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Red Hat Security Advisory

RHSA-2026:89083

kernel security, bug fix, and enhancement update

Released 2026-10-24 · Red Hat rating Important · View on Red Hat →

Fixed in

Fixes 13 records

Priority MEDIUM 50

In the Linux kernel, the following vulnerability has been resolved: net: gro: fix double aggregation of flush-marked skbs Commit 0ab03f353d36 ("net-gro: Fix GRO flush when receiving a GSO packet.") added a flush check to…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00539 Published 2026-08-10 Partial fix · 5.10.266, 6.1.184 +5 CWE-476
Priority MEDIUM 49

In the Linux kernel, the following vulnerability has been resolved: mptcp: options: reset DSS fields in case of unexpected size A remote peer could send a malformed DSS with a wrong size, followed by another DSS or MPC +…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00399 Published 2026-08-26 Partial fix · 5.10.266, 5.15.217 +6
Priority MEDIUM 43

In the Linux kernel, the following vulnerability has been resolved: ipv4: validate checksum_start before completing checksum If a packet with bad checksum metadata gets into the ipv4 stack, skb_checksum_help can corrupt…

CVSS 3.1CRITICAL 9.3 Local No auth No interaction EPSS 0.00788 Published 2026-10-15 Partial fix · 5.10.272, 5.15.223 +6 CWE-20
Priority MEDIUM 43

In the Linux kernel, the following vulnerability has been resolved: ipvs: reload ip header after head reallocation __ip_vs_get_out_rt() calls skb_ensure_writable() which may reallocate skb->head.

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00714 Published 2026-08-15 Partial fix · 5.10.269, 5.15.220 +6
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 LOW 35

In the Linux kernel, the following vulnerability has been resolved: smb: client: clear setuid/setgid bit on write with cifsacl/modefromsid/posix extensions When a file has the setuid or setgid bit set and is written to,…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00178 Published 2026-09-11 Partial fix · 5.10.273, 5.15.224 +6
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: net/iucv: filter frames in afiucv_hs_rcv() by ingress device afiucv_hs_rcv() selects a socket from iucv_sk_list by matching four 8-byte name fields in t…

CVSS 3.1HIGH 8.1 Adjacent network No auth No interaction EPSS 0.00309 Published 2026-09-11 Partial fix · 5.10.270, 5.15.221 +6
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: net/packet: avoid fanout hook re-registration after unregister packet_set_ring() temporarily detaches a socket from packet delivery while reconfiguring…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00136 Published 2026-08-10 Partial fix · 5.10.265, 5.15.216 +6 CWE-362
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: net/sched: serialize qdisc_rtab_list against concurrent get/put qdisc_get_rtab() and qdisc_put_rtab() mutate the process-global singly linked list qdisc…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00223 Published 2026-08-10 Partial fix · 5.10.266, 5.15.217 +6 CWE-362
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: writeback: fix race between cgroup_writeback_umount() and inode_switch_wbs() When a container exits, the following BUG_ON() is occasionally triggered: =…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.001 Published 2026-07-25 Partial fix · 4.5, 5.10.261 +6 CWE-362
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: fuse: re-lock request before replacing page cache folio fuse_try_move_folio() unlocks the request on entry but does not re-lock it on the success path.

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00133 Published 2026-07-19 Partial fix · 5.15.211, 6.1.177 +6 CWE-416
TI-2026-38322 CVE-2026-53236 · GHSA-jmmv-2hp7-p7g5

tcp: restrict SO_ATTACH_FILTER to priv users

Priority LOW 24

In the Linux kernel, the following vulnerability has been resolved: tcp: restrict SO_ATTACH_FILTER to priv users This patch restricts the use of SO_ATTACH_FILTER (cBPF) on TCP sockets to users with CAP_NET_ADMIN capabili…

CVSS 3.1MEDIUM 5.5 Local Low privileges No interaction EPSS 0.00125 Published 2026-06-25 Partial fix · 6.1.176, 6.6.143 +4
Priority LOW 22

In the Linux kernel, the following vulnerability has been resolved: usb: usbfs: fix use-after-free of usb_device in usbdev_release() usbdev_release() drops its reference to the struct usb_device before draining the list…

CVSS — EPSS 0.00195 Published 2026-09-04 Partial fix · 5.10.269, 5.15.220 +7