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CVE-2025-68766— irqchip/mchp-eic: Fix error code in mchp_eic_domain_alloc()

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mchp-eic中断控制器驱动中mchp_eic_domain_alloc函数未设置错误代码，可能导致越界访问。

AI Predicted 7.8 Difficulty: Moderate EPSS 0.19% · P8

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux 00fa3461c86dd289b441d4d5a6bb236064bd207b< 324c60a67c4b9668497940f667db14d216cc7b1b affected
00fa3461c86dd289b441d4d5a6bb236064bd207b< c21c606ad398eeb86a0f3aaff9ba4f2665e286c6 affected
00fa3461c86dd289b441d4d5a6bb236064bd207b< 3873afcb57614c1aaa5b6715554d6d1c22cac95a affected
00fa3461c86dd289b441d4d5a6bb236064bd207b< 09efe7cfbf919c4d763bc425473fcfee0dc98356 affected
00fa3461c86dd289b441d4d5a6bb236064bd207b< efd65e2e2fd96f7aaa5cb07d79bbbfcfc80aa552 affected
00fa3461c86dd289b441d4d5a6bb236064bd207b< 7dbc0d40d8347bd9de55c904f59ea44bcc8dedb7 affected
5.16 affected
< 5.16 unaffected
… +6 more rows
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I. Basic Information for CVE-2025-68766

Vulnerability Information
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Vulnerability Title
irqchip/mchp-eic: Fix error code in mchp_eic_domain_alloc()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: irqchip/mchp-eic: Fix error code in mchp_eic_domain_alloc() If irq_domain_translate_twocell() sets "hwirq" to >= MCHP_EIC_NIRQ (2) then it results in an out of bounds access. The code checks for invalid values, but doesn't set the error code. Return -EINVAL in that case, instead of returning success.
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mchp-eic中断控制器驱动中mchp_eic_domain_alloc函数未设置错误代码，可能导致越界访问。
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 00fa3461c86dd289b441d4d5a6bb236064bd207b ~ 324c60a67c4b9668497940f667db14d216cc7b1b -
Linux Linux 5.16 -

II. Public POCs for CVE-2025-68766

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III. Intelligence Information for CVE-2025-68766

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Other References for CVE-2025-68766 (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-2025-68765 mt76: mt7615: Fix memory leak in mt7615_mcu_wtbl_sta_add()

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-68766

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