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ALSA-2025:12662 — Important: kernel security update

Affected: AlmaLinux:10: kernel-abi-stablelists, AlmaLinux:10: kernel-doc

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

* kernel: padata: fix UAF in padata_reorder (CVE-2025-21727) * kernel: HID: intel-ish-hid: Fix use-after-free issue in ishtp_hid_remove() (CVE-2025-21928) * kernel: HID: intel-ish-hid: Fix use-after-free issue in hid_ishtp_cl_remove() (CVE-2025-21929) * kernel: memstick: rtsx_usb_ms: Fix slab-use-after-free in rtsx_usb_ms_drv_remove (CVE-2025-22020) * kernel: ext4: avoid journaling sb update on error if journal is destroying (CVE-2025-22113) * kernel: RDMA/core: Fix use-after-free when rename device name (CVE-2025-22085) * kernel: net_sched: hfsc: Fix a UAF vulnerability in class with netem as child qdisc (CVE-2025-37890) * kernel: net/tipc: fix slab-use-after-free Read in tipc_aead_encrypt_done (CVE-2025-38052) * kernel: net: ch9200: fix uninitialised access during mii_nway_restart (CVE-2025-38086) * kernel: net/sched: fix use-after-free in taprio_dev_notifier (CVE-2025-38087) * kernel: nvme-tcp: sanitize request list handling (CVE-2025-38264)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

bdu:2025-09825

BELL-CVE-2025-38087

Affected: Alpaquita:25: linux-lts, Alpaquita:stream: linux-lts

certfr-2025-avi-0648 — De multiples vulnérabilités ont été découvertes dans le noyau Linux de Red Hat. Certaines d'entre elles permettent à un…

certfr-2025-avi-0648

EUVD-2026-346914

fkie_cve-2025-38087

In the Linux kernel, the following vulnerability has been resolved:

net/sched: fix use-after-free in taprio_dev_notifier

Since taprio’s taprio_dev_notifier() isn’t protected by an RCU read-side critical section, a race with advance_sched() can lead to a use-after-free.

Adding rcu_read_lock() inside taprio_dev_notifier() prevents this.

GHSA-fp4c-f74p-8cg7

In the Linux kernel, the following vulnerability has been resolved:

net/sched: fix use-after-free in taprio_dev_notifier

Since taprio’s taprio_dev_notifier() isn’t protected by an RCU read-side critical section, a race with advance_sched() can lead to a use-after-free.

Adding rcu_read_lock() inside taprio_dev_notifier() prevents this.

msrc_CVE-2025-38087 — net/sched: fix use-after-free in taprio_dev_notifier

msrc_CVE-2025-38087

OESA-2025-2120 — kernel security update

Affected: openEuler:24.03-LTS: kernel

The Linux Kernel, the operating system core itself. Security Fix(es):

In the Linux kernel, the following vulnerability has been resolved:

gtp: Destroy device along with udp socket's netns dismantle.

gtp_newlink() links the device to a list in dev_net(dev) instead of src_net, where a udp tunnel socket is created.

Even when src_net is removed, the device stays alive on dev_net(dev). Then, removing src_net triggers the splat below. [0]

In this example, gtp0 is created in ns2, and the udp socket is created in ns1.

ip netns add ns1 ip netns add ns2 ip -n ns1 link add netns ns2 name gtp0 type gtp role sgsn ip netns del ns1

Let's link the device to the socket's netns instead.

Now, gtp_net_exit_batch_rtnl() needs another netdev iteration to remove all gtp devices in the netns.

[0]: ref_tracker: net notrefcnt@000000003d6e7d05 has 1/2 users at sk_alloc (./include/net/net_namespace.h:345 net/core/sock.c:2236) inet_create (net/ipv4/af_inet.c:326 net/ipv4/af_inet.c:252) __sock_create (net/socket.c:1558) udp_sock_create4 (net/ipv4/udp_tunnel_core.c:18) gtp_create_sock (./include/net/udp_tunnel.h:59 drivers/net/gtp.c:1423) gtp_create_sockets (drivers/net/gtp.c:1447) gtp_newlink (drivers/net/gtp.c:1507) rtnl_newlink (net/core/rtnetlink.c:3786 net/core/rtnetlink.c:3897 net/core/rtnetlink.c:4012) rtnetlink_rcv_msg (net/core/rtnetlink.c:6922) netlink_rcv_skb (net/netlink/af_netlink.c:2542) netlink_unicast…

openSUSE-SU-2025:20081-1 — Security update for the Linux Kernel

Security update for the Linux Kernel

RHSA-2025:11810 — Red Hat Security Advisory: kernel security update

kernel: tty: tty_buffer: Fix the softlockup issue in flush_to_ldisc kernel: perf/core: Bail out early if the request AUX area is out of bound kernel: rcu-tasks: Avoid pr_info() with spin lock in cblist_init_generic() kernel: drm/amd/display: Implement bounds check for stream encoder creation in DCN301 kernel: nbd: null check for nla_nest_start kernel: firmware: cs_dsp: Fix overflow checking of wmfw header kernel: powerpc/pseries: Whitelist dtl slub object for copying to userspace kernel: usb: xhci: prevent potential failure in handle_tx_event() for Transfer events without TRB kernel: parport: Proper fix for array out-of-bounds access kernel: blk-rq-qos: fix crash on rq_qos_wait vs. rq_qos_wake_function race kernel: ovl: fix UAF in ovl_dentry_update_reval by moving dput() in ovl_link_up kernel: wifi: iwlwifi: limit printed string from FW file kernel: ibmvnic: Use kernel helpers for hex dumps kernel: ext4: avoid journaling sb update on error if journal is destroying kernel: udmabuf: fix a buf size overflow issue during udmabuf creation kernel: net/sched: fix use-after-free in taprio_dev_notifier kernel: sunrpc: handle SVC_GARBAGE during svc auth processing as auth error

SUSE-SU-2025:02853-1 — Security update for the Linux Kernel

Security update for the Linux Kernel

UBUNTU-CVE-2025-38087

Affected: Ubuntu:16.04:LTS: linux-hwe-edge, Ubuntu:18.04:LTS: linux-aws-5.0, Ubuntu:18.04:LTS: linux-aws-5.3, Ubuntu:18.04:LTS: linux-azure, Ubuntu:18.04:LTS: linux-azure-5.3, Ubuntu:18.04:LTS: linux-azure-edge, Ubuntu:18.04:LTS: linux-gcp, Ubuntu:18.04:LTS: linux-gcp-5.3, Ubuntu:18.04:LTS: linux-gke-4.15, Ubuntu:18.04:LTS: linux-gke-5.4 and 122 more

In the Linux kernel, the following vulnerability has been resolved: net/sched: fix use-after-free in taprio_dev_notifier Since taprio’s taprio_dev_notifier() isn’t protected by an RCU read-side critical section, a race with advance_sched() can lead to a use-after-free. Adding rcu_read_lock() inside taprio_dev_notifier() prevents this.

WID-SEC-W-2025-1417 — Linux Kernel: Mehrere Schwachstellen

Ein entfernter Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuführen und nicht näher spezifizierte Auswirkungen zu erzielen.