diff options
Diffstat (limited to 'fs/binfmt_elf_fdpic.c')
| -rw-r--r-- | fs/binfmt_elf_fdpic.c | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c index a2e48c999c24..eba4e23b9ca0 100644 --- a/fs/binfmt_elf_fdpic.c +++ b/fs/binfmt_elf_fdpic.c | |||
| @@ -435,9 +435,10 @@ static int create_elf_fdpic_tables(struct linux_binprm *bprm, | |||
| 435 | struct elf_fdpic_params *interp_params) | 435 | struct elf_fdpic_params *interp_params) |
| 436 | { | 436 | { |
| 437 | unsigned long sp, csp, nitems; | 437 | unsigned long sp, csp, nitems; |
| 438 | elf_caddr_t *argv, *envp; | 438 | elf_caddr_t __user *argv, *envp; |
| 439 | size_t platform_len = 0, len; | 439 | size_t platform_len = 0, len; |
| 440 | char *k_platform, *u_platform, *p; | 440 | char *k_platform; |
| 441 | char __user *u_platform, *p; | ||
| 441 | long hwcap; | 442 | long hwcap; |
| 442 | int loop; | 443 | int loop; |
| 443 | 444 | ||
| @@ -462,12 +463,11 @@ static int create_elf_fdpic_tables(struct linux_binprm *bprm, | |||
| 462 | if (k_platform) { | 463 | if (k_platform) { |
| 463 | platform_len = strlen(k_platform) + 1; | 464 | platform_len = strlen(k_platform) + 1; |
| 464 | sp -= platform_len; | 465 | sp -= platform_len; |
| 466 | u_platform = (char __user *) sp; | ||
| 465 | if (__copy_to_user(u_platform, k_platform, platform_len) != 0) | 467 | if (__copy_to_user(u_platform, k_platform, platform_len) != 0) |
| 466 | return -EFAULT; | 468 | return -EFAULT; |
| 467 | } | 469 | } |
| 468 | 470 | ||
| 469 | u_platform = (char *) sp; | ||
| 470 | |||
| 471 | #if defined(__i386__) && defined(CONFIG_SMP) | 471 | #if defined(__i386__) && defined(CONFIG_SMP) |
| 472 | /* in some cases (e.g. Hyper-Threading), we want to avoid L1 evictions | 472 | /* in some cases (e.g. Hyper-Threading), we want to avoid L1 evictions |
| 473 | * by the processes running on the same package. One thing we can do | 473 | * by the processes running on the same package. One thing we can do |
| @@ -490,7 +490,7 @@ static int create_elf_fdpic_tables(struct linux_binprm *bprm, | |||
| 490 | sp = (sp - len) & ~7UL; | 490 | sp = (sp - len) & ~7UL; |
| 491 | exec_params->map_addr = sp; | 491 | exec_params->map_addr = sp; |
| 492 | 492 | ||
| 493 | if (copy_to_user((void *) sp, exec_params->loadmap, len) != 0) | 493 | if (copy_to_user((void __user *) sp, exec_params->loadmap, len) != 0) |
| 494 | return -EFAULT; | 494 | return -EFAULT; |
| 495 | 495 | ||
| 496 | current->mm->context.exec_fdpic_loadmap = (unsigned long) sp; | 496 | current->mm->context.exec_fdpic_loadmap = (unsigned long) sp; |
| @@ -501,7 +501,7 @@ static int create_elf_fdpic_tables(struct linux_binprm *bprm, | |||
| 501 | sp = (sp - len) & ~7UL; | 501 | sp = (sp - len) & ~7UL; |
| 502 | interp_params->map_addr = sp; | 502 | interp_params->map_addr = sp; |
| 503 | 503 | ||
| 504 | if (copy_to_user((void *) sp, interp_params->loadmap, len) != 0) | 504 | if (copy_to_user((void __user *) sp, interp_params->loadmap, len) != 0) |
| 505 | return -EFAULT; | 505 | return -EFAULT; |
| 506 | 506 | ||
| 507 | current->mm->context.interp_fdpic_loadmap = (unsigned long) sp; | 507 | current->mm->context.interp_fdpic_loadmap = (unsigned long) sp; |
| @@ -527,7 +527,7 @@ static int create_elf_fdpic_tables(struct linux_binprm *bprm, | |||
| 527 | /* put the ELF interpreter info on the stack */ | 527 | /* put the ELF interpreter info on the stack */ |
| 528 | #define NEW_AUX_ENT(nr, id, val) \ | 528 | #define NEW_AUX_ENT(nr, id, val) \ |
| 529 | do { \ | 529 | do { \ |
| 530 | struct { unsigned long _id, _val; } *ent = (void *) csp; \ | 530 | struct { unsigned long _id, _val; } __user *ent = (void __user *) csp; \ |
| 531 | __put_user((id), &ent[nr]._id); \ | 531 | __put_user((id), &ent[nr]._id); \ |
| 532 | __put_user((val), &ent[nr]._val); \ | 532 | __put_user((val), &ent[nr]._val); \ |
| 533 | } while (0) | 533 | } while (0) |
| @@ -564,13 +564,13 @@ static int create_elf_fdpic_tables(struct linux_binprm *bprm, | |||
| 564 | 564 | ||
| 565 | /* allocate room for argv[] and envv[] */ | 565 | /* allocate room for argv[] and envv[] */ |
| 566 | csp -= (bprm->envc + 1) * sizeof(elf_caddr_t); | 566 | csp -= (bprm->envc + 1) * sizeof(elf_caddr_t); |
| 567 | envp = (elf_caddr_t *) csp; | 567 | envp = (elf_caddr_t __user *) csp; |
| 568 | csp -= (bprm->argc + 1) * sizeof(elf_caddr_t); | 568 | csp -= (bprm->argc + 1) * sizeof(elf_caddr_t); |
| 569 | argv = (elf_caddr_t *) csp; | 569 | argv = (elf_caddr_t __user *) csp; |
| 570 | 570 | ||
| 571 | /* stack argc */ | 571 | /* stack argc */ |
| 572 | csp -= sizeof(unsigned long); | 572 | csp -= sizeof(unsigned long); |
| 573 | __put_user(bprm->argc, (unsigned long *) csp); | 573 | __put_user(bprm->argc, (unsigned long __user *) csp); |
| 574 | 574 | ||
| 575 | BUG_ON(csp != sp); | 575 | BUG_ON(csp != sp); |
| 576 | 576 | ||
| @@ -581,7 +581,7 @@ static int create_elf_fdpic_tables(struct linux_binprm *bprm, | |||
| 581 | current->mm->arg_start = current->mm->start_stack - (MAX_ARG_PAGES * PAGE_SIZE - bprm->p); | 581 | current->mm->arg_start = current->mm->start_stack - (MAX_ARG_PAGES * PAGE_SIZE - bprm->p); |
| 582 | #endif | 582 | #endif |
| 583 | 583 | ||
| 584 | p = (char *) current->mm->arg_start; | 584 | p = (char __user *) current->mm->arg_start; |
| 585 | for (loop = bprm->argc; loop > 0; loop--) { | 585 | for (loop = bprm->argc; loop > 0; loop--) { |
| 586 | __put_user((elf_caddr_t) p, argv++); | 586 | __put_user((elf_caddr_t) p, argv++); |
| 587 | len = strnlen_user(p, PAGE_SIZE * MAX_ARG_PAGES); | 587 | len = strnlen_user(p, PAGE_SIZE * MAX_ARG_PAGES); |
| @@ -1025,7 +1025,7 @@ static int elf_fdpic_map_file_by_direct_mmap(struct elf_fdpic_params *params, | |||
| 1025 | /* clear the bit between beginning of mapping and beginning of PT_LOAD */ | 1025 | /* clear the bit between beginning of mapping and beginning of PT_LOAD */ |
| 1026 | if (prot & PROT_WRITE && disp > 0) { | 1026 | if (prot & PROT_WRITE && disp > 0) { |
| 1027 | kdebug("clear[%d] ad=%lx sz=%lx", loop, maddr, disp); | 1027 | kdebug("clear[%d] ad=%lx sz=%lx", loop, maddr, disp); |
| 1028 | clear_user((void *) maddr, disp); | 1028 | clear_user((void __user *) maddr, disp); |
| 1029 | maddr += disp; | 1029 | maddr += disp; |
| 1030 | } | 1030 | } |
| 1031 | 1031 | ||
| @@ -1059,7 +1059,7 @@ static int elf_fdpic_map_file_by_direct_mmap(struct elf_fdpic_params *params, | |||
| 1059 | if (prot & PROT_WRITE && excess1 > 0) { | 1059 | if (prot & PROT_WRITE && excess1 > 0) { |
| 1060 | kdebug("clear[%d] ad=%lx sz=%lx", | 1060 | kdebug("clear[%d] ad=%lx sz=%lx", |
| 1061 | loop, maddr + phdr->p_filesz, excess1); | 1061 | loop, maddr + phdr->p_filesz, excess1); |
| 1062 | clear_user((void *) maddr + phdr->p_filesz, excess1); | 1062 | clear_user((void __user *) maddr + phdr->p_filesz, excess1); |
| 1063 | } | 1063 | } |
| 1064 | 1064 | ||
| 1065 | #else | 1065 | #else |
