CVE-2026-98174 Linux Kernel smb client - Race Condition

Linux kernel smb client contains a race condition and missing initialization in TCP_Server_Info.rlist, caused by improper list pointer handling and concurrent access, letting attackers cause list corruption, exploit requires concurrent cifsd threads.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.36% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Race Condition
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
6 October 2026
Updated
15 October 2026

Vendor fix

Update to the latest Linux kernel version with the fix applied.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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