Red Hat Security AdvisoryRHSA-2026:27288
kernel security, bug fix, and enhancement update
Released 2026-06-20 · Red Hat rating Important · View on Red Hat →
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
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