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From: syzbot <syzbot+aa6df9d3b383bf5f047f@syzkaller.appspotmail.com>
To: linux-kernel@vger.kernel.org
Subject: Re: [syzbot] [syzbot] [jfs?] KASAN: slab-out-of-bounds Write in diWrite
Date: Thu, 16 May 2024 19:03:41 -0700	[thread overview]
Message-ID: <000000000000bb6a3706189cc28c@google.com> (raw)
In-Reply-To: <00000000000001ab730616f23768@google.com>

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Subject: [syzbot] [jfs?] KASAN: slab-out-of-bounds Write in diWrite
Author: lizhi.xu@windriver.com

#syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git ed30a4a51bb1

diff --git a/fs/jfs/jfs_imap.c b/fs/jfs/jfs_imap.c
index 2ec35889ad24..d9b302938ed2 100644
--- a/fs/jfs/jfs_imap.c
+++ b/fs/jfs/jfs_imap.c
@@ -747,6 +747,8 @@ int diWrite(tid_t tid, struct inode *ip)
 		xp = (dtpage_t *) & dp->di_dtroot;
 		lv = ilinelock->lv;
 		for (n = 0; n < ilinelock->index; n++, lv++) {
+			printk("lv: %p offset:%d %s\n", lv, lv->offset, __func__);
+			if (lv->offset < DTPAGEMAXSLOT)
 			memcpy(&xp->slot[lv->offset], &p->slot[lv->offset],
 			       lv->length << L2DTSLOTSIZE);
 		}

      parent reply	other threads:[~2024-05-17  2:03 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-25 21:10 [syzbot] [jfs?] KASAN: slab-out-of-bounds Write in diWrite syzbot
2024-05-17  0:53 ` [syzbot] " syzbot
2024-05-17  2:03 ` syzbot [this message]

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