7.5

CVE-2026-98174: linux

CVSS: 7.5v3.1HighReceived
AliasesUBUNTU-CVE-2026-98174DEBIAN-CVE-2026-98174
Published 06-10-2026Last modified 19-10-2026
Open JSON

Vulnerability summary

CVE-2026-98174 is a high (CVSS 7.5) vulnerability in linux. EPSS estimates a 0.36% chance of exploitation in the next 30 days, higher than 29.1% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.36%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2026:12131-1

Timeline

  1. 06-10-2026
    PublishedVulnerability first disclosed.
  2. 19-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix rlist race and missing initialization TCP_Server_Info.rlist is allocated via kzalloc which zeros both ->next and ->prev to NULL instead of pointing to itself, making list_empty() always return false and list_add() dereference a NULL ->prev pointer. Also, cifs_signal_cifsd_for_reconnect() can be called concurrently from multiple cifsd threads, allowing the same server's rlist node to be added twice into the local list, corrupting it.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.36%

Chance of exploitation in the next 30 days

Percentile

29%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

06-10-202621-10-2026
EPSS score
0.36%

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

Ubuntu169 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)
Debian1 product
  • linuxAll versions (No fix recorded) | < 6.12.113-1 | < 7.2.8-1
Linux1 product
  • linux≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < b5f924ffbfa976e4b97f17e8132c595b97482c2d | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 5a8f82f9c5839389cf4036029dd75a9911049e83 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 04082b1833856cb9ed87e0d3d5f04cbf836cf7da | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < c037d6bde3dd5fa00b017b6b98a5389ec0ebc02f | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 5f270f091256da1338c3631083e15d7f83cc05e1 | < 6.6.158 | < 6.12.112 | < 6.18.54 | < 7.2.8

3 vendors · 171 products

References

9 links