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CVE-2025-68765— mt76: mt7615: Fix memory leak in mt7615_mcu_wtbl_sta_add()

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mt7615驱动中mt7615_mcu_wtbl_sta_add函数分配失败时未释放skb，可能导致内存泄漏。

AI Predicted 5.3 Difficulty: Easy EPSS 0.19% · P8

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux 99c457d902cf90bdc0df5d57e6156ec108711068< d6c91fc732698642f70c688324c98551b97b412c affected
99c457d902cf90bdc0df5d57e6156ec108711068< 594ff8bb69e239678a8baa461827ce4bb90eff8f affected
99c457d902cf90bdc0df5d57e6156ec108711068< 1c3c234af9407256ed670c8752923a672eea4225 affected
99c457d902cf90bdc0df5d57e6156ec108711068< 278bfed4529a0c9c9119f5a52ddafe69db61a75c affected
99c457d902cf90bdc0df5d57e6156ec108711068< fb905e69941b44e03fe1a24e95328d45442b6d6d affected
99c457d902cf90bdc0df5d57e6156ec108711068< 4d42aba0ee49c0aa015c50c4f2a07cf8fa1c3a49 affected
99c457d902cf90bdc0df5d57e6156ec108711068< 53d1548612670aa8b5d89745116cc33d9d172863 affected
5.7 affected
… +8 more rows
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I. Basic Information for CVE-2025-68765

Vulnerability Information
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Vulnerability Title
mt76: mt7615: Fix memory leak in mt7615_mcu_wtbl_sta_add()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: mt76: mt7615: Fix memory leak in mt7615_mcu_wtbl_sta_add() In mt7615_mcu_wtbl_sta_add(), an skb sskb is allocated. If the subsequent call to mt76_connac_mcu_alloc_wtbl_req() fails, the function returns an error without freeing sskb, leading to a memory leak. Fix this by calling dev_kfree_skb() on sskb in the error handling path to ensure it is properly released.
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mt7615驱动中mt7615_mcu_wtbl_sta_add函数分配失败时未释放skb，可能导致内存泄漏。
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 99c457d902cf90bdc0df5d57e6156ec108711068 ~ d6c91fc732698642f70c688324c98551b97b412c -
Linux Linux 5.7 -

II. Public POCs for CVE-2025-68765

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III. Intelligence Information for CVE-2025-68765

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Other References for CVE-2025-68765 (4)

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-2025-68752 iavf: Implement settime64 with -EOPNOTSUPP
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-2025-68766 irqchip/mchp-eic: Fix error code in mchp_eic_domain_alloc()

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-68765

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