net: mscc: ocelot: fix incorrect IFH SRC_PORT field in ocelot_ifh_set_basic() 漏洞信息(CVE-2024-56717)

一、漏洞 CVE-2024-56717 基础信息

漏洞标题

net：mscc：ocelot：修正 ocelot_ifh_set_basic() 中的 IFH SRC_PORT 字段错误

来源：AIGC 神龙大模型

漏洞描述信息

N/A

来源：AIGC 神龙大模型

CVSS信息

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

来源：AIGC 神龙大模型

漏洞类别

内存缓冲区边界内操作的限制不恰当

来源：AIGC 神龙大模型

漏洞标题

net: mscc: ocelot: fix incorrect IFH SRC_PORT field in ocelot_ifh_set_basic()

来源：美国国家漏洞数据库 NVD

漏洞描述信息

In the Linux kernel, the following vulnerability has been resolved: net: mscc: ocelot: fix incorrect IFH SRC_PORT field in ocelot_ifh_set_basic() Packets injected by the CPU should have a SRC_PORT field equal to the CPU port module index in the Analyzer block (ocelot->num_phys_ports). The blamed commit copied the ocelot_ifh_set_basic() call incorrectly from ocelot_xmit_common() in net/dsa/tag_ocelot.c. Instead of calling with "x", it calls with BIT_ULL(x), but the field is not a port mask, but rather a single port index. [ side note: this is the technical debt of code duplication :( ] The error used to be silent and doesn't appear to have other user-visible manifestations, but with new changes in the packing library, it now fails loudly as follows: ------------[ cut here ]------------ Cannot store 0x40 inside bits 46-43 - will truncate sja1105 spi2.0: xmit timed out WARNING: CPU: 1 PID: 102 at lib/packing.c:98 __pack+0x90/0x198 sja1105 spi2.0: timed out polling for tstamp CPU: 1 UID: 0 PID: 102 Comm: felix_xmit Tainted: G W N 6.13.0-rc1-00372-gf706b85d972d-dirty #2605 Call trace: __pack+0x90/0x198 (P) __pack+0x90/0x198 (L) packing+0x78/0x98 ocelot_ifh_set_basic+0x260/0x368 ocelot_port_inject_frame+0xa8/0x250 felix_port_deferred_xmit+0x14c/0x258 kthread_worker_fn+0x134/0x350 kthread+0x114/0x138 The code path pertains to the ocelot switchdev driver and to the felix secondary DSA tag protocol, ocelot-8021q. Here seen with ocelot-8021q. The messenger (packing) is not really to blame, so fix the original commit instead.

来源：美国国家漏洞数据库 NVD

CVSS信息

N/A

来源：美国国家漏洞数据库 NVD

漏洞类别

N/A

来源：美国国家漏洞数据库 NVD

漏洞标题

Linux kernel 安全漏洞

来源：中国国家信息安全漏洞库 CNNVD

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scsi:hisi_sas模块中未正确处理聚合ID，可能导致内核崩溃。

来源：中国国家信息安全漏洞库 CNNVD

CVSS信息

N/A

来源：中国国家信息安全漏洞库 CNNVD

漏洞类别

其他

来源：中国国家信息安全漏洞库 CNNVD

二、漏洞 CVE-2024-56717 的公开POC

#	POC 描述	源链接	神龙链接

三、漏洞 CVE-2024-56717 的情报信息

标题： net: mscc: ocelot: fix incorrect IFH SRC_PORT field in ocelot_ifh_set_basic() - kernel/git/stable/linux.git - Linux kernel stable tree -- 🔗来源链接

标签：
标题： net: mscc: ocelot: fix incorrect IFH SRC_PORT field in ocelot_ifh_set_basic() - kernel/git/stable/linux.git - Linux kernel stable tree -- 🔗来源链接

标签：
标题： net: mscc: ocelot: fix incorrect IFH SRC_PORT field in ocelot_ifh_set_basic() - kernel/git/stable/linux.git - Linux kernel stable tree -- 🔗来源链接

标签：
标题： net: mscc: ocelot: fix incorrect IFH SRC_PORT field in ocelot_ifh_set_basic() - kernel/git/stable/linux.git - Linux kernel stable tree -- 🔗来源链接

标签：
https://nvd.nist.gov/vuln/detail/CVE-2024-56717