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: can: isotp: fix tx.buf use-after-free in isotp_sendmsg() (CVE-2026-31474)
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kernel: mptcp: fix slab-use-after-free in __inet_lookup_established (CVE-2026-31669)
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kernel: rxrpc: Fix RxGK token loading to check bounds (CVE-2026-31641)
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kernel: xen/privcmd: fix double free via VMA splitting (CVE-2026-31787)
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kernel: Buffer overflow in drivers/xen/sys-hypervisor.c (CVE-2026-31786)
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kernel: net: mana: fix use-after-free in add_adev() error path (CVE-2026-43056)
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kernel: Bluetooth: hci_sync: fix stack buffer overflow in hci_le_big_create_sync (CVE-2026-31772)
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kernel: bnxt_en: Fix RSS context delete logic (CVE-2026-43260)
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kernel: crypto: caam - fix overflow on long hmac keys (CVE-2026-43330)
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kernel: net/sched: act_pedit: extend the writable skb range per key (CVE-2026-46331)
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kernel: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers (CVE-2026-46056)
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kernel: wifi: mac80211: drop stray 'static' from fast-RX rx_result (CVE-2026-46152)
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kernel: wifi: mac80211: remove station if connection prep fails (CVE-2026-46125)
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kernel: exit: prevent preemption of oopsing TASK_DEAD task (CVE-2026-46173)
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kernel: wifi: mac80211: use safe list iteration in radar detect work (CVE-2026-46166)
Bug Fix(es) and Enhancement(s):
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Rocky Linux10.0 - s390/ap: Expose ap_bindings_complete_count counter via sysfs [rhel-10.2.z] (JIRA:Rocky Linux-166047)
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Rocky Linux9.5 crash due to lpfc NULL ndlp->vport [rhel-10.2.z] (JIRA:Rocky Linux-171774)
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objtool static_call check blocks build of out-of-tree livepatch modules on Rocky Linux 10.2 GA kernels ? missing upstream revert f495054bd12e (JIRA:Rocky Linux-178495)
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ibmveth Adapter Freeze with Small MSS [rhel-10.2.z] (JIRA:Rocky Linux-179723)
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rbd: eliminate a race in lock_dwork draining on unmap [rhel-10.2.z] (JIRA:Rocky Linux-183127)
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Rocky Linux10.0 - s390/mm: Add missing secure storage access fixups [rhel-10.2.z] (JIRA:Rocky Linux-183319)
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[Rocky Linux10.2.z] Enable Pretimeout Watchdog Panic Functionality on x86 (JIRA:Rocky Linux-182299)
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 10
Ссылки на источники
Исправления
- Red Hat - 2467083
- Red Hat - 2482634
- Red Hat - 2460646
- Red Hat - 2479492
- Red Hat - 2464096
- Red Hat - 2461548
- Red Hat - 2464502
- Red Hat - 2464449
- Red Hat - 2482645
- Red Hat - 2461503
- Red Hat - 2468061
- Red Hat - 2482181
- Red Hat - 2482563
- Red Hat - 2482608
- Red Hat - 2464092
Связанные уязвимости
ELSA-2026-27288: kernel security, bug fix, and enhancement update (IMPORTANT)
ELSA-2026-27789: kernel security, bug fix, and enhancement update (IMPORTANT)
In the Linux kernel, the following vulnerability has been resolved: can: isotp: fix tx.buf use-after-free in isotp_sendmsg() isotp_sendmsg() uses only cmpxchg() on so->tx.state to serialize access to so->tx.buf. isotp_release() waits for ISOTP_IDLE via wait_event_interruptible() and then calls kfree(so->tx.buf). If a signal interrupts the wait_event_interruptible() inside close() while tx.state is ISOTP_SENDING, the loop exits early and release proceeds to force ISOTP_SHUTDOWN and continues to kfree(so->tx.buf) while sendmsg may still be reading so->tx.buf for the final CAN frame in isotp_fill_dataframe(). The so->tx.buf can be allocated once when the standard tx.buf length needs to be extended. Move the kfree() of this potentially extended tx.buf to sk_destruct time when either isotp_sendmsg() and isotp_release() are done.
In the Linux kernel, the following vulnerability has been resolved: can: isotp: fix tx.buf use-after-free in isotp_sendmsg() isotp_sendmsg() uses only cmpxchg() on so->tx.state to serialize access to so->tx.buf. isotp_release() waits for ISOTP_IDLE via wait_event_interruptible() and then calls kfree(so->tx.buf). If a signal interrupts the wait_event_interruptible() inside close() while tx.state is ISOTP_SENDING, the loop exits early and release proceeds to force ISOTP_SHUTDOWN and continues to kfree(so->tx.buf) while sendmsg may still be reading so->tx.buf for the final CAN frame in isotp_fill_dataframe(). The so->tx.buf can be allocated once when the standard tx.buf length needs to be extended. Move the kfree() of this potentially extended tx.buf to sk_destruct time when either isotp_sendmsg() and isotp_release() are done.