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Red Hat Security Advisory

RHSA-2025:21469

kernel security update

Released 2025-11-17 · Red Hat rating Moderate · View on Red Hat →

Fixed in

Fixes 9 records

Priority MEDIUM 40

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: Fix UAF in hci_acl_create_conn_sync This fixes the following UFA in hci_acl_create_conn_sync where a connection still pending is c…

CVSS 3.1HIGH 8.8 Adjacent network No auth No interaction EPSS 0.00282 Published 2025-10-15 Partial fix · 6.1.155, 6.6.109 +3
TI-2025-26645 CVE-2025-39973 · GHSA-j9g6-49hr-w92p

i40e: add validation for ring_len param

Priority LOW 39

In the Linux kernel, the following vulnerability has been resolved: i40e: add validation for ring_len param The `ring_len` parameter provided by the virtual function (VF) is assigned directly to the hardware memory conte…

CVSS 3.1HIGH 8.8 Local Low privileges No interaction EPSS 0.00158 Published 2025-10-15 Partial fix · 5.4.300, 5.10.245 +6
Priority LOW 38

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: Fix UAF in hci_conn_tx_dequeue This fixes the following UAF caused by not properly locking hdev when processing HCI_EV_NUM_COMP_PK…

CVSS 3.1HIGH 8.8 Adjacent network No auth No interaction EPSS 0.00249 Published 2025-10-15 Partial fix · 6.16.10, 6.17
Priority LOW 37

In the Linux kernel, the following vulnerability has been resolved: i40e: fix idx validation in config queues msg Ensure idx is within range of active/initialized TCs when iterating over vf->ch[idx] in i40e_vc_config_que…

CVSS 3.1HIGH 8.8 Local Low privileges No interaction EPSS 0.00158 Published 2025-10-15 Partial fix · 5.4.300, 5.10.245 +6
Priority LOW 33

In the Linux kernel, the following vulnerability has been resolved: io_uring/waitid: always prune wait queue entry in io_waitid_wait() For a successful return, always remove our entry from the wait queue entry list.

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00163 Published 2025-10-28 Partial fix · 6.12.53, 6.17.3 +1
Priority LOW 33

In the Linux kernel, the following vulnerability has been resolved: kernfs: Fix UAF in polling when open file is released A use-after-free (UAF) vulnerability was identified in the PSI (Pressure Stall Information) monito…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00154 Published 2025-09-23 Fixed in 6.1.153, 6.6.107 +3 CWE-416
Priority LOW 33

In the Linux kernel, the following vulnerability has been resolved: NFS: Fix a race when updating an existing write After nfs_lock_and_join_requests() tests for whether the request is still attached to the mapping, nothi…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00159 Published 2025-09-05 Partial fix · 5.10.242, 5.15.191 +5 CWE-362
Priority LOW 33

In the Linux kernel, the following vulnerability has been resolved: do_change_type(): refuse to operate on unmounted/not ours mounts Ensure that propagation settings can only be changed for mounts located in the caller's…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00219 Published 2025-07-30 Partial fix · 5.4.295, 5.10.239 +6
Priority LOW 24

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/hyper-v: Skip non-canonical addresses during PV TLB flush In KVM guests with Hyper-V hypercalls enabled, the hypercalls HVCALL_FLUSH_VIRTUAL_AD…

CVSS 3.1MEDIUM 5.5 Local Low privileges No interaction EPSS 0.00192 Published 2025-07-19 Fixed in 6.6.103, 6.12.41 +2