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Red Hat Security Advisory

RHSA-2026:1727

kernel security update

Released 2026-02-02 · Red Hat rating Important · View on Red Hat →

Fixed in

Fixes 16 records

Priority MEDIUM 48

In the Linux kernel, the following vulnerability has been resolved: net: atlantic: fix fragment overflow handling in RX path The atlantic driver can receive packets with more than MAX_SKB_FRAGS (17) fragments when handli…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00467 Published 2025-12-16 Partial fix · 5.10.247, 5.15.197 +6
Priority MEDIUM 43

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix race condition in mptcp_schedule_work() syzbot reported use-after-free in mptcp_schedule_work() [1] Issue here is that mptcp_schedule_work()…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00498 Published 2025-12-04 Partial fix · 5.10.247, 5.15.197 +5
Priority MEDIUM 40

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: fix race in hci_cmd_sync_dequeue_once hci_cmd_sync_dequeue_once() does lookup and then cancel the entry under two separate lock sec…

CVSS 3.1HIGH 8.8 Adjacent network No auth No interaction EPSS 0.0027 Published 2025-12-08 Partial fix · 6.1.159, 6.6.117 +4
Priority MEDIUM 40

In the Linux kernel, the following vulnerability has been resolved: smb: client: let recv_done verify data_offset, data_length and remaining_data_length This is inspired by the related server fixes.

CVSS 3.1CRITICAL 9.4 Network No auth No interaction EPSS 0.00347 Published 2025-10-04 Partial fix · 6.1.191, 6.6.160 +3
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: net/sched: mqprio: fix stack out-of-bounds write in tc entry parsing TCA_MQPRIO_TC_ENTRY_INDEX is validated using NLA_POLICY_MAX(NLA_U32, TC_QOPT_MAX_QU…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00176 Published 2025-08-19 Partial fix · 6.6.102, 6.12.42 +3 CWE-787
Priority LOW 34

In the Linux kernel, the following vulnerability has been resolved: sctp: avoid NULL dereference when chunk data buffer is missing chunk->skb pointer is dereferenced in the if-block where it's supposed to be NULL only.

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00644 Published 2025-12-04 Partial fix · 5.4.301, 5.10.246 +6
Priority LOW 33

In the Linux kernel, the following vulnerability has been resolved: fbdev: Add bounds checking in bit_putcs to fix vmalloc-out-of-bounds Add bounds checking to prevent writes past framebuffer boundaries when rendering te…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00144 Published 2025-12-08 Partial fix · 5.4.302, 5.10.247 +6
Priority LOW 33

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: validate skb length for unknown CC opcode In hci_cmd_complete_evt(), if the command complete event has an unknown opcode, we assum…

CVSS 3.1HIGH 7.6 Adjacent network No auth No interaction EPSS 0.00271 Published 2025-12-08 Fixed in 6.1.159, 6.6.117 +3
Priority LOW 33

In the Linux kernel, the following vulnerability has been resolved: devlink: rate: Unset parent pointer in devl_rate_nodes_destroy The function devl_rate_nodes_destroy is documented to "Unset parent for all rate objects"…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00166 Published 2025-12-04 Partial fix · 6.1.164, 6.6.118 +3 CWE-476
Priority LOW 33

In the Linux kernel, the following vulnerability has been resolved: vsock: Ignore signal/timeout on connect() if already established During connect(), acting on a signal/timeout by disconnecting an already established so…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00168 Published 2025-12-04 Partial fix · 5.4.302, 5.10.247 +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: io_uring/msg_ring: ensure io_kiocb freeing is deferred for RCU syzbot reports that defer/local task_work adding via msg_ring can hit a request that has…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00187 Published 2025-07-25 Fixed in 6.12.46, 6.15.7 +1
Priority LOW 33

In the Linux kernel, the following vulnerability has been resolved: erofs: avoid using multiple devices with different type For multiple devices, both primary and extra devices should be the same type.

CVSS 3.1HIGH 7.8 Local No auth User interaction EPSS 0.00178 Published 2025-07-03 Fixed in 6.12.34, 6.15.3 +1 CWE-416
Priority LOW 31

In the Linux kernel, the following vulnerability has been resolved: ntb_hw_switchtec: Fix shift-out-of-bounds in switchtec_ntb_mw_set_trans There is a kernel API ntb_mw_clear_trans() would pass 0 to both addr and size.

CVSS 3.1HIGH 7.1 Adjacent network No auth No interaction EPSS 0.00294 Published 2025-04-16 Partial fix · 5.4.292, 5.10.236 +7 CWE-125
Priority LOW 30

In the Linux kernel, the following vulnerability has been resolved: fbdev: bitblit: bound-check glyph index in bit_putcs* bit_putcs_aligned()/unaligned() derived the glyph pointer from the character value masked by 0xff/…

CVSS 3.1HIGH 7.1 Local Low privileges No interaction EPSS 0.00143 Published 2025-12-08 Partial fix · 5.4.302, 5.10.247 +6