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CVE-2026-98594— tg3: clean up PHYLIB resources on probe failure

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： tg3：在探测失败时清理 PHYLIB 资源 tg3_get_invariants() 函数可为使用 PHYLIB 的设备注册 MDIO 总线并连接 PHY 设备。如果后续调用的 tg3_init_one() 函数失败，其通用错误处理路径会释放内存映射和 netdev 结构，却未撤销上述 PHYLIB 资源的注册与连接。 修复方案是在执行剩余清理操作之前，先断开 PHY 连接并注销 MDIO 总线。同时，使用 USE_PHYLIB 宏保护 PHY 清理代码，使其与 tg

AI Predicted 5.5 Difficulty: Moderate EPSS 0.21% · P11

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 158d7abdae85e9ac43d99780c372d79c119f7626< ce86d6929d03e6b0abcb781dfa50f9f0816bff78 affected
158d7abdae85e9ac43d99780c372d79c119f7626< a449eedb3b1eb5b8b1f5ed116a1bfe85eaaf81df affected
158d7abdae85e9ac43d99780c372d79c119f7626< 0844402326d4e48a28688f93ec6442e93bb442fa affected
158d7abdae85e9ac43d99780c372d79c119f7626< e766321288b507afb70d2bfef6ba443213329f79 affected
158d7abdae85e9ac43d99780c372d79c119f7626< d2abb0013b933d59ee441185df0eca9e8c0b33eb affected
158d7abdae85e9ac43d99780c372d79c119f7626< 6515c41503eef849abd2c7364f34e4bb25110f90 affected
158d7abdae85e9ac43d99780c372d79c119f7626< b6c0c757c65893ad7bb17e8bcf33cdd8257d7b3d affected
158d7abdae85e9ac43d99780c372d79c119f7626< a92e1a412c53dc0d9ad639e7abf8b3fc70a5b6ad affected
… +10 more rows
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I. Basic Information for CVE-2026-98594

Vulnerability Information
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Vulnerability Title
tg3: clean up PHYLIB resources on probe failure
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: tg3: clean up PHYLIB resources on probe failure tg3_get_invariants() can register an MDIO bus and connect a PHY for USE_PHYLIB devices. If tg3_init_one() later fails, its common error path releases the mappings and netdev without undoing those PHYLIB resources. Disconnect the PHY and unregister the MDIO bus before the remaining teardown. Guard PHY cleanup with USE_PHYLIB to match tg3_phy_init(), and call tg3_mdio_fini() unconditionally to match tg3_mdio_init(). The existing IS_CONNECTED and MDIOBUS_INITED flags make both helpers safe when initialization only completed partially. This issue was identified during our ongoing static-analysis research while reviewing kernel code.
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 158d7abdae85e9ac43d99780c372d79c119f7626 ~ ce86d6929d03e6b0abcb781dfa50f9f0816bff78 -
Linux Linux 2.6.27 -

II. Public POCs for CVE-2026-98594

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III. Intelligence Information for CVE-2026-98594

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Patches & Fixes for CVE-2026-98594 (8)

Same Patch Batch · Linux · 2026-10-18 · 435 CVEs total

CVE-2026-98720 KVM: nVMX: Force MSR bitmap refresh if runtime eVMCS controls are modified
CVE-2026-98733 Bluetooth: hci_core: Serialize fragmented ISO packet queueing
CVE-2026-98732 Bluetooth: btintel: fix buffer over-read in btintel_hw_error()
CVE-2026-98731 Bluetooth: btintel_pcie: fix plen overflow in btintel_pcie_recv_frame()
CVE-2026-98730 Bluetooth: btintel_pcie: reject oversized TX packets in send_frame()
CVE-2026-98729 x86/mm: Don't apply va_align to hugetlb mappings on AMD F15h
CVE-2026-98728 tpm: fix off-by-four bounds check in tpm2_get_random()
CVE-2026-98727 nvme-multipath: set BLK_FEAT_ZONED only after the zone info is known
CVE-2026-98726 nvme-multipath: fix underflow in ANA log bounds checks
CVE-2026-98725 nvmet-auth: fix out-of-bounds write in nvmet_auth_challenge()
CVE-2026-98724 nvmet: pci-epf: reject too-short SGL segments
CVE-2026-98723 nvmet: copy the hostid into the ctrl before creating PR pc_refs
CVE-2026-98722 mtd: block2mtd: Fix divide error when erase_size is zero
CVE-2026-98721 mtd: rawnand: cadence: Initialize IRQ state before requesting IRQ
CVE-2026-98709 wifi: mac80211: count only matching reservations in reserved switch
CVE-2026-98712 KVM: arm64: vgic: Take a refcount on IRQs referenced by last_lr_irq
CVE-2026-98711 wifi: cw1200: fix TX padding OOB read leaking heap data to device
CVE-2026-98710 wifi: iwlegacy: 3945: free EEPROM data on remove
CVE-2026-98713 KVM: arm64: Apply the fine-grained UNDEFs without FEAT_FGT
CVE-2026-98707 wifi: mac80211: shut down RX BA session timer on teardown

Showing top 20 of 435 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-98594

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