Read the docs
Red Hat Security Advisory

RHSA-2026:83207

kernel security, bug fix, and enhancement update

Released 2026-10-15 · Red Hat rating Important · View on Red Hat →

Fixed in

Fixes 20 records

Priority MEDIUM 50

In the Linux kernel, the following vulnerability has been resolved: svcrdma: Validate Read chunk positions before reconstruction The RPC/RDMA Read chunk position field is supplied by the remote client and stored verbatim…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00682 Published 2026-09-11 Partial fix · 6.1.191, 6.6.160 +4
Priority MEDIUM 49

In the Linux kernel, the following vulnerability has been resolved: idpf: fix read_dev_clk_lock spinlock init in idpf_ptp_init() In idpf_ptp_init(), read_dev_clk_lock is initialized after ptp_schedule_worker() had alread…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00435 Published 2026-07-19 Fixed in 6.18.34, 7.0.11 +1 CWE-666
Priority MEDIUM 43

In the Linux kernel, the following vulnerability has been resolved: NFSD: Prevent client use-after-free during blocked-lock reaping A bare lock owner -- its only remaining reference a blocked lock on nn->blocked_locks_lr…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00484 Published 2026-09-16 Partial fix · 6.6.160, 6.12.111 +3
Priority MEDIUM 43

In the Linux kernel, the following vulnerability has been resolved: nfsd: don't free session slots that are still in use nfsd4_sequence() can free the very slot it is currently processing.

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00614 Published 2026-09-11 Partial fix · 6.18.50, 7.2.4 +1
Priority MEDIUM 42

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Zero rpc_gss_wire_cred at svcauth_gss_decode_credbody() entry svcauth_gss_decode_credbody() writes the caller's rpc_gss_wire_cred field by field…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00467 Published 2026-09-24 Partial fix · 6.6.157, 6.12.109 +3
Priority MEDIUM 40

In the Linux kernel, the following vulnerability has been resolved: svcrdma: Reject Write/Reply chunks with segcount 0 A peer can send a Write or Reply chunk whose segcount field is zero.

CVSS 3.1CRITICAL 9.1 Network No auth No interaction EPSS 0.00501 Published 2026-09-24 Partial fix · 6.1.191, 6.6.160 +4
Priority MEDIUM 40

In the Linux kernel, the following vulnerability has been resolved: net/iucv: fix use-after-free of a severed iucv_path af_iucv queues not-yet-received message notifications on iucv->message_q, each holding a raw pointer…

CVSS 3.1HIGH 8.8 Adjacent network No auth No interaction EPSS 0.00275 Published 2026-08-10 Partial fix · 5.10.265, 5.15.216 +6 CWE-416
Priority MEDIUM 40

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: bounds-check link_id in ieee80211_ml_epcs IEEE80211_MLE_STA_EPCS_CONTROL_LINK_ID is 0x000f, so link_id extracted from a PRIO_ACCESS ML e…

CVSS 3.1HIGH 8.8 Adjacent network No auth No interaction EPSS 0.0024 Published 2026-07-19 Partial fix · 6.18.34, 7.0.11 +1 CWE-125
Priority MEDIUM 40

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: Set HCI_CMD_DRAIN_WORKQUEUE during device close Since hci_dev_close_sync() can now be called during the reset path, we should also…

CVSS 3.1HIGH 8.8 Adjacent network No auth No interaction EPSS 0.00347 Published 2026-07-19 Partial fix · 5.19, 5.20 +6 CWE-400
Priority MEDIUM 40

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_queue: do shared-unconfirmed check before segmentation Ulrich reports a regression with nfqueue: If an application did not set the…

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00712 Published 2026-05-27 Partial fix · 6.1.191, 6.6.160 +6 CWE-400
Priority LOW 36

In the Linux kernel, the following vulnerability has been resolved: net/smc: carry oversized SMC-Rv2 LLC messages in the queue entry smc_llc_rmt_delete_rkey() and smc_llc_save_add_link_rkeys() read the part of a v2 messa…

CVSS 3.1HIGH 8.2 Network No auth No interaction EPSS 0.00526 Published 2026-09-11 Fixed in 6.18.50, 7.2.4 +1
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: ALSA: usx2y: bound the hwdep mmap fault offset snd_us428ctls_vm_fault() turns the faulting page offset into a kernel address with no bound of any kind:…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00129 Published 2026-08-22 Partial fix · 5.10.266, 5.15.216 +6
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev_open() The failed_dev_add and failed_dev_name paths drop the file-device reference while wq…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00122 Published 2026-08-15 Partial fix · 6.6.151, 6.12.103 +3
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: ipc3-control: Fix heap overflow in bytes_ext put/get The ipc_control_data buffer is allocated as kzalloc(max_size), where max_size covers the…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00182 Published 2026-08-15 Partial fix · 6.1.184, 6.6.145 +4
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: net/sched: act_tunnel_key: Defer dst_release to RCU callback Fix a race-condition use-after-free in tunnel_key_release_params().

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00128 Published 2026-08-10 Partial fix · 4.20, 4.21 +8 CWE-416
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: bridge: mcast: Fix a possible use-after-free when removing a bridge port When per-VLAN multicast snooping is enabled, the bridge iterates over all the b…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00133 Published 2026-07-19 Partial fix · 5.15.209, 6.1.175 +6 CWE-416
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: net/sched: taprio: fix use-after-free in advance_sched() on schedule switch In advance_sched(), when should_change_schedules() returns true, switch_sche…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.0013 Published 2026-06-24 Partial fix · 5.10.258, 5.15.209 +6 CWE-416
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: net/sched: act_ct: Only release RCU read lock after ct_ft When looking up a flow table in act_ct in tcf_ct_flow_table_get(), rhashtable_lookup_fast() in…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00105 Published 2026-06-09 Partial fix · 5.10.258, 5.15.209 +6 CWE-362
Priority LOW 33

In the Linux kernel, the following vulnerability has been resolved: media: cx231xx: reject geometry changes while the VBI queue is busy vidioc_s_fmt_vid_cap() and vidioc_s_std() change the device-wide dev->width / dev->n…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00169 Published 2026-09-16 Partial fix · 5.10.270, 5.15.221 +6
Priority LOW 33

In the Linux kernel, the following vulnerability has been resolved: USB: serial: mxuport: fix memory corruption with small endpoint Make sure that the bulk-out endpoint max packet size is at least eight bytes to avoid us…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00176 Published 2026-07-19 Partial fix · 5.10.259, 5.15.210 +6 CWE-787