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CVE-2025-21830— landlock: Handle weird files

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landlock处理异常文件时可能导致访问问题。

CVSS 7.3 · High EPSS 0.18% · P8

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux cb2c7d1a1776057c9a1f48ed1250d85e94d4850d< a1fccf6b72b56343dd4f2d96b008147f9951eebd affected
cb2c7d1a1776057c9a1f48ed1250d85e94d4850d< 7d6121228959ddf44a4b9b6a177384ac7854e2f9 affected
cb2c7d1a1776057c9a1f48ed1250d85e94d4850d< 39bb3d56f1c351e76bb18895d0e73796e653d5c1 affected
cb2c7d1a1776057c9a1f48ed1250d85e94d4850d< 2569e65d2eb6ac1afe6cb6dfae476afee8b6771a affected
cb2c7d1a1776057c9a1f48ed1250d85e94d4850d< 0fde195a373ab1267e60baa9e1a703a97e7464cd affected
cb2c7d1a1776057c9a1f48ed1250d85e94d4850d< 49440290a0935f428a1e43a5ac8dc275a647ff80 affected
5.13 affected
< 5.13 unaffected
… +6 more rows
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I. Basic Information for CVE-2025-21830

Vulnerability Information
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Vulnerability Title
landlock: Handle weird files
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: landlock: Handle weird files A corrupted filesystem (e.g. bcachefs) might return weird files. Instead of throwing a warning and allowing access to such file, treat them as regular files.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/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landlock处理异常文件时可能导致访问问题。
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 cb2c7d1a1776057c9a1f48ed1250d85e94d4850d ~ a1fccf6b72b56343dd4f2d96b008147f9951eebd -
Linux Linux 5.13 -

II. Public POCs for CVE-2025-21830

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III. Intelligence Information for CVE-2025-21830

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Patches & Fixes for CVE-2025-21830 (5)

Other References for CVE-2025-21830 (1)

Same Patch Batch · Linux · 2025-03-06 · 46 CVEs total

CVE-2025-21829 9.8 CRITICAL RDMA/rxe: Fix the warning "__rxe_cleanup+0x12c/0x170 [rdma_rxe]"
CVE-2025-21828 8.8 HIGH wifi: mac80211: don't flush non-uploaded STAs
CVE-2025-21825 7.8 HIGH bpf: Cancel the running bpf_timer through kworker for PREEMPT_RT
CVE-2024-58070 7.8 HIGH bpf: bpf_local_storage: Always use bpf_mem_alloc in PREEMPT_RT
CVE-2024-58083 7.8 HIGH KVM: Explicitly verify target vCPU is online in kvm_get_vcpu()
CVE-2025-21832 7.8 HIGH block: don't revert iter for -EIOCBQUEUED
CVE-2024-58069 7.8 HIGH rtc: pcf85063: fix potential OOB write in PCF85063 NVMEM read
CVE-2024-58079 7.8 HIGH media: uvcvideo: Fix crash during unbind if gpio unit is in use
CVE-2024-58086 7.8 HIGH drm/v3d: Stop active perfmon if it is being destroyed
CVE-2024-58060 7.8 HIGH bpf: Reject struct_ops registration that uses module ptr and the module btf_id is missing
CVE-2024-58075 7.8 HIGH crypto: tegra - do not transfer req when tegra init fails
CVE-2025-21827 7.8 HIGH Bluetooth: btusb: mediatek: Add locks for usb_driver_claim_interface()
CVE-2025-21826 7.8 HIGH netfilter: nf_tables: reject mismatching sum of field_len with set key length
CVE-2024-58053 7.5 HIGH rxrpc: Fix handling of received connection abort
CVE-2024-58065 clk: mmp: pxa1908-apbc: Fix NULL vs IS_ERR() check
CVE-2024-58062 wifi: iwlwifi: mvm: avoid NULL pointer dereference
CVE-2024-58061 wifi: mac80211: prohibit deactivating all links
CVE-2024-58064 wifi: cfg80211: tests: Fix potential NULL dereference in test_cfg80211_parse_colocated_ap(
CVE-2024-58063 wifi: rtlwifi: fix memory leaks and invalid access at probe error path
CVE-2024-58066 clk: mmp: pxa1908-apbcp: Fix a NULL vs IS_ERR() check

Showing top 20 of 46 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-21830

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