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CVE-2025-38542— net: appletalk: Fix device refcount leak in atrtr_create()

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，该漏洞源于未释放旧设备引用，可能导致设备引用计数泄漏。

CVSS 7.8 · High EPSS 0.18% · P7

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux c7f905f0f6d49ed8c1aa4566c31f0383a0ba0c9d< b92bedf71f25303e203a4e657489d76691a58119 affected
c7f905f0f6d49ed8c1aa4566c31f0383a0ba0c9d< a7852b01793669248dce0348d14df89e77a32afd affected
c7f905f0f6d49ed8c1aa4566c31f0383a0ba0c9d< b2f5dfa87367fdce9f8b995bc6c38f64f9ea2c90 affected
c7f905f0f6d49ed8c1aa4566c31f0383a0ba0c9d< d2e9f50f0bdad73b64a871f25186b899624518c4 affected
c7f905f0f6d49ed8c1aa4566c31f0383a0ba0c9d< 4a17370da6e476d3d275534e9e9cd2d02c57ca46 affected
c7f905f0f6d49ed8c1aa4566c31f0383a0ba0c9d< 473f3eadfc73b0fb6d8dee5829d19a5772e387f7 affected
c7f905f0f6d49ed8c1aa4566c31f0383a0ba0c9d< 64124cf0aab0dd1e18c0fb5ae66e45741e727f8b affected
c7f905f0f6d49ed8c1aa4566c31f0383a0ba0c9d< 711c80f7d8b163d3ecd463cd96f07230f488e750 affected
… +10 more rows
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I. Basic Information for CVE-2025-38542

Vulnerability Information
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Vulnerability Title
net: appletalk: Fix device refcount leak in atrtr_create()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: appletalk: Fix device refcount leak in atrtr_create() When updating an existing route entry in atrtr_create(), the old device reference was not being released before assigning the new device, leading to a device refcount leak. Fix this by calling dev_put() to release the old device reference before holding the new one.
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，该漏洞源于未释放旧设备引用，可能导致设备引用计数泄漏。
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 c7f905f0f6d49ed8c1aa4566c31f0383a0ba0c9d ~ b92bedf71f25303e203a4e657489d76691a58119 -
Linux Linux 2.6.12 -

II. Public POCs for CVE-2025-38542

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III. Intelligence Information for CVE-2025-38542

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Same Patch Batch · Linux · 2025-08-16 · 59 CVEs total

CVE-2025-38533 9.8 CRITICAL net: libwx: fix the using of Rx buffer DMA
CVE-2025-38527 9.8 CRITICAL smb: client: fix use-after-free in cifs_oplock_break
CVE-2025-38552 9.4 CRITICAL mptcp: plug races between subflow fail and subflow creation
CVE-2023-3867 9.1 CRITICAL ksmbd: fix out of bounds read in smb2_sess_setup
CVE-2023-4515 9.1 CRITICAL ksmbd: validate command request size
CVE-2023-32249 9.1 CRITICAL ksmbd: not allow guest user on multichannel
CVE-2025-38512 8.8 HIGH wifi: prevent A-MSDU attacks in mesh networks
CVE-2025-38511 8.8 HIGH drm/xe/pf: Clear all LMTT pages on alloc
CVE-2023-4130 8.1 HIGH ksmbd: fix wrong next length validation of ea buffer in smb2_set_ea()
CVE-2023-3865 8.1 HIGH ksmbd: fix out-of-bound read in smb2_write
CVE-2025-38536 7.8 HIGH net: airoha: fix potential use-after-free in airoha_npu_get()
CVE-2025-38550 7.8 HIGH ipv6: mcast: Delay put pmc->idev in mld_del_delrec()
CVE-2025-38532 7.8 HIGH net: libwx: properly reset Rx ring descriptor
CVE-2025-38539 7.8 HIGH tracing: Add down_write(trace_event_sem) when adding trace event
CVE-2025-38502 7.8 HIGH bpf: Fix oob access in cgroup local storage
CVE-2025-38523 7.5 HIGH cifs: Fix the smbd_response slab to allow usercopy
CVE-2025-38514 7.5 HIGH rxrpc: Fix oops due to non-existence of prealloc backlog struct
CVE-2025-38501 7.5 HIGH ksmbd: limit repeated connections from clients with the same IP
CVE-2025-38525 7.5 HIGH rxrpc: Fix irq-disabled in local_bh_enable()
CVE-2025-38524 7.5 HIGH rxrpc: Fix recv-recv race of completed call

Showing top 20 of 59 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-38542

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