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From: Edward Adam Davis <eadavis@qq.com>
To: syzbot+33f23b49ac24f986c9e8@syzkaller.appspotmail.com
Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [btrfs?] KASAN: slab-out-of-bounds Read in getname_kernel (2)
Date: Tue, 16 Jan 2024 07:58:47 +0800	[thread overview]
Message-ID: <tencent_6C6006C093630366C97083A2C44897777705@qq.com> (raw)
In-Reply-To: <000000000000d1a1d1060cc9c5e7@google.com>

please test slab-out-of-bounds Read in getname_kernel

#syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 3bd7d7488169

diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c
index 1502d664c892..7a1d3c7a895b 100644
--- a/fs/btrfs/dev-replace.c
+++ b/fs/btrfs/dev-replace.c
@@ -741,6 +741,7 @@ int btrfs_dev_replace_by_ioctl(struct btrfs_fs_info *fs_info,
 	if ((args->start.srcdevid == 0 && args->start.srcdev_name[0] == '\0') ||
 	    args->start.tgtdev_name[0] == '\0')
 		return -EINVAL;
+	args->start.tgtdev_name[BTRFS_PATH_NAME_MAX] = '\0';
 
 	ret = btrfs_dev_replace_start(fs_info, args->start.tgtdev_name,
 					args->start.srcdevid,


  parent reply	other threads:[~2024-01-15 23:58 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-12-18 14:43 syzbot
2023-12-19  2:44 ` Edward Adam Davis
2023-12-19  2:50   ` syzbot
2023-12-19  3:06 ` Edward Adam Davis
2023-12-19  3:25   ` syzbot
2023-12-19  4:05 ` Edward Adam Davis
2023-12-19  4:38   ` syzbot
2023-12-19  4:59 ` Edward Adam Davis
2023-12-19  7:38   ` syzbot
2023-12-19  8:23 ` Edward Adam Davis
2023-12-19  8:35   ` syzbot
2023-12-19  8:27 ` Edward Adam Davis
2023-12-19  8:46   ` syzbot
2023-12-19  9:26 ` Edward Adam Davis
2023-12-19  9:39   ` syzbot
2023-12-19  9:46 ` Edward Adam Davis
2023-12-19 10:04   ` syzbot
2023-12-19 10:19 ` [PATCH] btrfs: fix oob Read in getname_kernel Edward Adam Davis
2024-01-10 15:55   ` David Sterba
2024-01-15 19:08     ` David Sterba
2024-01-16  1:09       ` [syzbot] [btrfs?] KASAN: slab-out-of-bounds Read in getname_kernel (2) Edward Adam Davis
2024-01-17 20:08         ` David Sterba
2024-01-31 18:43         ` David Sterba
2024-01-15 23:32 ` Edward Adam Davis
2024-01-15 23:47   ` syzbot
2024-01-15 23:58 ` Edward Adam Davis [this message]
2024-01-16  0:15   ` syzbot
2024-01-16  0:46 ` Edward Adam Davis
2024-01-16  1:06   ` syzbot

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