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CVE-2025-71315— drm/vkms: Convert to DRM's vblank timer

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drm/vkms模块将vblank定时器转换为DRM实现，移除了vkms_output结构中的对应hrtimer，vblank定时器通过drm_crtc_helper_funcs中的handle_vblank_timeout调用vkms的自定义超时代码。

AI Predicted 5.3 Difficulty: Trivial EPSS 0.11% · P1

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 6

VendorProduct Version RangeStatus
Linux Linux 3a0709928b172a4123a76078f70e0a706265690c< a0582cc923985c6b72fe871b5f7aa7c682bfc230 affected
3a0709928b172a4123a76078f70e0a706265690c< 02e2681ffe1addde1fc8c35d05657b16bfa79613 affected
4.19 affected
< 4.19 unaffected
6.18.34≤ 6.18.* unaffected
6.19≤ * unaffected
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I. Basic Information for CVE-2025-71315

Vulnerability Information
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Vulnerability Title
drm/vkms: Convert to DRM's vblank timer
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/vkms: Convert to DRM's vblank timer Replace vkms' vblank timer with the DRM implementation. The DRM code is identical in concept, but differs in implementation. Vblank timers are covered in vblank helpers and initializer macros, so remove the corresponding hrtimer in struct vkms_output. The vblank timer calls vkms' custom timeout code via handle_vblank_timeout in struct drm_crtc_helper_funcs.
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drm/vkms模块将vblank定时器转换为DRM实现，移除了vkms_output结构中的对应hrtimer，vblank定时器通过drm_crtc_helper_funcs中的handle_vblank_timeout调用vkms的自定义超时代码。
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 3a0709928b172a4123a76078f70e0a706265690c ~ a0582cc923985c6b72fe871b5f7aa7c682bfc230 -
Linux Linux 4.19 -

II. Public POCs for CVE-2025-71315

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III. Intelligence Information for CVE-2025-71315

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Patches & Fixes for CVE-2025-71315 (2)

Same Patch Batch · Linux · 2026-06-08 · 41 CVEs total

CVE-2026-46289 9.8 CRITICAL lib/scatterlist: fix length calculations in extract_kvec_to_sg
CVE-2026-46288 8.4 HIGH of: unittest: fix use-after-free in of_unittest_changeset()
CVE-2026-46307 8.3 HIGH wifi: ath5k: do not access array OOB
CVE-2026-46303 8.2 HIGH isofs: validate Rock Ridge CE continuation extent against volume size
CVE-2026-46275 7.8 HIGH Bluetooth: hci_uart: fix UAFs and race conditions in close and init paths
CVE-2026-46311 7.8 HIGH drm/amdgpu/userq: fix access to stale wptr mapping
CVE-2026-46280 7.8 HIGH lib: test_hmm: evict device pages on file close to avoid use-after-free
CVE-2026-46277 7.8 HIGH mm/zone_device: do not touch device folio after calling ->folio_free()
CVE-2026-46274 7.8 HIGH io-wq: check that the predecessor is hashed in io_wq_remove_pending()
CVE-2026-46306 7.5 HIGH flow_dissector: do not dissect PPPoE PFC frames
CVE-2026-46304 7.5 HIGH nvmet: avoid recursive nvmet-wq flush in nvmet_ctrl_free
CVE-2026-46299 7.0 HIGH hfsplus: fix held lock freed on hfsplus_fill_super()
CVE-2026-46296 spi: s3c64xx: fix NULL-deref on driver unbind
CVE-2026-46298 pseries/papr-hvpipe: Fix race with interrupt handler
CVE-2026-46301 spi: topcliff-pch: fix use-after-free on unbind
CVE-2026-46302 selinux: allow multiple opens of /sys/fs/selinux/policy
CVE-2026-46314 drm/v3d: Reject empty multisync extension to prevent infinite loop
CVE-2026-46305 staging: rtl8723bs: os_dep: avoid NULL pointer dereference in rtw_cbuf_alloc
CVE-2026-46313 media: intel/ipu6: fix error pointer dereference
CVE-2026-46308 pmdomain: mediatek: fix use-after-free in scpsys_get_bus_protection_legacy()

Showing top 20 of 41 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-71315

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