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CVE-2026-98896— thunderbolt: Keep the domain reference while processing hotplug

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： thunderbolt：在处理热插拔时保持域引用 我们在一个工作队列中处理热插拔事件，该工作队列可能在 移除域之后才运行。例如，如果用户在插入设备路由器的同时卸载了驱动程序，系统可能已经调度的 将会执行。为了避免在此情况下出现可能的释放后使用（UAF）漏洞，我们在 中调度热插拔处理程序之前，先获取域的引用。

AI Predicted 7.8 Difficulty: Moderate

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 06b2e894e640f6a3dbeb536a2d26d72426b26a46 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 1d991f749a8255ee2ecc6307e2f27354ab631827 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< e8656465d08ed832e120c9cca4a6d0c8ccb45698 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< b61a4ae2ec6a0d363615d01106e0a2d284133a38 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 04df2985159e381c88a923fae1bec2f8d0272412 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 0a87af3b1e3aa2e09d160848daf0c39e765b73de affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 138ec65b2c761f065b19d115aed2b8246fc272f5 affected
< 5.10.271 affected
… +12 more rows
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I. Basic Information for CVE-2026-98896

Vulnerability Information
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Vulnerability Title
thunderbolt: Keep the domain reference while processing hotplug
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Keep the domain reference while processing hotplug We process hotplug events in a workqueue that may run after the domain has been removed by tb_domain_remove(). For example if user unloads the driver while at the same time plugging a device router we may have scheduled tb_handle_hotplug() to run. Avoid possible UAF in this case by taking the domain reference before scheduling the hotplug handler in tb_queue_hotplug().
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 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 ~ 06b2e894e640f6a3dbeb536a2d26d72426b26a46 -
Linux Linux 5.10.271 ~ 5.10.* -

II. Public POCs for CVE-2026-98896

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III. Intelligence Information for CVE-2026-98896

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Patches & Fixes for CVE-2026-98896 (7)

Same Patch Batch · Linux · 2026-10-23 · 218 CVEs total

CVE-2026-98938 rust: irq: pass RegistrationInner as cookie to request_irq
CVE-2026-98951 riscv: ptrace: Zero-initialize regset buffers before copyin
CVE-2026-98950 flow_dissector: avoid u16 truncation of hlen in bpf_flow_dissect()
CVE-2026-98949 drm/imagination: Fix reference and vm_bo handling in remap()
CVE-2026-98948 mlxsw: spectrum_flower: Fix port range register leak in tmplt_create()
CVE-2026-98947 vsock: Fix memory leak in vmci_transport_recv_dgram_cb()
CVE-2026-98946 drm/vc4: Disable the V3D interrupt across runtime suspend
CVE-2026-98945 HID: steam: Rearrange teardown sequence
CVE-2026-98944 HID: steam: Refactor registration
CVE-2026-98943 HID: steam: Clean up locking
CVE-2026-98942 sched_ext: Build the cid tables privately and publish them with RCU
CVE-2026-98941 ext4: don't enable large folios on encrypted inodes
CVE-2026-98940 ASoC: qcom: lpass-cpu: use DAI table index for playback constraints
CVE-2026-98939 x86/mm: Drop unnecessary PMD page copy when freeing
CVE-2026-98927 KVM: arm64: nv: Fix life cycle of the nested_mmus array
CVE-2026-98930 KVM: s390: Fix IRQ injection with SIGP Stop and Store Status
CVE-2026-98929 macsec: initialize SecY before registering the netdevice
CVE-2026-98928 KVM: arm64: Derive GUEST_HAS_SVE from the SVE feature bit at EL2
CVE-2026-98931 mtd: spinand: fix NULL pointer dereference with no ECC engine
CVE-2026-98926 drm/amd/display: Remove sink usage from DPMS

Showing top 20 of 218 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-98896

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