Red Hat Security Advisory: kpatch-patch-4_18_0-553, kpatch-patch-4_18_0-553_16_1, and kpatch-patch-4_18_0-553_30_1
Affects Red HatSource GCVE Database
Not known to be exploited.
Data as of 5 Nov 2026, 14:48 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
Exploitation evidence
Disclosed: evidence found.
CVE published 8 Jan 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.
What to do
AI-suggested
Red Hat has released official kernel live patch modules to fix this vulnerability. Users should apply the kpatch-patch-4_18_0-553 updates provided by Red Hat for their respective architectures and reboot the system to activate the fix. Detailed instructions are available in the Red Hat advisory. No additional mitigation steps are required beyond applying the update and rebooting.
Description
A security update for Red Hat Enterprise Linux 8 addresses a race condition vulnerability in the kernel's multipath TCP (mptcp) implementation. The flaw, identified as CVE-2024-53122, involves racing subflow creation in the mptcp_rcv_space_adjust function. This issue is fixed by kernel live patch modules that can be applied without rebooting, though a reboot is required for the update to take full effect. The update is rated as important by Red Hat Product Security.