UpHeron
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Servers and applications

CVE-2026-98374

tcp: fix use-after-free of retransmit_skb_hint in tcp_send_synack()

Severity
High 8.8
Published
7 Oct 2026
Last changed
24 Oct 2026
Added to UpHeron
3 Nov 2026
Fixed in
5.15.222, 6.1.189, 6.6.158, 6.12.112, 6.18.55, 7.2.9
Sources
CVE Program

Affected software

SoftwareAffected versions
Linux kernelServers and applications · cna:linux|linux
  • From 5.11 before 5.15.222
  • From 5.16 before 6.1.189
  • From 6.2 before 6.6.158
  • From 6.7 before 6.12.112
  • From 6.13 before 6.18.55
  • From 6.19 before 7.2.9

References

  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-98374