diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/exec.c | 8 | ||||
| -rw-r--r-- | fs/proc/task_mmu.c | 14 |
2 files changed, 20 insertions, 2 deletions
diff --git a/fs/exec.c b/fs/exec.c index 9bdf0edf570d..c4010b8207a1 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -199,8 +199,12 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos, return NULL; } #endif - ret = get_user_pages(current, bprm->mm, pos, - 1, write, 1, &page, NULL); + /* + * We are doing an exec(). 'current' is the process + * doing the exec and bprm->mm is the new process's mm. + */ + ret = get_user_pages_remote(current, bprm->mm, pos, 1, write, + 1, &page, NULL); if (ret <= 0) return NULL; diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index fa95ab2d3674..9df431642042 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -660,11 +660,20 @@ static void show_smap_vma_flags(struct seq_file *m, struct vm_area_struct *vma) [ilog2(VM_MERGEABLE)] = "mg", [ilog2(VM_UFFD_MISSING)]= "um", [ilog2(VM_UFFD_WP)] = "uw", +#ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS + /* These come out via ProtectionKey: */ + [ilog2(VM_PKEY_BIT0)] = "", + [ilog2(VM_PKEY_BIT1)] = "", + [ilog2(VM_PKEY_BIT2)] = "", + [ilog2(VM_PKEY_BIT3)] = "", +#endif }; size_t i; seq_puts(m, "VmFlags: "); for (i = 0; i < BITS_PER_LONG; i++) { + if (!mnemonics[i][0]) + continue; if (vma->vm_flags & (1UL << i)) { seq_printf(m, "%c%c ", mnemonics[i][0], mnemonics[i][1]); @@ -702,6 +711,10 @@ static int smaps_hugetlb_range(pte_t *pte, unsigned long hmask, } #endif /* HUGETLB_PAGE */ +void __weak arch_show_smap(struct seq_file *m, struct vm_area_struct *vma) +{ +} + static int show_smap(struct seq_file *m, void *v, int is_pid) { struct vm_area_struct *vma = v; @@ -783,6 +796,7 @@ static int show_smap(struct seq_file *m, void *v, int is_pid) (vma->vm_flags & VM_LOCKED) ? (unsigned long)(mss.pss >> (10 + PSS_SHIFT)) : 0); + arch_show_smap(m, vma); show_smap_vma_flags(m, vma); m_cache_vma(m, vma); return 0; |