Paper/Archive/CVE-2026-68477

CVE-2026-68477

Linux Linux — ipvs: fix more places with wrong ipv6 transport offsets

CVSS 9.8 (CNA)9.8 / 10 × 3029.4 Not in CISA KEV+300.0 EPSS percentile 53.6.536 × 2010.7 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource

Linux2a3b791e6e1169f374224d164738e9f7be703d77 – < 613ce63711b8d431bba90781f133c39a21684f87613ce63711b8d431bba90781f133c39a21684f87CNA

Linux2a3b791e6e1169f374224d164738e9f7be703d77 – < 95d4511d81b2b37e5d2bdde5d912e48243eae51795d4511d81b2b37e5d2bdde5d912e48243eae517CNA

Linux2a3b791e6e1169f374224d164738e9f7be703d77 – < 3a9dc9b55b53d94613a587604b77d3b20024090c3a9dc9b55b53d94613a587604b77d3b20024090cCNA

Linux2a3b791e6e1169f374224d164738e9f7be703d77 – < a3f0d5b605cd5da5c95279969fb8cea4e55cee5ba3f0d5b605cd5da5c95279969fb8cea4e55cee5bCNA

Linux2a3b791e6e1169f374224d164738e9f7be703d77 – < 7350eb7ead172ae8024897d4b0f2e15c5318279c7350eb7ead172ae8024897d4b0f2e15c5318279cCNA

Linux2a3b791e6e1169f374224d164738e9f7be703d77 – < d4ec18f48ce78a3bf7c999ac908691007375fe99d4ec18f48ce78a3bf7c999ac908691007375fe99CNA

Linux2a3b791e6e1169f374224d164738e9f7be703d77 – < 905d7a363ade96a19f214815361e11981142c547905d7a363ade96a19f214815361e11981142c547CNA

Linux2a3b791e6e1169f374224d164738e9f7be703d77 – < b3fe4cbd583895987935a9bdad01c8f9d3a02310b3fe4cbd583895987935a9bdad01c8f9d3a02310CNA

Linux2.6.28–CNA

Scores by source

Linux (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refgit.kernel.org/stable/c/613ce63711b8d431bba90781f133c39a21684f87 refgit.kernel.org/stable/c/95d4511d81b2b37e5d2bdde5d912e48243eae517 refgit.kernel.org/stable/c/3a9dc9b55b53d94613a587604b77d3b20024090c refgit.kernel.org/stable/c/a3f0d5b605cd5da5c95279969fb8cea4e55cee5b refgit.kernel.org/stable/c/7350eb7ead172ae8024897d4b0f2e15c5318279c refgit.kernel.org/stable/c/d4ec18f48ce78a3bf7c999ac908691007375fe99 refgit.kernel.org/stable/c/905d7a363ade96a19f214815361e11981142c547 refgit.kernel.org/stable/c/b3fe4cbd583895987935a9bdad01c8f9d3a02310