EUVD-2026-27608CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
4DescriptionNVD
In the Linux kernel, the following vulnerability has been resolved:
ipv4: icmp: fix null-ptr-deref in icmp_build_probe()
ipv6_stub->ipv6_dev_find() may return ERR_PTR(-EAFNOSUPPORT) when the IPv6 stack is not active (CONFIG_IPV6=m and not loaded), and passing this error pointer to dev_hold() will cause a kernel crash with null-ptr-deref.
Instead, silently discard the request. RFC 8335 does not appear to define a specific response for the case where an IPv6 interface identifier is syntactically valid but the implementation cannot perform the lookup at runtime, and silently dropping the request may safer than misreporting "No Such Interface".
AnalysisAI
Null pointer dereference in Linux kernel ICMP probe handling crashes systems when IPv6 module is configured but not loaded. The icmp_build_probe() function fails to validate ERR_PTR(-EAFNOSUPPORT) from ipv6_stub->ipv6_dev_find(), passing the error pointer directly to dev_hold() and triggering immediate kernel panic. …
Sign in for full analysis, threat intelligence, and remediation guidance.
RemediationAI
Within 24 hours: Identify all Linux systems running kernels 6.6.0-6.6.135, 6.12.0-6.12.82, 6.18.0-6.18.23, 6.19.0-6.19.13, or 7.0.0-7.0.x with IPv6 module enabled; prioritize customer-facing and critical infrastructure. Within 7 days: Apply vendor-released patches (kernel 6.6.136, 6.12.83, 6.18.24, 6.19.14, or 7.0.x-patched versions per your distribution). …
Sign in for detailed remediation steps.
More from same product – last 7 days
Command injection in the shell-quote npm package allows attackers who can influence object-token inputs to inject arbitr
Heap buffer overflow in NGINX Plus and NGINX Open Source ngx_http_rewrite_module allows unauthenticated remote attackers
Kernel availability loss in Ubuntu Linux 6.8, 6.17, and 7.0 can be triggered by any unprivileged local user via a defect
Kernel panic via NULL pointer dereference in Ubuntu Linux 6.8's AppArmor notification handler allows a locally authentic
NULL pointer dereference in Ubuntu Linux kernel versions 6.8, 6.17, and 7.0 allows a local unprivileged user to crash th
Vendor StatusVendor
Share
External POC / Exploit Code
Leaving vuln.today