From: syzbot <syzbot+24ac24ff58dc5b0d26b9@syzkaller.appspotmail.com>
To: linux-kernel@vger.kernel.org
Subject: Re: [syzbot] Re: [syzbot] [squashfs?] KMSAN: uninit-value in pick_link
Date: Thu, 01 Aug 2024 18:02:56 -0700 [thread overview]
Message-ID: <0000000000004b4ac4061ea8e39c@google.com> (raw)
In-Reply-To: <000000000000a90e8c061e86a76b@google.com>
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Subject: Re: [syzbot] [squashfs?] KMSAN: uninit-value in pick_link
Author: lizhi.xu@windriver.com
why folio not inited?
#syz test: upstream 2f8c4f506285
diff --git a/fs/squashfs/inode.c b/fs/squashfs/inode.c
index 16bd693d0b3a..3c667939f1d7 100644
--- a/fs/squashfs/inode.c
+++ b/fs/squashfs/inode.c
@@ -394,6 +394,11 @@ int squashfs_read_inode(struct inode *inode, long long ino)
return -EINVAL;
}
+ if ((int)inode->i_size < 0) {
+ ERROR("Wrong i_size %d!\n", inode->i_size);
+ return -EINVAL;
+ }
+
if (xattr_id != SQUASHFS_INVALID_XATTR && msblk->xattr_id_table) {
err = squashfs_xattr_lookup(sb, xattr_id,
&squashfs_i(inode)->xattr_count,
next prev parent reply other threads:[~2024-08-02 1:02 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-31 8:12 [syzbot] [squashfs?] KMSAN: uninit-value in pick_link syzbot
2024-08-01 1:23 ` [syzbot] " syzbot
2024-08-01 2:27 ` [PATCH] filemap: Init the newly allocated folio memory to 0 for the filemap Lizhi Xu
2024-08-01 2:58 ` Al Viro
2024-08-01 5:28 ` Lizhi Xu
2024-08-01 7:10 ` Al Viro
2024-08-01 7:24 ` Al Viro
2024-08-01 8:12 ` Lizhi Xu
2024-08-01 9:13 ` Lizhi Xu
2024-08-01 12:42 ` Al Viro
2024-08-01 15:17 ` [PATCH V2] squashfs: Add length check in squashfs_symlink_read_folio Lizhi Xu
2024-08-01 15:30 ` Jan Kara
2024-08-02 1:39 ` Lizhi Xu
2024-08-02 1:50 ` [PATCH V3] squashfs: Add i_size check in squash_read_inode Lizhi Xu
2024-08-02 3:01 ` [PATCH V4] " Lizhi Xu
2024-08-02 9:33 ` Jan Kara
2024-08-02 11:16 ` [PATCH V5] " Lizhi Xu
2024-08-02 13:52 ` Al Viro
2024-08-02 14:44 ` [PATCH] filemap: Init the newly allocated folio memory to 0 for the filemap Lizhi Xu
2024-08-02 15:03 ` Al Viro
2024-08-03 4:07 ` [PATCH V6] squashfs: Add symlink size check in squash_read_inode Lizhi Xu
2024-08-03 7:43 ` [PATCH V7] " Lizhi Xu
2024-08-04 21:16 ` Phillip Lougher
2024-08-04 21:20 ` Al Viro
2024-08-04 22:31 ` Phillip Lougher
2024-08-05 7:03 ` Christian Brauner
2024-08-05 1:02 ` Lizhi Xu
2024-08-05 1:40 ` Al Viro
2024-08-06 2:56 ` Lizhi Xu
2024-08-06 4:59 ` Al Viro
2024-08-06 6:19 ` Lizhi Xu
2024-08-06 6:58 ` Al Viro
2024-08-01 9:07 ` [syzbot] Re: [syzbot] [squashfs?] KMSAN: uninit-value in pick_link syzbot
2024-08-01 9:27 ` syzbot
2024-08-01 12:08 ` syzbot
2024-08-01 13:06 ` syzbot
2024-08-01 14:08 ` syzbot
2024-08-01 14:39 ` syzbot
2024-08-02 1:02 ` syzbot [this message]
2024-08-02 2:00 ` syzbot
2024-08-03 3:04 ` syzbot
2024-08-03 3:13 ` syzbot
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