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

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-98565— net: dsa: mt7530: fix NULL dereference on unbind of MT7531 and MT7621

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.

在 Linux 内核中，以下漏洞已得到修复： net: dsa: mt7530：修复 MT7531 和 MT7621 在解绑时出现的空指针解引用问题 核心电源（core）和 I/O 电源（io）仅在 ID_MT7530 情况下被请求： 函数中的 和 函数中的 均通过交换机 ID 进行了条件保护。然而， 函数却无条件地禁用了这些电源。对于 MT7621 或 MT7531 设备，这两个指针在 调用后仍为 NULL，因此执行 或通过 sysfs 进行解绑时，会尝试对 NULL 指针调用 ，从而导致空指针解引用。

AI Predicted 7.8 Difficulty: Moderate

Possible ATT&CK Techniques 1 AI

T1069 · Permission Groups Discovery

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux ddda1ac116c852bb969541ed53cffef7255c4961< bd172580e624bac00d83abd5c4320d2e14d853bc affected
ddda1ac116c852bb969541ed53cffef7255c4961< e9a5298532780ecdd05c3220f3e1e3067b3537c3 affected
ddda1ac116c852bb969541ed53cffef7255c4961< 62c0e38b2e5034184d4502ce77bd178b29e59b83 affected
ddda1ac116c852bb969541ed53cffef7255c4961< aae2a1f1e3a0ac5eeb439262a2328a2a392413ac affected
ddda1ac116c852bb969541ed53cffef7255c4961< c2cdef41e0b4d8ed23a5b41e6ad4e64594e055e4 affected
5.1 affected
< 5.1 unaffected
6.6.158≤ 6.6.* unaffected
… +4 more rows
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-98565

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
net: dsa: mt7530: fix NULL dereference on unbind of MT7531 and MT7621
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: dsa: mt7530: fix NULL dereference on unbind of MT7531 and MT7621 The core and io supplies are only requested for ID_MT7530: both the devm_regulator_get() in probe and the regulator_enable() in mt7530_setup() are guarded by the switch id, but mt7530_remove() disables them unconditionally. On an MT7621 or an MT7531 both pointers are still NULL from devm_kzalloc(), so rmmod or a sysfs unbind calls regulator_disable() on NULL.
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

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux ddda1ac116c852bb969541ed53cffef7255c4961 ~ bd172580e624bac00d83abd5c4320d2e14d853bc -
Linux Linux 5.1 -

II. Public POCs for CVE-2026-98565

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

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-98565

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-98565 (5)

Same Patch Batch · Linux · 2026-10-18 · 436 CVEs total

CVE-2026-98583 nfc: nfcmrvl: validate helper command length before pull
CVE-2026-98570 net: ipv6: keep room for the mac header in dst_dev_overhead()
CVE-2026-98571 net: stmmac: clear stale buf->page after recycling on skb build failure
CVE-2026-98572 bpf: Fix immediate JMP JEQ/JNE on MIPS32
CVE-2026-98573 net: skbuff: fix pull-bound underflow in skb_checksum_setup_ipv6()
CVE-2026-98574 net: bcmgenet: stop Tx NAPI before disabling the queues
CVE-2026-98575 nfc: pn533: fix OOB read in pn533_acr122_is_rx_frame_valid()
CVE-2026-98576 nfc: llcp: fix slab-out-of-bounds reads when logging service names
CVE-2026-98577 nfc: llcp: fix WKS SAP hijacking via prefix match in nfc_llcp_wks_sap()
CVE-2026-98578 nfc: st21nfca: validate ISO15693 inventory length
CVE-2026-98579 nfc: llcp: fix sdreq TLV list leak on parse/alloc/send failure
CVE-2026-98580 nfc: llcp: Fix race condition in accept_queue lifecycle
CVE-2026-98581 nfc: llcp: Fix list corruption / refcount desync in nfc_llcp_recv_dm()
CVE-2026-98582 nfc: st21nfca: validate received frame size
CVE-2026-98594 tg3: clean up PHYLIB resources on probe failure
CVE-2026-98591 bpf: Fix bounds check for skb-backed dynptrs
CVE-2026-98592 net: spacemit: clear TX descriptor on fragment mapping failure
CVE-2026-98593 s390/debug: Fix NULL pointer dereference in debug_info_copy()
CVE-2026-98590 bpf: Fix bpf_sock context code generation
CVE-2026-98595 udp: remove a disconnected socket from the 4-tuple hash table

Showing top 20 of 436 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-98565

No comments yet

Leave a comment