Description
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.
References8
- git.kernel.org/stable/c/19657b3a17b774ae4e2f2635b5ae8638c9344a40
- git.kernel.org/stable/c/3f7a535ff0fa627a0132803e4c2f903ceffcbc1c
- git.kernel.org/stable/c/8f48cfe657409fb5c7ba0521b14da6d47546d9cf
- git.kernel.org/stable/c/92185d6f7819bc558939ae83de7b1abe90e3b5c2
- git.kernel.org/stable/c/9bc9b95aee2b2e3f1301a16a67ee504960402875
- git.kernel.org/stable/c/a735f9964a3d9ed97daf9b08507f8b5bcafe6326
- git.kernel.org/stable/c/dac813101914c21219ac221a60a31a11bc90e7ec
- git.kernel.org/stable/c/dd22f74a09e25ca298ced0a3763ef353242cb78d
Metrics
- CVSS 3.1
-
9.8
CRITICAL
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 1% percentile: 55 · as of 11 November 2026
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