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CVE-2025-38406— wifi: ath6kl: remove WARN on bad firmware input

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ath6kl wifi驱动对错误固件输入的过度警告，可能导致系统日志污染。

AI Predicted 5.3 Difficulty: Theoretical EPSS 0.19% · P8

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux bdcd81707973cf8aa9305337166f8ee842a050d4< 7a2afdc5af3b82b601f6a2f0d1c90d5f0bc27aeb affected
bdcd81707973cf8aa9305337166f8ee842a050d4< e6c49f0b203a987c306676d241066451b74db1a5 affected
bdcd81707973cf8aa9305337166f8ee842a050d4< 46b47d4b06fa7f234d93f0f8ac43798feafcff89 affected
bdcd81707973cf8aa9305337166f8ee842a050d4< 89bd133529a4d2d68287128b357e49adc00ec690 affected
bdcd81707973cf8aa9305337166f8ee842a050d4< 347827bd0c5680dac2dd59674616840c4d5154f1 affected
bdcd81707973cf8aa9305337166f8ee842a050d4< 327997afbb5e62532c28c1861ab5534c01969c9a affected
bdcd81707973cf8aa9305337166f8ee842a050d4< 27d07deea35ae67f2e75913242e25bdb7e1114e5 affected
bdcd81707973cf8aa9305337166f8ee842a050d4< e7417421d89358da071fd2930f91e67c7128fbff affected
… +10 more rows
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I. Basic Information for CVE-2025-38406

Vulnerability Information
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Vulnerability Title
wifi: ath6kl: remove WARN on bad firmware input
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: wifi: ath6kl: remove WARN on bad firmware input If the firmware gives bad input, that's nothing to do with the driver's stack at this point etc., so the WARN_ON() doesn't add any value. Additionally, this is one of the top syzbot reports now. Just print a message, and as an added bonus, print the sizes too.
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ath6kl wifi驱动对错误固件输入的过度警告，可能导致系统日志污染。
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 bdcd81707973cf8aa9305337166f8ee842a050d4 ~ 7a2afdc5af3b82b601f6a2f0d1c90d5f0bc27aeb -
Linux Linux 3.2 -

II. Public POCs for CVE-2025-38406

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III. Intelligence Information for CVE-2025-38406

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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-2025-38430 9.8 CRITICAL nfsd: nfsd4_spo_must_allow() must check this is a v4 compound request
CVE-2025-38411 9.8 CRITICAL netfs: Fix double put of 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-2025-38437 8.8 HIGH ksmbd: fix potential use-after-free in oplock/lease break ack
CVE-2025-38367 8.8 HIGH LoongArch: KVM: Avoid overflow with array index
CVE-2025-38395 8.4 HIGH regulator: gpio: Fix the out-of-bounds access to drvdata::gpiods
CVE-2025-38375 8.4 HIGH virtio-net: ensure the received length does not exceed allocated size
CVE-2025-38435 7.8 HIGH riscv: vector: Fix context save/restore with xtheadvector
CVE-2025-38396 7.8 HIGH fs: export anon_inode_make_secure_inode() and fix secretmem LSM bypass
CVE-2025-38401 7.8 HIGH mtk-sd: Prevent memory corruption from DMA map failure
CVE-2025-38449 7.8 HIGH drm/gem: Acquire references on GEM handles for framebuffers
CVE-2025-38382 7.8 HIGH btrfs: fix iteration of extrefs during log replay
CVE-2025-38434 7.8 HIGH Revert "riscv: Define TASK_SIZE_MAX for __access_ok()"
CVE-2025-38440 7.8 HIGH net/mlx5e: Fix race between DIM disable and net_dim()
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-2025-38447 7.8 HIGH mm/rmap: fix potential out-of-bounds page table access during batched unmap

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-2025-38406

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