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Merge commit 'v2.6.29-rc4' into perfcounters/core

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Conflicts:
	arch/x86/kernel/setup_percpu.c
	arch/x86/mm/fault.c
	drivers/acpi/processor_idle.c
	kernel/irq/handle.c
This commit is contained in:
Ingo Molnar
2009-02-11 09:22:04 +01:00
parent d278c48435 8e4921515c
commit 95fd4845ed
1751 changed files with 32887 additions and 16137 deletions
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28
fs/exec.c
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@ -1057,16 +1057,32 @@ EXPORT_SYMBOL(install_exec_creds);
* - the caller must hold current->cred_exec_mutex to protect against
* PTRACE_ATTACH
*/
void check_unsafe_exec(struct linux_binprm *bprm)
void check_unsafe_exec(struct linux_binprm *bprm, struct files_struct *files)
{
struct task_struct *p = current;
struct task_struct *p = current, *t;
unsigned long flags;
unsigned n_fs, n_files, n_sighand;
bprm->unsafe = tracehook_unsafe_exec(p);
if (atomic_read(&p->fs->count) > 1 ||
atomic_read(&p->files->count) > 1 ||
atomic_read(&p->sighand->count) > 1)
n_fs = 1;
n_files = 1;
n_sighand = 1;
lock_task_sighand(p, &flags);
for (t = next_thread(p); t != p; t = next_thread(t)) {
if (t->fs == p->fs)
n_fs++;
if (t->files == files)
n_files++;
n_sighand++;
}
if (atomic_read(&p->fs->count) > n_fs ||
atomic_read(&p->files->count) > n_files ||
atomic_read(&p->sighand->count) > n_sighand)
bprm->unsafe |= LSM_UNSAFE_SHARE;
unlock_task_sighand(p, &flags);
}
/*
@ -1281,7 +1297,7 @@ int do_execve(char * filename,
bprm->cred = prepare_exec_creds();
if (!bprm->cred)
goto out_unlock;
check_unsafe_exec(bprm);
check_unsafe_exec(bprm, displaced);
file = open_exec(filename);
retval = PTR_ERR(file);