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Oleg Nesterov 704b836cbf mm_for_maps: take ->cred_guard_mutex to fix the race with exec ... The problem is minor, but without ->cred_guard_mutex held we can race with exec() and get the new ->mm but check old creds. Now we do not need to re-check task->mm after ptrace_may_access(), it can't be changed to the new mm under us. Strictly speaking, this also fixes another very minor problem. Unless security check fails or the task exits mm_for_maps() should never return NULL, the caller should get either old or new ->mm. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: James Morris <jmorris@namei.org>		16 years ago
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Kconfig	…
Makefile	proc: export statistics for softirq to /proc	16 years ago
array.c	proc: avoid information leaks to non-privileged processes	16 years ago
base.c	mm_for_maps: take ->cred_guard_mutex to fix the race with exec	16 years ago
cmdline.c	…
cpuinfo.c	…
devices.c	…
generic.c	proc 1/2: do PDE usecounting even for ->read_proc, ->write_proc	16 years ago
inode.c	proc 2/2: remove struct proc_dir_entry::owner	16 years ago
internal.h	Move junk from proc_fs.h to fs/proc/internal.h	16 years ago
interrupts.c	…
kcore.c	…
kmsg.c	…
loadavg.c	sched, timers: cleanup avenrun users	16 years ago
meminfo.c	mm: remove CONFIG_UNEVICTABLE_LRU config option	16 years ago
mmu.c	…
nommu.c	trivial: fix typo "kernal" -> "kernel"	16 years ago
page.c	mm: remove CONFIG_UNEVICTABLE_LRU config option	16 years ago
proc_devtree.c	procfs: remove sparse errors in proc_devtree.c	16 years ago
proc_net.c	proc: stop using BKL	16 years ago
proc_sysctl.c	constify dentry_operations: procfs	16 years ago
proc_tty.c	proc tty: remove struct tty_operations::read_proc	16 years ago
root.c	Convert obvious places to deactivate_locked_super()	16 years ago
softirqs.c	proc: export statistics for softirq to /proc	16 years ago
stat.c	proc: export statistics for softirq to /proc	16 years ago
task_mmu.c	mm_for_maps: shift down_read(mmap_sem) to the caller	16 years ago
task_nommu.c	mm_for_maps: shift down_read(mmap_sem) to the caller	16 years ago
uptime.c	Revert "proc: revert /proc/uptime to ->read_proc hook"	16 years ago
version.c	…
vmcore.c	proc: vmcore - use kzalloc in get_new_element()	16 years ago