Riskcovery

CVE-2026-68477

ipvs: fix more places with wrong ipv6 transport offsets

State
Published
Severity
9.8 Critical
Published
Aug 15, 2026
Updated
Oct 19, 2026
Reserved
Jul 30, 2026

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

ipvs: fix more places with wrong ipv6 transport offsets

Sashiko reports for more incorrect IPv6 transport offsets.

The app code for TCP was assuming IPv4 network header even after the ipvsh argument was provided. This can cause problems with apps over IPv6. As for the only official app in the kernel tree (FTP) this problem is harmless because we use Netfilter to mangle the FTP ports and we do not adjust the TCP seq numbers.

Also, provide correct offset of the ICMPV6 header in ip_vs_out_icmp_v6() for correct checksum checks when the IPv6 packet has extension headers.

Scores

CVSSScoreVectorSource
3.19.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLinux

Weaknesses

  • CWE-20 Improper Input Validation

Affected Products

ProductVersions
LinuxLinux
  • 2a3b791e6e1169f374224d164738e9f7be703d77 to before 613ce63711b8d431bba90781f133c39a21684f87Affected
  • 2a3b791e6e1169f374224d164738e9f7be703d77 to before 95d4511d81b2b37e5d2bdde5d912e48243eae517Affected
  • 2a3b791e6e1169f374224d164738e9f7be703d77 to before 3a9dc9b55b53d94613a587604b77d3b20024090cAffected
  • 2a3b791e6e1169f374224d164738e9f7be703d77 to before a3f0d5b605cd5da5c95279969fb8cea4e55cee5bAffected
  • 2a3b791e6e1169f374224d164738e9f7be703d77 to before 7350eb7ead172ae8024897d4b0f2e15c5318279cAffected
  • 2a3b791e6e1169f374224d164738e9f7be703d77 to before d4ec18f48ce78a3bf7c999ac908691007375fe99Affected
  • 2a3b791e6e1169f374224d164738e9f7be703d77 to before 905d7a363ade96a19f214815361e11981142c547Affected
  • 2a3b791e6e1169f374224d164738e9f7be703d77 to before b3fe4cbd583895987935a9bdad01c8f9d3a02310Affected
LinuxLinux
  • 2.6.28Affected
  • before 2.6.28Not affected
  • 5.10.261 through 5.10.*Not affected
  • 5.15.212 through 5.15.*Not affected
  • 6.1.178 through 6.1.*Not affected
  • 6.6.145 through 6.6.*Not affected
  • 6.12.97 through 6.12.*Not affected
  • 6.18.40 through 6.18.*Not affected
  • 7.1.5 through 7.1.*Not affected
  • 7.2 and laterNot affected

References

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