CVE-2023-54262— Linux kernel 安全漏洞
一分钟漏洞结论
影响对象
Linux Linux
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
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net/mlx5e中重复克隆流后操作属性，可能导致释放后重用。
可能的 ATT&CK 技术 1 AI
T1562影响版本矩阵 10
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | 8300f225268be9ee2c0daf5a3f23929fcdcbf213< c382b693ffcb1f1ebf60d76ab9dedfe9ea13eedf |
affected |
8300f225268be9ee2c0daf5a3f23929fcdcbf213< 8fd1dac646e6b08d03e3f1ad3c5b34255b1e08e8 |
affected | ||
8300f225268be9ee2c0daf5a3f23929fcdcbf213< 2d57a514f9ab7d2d40f49b02d93edfcec8c78a9e |
affected | ||
8300f225268be9ee2c0daf5a3f23929fcdcbf213< e9fce818fe003b6c527f25517b9ac08eb4661b5d |
affected | ||
5.18 |
affected | ||
< 5.18 |
unaffected | ||
6.1.28≤ 6.1.* |
unaffected | ||
6.2.15≤ 6.2.* |
unaffected | ||
| … +2 条更多 | |||
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一、 漏洞 CVE-2023-54262 基础信息
漏洞信息
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Vulnerability Title
net/mlx5e: Don't clone flow post action attributes second time
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
net/mlx5e: Don't clone flow post action attributes second time
The code already clones post action attributes in
mlx5e_clone_flow_attr_for_post_act(). Creating another copy in
mlx5e_tc_post_act_add() is a erroneous leftover from original
implementation. Instead, assign handle->attribute to post_attr provided by
the caller. Note that cloning the attribute second time is not just
wasteful but also causes issues like second copy not being properly updated
in neigh update code which leads to following use-after-free:
Feb 21 09:02:00 c-237-177-40-045 kernel: BUG: KASAN: use-after-free in mlx5_cmd_set_fte+0x200d/0x24c0 [mlx5_core]
Feb 21 09:02:00 c-237-177-40-045 kernel: kasan_report+0xbb/0x1a0
Feb 21 09:02:00 c-237-177-40-045 kernel: kasan_save_stack+0x1e/0x40
Feb 21 09:02:00 c-237-177-40-045 kernel: kasan_set_track+0x21/0x30
Feb 21 09:02:00 c-237-177-40-045 kernel: __kasan_kmalloc+0x7a/0x90
Feb 21 09:02:00 c-237-177-40-045 kernel: kasan_save_stack+0x1e/0x40
Feb 21 09:02:00 c-237-177-40-045 kernel: kasan_set_track+0x21/0x30
Feb 21 09:02:00 c-237-177-40-045 kernel: kasan_save_free_info+0x2a/0x40
Feb 21 09:02:00 c-237-177-40-045 kernel: ____kasan_slab_free+0x11a/0x1b0
Feb 21 09:02:00 c-237-177-40-045 kernel: page dumped because: kasan: bad access detected
Feb 21 09:02:00 c-237-177-40-045 kernel: mlx5_core 0000:08:00.0: mlx5_cmd_out_err:803:(pid 8833): SET_FLOW_TABLE_ENTRY(0x936) op_mod(0x0) failed, status bad resource state(0x9), syndrome (0xf2ff71), err(-22)
Feb 21 09:02:00 c-237-177-40-045 kernel: mlx5_core 0000:08:00.0 enp8s0f0: Failed to add post action rule
Feb 21 09:02:00 c-237-177-40-045 kernel: mlx5_core 0000:08:00.0: mlx5e_tc_encap_flows_add:190:(pid 8833): Failed to update flow post acts, -22
Feb 21 09:02:00 c-237-177-40-045 kernel: Call Trace:
Feb 21 09:02:00 c-237-177-40-045 kernel: <TASK>
Feb 21 09:02:00 c-237-177-40-045 kernel: dump_stack_lvl+0x57/0x7d
Feb 21 09:02:00 c-237-177-40-045 kernel: print_report+0x170/0x471
Feb 21 09:02:00 c-237-177-40-045 kernel: ? mlx5_cmd_set_fte+0x200d/0x24c0 [mlx5_core]
Feb 21 09:02:00 c-237-177-40-045 kernel: kasan_report+0xbb/0x1a0
Feb 21 09:02:00 c-237-177-40-045 kernel: ? mlx5_cmd_set_fte+0x200d/0x24c0 [mlx5_core]
Feb 21 09:02:00 c-237-177-40-045 kernel: mlx5_cmd_set_fte+0x200d/0x24c0 [mlx5_core]
Feb 21 09:02:00 c-237-177-40-045 kernel: ? __module_address.part.0+0x62/0x200
Feb 21 09:02:00 c-237-177-40-045 kernel: ? mlx5_cmd_stub_create_flow_table+0xd0/0xd0 [mlx5_core]
Feb 21 09:02:00 c-237-177-40-045 kernel: ? __raw_spin_lock_init+0x3b/0x110
Feb 21 09:02:00 c-237-177-40-045 kernel: mlx5_cmd_create_fte+0x80/0xb0 [mlx5_core]
Feb 21 09:02:00 c-237-177-40-045 kernel: add_rule_fg+0xe80/0x19c0 [mlx5_core]
--
Feb 21 09:02:00 c-237-177-40-045 kernel: Allocated by task 13476:
Feb 21 09:02:00 c-237-177-40-045 kernel: kasan_save_stack+0x1e/0x40
Feb 21 09:02:00 c-237-177-40-045 kernel: kasan_set_track+0x21/0x30
Feb 21 09:02:00 c-237-177-40-045 kernel: __kasan_kmalloc+0x7a/0x90
Feb 21 09:02:00 c-237-177-40-045 kernel: mlx5_packet_reformat_alloc+0x7b/0x230 [mlx5_core]
Feb 21 09:02:00 c-237-177-40-045 kernel: mlx5e_tc_tun_create_header_ipv4+0x977/0xf10 [mlx5_core]
Feb 21 09:02:00 c-237-177-40-045 kernel: mlx5e_attach_encap+0x15b4/0x1e10 [mlx5_core]
Feb 21 09:02:00 c-237-177-40-045 kernel: post_process_attr+0x305/0xa30 [mlx5_core]
Feb 21 09:02:00 c-237-177-40-045 kernel: mlx5e_tc_add_fdb_flow+0x4c0/0xcf0 [mlx5_core]
Feb 21 09:02:00 c-237-177-40-045 kernel: __mlx5e_add_fdb_flow+0x7cf/0xe90 [mlx5_core]
Feb 21 09:02:00 c-237-177-40-045 kernel: mlx5e_configure_flower+0xcaa/0x4b90 [mlx5_core]
Feb 21 09:02:00 c-237-177-40-045 kernel: mlx5e_rep_setup_tc_cls_flower+0x99/0x1b0 [mlx5_core]
Feb 21 09:02:00 c-237-177-40-045 kernel: mlx5e_rep_setup_tc_cb+0x133/0x1e0 [mlx5_core]
--
Feb 21 09:02:00 c-237-177-40-045 kernel: Freed by task 8833:
Feb 21 09:02:00 c-237-177-40-045 kernel: kasan_save_s
---truncated---
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
N/A
来源: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
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net/mlx5e中重复克隆流后操作属性，可能导致释放后重用。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
二、漏洞 CVE-2023-54262 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2023-54262 其他参考 (4)
同批安全公告 · Linux · 2025-12-30 · 共 244 条
| CVE-2023-54184 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2023-54223 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2023-54237 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2023-54257 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2023-54258 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2023-54269 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2023-54280 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2023-54292 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2023-54203 | 9.1 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2022-50880 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-54214 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-54162 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-54318 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-54250 | 8.2 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-54164 | 8.0 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-54206 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-54202 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-54210 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-54243 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-54216 | 7.8 HIGH | Linux kernel 安全漏洞 |
显示前 20 条，共 244 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2023-54262
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