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

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-80750— pmdomain: mediatek: fix remaining %pOF after of_node_put()

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基金会开源的一个操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于pmdomain的mediatek驱动在处理设备节点时，错误路径在检查regmap查找结果前释放设备节点，后续使用%pOF格式化时可能引用已释放的设备节点，导致释放后重用。

CVSS 8.4 · High EPSS 0.18% · P8

Possible ATT&CK Techniques 1 AI

T1217 · Browser Information Discovery

Affected Version Matrix 8

VendorProduct Version RangeStatus
Linux Linux c29345fa5f66bea0790cf2219f57b974d4fc177b< 970b9c83a07c405fdd32bcce7cc4c9e670e58875 affected
c29345fa5f66bea0790cf2219f57b974d4fc177b< 10bf2d7261d7f724ed43a09eea4c90c19c0230a0 affected
c29345fa5f66bea0790cf2219f57b974d4fc177b< 3e013bc8b941bd52c8e3a99798d0ae8792cb71ca affected
6.18 affected
< 6.18 unaffected
6.18.46≤ 6.18.* unaffected
7.1.10≤ 7.1.* unaffected
7.2≤ * unaffected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-80750

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
pmdomain: mediatek: fix remaining %pOF after of_node_put()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: pmdomain: mediatek: fix remaining %pOF after of_node_put() scpsys_get_bus_protection_legacy() looks up several legacy bus protection regmaps from device-tree nodes. Two error paths put the device node before checking whether the regmap lookup failed, but still pass that node to dev_err_probe() with %pOF on failure. If of_node_put() drops the last reference, the later %pOF formatting can dereference a freed device node. Keep the node reference until after the error message has been emitted in the infracfg and SMI lookup paths. Also drop the SMI node before returning when the SMI phandle is missing.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/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基金会开源的一个操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于pmdomain的mediatek驱动在处理设备节点时，错误路径在检查regmap查找结果前释放设备节点，后续使用%pOF格式化时可能引用已释放的设备节点，导致释放后重用。
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 c29345fa5f66bea0790cf2219f57b974d4fc177b ~ 970b9c83a07c405fdd32bcce7cc4c9e670e58875 -
Linux Linux 6.18 -

II. Public POCs for CVE-2026-80750

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-80750

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-80750 (2)

Same Patch Batch · Linux · 2026-09-03 · 32 CVEs total

CVE-2026-80726 9.3 CRITICAL KVM: x86/mmu: WARN and clear role.invalid when creating a child shadow page
CVE-2026-80734 8.8 HIGH btrfs: initialize inode mapping flags for cached inodes
CVE-2026-80753 8.4 HIGH ovpn: run deferred work on a module-owned workqueue
CVE-2026-80752 8.4 HIGH Input: psxpad-spi - set driver data before use
CVE-2026-80745 8.4 HIGH regulator: fp9931: Fix VPOS/VNEG voltage selector table
CVE-2026-80747 8.0 HIGH drm/amdkfd: Add bounds check for CRAT subtype length
CVE-2026-80737 7.8 HIGH serial: amba-pl011: synchronize DMA teardown
CVE-2026-80732 7.8 HIGH ata: pata_sl82c105: fix bridge revision use-after-free
CVE-2026-80731 7.8 HIGH net: remove CAP_SYS_RAWIO zero-padding in dev_validate_header
CVE-2026-80736 7.8 HIGH thunderbolt: Fix bandwidth group reservation indexing
CVE-2026-80748 7.8 HIGH mmc: loongson2: Fix sg iteration in data reorder functions
CVE-2026-80751 7.8 HIGH pmdomain: mediatek: mfg: initialize prev_o in mtk_mfg_attach_dev()
CVE-2026-80754 7.8 HIGH Input: synaptics-rmi4 - fix F55 transmitter electrode count typo
CVE-2026-80735 7.3 HIGH ovpn: ensure socket is owned by ovpn before deref sk_user_data
CVE-2026-80738 7.3 HIGH bpf: Check sk_state before sk_protocol in bpf_tcp_*_syncookie
CVE-2026-80749 7.1 HIGH drm/connector/hdmi: Fix out of bounds memory read
CVE-2026-80741 7.1 HIGH drm/log: Fix out-of-bounds read on empty message length
CVE-2026-80727 x86/mce: Set up the polling timer before CMCI discovery
CVE-2026-80740 drm/log: Fix infinite loop when scale is too large for display
CVE-2026-80733 net: remove WARN_ON_ONCE() from sk_mc_loop()

Showing top 20 of 32 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-80750

No comments yet

Leave a comment