漏洞标题
蓝牙: RFCOMM: 修复未验证setsockopt用户输入
漏洞描述信息
在Linux内核中,已修复以下漏洞:
蓝牙:RFCOMM:修复未验证setsockopt用户输入
syzbot报告rfcomm_sock_setsockopt_old()在没有检查用户输入长度的情况下复制数据。
BUG:KASAN:在copy_from_sockptr_offset的slab越界,include/linux/sockptr.h:49 [内联]
BUG:KASAN:在copy_from_sockptr的slab越界,include/linux/sockptr.h:55 [内联]
BUG:KASAN:在rfcomm_sock_setsockopt_old的slab越界,net/bluetooth/rfcomm/sock.c:632 [内联]
BUG:KASAN:在rfcomm_sock_setsockopt+0x893/0xa70的slab越界,net/bluetooth/rfcomm/sock.c:673
在任务syz-executor632/5064中以大小4在地址 ffff8880209a8bc3读取。
CVSS信息
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
漏洞类别
跨界内存写
漏洞标题
Bluetooth: RFCOMM: Fix not validating setsockopt user input
漏洞描述信息
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: RFCOMM: Fix not validating setsockopt user input
syzbot reported rfcomm_sock_setsockopt_old() is copying data without
checking user input length.
BUG: KASAN: slab-out-of-bounds in copy_from_sockptr_offset
include/linux/sockptr.h:49 [inline]
BUG: KASAN: slab-out-of-bounds in copy_from_sockptr
include/linux/sockptr.h:55 [inline]
BUG: KASAN: slab-out-of-bounds in rfcomm_sock_setsockopt_old
net/bluetooth/rfcomm/sock.c:632 [inline]
BUG: KASAN: slab-out-of-bounds in rfcomm_sock_setsockopt+0x893/0xa70
net/bluetooth/rfcomm/sock.c:673
Read of size 4 at addr ffff8880209a8bc3 by task syz-executor632/5064
CVSS信息
N/A
漏洞类别
N/A
漏洞标题
Linux kernel 安全漏洞
漏洞描述信息
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞,该漏洞源于不验证用户输入。
CVSS信息
N/A
漏洞类别
其他