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CVE-2023-53623— 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swap_info_struct在swapoff和get_swap_pages之间存在竞争条件，可能导致内存损坏。

AI 预测 6.5 利用难度: 中等 EPSS 0.14% · P3

影响版本矩阵 18

厂商产品 版本范围状态
Linux Linux a2468cc9bfdff6139f59ca896671e5819ff5f94a< 111a79d9b92f0a679fe300ccd3119ae9741f3d54 affected
a2468cc9bfdff6139f59ca896671e5819ff5f94a< a55f268abdb74ac5633b75a09fefb58458e9d2a2 affected
a2468cc9bfdff6139f59ca896671e5819ff5f94a< e7bba7ddb4318d5ea939c8db747c2c2780ab66f4 affected
a2468cc9bfdff6139f59ca896671e5819ff5f94a< ea8c42b3b6d95ced3a4f555f04686d00ef0bb206 affected
a2468cc9bfdff6139f59ca896671e5819ff5f94a< 4bdf1514b4268d29360ba9e43becdd49955bc7ae affected
a2468cc9bfdff6139f59ca896671e5819ff5f94a< 85cc118ce6f1a627901b6db50c9d01f2ad78cdbf affected
a2468cc9bfdff6139f59ca896671e5819ff5f94a< b9927d3a60ca9ed35625470888629c074e687ba0 affected
a2468cc9bfdff6139f59ca896671e5819ff5f94a< 6fe7d6b992113719e96744d974212df3fcddc76c affected
… +10 条更多
获取后续新漏洞提醒 登录后订阅

一、 漏洞 CVE-2023-53623 基础信息

漏洞信息
对漏洞内容有疑问？看看神龙的深度分析是否有帮助！
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尽管我们使用了先进的大模型技术，但其输出仍可能包含不准确或过时的信息。神龙努力确保数据的准确性，但请您根据实际情况进行核实和判断。

Vulnerability Title
mm/swap: fix swap_info_struct race between swapoff and get_swap_pages()
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: mm/swap: fix swap_info_struct race between swapoff and get_swap_pages() The si->lock must be held when deleting the si from the available list. Otherwise, another thread can re-add the si to the available list, which can lead to memory corruption. The only place we have found where this happens is in the swapoff path. This case can be described as below: core 0 core 1 swapoff del_from_avail_list(si) waiting try lock si->lock acquire swap_avail_lock and re-add si into swap_avail_head acquire si->lock but missing si already being added again, and continuing to clear SWP_WRITEOK, etc. It can be easily found that a massive warning messages can be triggered inside get_swap_pages() by some special cases, for example, we call madvise(MADV_PAGEOUT) on blocks of touched memory concurrently, meanwhile, run much swapon-swapoff operations (e.g. stress-ng-swap). However, in the worst case, panic can be caused by the above scene. In swapoff(), the memory used by si could be kept in swap_info[] after turning off a swap. This means memory corruption will not be caused immediately until allocated and reset for a new swap in the swapon path. A panic message caused: (with CONFIG_PLIST_DEBUG enabled) ------------[ cut here ]------------ top: 00000000e58a3003, n: 0000000013e75cda, p: 000000008cd4451a prev: 0000000035b1e58a, n: 000000008cd4451a, p: 000000002150ee8d next: 000000008cd4451a, n: 000000008cd4451a, p: 000000008cd4451a WARNING: CPU: 21 PID: 1843 at lib/plist.c:60 plist_check_prev_next_node+0x50/0x70 Modules linked in: rfkill(E) crct10dif_ce(E)... CPU: 21 PID: 1843 Comm: stress-ng Kdump: ... 5.10.134+ Hardware name: Alibaba Cloud ECS, BIOS 0.0.0 02/06/2015 pstate: 60400005 (nZCv daif +PAN -UAO -TCO BTYPE=--) pc : plist_check_prev_next_node+0x50/0x70 lr : plist_check_prev_next_node+0x50/0x70 sp : ffff0018009d3c30 x29: ffff0018009d3c40 x28: ffff800011b32a98 x27: 0000000000000000 x26: ffff001803908000 x25: ffff8000128ea088 x24: ffff800011b32a48 x23: 0000000000000028 x22: ffff001800875c00 x21: ffff800010f9e520 x20: ffff001800875c00 x19: ffff001800fdc6e0 x18: 0000000000000030 x17: 0000000000000000 x16: 0000000000000000 x15: 0736076307640766 x14: 0730073007380731 x13: 0736076307640766 x12: 0730073007380731 x11: 000000000004058d x10: 0000000085a85b76 x9 : ffff8000101436e4 x8 : ffff800011c8ce08 x7 : 0000000000000000 x6 : 0000000000000001 x5 : ffff0017df9ed338 x4 : 0000000000000001 x3 : ffff8017ce62a000 x2 : ffff0017df9ed340 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: plist_check_prev_next_node+0x50/0x70 plist_check_head+0x80/0xf0 plist_add+0x28/0x140 add_to_avail_list+0x9c/0xf0 _enable_swap_info+0x78/0xb4 __do_sys_swapon+0x918/0xa10 __arm64_sys_swapon+0x20/0x30 el0_svc_common+0x8c/0x220 do_el0_svc+0x2c/0x90 el0_svc+0x1c/0x30 el0_sync_handler+0xa8/0xb0 el0_sync+0x148/0x180 irq event stamp: 2082270 Now, si->lock locked before calling 'del_from_avail_list()' to make sure other thread see the si had been deleted and SWP_WRITEOK cleared together, will not reinsert again. This problem exists in versions after stable 5.10.y.
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swap_info_struct在swapoff和get_swap_pages之间存在竞争条件，可能导致内存损坏。
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

厂商 产品 影响版本 CPE 订阅
Linux Linux a2468cc9bfdff6139f59ca896671e5819ff5f94a ~ 111a79d9b92f0a679fe300ccd3119ae9741f3d54 -
Linux Linux 4.14 -

二、漏洞 CVE-2023-53623 的公开POC

# POC 描述 源链接 神龙链接
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三、漏洞 CVE-2023-53623 的情报信息

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CVE-2023-53623 补丁与修复 (8)

同批安全公告 · Linux · 2025-10-07 · 共 118 条

CVE-2023-53629 9.8 CRITICAL Linux kernel 安全漏洞
CVE-2023-53630 8.8 HIGH Linux kernel 安全漏洞
CVE-2023-53676 8.8 HIGH Linux kernel 安全漏洞
CVE-2023-53675 8.8 HIGH Linux kernel 安全漏洞
CVE-2023-53673 8.8 HIGH Linux kernel 安全漏洞
CVE-2023-53679 8.3 HIGH Linux kernel 安全漏洞
CVE-2023-53635 8.2 HIGH Linux kernel 安全漏洞
CVE-2023-53669 7.8 HIGH Linux kernel 安全漏洞
CVE-2022-50555 7.8 HIGH Linux kernel 安全漏洞
CVE-2023-53627 7.8 HIGH Linux kernel 安全漏洞
CVE-2023-53626 7.8 HIGH Linux kernel 安全漏洞
CVE-2023-53660 7.8 HIGH Linux kernel 安全漏洞
CVE-2023-53659 7.8 HIGH Linux kernel 安全漏洞
CVE-2023-53619 7.8 HIGH Linux kernel 安全漏洞
CVE-2023-53643 7.8 HIGH Linux kernel 安全漏洞
CVE-2023-53645 7.8 HIGH Linux kernel 安全漏洞
CVE-2023-53646 7.8 HIGH Linux kernel 安全漏洞
CVE-2022-50528 7.8 HIGH Linux kernel 安全漏洞
CVE-2023-53651 7.8 HIGH Linux kernel 安全漏洞
CVE-2022-50543 7.8 HIGH Linux kernel 安全漏洞

显示前 20 条，共 118 条。 查看全部 &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-53623

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