Summary
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: net: bridge: use a stable FDB dst snapshot in RCU readers (CVE-2026-46086)
* kernel: ipv6: fix possible UAF in icmpv6_rcv() (CVE-2026-53006)
* kernel: tipc: fix double-free in tipc_buf_append() (CVE-2026-52993)
* kernel: iommu/vt-d: Avoid NULL pointer dereference or refcount corruption (CVE-2026-53281)
Bug Fix(es) and Enhancement(s):
* rxrpc: Address CVE-2026-43500 [rhel-10.2.z] (JIRA:Rocky Linux-178254)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Fixed packages 1
| Release | Package | Fixed in |
|---|---|---|
| Rocky Linux · 10 | kernel | 0:6.12.0-211.40.1.el10_2 |
Vulnerabilities 4
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Critical 9.8CVE-2026-52993 Public exploit
tipc: fix double-free in tipc_buf_append()
In the Linux kernel, the following vulnerability has been resolved: tipc: fix double-free in tipc_buf_append() tipc_msg_validate() can potentially reallocate the skb it is validating, freeing the old one. In tipc_buf_append(), it was being called with a point…
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Critical 9.8
ipv6: fix possible UAF in icmpv6_rcv()
In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible UAF in icmpv6_rcv() Caching saddr and daddr before pskb_pull() is problematic since skb->head can change. Remove these temporary variables: - We only access &ipv6_hdr(skb)-…
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High 8.8
iommu/vt-d: Avoid NULL pointer dereference or refcount corruption
In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Avoid NULL pointer dereference or refcount corruption Commit 60f030f7418d ("iommu/vt-d: Avoid use of NULL after WARN_ON_ONCE") fixed a NULL pointer dereference in an unlikely situ…
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Unscored —
net: bridge: use a stable FDB dst snapshot in RCU readers
In the Linux kernel, the following vulnerability has been resolved: net: bridge: use a stable FDB dst snapshot in RCU readers Local FDB entries can be rewritten in place by `fdb_delete_local()`, which updates `f->dst` to another port or to `NULL` while keepin…