CVE-2026-68477

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinux2a3b791e6e1169f374224d164738e9f7be703d77 < 613ce63711b8d431bba90781f133c39a21684f87affected
LinuxLinux2a3b791e6e1169f374224d164738e9f7be703d77 < 95d4511d81b2b37e5d2bdde5d912e48243eae517affected
LinuxLinux2a3b791e6e1169f374224d164738e9f7be703d77 < 3a9dc9b55b53d94613a587604b77d3b20024090caffected
LinuxLinux2a3b791e6e1169f374224d164738e9f7be703d77 < a3f0d5b605cd5da5c95279969fb8cea4e55cee5baffected
LinuxLinux2a3b791e6e1169f374224d164738e9f7be703d77 < 7350eb7ead172ae8024897d4b0f2e15c5318279caffected
LinuxLinux2a3b791e6e1169f374224d164738e9f7be703d77 < d4ec18f48ce78a3bf7c999ac908691007375fe99affected
LinuxLinux2a3b791e6e1169f374224d164738e9f7be703d77 < 905d7a363ade96a19f214815361e11981142c547affected
LinuxLinux2a3b791e6e1169f374224d164738e9f7be703d77 < b3fe4cbd583895987935a9bdad01c8f9d3a02310affected
LinuxLinux2.6.28affected
LinuxLinux0 < 2.6.28unaffected
LinuxLinux5.10.261 <= 5.10.*unaffected
LinuxLinux5.15.212 <= 5.15.*unaffected
LinuxLinux6.1.178 <= 6.1.*unaffected
LinuxLinux6.6.145 <= 6.6.*unaffected
LinuxLinux6.12.97 <= 6.12.*unaffected
LinuxLinux6.18.40 <= 6.18.*unaffected
LinuxLinux7.1.5 <= 7.1.*unaffected
LinuxLinux7.2-rc4 <= *unaffected

Weaknesses

References