file_inode(file);
-
- retval = -ENOEXEC;
- error = kernel_read(file, &ex, sizeof(ex), &pos);
- if (error != sizeof(ex))
- goto out;
-
- /* We come in here for the regular a.out style of shared libraries */
- if ((N_MAGIC(ex) != ZMAGIC && N_MAGIC(ex) != QMAGIC) || N_TRSIZE(ex) ||
- N_DRSIZE(ex) || ((ex.a_entry & 0xfff) && N_MAGIC(ex) == ZMAGIC) ||
- i_size_read(inode) < ex.a_text+ex.a_data+N_SYMSIZE(ex)+N_TXTOFF(ex)) {
- goto out;
- }
-
- /*
- * Requires a mmap handler. This prevents people from using a.out
- * as part of an exploit attack against /proc-related vulnerabilities.
- */
- if (!file->f_op->mmap)
- goto out;
-
- if (N_FLAGS(ex))
- goto out;
-
- /* For QMAGIC, the starting address is 0x20 into the page. We mask
- this off to get the starting address for the page */
-
- start_addr = ex.a_entry & 0xfffff000;
-
- if ((N_TXTOFF(ex) & ~PAGE_MASK) != 0) {
- if (printk_ratelimit())
- {
- printk(KERN_WARNING
- "N_TXTOFF is not page aligned. Please convert library: %pD\n",
- file);
- }
- retval = vm_brk(start_addr, ex.a_text + ex.a_data + ex.a_bss);
- if (retval)
- goto out;
-
- read_code(file, start_addr, N_TXTOFF(ex),
- ex.a_text + ex.a_data);
- retval = 0;
- goto out;
- }
- /* Now use mmap to map the library into memory. */
- error = vm_mmap(file, start_addr, ex.a_text + ex.a_data,
- PROT_READ | PROT_WRITE | PROT_EXEC,
- MAP_FIXED | MAP_PRIVATE,
- N_TXTOFF(ex));
- retval = error;
- if (error != start_addr)
- goto out;
-
- len = PAGE_ALIGN(ex.a_text + ex.a_data);
- bss = ex.a_text + ex.a_data + ex.a_bss;
- if (bss > len) {
- retval = vm_brk(start_addr + len, bss - len);
- if (retval)
- goto out;
- }
- retval = 0;
-out:
- return retval;
-}
-
-static int __init init_aout_binfmt(void)
-{
- register_binfmt(&aout_format);
- return 0;
-}
-
-static void __exit exit_aout_binfmt(void)
-{
- unregister_binfmt(&aout_format);
-}
-
-core_initcall(init_aout_binfmt);
-module_exit(exit_aout_binfmt);
-MODULE_LICENSE("GPL");
diff --git a/fs/exec.c b/fs/exec.c
index d046dbb9cbd0..69a572fc57db 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -957,8 +957,7 @@ struct file *open_exec(const char *name)
}
EXPORT_SYMBOL(open_exec);
-#if defined(CONFIG_HAVE_AOUT) || defined(CONFIG_BINFMT_FLAT) || \
- defined(CONFIG_BINFMT_ELF_FDPIC)
+#if defined(CONFIG_BINFMT_FLAT) || defined(CONFIG_BINFMT_ELF_FDPIC)
ssize_t read_code(struct file *file, unsigned long addr, loff_t pos, size_t len)
{
ssize_t res = vfs_read(file, (void __user *)addr, len, &pos);
diff --git a/include/linux/a.out.h b/include/linux/a.out.h
deleted file mode 100644
index 600cf45645c6..000000000000
--- a/include/linux/a.out.h
+++ /dev/null
@@ -1,18 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __A_OUT_GNU_H__
-#define __A_OUT_GNU_H__
-
-#include <uapi/linux/a.out.h>
-
-#ifndef __ASSEMBLY__
-#ifdef linux
-#include <asm/page.h>
-#if defined(__i386__) || defined(__mc68000__)
-#else
-#ifndef SEGMENT_SIZE
-#define SEGMENT_SIZE PAGE_SIZE
-#endif
-#endif
-#endif
-#endif /*__ASSEMBLY__ */
-#endif /* __A_OUT_GNU_H__ */
diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h
index 3dc20c4f394c..8d51f69f9f5e 100644
--- a/include/linux/binfmts.h
+++ b/include/linux/binfmts.h
@@ -43,9 +43,6 @@ struct linux_binprm {
* original userspace.
*/
point_of_no_return:1;
-#ifdef __alpha__
- unsigned int taso:1;
-#endif
struct file *executable; /* Executable to pass to the interpreter */
struct file *interpreter;
struct file *file;