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In the Linux kernel, the following vulnerability has been resolved: ipv6: add NULL checks for idev in SRv6 paths __in6_dev_get() can return NULL when the device has no IPv6 configuration (e.g. MTU < IPV6_MIN_MTU or after NETDEV_UNREGISTER). Add NULL checks for idev returned by __in6_dev_get() in both seg6_hmac_validate_skb() and ipv6_srh_rcv() to prevent potential NULL pointer dereferences.
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This issue has been addressed in the following products: Red Hat Enterprise Linux 10 Via RHSA-2026:64775 https://access.redhat.com/errata/RHSA-2026:64775
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.6 Extended Update Support Via RHSA-2026:77219 https://access.redhat.com/errata/RHSA-2026:77219
This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2026:76739 https://access.redhat.com/errata/RHSA-2026:76739