CVE-2024-57884— 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mm/vmscan组件存在free页面未计入问题。
可能的 ATT&CK 技术 1 AI
T1496 · Resource Hijacking影响版本矩阵 16
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | 5a1c84b404a7176b8b36e2a0041b6f0adb3151a3< 66cd37660ec34ec444fe42f2277330ae4a36bb19 |
affected |
5a1c84b404a7176b8b36e2a0041b6f0adb3151a3< d675fefbaec3815b3ae0af1bebd97f27df3a05c8 |
affected | ||
5a1c84b404a7176b8b36e2a0041b6f0adb3151a3< 63eac98d6f0898229f515cb62fe4e4db2430e99c |
affected | ||
5a1c84b404a7176b8b36e2a0041b6f0adb3151a3< bfb701192129803191c9cd6cdd1f82cd07f8de2c |
affected | ||
5a1c84b404a7176b8b36e2a0041b6f0adb3151a3< 1ff2302e8aeac7f2eedb551d7a89617283b5c6b2 |
affected | ||
5a1c84b404a7176b8b36e2a0041b6f0adb3151a3< 58d0d02dbc67438fc80223fdd7bbc49cf0733284 |
affected | ||
5a1c84b404a7176b8b36e2a0041b6f0adb3151a3< 6aaced5abd32e2a57cd94fd64f824514d0361da8 |
affected | ||
4.8 |
affected | ||
| … +8 条更多 | |||
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一、 漏洞 CVE-2024-57884 基础信息
漏洞信息
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Vulnerability Title
mm: vmscan: account for free pages to prevent infinite Loop in throttle_direct_reclaim()
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
mm: vmscan: account for free pages to prevent infinite Loop in throttle_direct_reclaim()
The task sometimes continues looping in throttle_direct_reclaim() because
allow_direct_reclaim(pgdat) keeps returning false.
#0 [ffff80002cb6f8d0] __switch_to at ffff8000080095ac
#1 [ffff80002cb6f900] __schedule at ffff800008abbd1c
#2 [ffff80002cb6f990] schedule at ffff800008abc50c
#3 [ffff80002cb6f9b0] throttle_direct_reclaim at ffff800008273550
#4 [ffff80002cb6fa20] try_to_free_pages at ffff800008277b68
#5 [ffff80002cb6fae0] __alloc_pages_nodemask at ffff8000082c4660
#6 [ffff80002cb6fc50] alloc_pages_vma at ffff8000082e4a98
#7 [ffff80002cb6fca0] do_anonymous_page at ffff80000829f5a8
#8 [ffff80002cb6fce0] __handle_mm_fault at ffff8000082a5974
#9 [ffff80002cb6fd90] handle_mm_fault at ffff8000082a5bd4
At this point, the pgdat contains the following two zones:
NODE: 4 ZONE: 0 ADDR: ffff00817fffe540 NAME: "DMA32"
SIZE: 20480 MIN/LOW/HIGH: 11/28/45
VM_STAT:
NR_FREE_PAGES: 359
NR_ZONE_INACTIVE_ANON: 18813
NR_ZONE_ACTIVE_ANON: 0
NR_ZONE_INACTIVE_FILE: 50
NR_ZONE_ACTIVE_FILE: 0
NR_ZONE_UNEVICTABLE: 0
NR_ZONE_WRITE_PENDING: 0
NR_MLOCK: 0
NR_BOUNCE: 0
NR_ZSPAGES: 0
NR_FREE_CMA_PAGES: 0
NODE: 4 ZONE: 1 ADDR: ffff00817fffec00 NAME: "Normal"
SIZE: 8454144 PRESENT: 98304 MIN/LOW/HIGH: 68/166/264
VM_STAT:
NR_FREE_PAGES: 146
NR_ZONE_INACTIVE_ANON: 94668
NR_ZONE_ACTIVE_ANON: 3
NR_ZONE_INACTIVE_FILE: 735
NR_ZONE_ACTIVE_FILE: 78
NR_ZONE_UNEVICTABLE: 0
NR_ZONE_WRITE_PENDING: 0
NR_MLOCK: 0
NR_BOUNCE: 0
NR_ZSPAGES: 0
NR_FREE_CMA_PAGES: 0
In allow_direct_reclaim(), while processing ZONE_DMA32, the sum of
inactive/active file-backed pages calculated in zone_reclaimable_pages()
based on the result of zone_page_state_snapshot() is zero.
Additionally, since this system lacks swap, the calculation of inactive/
active anonymous pages is skipped.
crash> p nr_swap_pages
nr_swap_pages = $1937 = {
counter = 0
}
As a result, ZONE_DMA32 is deemed unreclaimable and skipped, moving on to
the processing of the next zone, ZONE_NORMAL, despite ZONE_DMA32 having
free pages significantly exceeding the high watermark.
The problem is that the pgdat->kswapd_failures hasn't been incremented.
crash> px ((struct pglist_data *) 0xffff00817fffe540)->kswapd_failures
$1935 = 0x0
This is because the node deemed balanced. The node balancing logic in
balance_pgdat() evaluates all zones collectively. If one or more zones
(e.g., ZONE_DMA32) have enough free pages to meet their watermarks, the
entire node is deemed balanced. This causes balance_pgdat() to exit early
before incrementing the kswapd_failures, as it considers the overall
memory state acceptable, even though some zones (like ZONE_NORMAL) remain
under significant pressure.
The patch ensures that zone_reclaimable_pages() includes free pages
(NR_FREE_PAGES) in its calculation when no other reclaimable pages are
available (e.g., file-backed or anonymous pages). This change prevents
zones like ZONE_DMA32, which have sufficient free pages, from being
mistakenly deemed unreclaimable. By doing so, the patch ensures proper
node balancing, avoids masking pressure on other zones like ZONE_NORMAL,
and prevents infinite loops in throttle_direct_reclaim() caused by
allow_direct_reclaim(pgdat) repeatedly returning false.
The kernel hangs due to a task stuck in throttle_direct_reclaim(), caused
by a node being incorrectly deemed balanced despite pressure in certain
zones, such as ZONE_NORMAL. This issue arises from
zone_reclaimable_pages
---truncated---
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mm/vmscan组件存在free页面未计入问题。
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-2024-57884 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2024-57884 补丁与修复 (7)
同批安全公告 · Linux · 2025-01-15 · 共 32 条
| CVE-2024-57882 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-36476 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-57802 | 9.4 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2025-21629 | 8.2 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-57883 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-57857 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-57801 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-57795 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-39282 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-57896 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-57893 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-57887 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-57899 | 7.6 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-57902 | 7.3 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-57901 | 7.3 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-57895 | 7.1 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-57885 | Linux kernel 安全漏洞 | |
| CVE-2024-57844 | Linux kernel 安全漏洞 | |
| CVE-2024-57841 | Linux kernel 安全漏洞 | |
| CVE-2024-57886 | Linux kernel 安全漏洞 |
显示前 20 条，共 32 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2024-57884
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