CVE-2026-89510
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- No patch or advisory is linked yet. Look at mitigations or restrict exposure.
Timeline
- ReservedThe CVE id was reserved by its CNA
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.2% in the next 30 days (EPSS).
- Severity: 7.8 HIGH (CVSS).
- Fix: none linked yet, which raises it.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Record status
- Received
Attack profile CVSS 3.1 · 7.8
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-89510.md and follow it. Check whether this project is affected by CVE-2026-89510. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
References
- 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