CVE-2026-89510

HIGH 7.8

RDMA/cxgb4: Cancel reg_work before freeing device on remove

CVSS Score

7.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

Vendor	linux
Product	linux
Ecosystems	Linux Kernel
Industries	Technology
Published	Sep 11, 2026
Last Updated	Sep 14, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Linux / Linux

1c8f1da5d851b92aeb81dbbb9ebd516f6e2588f5 < e6e79e7be87c5ea92728060a3d7fb56890a91e45 1c8f1da5d851b92aeb81dbbb9ebd516f6e2588f5 < 672ee1981db10569ec96030bddb322f18382ec04 1c8f1da5d851b92aeb81dbbb9ebd516f6e2588f5 < 4681e731db07769846901cfabdd3e53f765eb9d3 1c8f1da5d851b92aeb81dbbb9ebd516f6e2588f5 < 3265d558dfafab8f12f5fba06ebbf15cae9f3225 1c8f1da5d851b92aeb81dbbb9ebd516f6e2588f5 < fe9c591026c576d8b1f72aab5e4cd67350530763 1c8f1da5d851b92aeb81dbbb9ebd516f6e2588f5 < 85f438382a865a4dc4c50e6b884310bb2b60fc4d 1c8f1da5d851b92aeb81dbbb9ebd516f6e2588f5 < 320e5258a53af0abc5abd9eb01519a48bab2dee8 1c8f1da5d851b92aeb81dbbb9ebd516f6e2588f5 < a7100601aa1a39f799a566acce10db20eaf4b7f2

Linux / Linux

4.15

References

NVD ↗ CVE.org ↗ EPSS Data ↗