Описание
Important: kernel security, bug fix, and enhancement update
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
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kernel: openvswitch: defer tunnel netdev_put to RCU release (CVE-2026-31678)
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kernel: xfrm: espintcp: do not reuse an in-progress partial send (CVE-2026-52935)
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kernel: USB: serial: mxuport: fix memory corruption with small endpoint (CVE-2026-63899)
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kernel: bridge: mcast: Fix a possible use-after-free when removing a bridge port (CVE-2026-64032)
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kernel: tcp: fix stale per-CPU tcp_tw_isn leak enabling ISN prediction (CVE-2026-64024)
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kernel: usb: typec: tcpm: bound altmode_desc[] per iteration in svdm_consume_modes() (CVE-2026-63962)
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kernel: Bluetooth: hci_sync: Set HCI_CMD_DRAIN_WORKQUEUE during device close (CVE-2026-63974)
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kernel: ipv4: raw: reject IP_HDRINCL packets with ihl < 5 (CVE-2026-64114)
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kernel: ipv4: fib: free fib_alias with kfree_rcu() on insert error path (CVE-2026-64572)
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kernel: Bluetooth: hci_sync: Fix advertising data UAFs (CVE-2026-74509)
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kernel: Linux kernel: Denial of Service due to incorrect GSO state handling in network fragment reassembly (CVE-2026-80590)
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kernel: smb: client: fix OOB read/write from unvalidated DataOffset in coalesce_t2() (CVE-2026-89633)
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kernel: perf: Fix addr_filter_ranges lifetime (CVE-2026-93817)
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kernel: kernel: strparser: use-after-free via msg_timer_work rearm after strp_done() cancellation ()
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kernel: exec: Cleanup POSIX timers right after de_thread() (CVE-2026-98260)
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kernel: ipv4: validate checksum_start before completing checksum (CVE-2026-99999)
Bug Fix(es) and Enhancement(s):
- Batch: z-stream xfrm - rhel-9.8.z (NST-Core-26W38) (JIRA:Rocky Linux-256697)
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.
Затронутые продукты
Rocky Linux 9
Ссылки на источники
Исправления
- Red Hat - 2461761
- Red Hat - 2492098
- Red Hat - 2502325
- Red Hat - 2502332
- Red Hat - 2502333
- Red Hat - 2502356
- Red Hat - 2502462
- Red Hat - 2502486
- Red Hat - 2511413
- Red Hat - 2516967
- Red Hat - 2525413
- Red Hat - 2532230
- Red Hat - 2540391
- Red Hat - 2546491
- Red Hat - 2553429
Связанные уязвимости
In the Linux kernel, the following vulnerability has been resolved: openvswitch: defer tunnel netdev_put to RCU release ovs_netdev_tunnel_destroy() may run after NETDEV_UNREGISTER already detached the device. Dropping the netdev reference in destroy can race with concurrent readers that still observe vport->dev. Do not release vport->dev in ovs_netdev_tunnel_destroy(). Instead, let vport_netdev_free() drop the reference from the RCU callback, matching the non-tunnel destroy path and avoiding additional synchronization under RTNL.
In the Linux kernel, the following vulnerability has been resolved: openvswitch: defer tunnel netdev_put to RCU release ovs_netdev_tunnel_destroy() may run after NETDEV_UNREGISTER already detached the device. Dropping the netdev reference in destroy can race with concurrent readers that still observe vport->dev. Do not release vport->dev in ovs_netdev_tunnel_destroy(). Instead, let vport_netdev_free() drop the reference from the RCU callback, matching the non-tunnel destroy path and avoiding additional synchronization under RTNL.
In the Linux kernel, the following vulnerability has been resolved: openvswitch: defer tunnel netdev_put to RCU release ovs_netdev_tunnel_destroy() may run after NETDEV_UNREGISTER already detached the device. Dropping the netdev reference in destroy can race with concurrent readers that still observe vport->dev. Do not release vport->dev in ovs_netdev_tunnel_destroy(). Instead, let vport_netdev_free() drop the reference from the RCU callback, matching the non-tunnel destroy path and avoiding additional synchronization under RTNL.
