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CVE-2025-38348— wifi: p54: prevent buffer-overflow in p54_rx_eeprom_readback()

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p54_rx_eeprom_readback函数存在缓冲区溢出。

AI Predicted 6.5 Difficulty: Moderate EPSS 0.20% · P9

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 7cb770729ba895f73253dfcd46c3fcba45d896f9< 12134f79e53eb56b0b0b7447fa0c512acf6a8422 affected
7cb770729ba895f73253dfcd46c3fcba45d896f9< 9701f842031b825e2fd5f22d064166f8f13f6e4d affected
7cb770729ba895f73253dfcd46c3fcba45d896f9< 1f7f8168abe8cbe845ab8bb557228d44784a6b57 affected
7cb770729ba895f73253dfcd46c3fcba45d896f9< f39b2f8c1549a539846e083790fad396ef6cd802 affected
7cb770729ba895f73253dfcd46c3fcba45d896f9< 0e4dc150423b829c35cbcf399481ca11594fc036 affected
7cb770729ba895f73253dfcd46c3fcba45d896f9< 6d05390d20f110de37d051a3e063ef0a542d01fb affected
7cb770729ba895f73253dfcd46c3fcba45d896f9< 714afb4c38edd19a057d519c1f9c5d164b43de94 affected
7cb770729ba895f73253dfcd46c3fcba45d896f9< da1b9a55ff116cb040528ef664c70a4eec03ae99 affected
… +10 more rows
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I. Basic Information for CVE-2025-38348

Vulnerability Information
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Vulnerability Title
wifi: p54: prevent buffer-overflow in p54_rx_eeprom_readback()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: wifi: p54: prevent buffer-overflow in p54_rx_eeprom_readback() Robert Morris reported: |If a malicious USB device pretends to be an Intersil p54 wifi |interface and generates an eeprom_readback message with a large |eeprom->v1.len, p54_rx_eeprom_readback() will copy data from the |message beyond the end of priv->eeprom. | |static void p54_rx_eeprom_readback(struct p54_common *priv, | struct sk_buff *skb) |{ | struct p54_hdr *hdr = (struct p54_hdr *) skb->data; | struct p54_eeprom_lm86 *eeprom = (struct p54_eeprom_lm86 *) hdr->data; | | if (priv->fw_var >= 0x509) { | memcpy(priv->eeprom, eeprom->v2.data, | le16_to_cpu(eeprom->v2.len)); | } else { | memcpy(priv->eeprom, eeprom->v1.data, | le16_to_cpu(eeprom->v1.len)); | } | [...] The eeprom->v{1,2}.len is set by the driver in p54_download_eeprom(). The device is supposed to provide the same length back to the driver. But yes, it's possible (like shown in the report) to alter the value to something that causes a crash/panic due to overrun. This patch addresses the issue by adding the size to the common device context, so p54_rx_eeprom_readback no longer relies on possibly tampered values... That said, it also checks if the "firmware" altered the value and no longer copies them. The one, small saving grace is: Before the driver tries to read the eeprom, it needs to upload >a< firmware. the vendor firmware has a proprietary license and as a reason, it is not present on most distributions by default.
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p54_rx_eeprom_readback函数存在缓冲区溢出。
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 7cb770729ba895f73253dfcd46c3fcba45d896f9 ~ 12134f79e53eb56b0b0b7447fa0c512acf6a8422 -
Linux Linux 2.6.28 -

II. Public POCs for CVE-2025-38348

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III. Intelligence Information for CVE-2025-38348

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Same Patch Batch · Linux · 2025-07-10 · 84 CVEs total

CVE-2025-38325 9.8 CRITICAL ksmbd: add free_transport ops in ksmbd connection
CVE-2025-38283 8.8 HIGH hisi_acc_vfio_pci: bugfix live migration function without VF device driver
CVE-2025-38290 8.8 HIGH wifi: ath12k: fix node corruption in ar->arvifs list
CVE-2025-38291 8.8 HIGH wifi: ath12k: Prevent sending WMI commands to firmware during firmware crash
CVE-2025-38293 8.8 HIGH wifi: ath11k: fix node corruption in ar->arvifs list
CVE-2025-38292 8.8 HIGH wifi: ath12k: fix invalid access to memory
CVE-2025-38343 8.3 HIGH wifi: mt76: mt7996: drop fragments with multicast or broadcast RA
CVE-2025-38321 7.8 HIGH smb: Log an error when close_all_cached_dirs fails
CVE-2025-38303 7.8 HIGH Bluetooth: eir: Fix possible crashes on eir_create_adv_data
CVE-2025-38333 7.8 HIGH f2fs: fix to bail out in get_new_segment()
CVE-2025-38317 7.8 HIGH wifi: ath12k: Fix buffer overflow in debugfs
CVE-2025-38306 7.8 HIGH fs/fhandle.c: fix a race in call of has_locked_children()
CVE-2025-38278 7.8 HIGH octeontx2-pf: QOS: Refactor TC_HTB_LEAF_DEL_LAST callback
CVE-2025-38270 7.8 HIGH net: drv: netdevsim: don't napi_complete() from netpoll
CVE-2025-38273 7.8 HIGH net: tipc: fix refcount warning in tipc_aead_encrypt
CVE-2025-38341 7.8 HIGH eth: fbnic: avoid double free when failing to DMA-map FW msg
CVE-2025-38346 7.8 HIGH ftrace: Fix UAF when lookup kallsym after ftrace disabled
CVE-2025-38276 7.8 HIGH fs/dax: Fix "don't skip locked entries when scanning entries"
CVE-2025-38339 7.8 HIGH powerpc/bpf: fix JIT code size calculation of bpf trampoline
CVE-2025-38287 7.5 HIGH IB/cm: Drop lockdep assert and WARN when freeing old msg

Showing top 20 of 84 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-38348

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