漏洞标题
NFC：修复nfc_genl_dump_devices_done中的段错误
漏洞描述信息
在Linux内核中，已修复以下漏洞：
nfc：修复nfc_genl_dump_devices_done中的段错误
在nfc_genl_dump_devices()的kmalloc失败时，
nfc_genl_dump_devices_done()会触发以下段错误：
KASAN: range [0x0000000000000008-0x000000000000000f]的null-ptr-deref
CPU: 0 PID: 25 Comm: kworker/0:1 不带污点的5.16.0-rc4-01180-g2a987e65025e-dirty #5
硬件名称：QEMU Standard PC (i440FX + PIIX, 1996)，BIOS 1.14.0-6.fc35 2014年4月1日
工作队列：events netlink_sock_destruct_work
RIP: 0010:klist_iter_exit+0x26/0x80
调用堆栈：
<TASK>
class_dev_iter_exit+0x15/0x20
nfc_genl_dump_devices_done+0x3b/0x50
genl_lock_done+0x84/0xd0
netlink_sock_destruct+0x8f/0x270
__sk_destruct+0x64/0x3b0
sk_destruct+0xa8/0xd0
__sk_free+0x2e8/0x3d0
sk_free+0x51/0x90
netlink_sock_destruct_work+0x1c/0x20
process_one_work+0x411/0x710
worker_thread+0x6fd/0xa80
CVSS信息
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
漏洞类别
空指针解引用
漏洞标题
nfc: fix segfault in nfc_genl_dump_devices_done
漏洞描述信息
In the Linux kernel, the following vulnerability has been resolved:
nfc: fix segfault in nfc_genl_dump_devices_done
When kmalloc in nfc_genl_dump_devices() fails then
nfc_genl_dump_devices_done() segfaults as below
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 0 PID: 25 Comm: kworker/0:1 Not tainted 5.16.0-rc4-01180-g2a987e65025e-dirty #5
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-6.fc35 04/01/2014
Workqueue: events netlink_sock_destruct_work
RIP: 0010:klist_iter_exit+0x26/0x80
Call Trace:
<TASK>
class_dev_iter_exit+0x15/0x20
nfc_genl_dump_devices_done+0x3b/0x50
genl_lock_done+0x84/0xd0
netlink_sock_destruct+0x8f/0x270
__sk_destruct+0x64/0x3b0
sk_destruct+0xa8/0xd0
__sk_free+0x2e8/0x3d0
sk_free+0x51/0x90
netlink_sock_destruct_work+0x1c/0x20
process_one_work+0x411/0x710
worker_thread+0x6fd/0xa80
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，该漏洞源于空指针取消引用。
CVSS信息
N/A
漏洞类别
其他