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CVE-2025-68752— iavf: Implement settime64 with -EOPNOTSUPP

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iavf驱动中ptp_clock_settime函数未实现settime64，可能导致空指针取消引用。

AI Predicted 4.4 Difficulty: Hard EPSS 0.18% · P8

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 8

VendorProduct Version RangeStatus
Linux Linux d734223b2f0dc4f5826204ee628ad6273148223d< 9e3dbc3bb2e2aa728b49422b2e5344488f93f690 affected
d734223b2f0dc4f5826204ee628ad6273148223d< 6d080f810ffd6b8e002ce5bee8b9c551ca2535c2 affected
d734223b2f0dc4f5826204ee628ad6273148223d< 1e43ebcd5152b3e681a334cc6542fb21770c3a2e affected
6.15 affected
< 6.15 unaffected
6.17.13≤ 6.17.* unaffected
6.18.2≤ 6.18.* unaffected
6.19≤ * unaffected
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I. Basic Information for CVE-2025-68752

Vulnerability Information
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Vulnerability Title
iavf: Implement settime64 with -EOPNOTSUPP
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: iavf: Implement settime64 with -EOPNOTSUPP ptp_clock_settime() assumes every ptp_clock has implemented settime64(). Stub it with -EOPNOTSUPP to prevent a NULL dereference. The fix is similar to commit 329d050bbe63 ("gve: Implement settime64 with -EOPNOTSUPP").
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iavf驱动中ptp_clock_settime函数未实现settime64，可能导致空指针取消引用。
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 d734223b2f0dc4f5826204ee628ad6273148223d ~ 9e3dbc3bb2e2aa728b49422b2e5344488f93f690 -
Linux Linux 6.15 -

II. Public POCs for CVE-2025-68752

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III. Intelligence Information for CVE-2025-68752

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Other References for CVE-2025-68752 (3)

Same Patch Batch · Linux · 2026-01-05 · 16 CVEs total

CVE-2025-68761 7.8 HIGH hfs: fix potential use after free in hfs_correct_next_unused_CNID()
CVE-2025-68764 7.8 HIGH NFS: Automounted filesystems should inherit ro,noexec,nodev,sync flags
CVE-2025-68753 7.1 HIGH ALSA: firewire-motu: add bounds check in put_user loop for DSP events
CVE-2025-68751 s390/fpu: Fix false-positive kmsan report in fpu_vstl()
CVE-2025-68754 rtc: amlogic-a4: fix double free caused by devm
CVE-2025-68755 staging: most: remove broken i2c driver
CVE-2025-68756 block: Use RCU in blk_mq_[un]quiesce_tagset() instead of set->tag_list_lock
CVE-2025-68757 drm/vgem-fence: Fix potential deadlock on release
CVE-2025-68758 backlight: led-bl: Add devlink to supplier LEDs
CVE-2025-68759 wifi: rtl818x: Fix potential memory leaks in rtl8180_init_rx_ring()
CVE-2025-68760 iommu/amd: Fix potential out-of-bounds read in iommu_mmio_show
CVE-2025-68762 net: netpoll: initialize work queue before error checks
CVE-2025-68763 crypto: starfive - Correctly handle return of sg_nents_for_len
CVE-2025-68765 mt76: mt7615: Fix memory leak in mt7615_mcu_wtbl_sta_add()
CVE-2025-68766 irqchip/mchp-eic: Fix error code in mchp_eic_domain_alloc()

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-68752

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