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CVE-2025-38460— atm: clip: Fix potential null-ptr-deref in to_atmarpd().

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to_atmarpd中的潜在空指针解引用问题。

CVSS 7.0 · High EPSS 0.18% · P7

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< a4c5785feb979cd996a99cfaad8bf353b2e79301 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 70eac9ba7ce25d99c1d99bbf4ddb058940f631f9 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 3251ce3979f41bd228f77a7615f9dd616d06a110 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< ee4d9e4ddf3f9c4ee2ec0a3aad6196ee36d30e57 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 06935c50cfa3ac57cce80bba67b6d38ec1406e92 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 36caab990b69ef4eec1d81c52a19f080b7daa059 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< f58e4270c73e7f086322978d585ea67c8076ce49 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 706cc36477139c1616a9b2b96610a8bb520b7119 affected
… +10 more rows
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I. Basic Information for CVE-2025-38460

Vulnerability Information
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Vulnerability Title
atm: clip: Fix potential null-ptr-deref in to_atmarpd().
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: atm: clip: Fix potential null-ptr-deref in to_atmarpd(). atmarpd is protected by RTNL since commit f3a0592b37b8 ("[ATM]: clip causes unregister hang"). However, it is not enough because to_atmarpd() is called without RTNL, especially clip_neigh_solicit() / neigh_ops->solicit() is unsleepable. Also, there is no RTNL dependency around atmarpd. Let's use a private mutex and RCU to protect access to atmarpd in to_atmarpd().
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/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to_atmarpd中的潜在空指针解引用问题。
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 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 ~ a4c5785feb979cd996a99cfaad8bf353b2e79301 -
Linux Linux 2.6.12 -

II. Public POCs for CVE-2025-38460

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III. Intelligence Information for CVE-2025-38460

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Patches & Fixes for CVE-2025-38460 (1)

Same Patch Batch · Linux · 2025-07-25 · 114 CVEs total

CVE-2025-38429 10.0 CRITICAL bus: mhi: ep: Update read pointer only after buffer is written
CVE-2025-38411 9.8 CRITICAL netfs: Fix double put of request
CVE-2025-38430 9.8 CRITICAL nfsd: nfsd4_spo_must_allow() must check this is a v4 compound request
CVE-2025-38439 9.8 CRITICAL bnxt_en: Set DMA unmap len correctly for XDP_REDIRECT
CVE-2025-38365 9.1 CRITICAL btrfs: fix a race between renames and directory logging
CVE-2025-38377 8.8 HIGH rose: fix dangling neighbour pointers in rose_rt_device_down()
CVE-2025-38367 8.8 HIGH LoongArch: KVM: Avoid overflow with array index
CVE-2025-38437 8.8 HIGH ksmbd: fix potential use-after-free in oplock/lease break ack
CVE-2025-38375 8.4 HIGH virtio-net: ensure the received length does not exceed allocated size
CVE-2025-38395 8.4 HIGH regulator: gpio: Fix the out-of-bounds access to drvdata::gpiods
CVE-2025-38386 7.8 HIGH ACPICA: Refuse to evaluate a method if arguments are missing
CVE-2025-38449 7.8 HIGH drm/gem: Acquire references on GEM handles for framebuffers
CVE-2025-38434 7.8 HIGH Revert "riscv: Define TASK_SIZE_MAX for __access_ok()"
CVE-2025-38412 7.8 HIGH platform/x86: dell-wmi-sysman: Fix WMI data block retrieval in sysfs callbacks
CVE-2025-38382 7.8 HIGH btrfs: fix iteration of extrefs during log replay
CVE-2025-38447 7.8 HIGH mm/rmap: fix potential out-of-bounds page table access during batched unmap
CVE-2025-38398 7.8 HIGH spi: spi-qpic-snand: reallocate BAM transactions
CVE-2025-38408 7.8 HIGH genirq/irq_sim: Initialize work context pointers properly
CVE-2025-38396 7.8 HIGH fs: export anon_inode_make_secure_inode() and fix secretmem LSM bypass
CVE-2025-38435 7.8 HIGH riscv: vector: Fix context save/restore with xtheadvector

Showing top 20 of 114 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-38460

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