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CVE-2025-21785— arm64: cacheinfo: Avoid out-of-bounds write to cacheinfo array

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，该漏洞源于未正确处理缓存信息数组的越界写入。

CVSS 7.8 · High EPSS 0.27% · P19

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 5d425c18653731af62831d30a4fa023d532657a9< 4371ac7b494e933fffee2bd6265d18d73c4f05aa affected
5d425c18653731af62831d30a4fa023d532657a9< e4fde33107351ec33f1a64188612fbc6ca659284 affected
5d425c18653731af62831d30a4fa023d532657a9< 88a3e6afaf002250220793df99404977d343db14 affected
5d425c18653731af62831d30a4fa023d532657a9< 4ff25f0b18d1d0174c105e4620428bcdc1213860 affected
5d425c18653731af62831d30a4fa023d532657a9< ab90894f33c15b14c1cee6959ab6c8dcb09127f8 affected
5d425c18653731af62831d30a4fa023d532657a9< 715eb1af64779e1b1aa0a7b2ffb81414d9f708e5 affected
5d425c18653731af62831d30a4fa023d532657a9< 67b99a2b5811df4294c2ad50f9bff3b6a08bd618 affected
5d425c18653731af62831d30a4fa023d532657a9< 875d742cf5327c93cba1f11e12b08d3cce7a88d2 affected
… +10 more rows
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I. Basic Information for CVE-2025-21785

Vulnerability Information
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Vulnerability Title
arm64: cacheinfo: Avoid out-of-bounds write to cacheinfo array
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: arm64: cacheinfo: Avoid out-of-bounds write to cacheinfo array The loop that detects/populates cache information already has a bounds check on the array size but does not account for cache levels with separate data/instructions cache. Fix this by incrementing the index for any populated leaf (instead of any populated level).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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，该漏洞源于未正确处理缓存信息数组的越界写入。
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 5d425c18653731af62831d30a4fa023d532657a9 ~ 4371ac7b494e933fffee2bd6265d18d73c4f05aa -
Linux Linux 4.0 -

II. Public POCs for CVE-2025-21785

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III. Intelligence Information for CVE-2025-21785

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Patches & Fixes for CVE-2025-21785 (5)

Other References for CVE-2025-21785 (3)

Same Patch Batch · Linux · 2025-02-27 · 177 CVEs total

CVE-2025-21805 9.8 CRITICAL RDMA/rtrs: Add missing deinit() call
CVE-2025-21796 9.8 CRITICAL nfsd: clear acl_access/acl_default after releasing them
CVE-2025-21707 9.8 CRITICAL mptcp: consolidate suboption status
CVE-2025-21748 9.8 CRITICAL ksmbd: fix integer overflows on 32 bit systems
CVE-2024-58006 9.6 CRITICAL PCI: dwc: ep: Prevent changing BAR size/flags in pci_epc_set_bar()
CVE-2024-57999 8.8 HIGH powerpc/pseries/iommu: IOMMU incorrectly marks MMIO range in DDW
CVE-2025-21735 8.8 HIGH NFC: nci: Add bounds checking in nci_hci_create_pipe()
CVE-2024-57997 8.8 HIGH wifi: wcn36xx: fix channel survey memory allocation size
CVE-2024-57995 8.8 HIGH wifi: ath12k: fix read pointer after free in ath12k_mac_assign_vif_to_vdev()
CVE-2025-21710 8.2 HIGH tcp: correct handling of extreme memory squeeze
CVE-2025-21766 8.1 HIGH ipv4: use RCU protection in __ip_rt_update_pmtu()
CVE-2024-57973 8.1 HIGH rdma/cxgb4: Prevent potential integer overflow on 32bit
CVE-2025-21762 8.1 HIGH arp: use RCU protection in arp_xmit()
CVE-2025-21765 8.1 HIGH ipv6: use RCU protection in ip6_default_advmss()
CVE-2025-21760 8.1 HIGH ndisc: extend RCU protection in ndisc_send_skb()
CVE-2025-21764 7.8 HIGH ndisc: use RCU protection in ndisc_alloc_skb()
CVE-2024-58019 7.8 HIGH nvkm/gsp: correctly advance the read pointer of GSP message queue
CVE-2024-58008 7.8 HIGH KEYS: trusted: dcp: fix improper sg use with CONFIG_VMAP_STACK=y
CVE-2024-58010 7.8 HIGH binfmt_flat: Fix integer overflow bug on 32 bit systems
CVE-2024-58013 7.8 HIGH Bluetooth: MGMT: Fix slab-use-after-free Read in mgmt_remove_adv_monitor_sync

Showing top 20 of 177 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-21785

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