7.5
Élevée
CVE-2026-43099 In the Linux kernel, the following vulnerability has been resolved: ipv4: icmp: fix null-ptr-deref in icmp_build_probe()…
Description
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".
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| Linux 7.0 | premières → < 7.0 | 7.0 |
| Linux 6.19 | premières → < 6.19.14 | 6.19.14 |
| Linux 6.18 | premières → < 6.18.24 | 6.18.24 |
| Linux 6.12 | premières → < 6.12.83 | 6.12.83 |
| Linux 6.6 | premières → < 6.6.136 | 6.6.136 |
| Linux 6.1 | premières → < 6.1.175 | 6.1.175 |
| Linux 5.15 | premières → < 5.15.209 | 5.15.209 |
| Linux | 5.13 | Pas de correctif indiqué |
| SIMATIC S7-1500 TM MFP - GNU/Linux subsystem | Versions non publiées |
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