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Diffstat (limited to 'fs/binfmt_elf.c')
-rw-r--r--fs/binfmt_elf.c36
1 files changed, 18 insertions, 18 deletions
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 2b02d41..26a951f 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -447,9 +447,8 @@ out:
static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
struct file *interpreter, unsigned long *interp_map_addr,
- unsigned long no_base)
+ unsigned long no_base, struct elf_phdr *interp_elf_phdata)
{
- struct elf_phdr *elf_phdata;
struct elf_phdr *eppnt;
unsigned long load_addr = 0;
int load_addr_set = 0;
@@ -467,17 +466,14 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
if (!interpreter->f_op->mmap)
goto out;
- elf_phdata = load_elf_phdrs(interp_elf_ex, interpreter);
- if (!elf_phdata)
- goto out;
-
- total_size = total_mapping_size(elf_phdata, interp_elf_ex->e_phnum);
+ total_size = total_mapping_size(interp_elf_phdata,
+ interp_elf_ex->e_phnum);
if (!total_size) {
error = -EINVAL;
- goto out_close;
+ goto out;
}
- eppnt = elf_phdata;
+ eppnt = interp_elf_phdata;
for (i = 0; i < interp_elf_ex->e_phnum; i++, eppnt++) {
if (eppnt->p_type == PT_LOAD) {
int elf_type = MAP_PRIVATE | MAP_DENYWRITE;
@@ -504,7 +500,7 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
*interp_map_addr = map_addr;
error = map_addr;
if (BAD_ADDR(map_addr))
- goto out_close;
+ goto out;
if (!load_addr_set &&
interp_elf_ex->e_type == ET_DYN) {
@@ -523,7 +519,7 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
eppnt->p_memsz > TASK_SIZE ||
TASK_SIZE - eppnt->p_memsz < k) {
error = -ENOMEM;
- goto out_close;
+ goto out;
}
/*
@@ -553,7 +549,7 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
*/
if (padzero(elf_bss)) {
error = -EFAULT;
- goto out_close;
+ goto out;
}
/* What we have mapped so far */
@@ -562,13 +558,10 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
/* Map the last of the bss segment */
error = vm_brk(elf_bss, last_bss - elf_bss);
if (BAD_ADDR(error))
- goto out_close;
+ goto out;
}
error = load_addr;
-
-out_close:
- kfree(elf_phdata);
out:
return error;
}
@@ -605,7 +598,7 @@ static int load_elf_binary(struct linux_binprm *bprm)
int load_addr_set = 0;
char * elf_interpreter = NULL;
unsigned long error;
- struct elf_phdr *elf_ppnt, *elf_phdata;
+ struct elf_phdr *elf_ppnt, *elf_phdata, *interp_elf_phdata = NULL;
unsigned long elf_bss, elf_brk;
int retval, i;
unsigned long elf_entry;
@@ -729,6 +722,12 @@ static int load_elf_binary(struct linux_binprm *bprm)
/* Verify the interpreter has a valid arch */
if (!elf_check_arch(&loc->interp_elf_ex))
goto out_free_dentry;
+
+ /* Load the interpreter program headers */
+ interp_elf_phdata = load_elf_phdrs(&loc->interp_elf_ex,
+ interpreter);
+ if (!interp_elf_phdata)
+ goto out_free_dentry;
}
/* Flush all traces of the currently running executable */
@@ -903,7 +902,7 @@ static int load_elf_binary(struct linux_binprm *bprm)
elf_entry = load_elf_interp(&loc->interp_elf_ex,
interpreter,
&interp_map_addr,
- load_bias);
+ load_bias, interp_elf_phdata);
if (!IS_ERR((void *)elf_entry)) {
/*
* load_elf_interp() returns relocation
@@ -994,6 +993,7 @@ out_ret:
/* error cleanup */
out_free_dentry:
+ kfree(interp_elf_phdata);
allow_write_access(interpreter);
if (interpreter)
fput(interpreter);
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