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ELF: Also pass any interpreter's file header to `arch_check_elf' 

Also pass any interpreter's file header to `arch_check_elf' so that any
architecture handler can have a look at it if needed.

Signed-off-by: Maciej W. Rozycki <macro@imgtec.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: Matthew Fortune <Matthew.Fortune@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11478/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Maciej W. Rozycki 2015-11-13 00:47:48 +00:00 committed by Ralf Baechle
parent 90d53a91fb
commit eb4bc076ff
3 changed files with 7 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/mips/include/asm/elf.h
View File

@ -448,7 +448,7 @@ struct arch_elf_state {
extern int arch_elf_pt_proc(void *ehdr, void *phdr, struct file *elf,
bool is_interp, struct arch_elf_state *state);
extern int arch_check_elf(void *ehdr, bool has_interpreter,
extern int arch_check_elf(void *ehdr, bool has_interpreter, void *interp_ehdr,
struct arch_elf_state *state);
extern void mips_set_personality_fp(struct arch_elf_state *state);

2
arch/mips/kernel/elf.c
View File

@ -128,7 +128,7 @@ int arch_elf_pt_proc(void *_ehdr, void *_phdr, struct file *elf,
return 0;
}
int arch_check_elf(void *_ehdr, bool has_interpreter,
int arch_check_elf(void *_ehdr, bool has_interpreter, void *_interp_ehdr,
struct arch_elf_state *state)
{
union {

6
fs/binfmt_elf.c
View File

@ -491,6 +491,7 @@ static inline int arch_elf_pt_proc(struct elfhdr *ehdr,
* arch_check_elf() - check an ELF executable
* @ehdr: The main ELF header
* @has_interp: True if the ELF has an interpreter, else false.
* @interp_ehdr: The interpreter's ELF header
* @state: Architecture-specific state preserved throughout the process
* of loading the ELF.
*
@ -502,6 +503,7 @@ static inline int arch_elf_pt_proc(struct elfhdr *ehdr,
* with that return code.
*/
static inline int arch_check_elf(struct elfhdr *ehdr, bool has_interp,
struct elfhdr *interp_ehdr,
struct arch_elf_state *state)
{
/* Dummy implementation, always proceed */
@ -829,7 +831,9 @@ static int load_elf_binary(struct linux_binprm *bprm)
* still possible to return an error to the code that invoked
* the exec syscall.
*/
retval = arch_check_elf(&loc->elf_ex, !!interpreter, &arch_state);
retval = arch_check_elf(&loc->elf_ex,
!!interpreter, &loc->interp_elf_ex,
&arch_state);
if (retval)
goto out_free_dentry;