The patch titled
get_user_pages(): fix possible page leak on oom
has been added to the -mm tree. Its filename is
get_user_pages-fix-possible-page-leak-on-oom.patch
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------------------------------------------------------
Subject: get_user_pages(): fix possible page leak on oom
From: Oleg Nesterov <oleg@xxxxxxxxxx>
get_user_pages() must not return the error when i != 0. When pages !=
NULL we have i get_page()'ed pages.
Signed-off-by: Oleg Nesterov <oleg@xxxxxxxxxx>
Acked-by: Nick Piggin <npiggin@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memory.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN mm/memory.c~get_user_pages-fix-possible-page-leak-on-oom mm/memory.c
--- a/mm/memory.c~get_user_pages-fix-possible-page-leak-on-oom
+++ a/mm/memory.c
@@ -1151,7 +1151,7 @@ int get_user_pages(struct task_struct *t
* be processed until returning to user space.
*/
if (unlikely(test_tsk_thread_flag(tsk, TIF_MEMDIE)))
- return -ENOMEM;
+ return i ? i : -ENOMEM;
if (write)
foll_flags |= FOLL_WRITE;
_
Patches currently in -mm which might be from oleg@xxxxxxxxxx are
get_user_pages-fix-possible-page-leak-on-oom.patch
introduce-pf_kthread-flag.patch
kill-pf_borrowed_mm-in-favour-of-pf_kthread.patch
coredump-zap_threads-must-skip-kernel-threads.patch
posix-timers-timer_delete-remove-the-bogus-it_process-=-null-check.patch
posix-timers-release_posix_timer-kill-the-bogus-put_task_struct-it_process.patch
signals-collect_signal-remove-the-unneeded-sigismember-check.patch
signals-collect_signal-simplify-the-still_pending-logic.patch
signals-change-collect_signal-to-return-void.patch
__exit_signal-dont-take-rcu-lock.patch
signals-dequeue_signal-dont-check-signal_group_exit-when-setting-signal_stop_dequeued.patch
signals-do_signal_stop-kill-the-signal_unkillable-check.patch
coredump-zap_threads-comments-use-while_each_thread.patch
include-asm-ptraceh-userspace-headers-cleanup.patch
distinct-tgid-tid-i-o-statistics.patch
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