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Red Hat Security Advisory

RHSA-2026:27288

kernel security, bug fix, and enhancement update

Released 2026-06-20 · Red Hat rating Important · View on Red Hat →

Fixed in

Fixes 15 records

Priority HIGH 69

In the Linux kernel, the following vulnerability has been resolved: net/sched: fix pedit partial COW leading to page cache corruption tcf_pedit_act() computes the COW range for skb_ensure_writable() once before the key l…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00639 Published 2026-06-16 Fixed in 5.10.260, 5.15.211 +9 CWE-190
Priority MEDIUM 49

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix slab-use-after-free in __inet_lookup_established The ehash table lookups are lockless and rely on SLAB_TYPESAFE_BY_RCU to guarantee socket me…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00471 Published 2026-04-24 Partial fix · 5.15.203, 6.1.169 +5 CWE-416
Priority MEDIUM 40

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: remove station if connection prep fails If connection preparation fails for MLO connections, then the interface is completely reset to n…

CVSS 3.1HIGH 8.8 Adjacent network No auth No interaction EPSS 0.00303 Published 2026-05-28 Partial fix · 6.1.176, 6.6.140 +4 CWE-416
Priority MEDIUM 40

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers hci_conn lookup and field access must be covered by hdev lock in hci_user_passkey_notify…

CVSS 3.1HIGH 8.8 Adjacent network No auth No interaction EPSS 0.00282 Published 2026-05-27 Partial fix · 5.10.259, 5.15.210 +6 CWE-416
Priority LOW 39

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: use safe list iteration in radar detect work The call to ieee80211_dfs_cac_cancel can cause the iterated chanctx to be freed and removed…

CVSS 3.1HIGH 8.8 Adjacent network No auth No interaction EPSS 0.00203 Published 2026-05-28 Fixed in 6.12.88, 6.18.30 +2 CWE-416
Priority LOW 39

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: drop stray 'static' from fast-RX rx_result ieee80211_invoke_fast_rx() is documented as safe for parallel RX, but its per-invocation rx_r…

CVSS 3.1HIGH 8.8 Adjacent network No auth No interaction EPSS 0.00168 Published 2026-05-28 Fixed in 6.6.140, 6.12.88 +3 CWE-362
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: exit: prevent preemption of oopsing TASK_DEAD task When an already-exiting task oopses, make_task_dead() currently calls do_task_dead() with preemption…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00132 Published 2026-05-28 Partial fix · 6.1.175, 6.6.140 +4 CWE-416
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: net: mana: fix use-after-free in add_adev() error path If auxiliary_device_add() fails, add_adev() jumps to add_fail and calls auxiliary_device_uninit(a…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00117 Published 2026-05-01 Fixed in 6.6.134, 6.12.81 +3 CWE-416
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: Buffer overflow in drivers/xen/sys-hypervisor.c The build id returned by HYPERVISOR_xen_version(XENVER_build_id) is neither NUL terminated nor a string.

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00197 Published 2026-04-30 Partial fix · 5.10.254, 5.15.204 +6 CWE-120
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: fix stack buffer overflow in hci_le_big_create_sync hci_le_big_create_sync() uses DEFINE_FLEX to allocate a struct hci_cp_le_big_cr…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00142 Published 2026-05-01 Fixed in 6.12.81, 6.12 +3 CWE-121
Priority LOW 35

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.

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00104 Published 2026-04-22 Fixed in 6.6.131, 6.12.80 +3 CWE-416
Priority LOW 33

In the Linux kernel, the following vulnerability has been resolved: crypto: caam - fix overflow on long hmac keys When a key longer than block size is supplied, it is copied and then hashed into the real key.

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00129 Published 2026-05-08 Fixed in 6.6.134, 6.12.81 +3 CWE-787
TI-2026-31439 CVE-2026-43260 · GHSA-w6jm-j85g-vpgj

bnxt_en: Fix RSS context delete logic

Priority LOW 33

In the Linux kernel, the following vulnerability has been resolved: bnxt_en: Fix RSS context delete logic We need to free the corresponding RSS context VNIC in FW everytime an RSS context is deleted in driver.

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00138 Published 2026-05-06 Fixed in 6.12.75, 6.18.16 +2 CWE-415
Priority LOW 33

In the Linux kernel, the following vulnerability has been resolved: xen/privcmd: fix double free via VMA splitting privcmd_vm_ops defines .close (privcmd_close), but neither .may_split nor .open.

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00183 Published 2026-04-30 Partial fix · 5.10.254, 5.15.204 +6 CWE-415
Priority LOW 33

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix RxGK token loading to check bounds rxrpc_preparse_xdr_yfs_rxgk() reads the raw key length and ticket length from the XDR token as u32 values…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00143 Published 2026-04-24 Fixed in 6.18.23, 6.19.13 +1 CWE-125