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CVE-2024-57881— mm/page_alloc: don't call pfn_to_page() on possibly non-existent PFN in split_large_buddy()

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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split_large_buddy函数可能对不存在的PFN调用pfn_to_page，导致空指针取消引用。

AI Predicted 5.6 Difficulty: Moderate EPSS 0.18% · P7

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 6

VendorProduct Version RangeStatus
Linux Linux fd919a85cd55be5d00a6a7372071f44c8eafb825< 4234ca9884bcae9e48ed38652d91696ad5cd591d affected
fd919a85cd55be5d00a6a7372071f44c8eafb825< faeec8e23c10bd30e8aa759a2eb3018dae00f924 affected
6.10 affected
< 6.10 unaffected
6.12.7≤ 6.12.* unaffected
6.13≤ * unaffected
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I. Basic Information for CVE-2024-57881

Vulnerability Information
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Vulnerability Title
mm/page_alloc: don't call pfn_to_page() on possibly non-existent PFN in split_large_buddy()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: mm/page_alloc: don't call pfn_to_page() on possibly non-existent PFN in split_large_buddy() In split_large_buddy(), we might call pfn_to_page() on a PFN that might not exist. In corner cases, such as when freeing the highest pageblock in the last memory section, this could result with CONFIG_SPARSEMEM && !CONFIG_SPARSEMEM_EXTREME in __pfn_to_section() returning NULL and and __section_mem_map_addr() dereferencing that NULL pointer. Let's fix it, and avoid doing a pfn_to_page() call for the first iteration, where we already have the page. So far this was found by code inspection, but let's just CC stable as the fix is easy.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
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split_large_buddy函数可能对不存在的PFN调用pfn_to_page，导致空指针取消引用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux fd919a85cd55be5d00a6a7372071f44c8eafb825 ~ 4234ca9884bcae9e48ed38652d91696ad5cd591d -
Linux Linux 6.10 -

II. Public POCs for CVE-2024-57881

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III. Intelligence Information for CVE-2024-57881

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Patches & Fixes for CVE-2024-57881 (2)

Same Patch Batch · Linux · 2025-01-11 · 67 CVEs total

CVE-2024-57843 9.8 CRITICAL virtio-net: fix overflow inside virtnet_rq_alloc
CVE-2024-47408 9.8 CRITICAL net/smc: check smcd_v2_ext_offset when receiving proposal msg
CVE-2024-49568 9.8 CRITICAL net/smc: check v2_ext_offset/eid_cnt/ism_gid_cnt when receiving proposal msg
CVE-2024-57793 9.3 CRITICAL virt: tdx-guest: Just leak decrypted memory on unrecoverable errors
CVE-2024-49571 9.1 CRITICAL net/smc: check iparea_offset and ipv6_prefixes_cnt when receiving proposal msg
CVE-2024-55639 8.4 HIGH net: renesas: rswitch: avoid use-after-put for a device tree node
CVE-2024-41149 7.8 HIGH block: avoid to reuse `hctx` not removed from cpuhp callback list
CVE-2024-52319 7.8 HIGH mm: use aligned address in clear_gigantic_page()
CVE-2024-57849 7.8 HIGH s390/cpum_sf: Handle CPU hotplug remove during sampling
CVE-2024-57850 7.8 HIGH jffs2: Prevent rtime decompress memory corruption
CVE-2024-51729 7.8 HIGH mm: use aligned address in copy_user_gigantic_page()
CVE-2024-57875 7.8 HIGH block: RCU protect disk->conv_zones_bitmap
CVE-2024-47794 7.8 HIGH bpf: Prevent tailcall infinite loop caused by freplace
CVE-2024-49569 7.5 HIGH nvme-rdma: unquiesce admin_q before destroy it
CVE-2024-57791 7.5 HIGH net/smc: check return value of sock_recvmsg when draining clc data
CVE-2024-56788 7.5 HIGH net: ethernet: oa_tc6: fix tx skb race condition between reference pointers
CVE-2024-57792 7.3 HIGH power: supply: gpio-charger: Fix set charge current limits
CVE-2024-57804 7.3 HIGH scsi: mpi3mr: Fix corrupt config pages PHY state is switched in sysfs
CVE-2024-56368 7.1 HIGH ring-buffer: Fix overflow in __rb_map_vma
CVE-2024-49573 7.0 HIGH sched/fair: Fix NEXT_BUDDY

Showing top 20 of 67 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-57881

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