7.8

CVE-2026-89510: linux

CVSS: 7.8v3.1HighReceived
AliasesUBUNTU-CVE-2026-89510DEBIAN-CVE-2026-89510
Published 11-09-2026Last modified 19-10-2026
Open JSON

Vulnerability summary

CVE-2026-89510 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 6.7% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.18%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 11 · Related 11
OPENSUSE-SU-2026:11880-1OPENSUSE-SU-2026:22091-1SUSE-SU-2026:24179-1SUSE-SU-2026:24181-1SUSE-SU-2026:24182-1SUSE-SU-2026:24184-1

Timeline

  1. 11-09-2026
    PublishedVulnerability first disclosed.
  2. 19-10-2026
    Last modifiedVulnerability information updated.

Description

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 metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.18%

Chance of exploitation in the next 30 days

Percentile

7%

Versus all other CVEs

30-day change

0.00 pp

From 0.18% on 22-09-2026

22-09-202622-10-2026
EPSS score
0.18%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu168 products
  • linuxAll versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linuxAll versions (No fix recorded) | < 6.1.190-1 | < 6.12.111-1 | < 7.2.6-1
  • linux-6.12< 6.12.111-1~deb12u1
Linux1 product
  • linux≥ 1c8f1da5d851b92aeb81dbbb9ebd516f6e2588f5, < e6e79e7be87c5ea92728060a3d7fb56890a91e45 | ≥ 1c8f1da5d851b92aeb81dbbb9ebd516f6e2588f5, < 672ee1981db10569ec96030bddb322f18382ec04 | ≥ 1c8f1da5d851b92aeb81dbbb9ebd516f6e2588f5, < 4681e731db07769846901cfabdd3e53f765eb9d3 | ≥ 1c8f1da5d851b92aeb81dbbb9ebd516f6e2588f5, < 3265d558dfafab8f12f5fba06ebbf15cae9f3225 | ≥ 1c8f1da5d851b92aeb81dbbb9ebd516f6e2588f5, < fe9c591026c576d8b1f72aab5e4cd67350530763 | ≥ 1c8f1da5d851b92aeb81dbbb9ebd516f6e2588f5, < 85f438382a865a4dc4c50e6b884310bb2b60fc4d | ≥ 1c8f1da5d851b92aeb81dbbb9ebd516f6e2588f5, < 320e5258a53af0abc5abd9eb01519a48bab2dee8 | ≥ 1c8f1da5d851b92aeb81dbbb9ebd516f6e2588f5, < a7100601aa1a39f799a566acce10db20eaf4b7f2 | 4.15

3 vendors · 171 products

References

13 links
Show all 13 references