diff options
Diffstat (limited to 'fs/exec.c')
| -rw-r--r-- | fs/exec.c | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/fs/exec.c b/fs/exec.c index 18c45cac368f..a96a4885bbbf 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -123,7 +123,7 @@ SYSCALL_DEFINE1(uselib, const char __user *, library) goto out; error = -EINVAL; - if (!S_ISREG(file->f_path.dentry->d_inode->i_mode)) + if (!S_ISREG(file_inode(file)->i_mode)) goto exit; error = -EACCES; @@ -355,7 +355,7 @@ static bool valid_arg_len(struct linux_binprm *bprm, long len) * flags, permissions, and offset, so we use temporary values. We'll update * them later in setup_arg_pages(). */ -int bprm_mm_init(struct linux_binprm *bprm) +static int bprm_mm_init(struct linux_binprm *bprm) { int err; struct mm_struct *mm = NULL; @@ -434,8 +434,9 @@ static int count(struct user_arg_ptr argv, int max) if (IS_ERR(p)) return -EFAULT; - if (i++ >= max) + if (i >= max) return -E2BIG; + ++i; if (fatal_signal_pending(current)) return -ERESTARTNOHAND; @@ -763,7 +764,7 @@ struct file *open_exec(const char *name) goto out; err = -EACCES; - if (!S_ISREG(file->f_path.dentry->d_inode->i_mode)) + if (!S_ISREG(file_inode(file)->i_mode)) goto exit; if (file->f_path.mnt->mnt_flags & MNT_NOEXEC) @@ -1097,7 +1098,7 @@ EXPORT_SYMBOL(flush_old_exec); void would_dump(struct linux_binprm *bprm, struct file *file) { - if (inode_permission(file->f_path.dentry->d_inode, MAY_READ) < 0) + if (inode_permission(file_inode(file), MAY_READ) < 0) bprm->interp_flags |= BINPRM_FLAGS_ENFORCE_NONDUMP; } EXPORT_SYMBOL(would_dump); @@ -1110,7 +1111,7 @@ void setup_new_exec(struct linux_binprm * bprm) current->sas_ss_sp = current->sas_ss_size = 0; if (uid_eq(current_euid(), current_uid()) && gid_eq(current_egid(), current_gid())) - set_dumpable(current->mm, SUID_DUMPABLE_ENABLED); + set_dumpable(current->mm, SUID_DUMP_USER); else set_dumpable(current->mm, suid_dumpable); @@ -1269,7 +1270,7 @@ static int check_unsafe_exec(struct linux_binprm *bprm) int prepare_binprm(struct linux_binprm *bprm) { umode_t mode; - struct inode * inode = bprm->file->f_path.dentry->d_inode; + struct inode * inode = file_inode(bprm->file); int retval; mode = inode->i_mode; @@ -1638,17 +1639,17 @@ EXPORT_SYMBOL(set_binfmt); void set_dumpable(struct mm_struct *mm, int value) { switch (value) { - case SUID_DUMPABLE_DISABLED: + case SUID_DUMP_DISABLE: clear_bit(MMF_DUMPABLE, &mm->flags); smp_wmb(); clear_bit(MMF_DUMP_SECURELY, &mm->flags); break; - case SUID_DUMPABLE_ENABLED: + case SUID_DUMP_USER: set_bit(MMF_DUMPABLE, &mm->flags); smp_wmb(); clear_bit(MMF_DUMP_SECURELY, &mm->flags); break; - case SUID_DUMPABLE_SAFE: + case SUID_DUMP_ROOT: set_bit(MMF_DUMP_SECURELY, &mm->flags); smp_wmb(); set_bit(MMF_DUMPABLE, &mm->flags); @@ -1661,7 +1662,7 @@ int __get_dumpable(unsigned long mm_flags) int ret; ret = mm_flags & MMF_DUMPABLE_MASK; - return (ret > SUID_DUMPABLE_ENABLED) ? SUID_DUMPABLE_SAFE : ret; + return (ret > SUID_DUMP_USER) ? SUID_DUMP_ROOT : ret; } int get_dumpable(struct mm_struct *mm) |