CVE-2023-53070— 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，该漏洞源于在原子上下文中处理PPTT表时可能导致睡眠。
可能的 ATT&CK 技术 1 AI
T1203 · Exploitation for Client Execution影响版本矩阵 10
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | 0c80f9e165f8f9cca743d7b6cbdb54362da297e0< 1318a07706bb2f8c65f88f39a16c2b5260bcdcd4 |
affected |
0c80f9e165f8f9cca743d7b6cbdb54362da297e0< e0c1106d51b9abc8eae03c5522b20649b6a55f6e |
affected | ||
0c80f9e165f8f9cca743d7b6cbdb54362da297e0< 91d7b60a65d9f71230ea09b86d2058a884a3c2af |
affected | ||
f03d253ba71994b196f342a7acad448a56812a8c |
affected | ||
5.19.4< 5.20 |
affected | ||
6.0 |
affected | ||
< 6.0 |
unaffected | ||
6.1.21≤ 6.1.* |
unaffected | ||
| … +2 条更多 | |||
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一、 漏洞 CVE-2023-53070 基础信息
漏洞信息
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Vulnerability Title
ACPI: PPTT: Fix to avoid sleep in the atomic context when PPTT is absent
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
ACPI: PPTT: Fix to avoid sleep in the atomic context when PPTT is absent
Commit 0c80f9e165f8 ("ACPI: PPTT: Leave the table mapped for the runtime usage")
enabled to map PPTT once on the first invocation of acpi_get_pptt() and
never unmapped the same allowing it to be used at runtime with out the
hassle of mapping and unmapping the table. This was needed to fetch LLC
information from the PPTT in the cpuhotplug path which is executed in
the atomic context as the acpi_get_table() might sleep waiting for a
mutex.
However it missed to handle the case when there is no PPTT on the system
which results in acpi_get_pptt() being called from all the secondary
CPUs attempting to fetch the LLC information in the atomic context
without knowing the absence of PPTT resulting in the splat like below:
| BUG: sleeping function called from invalid context at kernel/locking/semaphore.c:164
| in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 0, name: swapper/1
| preempt_count: 1, expected: 0
| RCU nest depth: 0, expected: 0
| no locks held by swapper/1/0.
| irq event stamp: 0
| hardirqs last enabled at (0): 0x0
| hardirqs last disabled at (0): copy_process+0x61c/0x1b40
| softirqs last enabled at (0): copy_process+0x61c/0x1b40
| softirqs last disabled at (0): 0x0
| CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.3.0-rc1 #1
| Call trace:
| dump_backtrace+0xac/0x138
| show_stack+0x30/0x48
| dump_stack_lvl+0x60/0xb0
| dump_stack+0x18/0x28
| __might_resched+0x160/0x270
| __might_sleep+0x58/0xb0
| down_timeout+0x34/0x98
| acpi_os_wait_semaphore+0x7c/0xc0
| acpi_ut_acquire_mutex+0x58/0x108
| acpi_get_table+0x40/0xe8
| acpi_get_pptt+0x48/0xa0
| acpi_get_cache_info+0x38/0x140
| init_cache_level+0xf4/0x118
| detect_cache_attributes+0x2e4/0x640
| update_siblings_masks+0x3c/0x330
| store_cpu_topology+0x88/0xf0
| secondary_start_kernel+0xd0/0x168
| __secondary_switched+0xb8/0xc0
Update acpi_get_pptt() to consider the fact that PPTT is once checked and
is not available on the system and return NULL avoiding any attempts to
fetch PPTT and thereby avoiding any possible sleep waiting for a mutex
in the atomic context.
来源: CVE Program / CVE List V5
CVSS Information
N/A
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，该漏洞源于在原子上下文中处理PPTT表时可能导致睡眠。
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-2023-53070 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2023-53070 补丁与修复 (3)
同批安全公告 · Linux · 2025-05-02 · 共 107 条
| CVE-2023-53116 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2023-53083 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2023-53086 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-37798 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53138 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53111 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53107 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53102 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53100 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53094 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53090 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53088 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53087 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53084 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53080 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53072 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53065 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53057 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53052 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53043 | 7.8 HIGH | Linux kernel 安全漏洞 |
显示前 20 条，共 107 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2023-53070
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