diff options
Diffstat (limited to 'fs/binfmt_aout.c')
| -rw-r--r-- | fs/binfmt_aout.c | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c index bce87694f7b..ca0ba15a730 100644 --- a/fs/binfmt_aout.c +++ b/fs/binfmt_aout.c @@ -45,7 +45,6 @@ static int load_aout_library(struct file*); */ static int aout_core_dump(struct coredump_params *cprm) { - struct file *file = cprm->file; mm_segment_t fs; int has_dumped = 0; void __user *dump_start; @@ -85,10 +84,10 @@ static int aout_core_dump(struct coredump_params *cprm) set_fs(KERNEL_DS); /* struct user */ - if (!dump_write(file, &dump, sizeof(dump))) + if (!dump_emit(cprm, &dump, sizeof(dump))) goto end_coredump; /* Now dump all of the user data. Include malloced stuff as well */ - if (!dump_seek(cprm->file, PAGE_SIZE - sizeof(dump))) + if (!dump_skip(cprm, PAGE_SIZE - sizeof(dump))) goto end_coredump; /* now we start writing out the user space info */ set_fs(USER_DS); @@ -96,14 +95,14 @@ static int aout_core_dump(struct coredump_params *cprm) if (dump.u_dsize != 0) { dump_start = START_DATA(dump); dump_size = dump.u_dsize << PAGE_SHIFT; - if (!dump_write(file, dump_start, dump_size)) + if (!dump_emit(cprm, dump_start, dump_size)) goto end_coredump; } /* Now prepare to dump the stack area */ if (dump.u_ssize != 0) { dump_start = START_STACK(dump); dump_size = dump.u_ssize << PAGE_SHIFT; - if (!dump_write(file, dump_start, dump_size)) + if (!dump_emit(cprm, dump_start, dump_size)) goto end_coredump; } end_coredump: @@ -221,7 +220,7 @@ static int load_aout_binary(struct linux_binprm * bprm) * 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 || !bprm->file->f_op->mmap) + if (!bprm->file->f_op->mmap) return -ENOEXEC; fd_offset = N_TXTOFF(ex); @@ -255,8 +254,6 @@ static int load_aout_binary(struct linux_binprm * bprm) (current->mm->start_data = N_DATADDR(ex)); current->mm->brk = ex.a_bss + (current->mm->start_brk = N_BSSADDR(ex)); - current->mm->free_area_cache = current->mm->mmap_base; - current->mm->cached_hole_size = 0; retval = setup_arg_pages(bprm, STACK_TOP, EXSTACK_DEFAULT); if (retval < 0) { @@ -376,7 +373,7 @@ static int load_aout_library(struct file *file) * 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 || !file->f_op->mmap) + if (!file->f_op->mmap) goto out; if (N_FLAGS(ex)) |