Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1000 CNY

100.0%
Buy Us a Coffee

CVE-2025-68760— iommu/amd: Fix potential out-of-bounds read in iommu_mmio_show

EPSS 0.03% · P9
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2025-68760

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
iommu/amd: Fix potential out-of-bounds read in iommu_mmio_show
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Fix potential out-of-bounds read in iommu_mmio_show In iommu_mmio_write(), it validates the user-provided offset with the check: `iommu->dbg_mmio_offset > iommu->mmio_phys_end - 4`. This assumes a 4-byte access. However, the corresponding show handler, iommu_mmio_show(), uses readq() to perform an 8-byte (64-bit) read. If a user provides an offset equal to `mmio_phys_end - 4`, the check passes, and will lead to a 4-byte out-of-bounds read. Fix this by adjusting the boundary check to use sizeof(u64), which corresponds to the size of the readq() operation.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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amd iommu驱动中iommu_mmio_write函数边界检查不当，可能导致越界读取。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux 7a4ee419e8c144b747a8915856e91a034d7c8f34 ~ b959df804c33913dbfdb90750f2d693502b3d126 -
LinuxLinux 6.17 -

II. Public POCs for CVE-2025-68760

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2025-68760

请登录查看更多情报信息。

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

CVE-2025-68752iavf: Implement settime64 with -EOPNOTSUPP
CVE-2025-68751s390/fpu: Fix false-positive kmsan report in fpu_vstl()
CVE-2025-68753ALSA: firewire-motu: add bounds check in put_user loop for DSP events
CVE-2025-68754rtc: amlogic-a4: fix double free caused by devm
CVE-2025-68755staging: most: remove broken i2c driver
CVE-2025-68756block: Use RCU in blk_mq_[un]quiesce_tagset() instead of set->tag_list_lock
CVE-2025-68757drm/vgem-fence: Fix potential deadlock on release
CVE-2025-68758backlight: led-bl: Add devlink to supplier LEDs
CVE-2025-68759wifi: rtl818x: Fix potential memory leaks in rtl8180_init_rx_ring()
CVE-2025-68761hfs: fix potential use after free in hfs_correct_next_unused_CNID()
CVE-2025-68762net: netpoll: initialize work queue before error checks
CVE-2025-68763crypto: starfive - Correctly handle return of sg_nents_for_len
CVE-2025-68765mt76: mt7615: Fix memory leak in mt7615_mcu_wtbl_sta_add()
CVE-2025-68764NFS: Automounted filesystems should inherit ro,noexec,nodev,sync flags
CVE-2025-68766irqchip/mchp-eic: Fix error code in mchp_eic_domain_alloc()

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-68760

No comments yet

Leave a comment