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CVE-2026-43498— accel/ivpu: Disallow re-exporting imported GEM objects

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accel/ivpu中缺少对导入GEM对象重新导出的检查，可能导致缓冲区标志设置丢失，导致设备访问错误和数据损坏。

CVSS 7.8 · High EPSS 0.11% · P2

Possible ATT&CK Techniques 1 AI

T1055 · Process Injection

Affected Version Matrix 6

VendorProduct Version RangeStatus
Linux Linux 57557964b582238d5ee4b8538d1c4694f91c2186< 3756043dd695bba34cc728cdc5688dcb49ac8043 affected
57557964b582238d5ee4b8538d1c4694f91c2186< 7dd57d7a6350770dfc283287125c409e995200e0 affected
6.19 affected
< 6.19 unaffected
7.0.7≤ 7.0.* unaffected
7.1≤ * unaffected
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I. Basic Information for CVE-2026-43498

Vulnerability Information
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Vulnerability Title
accel/ivpu: Disallow re-exporting imported GEM objects
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: accel/ivpu: Disallow re-exporting imported GEM objects Prevent re-exporting of imported GEM buffers by adding a custom prime_handle_to_fd callback that checks if the object is imported and returns -EOPNOTSUPP if so. Re-exporting imported GEM buffers causes loss of buffer flags settings, leading to incorrect device access and data corruption.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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accel/ivpu中缺少对导入GEM对象重新导出的检查，可能导致缓冲区标志设置丢失，导致设备访问错误和数据损坏。
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 57557964b582238d5ee4b8538d1c4694f91c2186 ~ 3756043dd695bba34cc728cdc5688dcb49ac8043 -
Linux Linux 6.19 -

II. Public POCs for CVE-2026-43498

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III. Intelligence Information for CVE-2026-43498

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Patches & Fixes for CVE-2026-43498 (2)

Same Patch Batch · Linux · 2026-05-21 · 8 CVEs total

CVE-2026-43501 9.8 CRITICAL ipv6: rpl: reserve mac_len headroom when recompressed SRH grows
CVE-2026-43495 8.8 HIGH net: wwan: t7xx: validate port_count against message length in t7xx_port_enum_msg_handler
CVE-2026-43502 7.8 HIGH net/rds: handle zerocopy send cleanup before the message is queued
CVE-2026-43499 7.8 HIGH rtmutex: Use waiter::task instead of current in remove_waiter()
CVE-2026-43494 7.8 HIGH net/rds: reset op_nents when zerocopy page pin fails
CVE-2026-43497 7.3 HIGH fbdev: udlfb: add vm_ops to dlfb_ops_mmap to prevent use-after-free
CVE-2026-43496 net/sched: sch_red: Replace direct dequeue call with peek and qdisc_dequeue_peeked

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-43498

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