CVE-2026-89510

In the Linux kernel, the following vulnerability has been resolved: RDMA/cxgb4: Cancel reg_work before freeing device on remove c4iw_uld_state_change() queues reg_work to register the RDMA device. c4iw_remove() can free ctx->dev while this work is pending or running, leaving c4iw_register_device() accessing the freed device. Cancel reg_work before removing the device. The registration work can tear down ctx->dev when registration fails, so do not unregister or deallocate it again in that case. This issue was found by an in-house static analysis tool.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/320e5258a53af0abc5abd9eb01519a48bab2dee8
https://git.kernel.org/stable/c/3265d558dfafab8f12f5fba06ebbf15cae9f3225
https://git.kernel.org/stable/c/4681e731db07769846901cfabdd3e53f765eb9d3
https://git.kernel.org/stable/c/672ee1981db10569ec96030bddb322f18382ec04
https://git.kernel.org/stable/c/85f438382a865a4dc4c50e6b884310bb2b60fc4d
https://git.kernel.org/stable/c/a7100601aa1a39f799a566acce10db20eaf4b7f2
https://git.kernel.org/stable/c/e6e79e7be87c5ea92728060a3d7fb56890a91e45
https://git.kernel.org/stable/c/fe9c591026c576d8b1f72aab5e4cd67350530763

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-11 20:19

Updated : 2026-09-14 13:19

NVD link : CVE-2026-89510

Mitre link : CVE-2026-89510

CVE.ORG link : CVE-2026-89510

JSON object : View

Products Affected

No product.

CWE

No CWE.

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The registration work can\ntear down ctx->dev when registration fails, so do not unregister or\ndeallocate it again in that case.\n\nThis issue was found by an in-house static analysis tool."}], "lastModified": "2026-09-14T13:19:07.537", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}