ipvs: ensure inner headers in ICMP errors are in headroom
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 4 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.261, 5.15.212, 6.1.178, 6.6.145, 6.12.97, 6.18.40, 7.1.5, 7.2
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet |
| Red Hat Enterprise Linux 7 | Affected | No fix yet |
| Red Hat Enterprise Linux 8 | Affected | No fix yet |
| Red Hat Enterprise Linux 9 | Affected | No fix yet |
Not affected: 1 product
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-02 Threatist record created from CVE-2026-72319
- 2026-10-03 Alias added: GHSA-67vj-f5vq-78c5
- 2026-10-16 Affected versions changed · Red Hat
- 2026-10-16 CVSS score changed · Red Hat
- 2026-10-16 CISA SSVC decision points changed
References
Other 8
- https://git.kernel.org/stable/c/19657b3a17b774ae4e2f2635b5ae8638c9344a40
- https://git.kernel.org/stable/c/dac813101914c21219ac221a60a31a11bc90e7ec
- https://git.kernel.org/stable/c/dd22f74a09e25ca298ced0a3763ef353242cb78d
- https://git.kernel.org/stable/c/9bc9b95aee2b2e3f1301a16a67ee504960402875
- https://git.kernel.org/stable/c/a735f9964a3d9ed97daf9b08507f8b5bcafe6326
- https://git.kernel.org/stable/c/8f48cfe657409fb5c7ba0521b14da6d47546d9cf
- https://git.kernel.org/stable/c/92185d6f7819bc558939ae83de7b1abe90e3b5c2
- https://git.kernel.org/stable/c/3f7a535ff0fa627a0132803e4c2f903ceffcbc1c
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- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
Sources
- CVE-2026-72319 · CVE Program
- CVE-2026-72319 · NVD
- FIRST EPSS
- GHSA-67vj-f5vq-78c5 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-72319 · Red Hat security data · CC BY 4.0
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