From: Edward AD <eadavis@sina.com>
To: syzbot+b591856e0f0139f83023@syzkaller.appspotmail.com
Cc: akpm@linux-foundation.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, syzkaller-bugs@googlegroups.com
Subject: [PATCH] mm: as the same logic with queue_pages_range
Date: Wed, 6 Sep 2023 14:19:02 +0800 [thread overview]
Message-ID: <20230906061902.591996-1-eadavis@sina.com> (raw)
In-Reply-To: <000000000000f392a60604a65085@google.com>
Only dealwith queue_pages_range locked vmas.
Signed-off-by: Edward AD <eadavis@sina.com>
---
mm/mempolicy.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 42b5567e3773..13050b968479 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -1342,6 +1342,8 @@ static long do_mbind(unsigned long start, unsigned long len,
vma_iter_init(&vmi, mm, start);
prev = vma_prev(&vmi);
for_each_vma_range(vmi, vma, end) {
+ if (!vma || start < vma->vm_start)
+ continue;
err = mbind_range(&vmi, vma, &prev, start, end, new);
if (err)
break;
--
2.25.1
next prev parent reply other threads:[~2023-09-06 6:19 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-06 1:03 [syzbot] [mm?] kernel BUG in vma_replace_policy syzbot
2023-09-06 6:19 ` Edward AD [this message]
2023-09-06 12:06 ` [PATCH] mm: as the same logic with queue_pages_range Matthew Wilcox
2023-09-12 5:20 ` kernel test robot
2023-09-12 5:20 ` [LTP] " kernel test robot
2023-09-13 9:10 ` Cyril Hrubis
2023-09-13 9:10 ` Cyril Hrubis
2023-09-14 5:53 ` [PATCH] mm: extpand queue_pages_range() to find and lock the vma range Edward AD
2023-09-14 5:53 ` [LTP] " Edward AD
2023-09-08 18:04 ` [syzbot] [mm?] kernel BUG in vma_replace_policy syzbot
2023-09-08 18:04 ` syzbot
2023-09-08 18:04 ` syzbot
2023-09-12 5:30 ` Matthew Wilcox
2023-09-12 6:09 ` syzbot
2023-09-12 14:55 ` Matthew Wilcox
2023-09-12 15:03 ` Suren Baghdasaryan
2023-09-12 16:00 ` Suren Baghdasaryan
2023-09-13 16:05 ` Suren Baghdasaryan
2023-09-13 16:46 ` Suren Baghdasaryan
2023-09-14 18:20 ` Suren Baghdasaryan
2023-09-14 19:09 ` Matthew Wilcox
2023-09-14 20:00 ` Suren Baghdasaryan
2023-09-14 20:53 ` Suren Baghdasaryan
2023-09-14 21:24 ` Matthew Wilcox
2023-09-14 22:21 ` Suren Baghdasaryan
2023-09-15 4:26 ` Hugh Dickins
2023-09-15 16:09 ` Suren Baghdasaryan
2023-09-15 18:05 ` Suren Baghdasaryan
2023-09-16 2:43 ` Hugh Dickins
2023-09-18 21:20 ` Suren Baghdasaryan
2023-09-15 18:26 ` Matthew Wilcox
2023-09-16 2:54 ` Hugh Dickins
2023-09-16 1:35 ` Yang Shi
2023-09-16 3:57 ` Hugh Dickins
2023-09-18 22:34 ` Yang Shi
2023-09-19 0:34 ` Hugh Dickins
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