CVE-2026-72319

Summary

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

ipvs: ensure inner headers in ICMP errors are in headroom

Sashiko points out that after stripping the outer headers with pskb_pull() we should ensure the inner IP headers in ICMP errors from tunnels are present in the skb headroom for functions like ipv4_update_pmtu(), icmp_send() and IP_VS_DBG().

Also, add more checks for the length of the inner headers.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxf2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e < 19657b3a17b774ae4e2f2635b5ae8638c9344a40affected
LinuxLinuxf2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e < dac813101914c21219ac221a60a31a11bc90e7ecaffected
LinuxLinuxf2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e < dd22f74a09e25ca298ced0a3763ef353242cb78daffected
LinuxLinuxf2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e < 9bc9b95aee2b2e3f1301a16a67ee504960402875affected
LinuxLinuxf2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e < a735f9964a3d9ed97daf9b08507f8b5bcafe6326affected
LinuxLinuxf2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e < 8f48cfe657409fb5c7ba0521b14da6d47546d9cfaffected
LinuxLinuxf2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e < 92185d6f7819bc558939ae83de7b1abe90e3b5c2affected
LinuxLinuxf2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e < 3f7a535ff0fa627a0132803e4c2f903ceffcbc1caffected
LinuxLinux3.7affected
LinuxLinux0 < 3.7unaffected
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 <= *unaffected

Weaknesses

References