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ALSA-2026:68507 — Important: kernel security, bug fix, and enhancement update

Affected: AlmaLinux:10: kernel, AlmaLinux:10: kernel-64k, AlmaLinux:10: kernel-64k-core, AlmaLinux:10: kernel-64k-debug, AlmaLinux:10: kernel-64k-debug-core, AlmaLinux:10: kernel-64k-debug-devel, AlmaLinux:10: kernel-64k-debug-devel-matched, AlmaLinux:10: kernel-64k-debug-modules, AlmaLinux:10: kernel-64k-debug-modules-core, AlmaLinux:10: kernel-64k-debug-modules-extra and 65 more

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

Security Fix(es):

* kernel: soc: qcom: socinfo: Avoid out of bounds read of serial number (CVE-2024-58007) * kernel: Linux kernel t7xx WWAN driver: Denial of Service via buffer overflow (CVE-2026-23172) * kernel: net: ena: PHC: Fix potential use-after-free in get_timestamp (CVE-2026-52971) * kernel: IB/isert: Reject login PDUs shorter than ISER_HEADERS_LEN (CVE-2026-53176) * kernel: ALSA: timer: Forcibly close timer instances at closing (CVE-2026-53193) * kernel: ALSA: timer: Fix UAF at snd_timer_user_params() (CVE-2026-53192) * kernel: wifi: mac80211: limit injected antenna index in ieee80211_parse_tx_radiotap (CVE-2026-63869) * kernel: ALSA: seq: Serialize UMP output teardown with event_input (CVE-2026-64029) * kernel: octeontx2-af: validate body pcifunc in rvu_mbox_handler_rep_event_notify (CVE-2026-63923) * kernel: wifi: iwlwifi: mvm: fix driver-set TX rates on old devices (CVE-2026-64176) * kernel: wifi: iwlwifi: mld: stop TX during firmware restart (CVE-2026-64175) * kernel: netfilter: handle unreadable frags (CVE-2026-64414) * kernel: hwrng: virtio: clamp device-reported used.len at copy_data() (CVE-2026-64456) * kernel: Linux kernel: ALSA timer use-after-free vulnerability allows privilege escalation (CVE-2026-68200) * kernel: Linux kernel SLIP: Out-of-bounds write due to race condition during MTU change (CVE-2026-68143) * kernel: Linux kernel (…

BELL-CVE-2026-64175

Affected: Alpaquita:stream: linux-lts

certfr-2026-avi-0926 — De multiples vulnérabilités ont été découvertes dans le noyau Linux d'Ubuntu. Certaines d'entre elles permettent à un a…

certfr-2026-avi-0926

EUVD-2026-348438

fkie_cve-2026-64175

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

wifi: iwlwifi: mld: stop TX during firmware restart

When iwlwifi firmware crashes (e.g., NMI_INTERRUPT_UNKNOWN on Intel BE201/Wi-Fi 7), iwl_mld_nic_error() sets mld->fw_status.in_hw_restart to true. However, iwl_mld_tx_from_txq() does not check this flag before dequeuing frames from mac80211 and pushing them to the transport layer.

Since the firmware is dead, iwl_trans_tx() returns -EIO for each frame, which then gets freed immediately. Under high-throughput conditions (e.g., Tailscale UDP traffic or active SSH sessions), this creates a tight dequeue-send-fail-free loop that wastes CPU cycles and generates rapid skb allocation churn, leading to memory pressure from slab fragmentation.

The RX path already has this guard (iwl_mld_rx_mpdu checks in_hw_restart at rx.c:1906), and so does the TXQ allocation worker (iwl_mld_add_txqs_wk at tx.c:156). Add the same guard to iwl_mld_tx_from_txq() to stop all TX during firmware restart.

Frames left in mac80211's TXQs are naturally drained after restart completes, when queue reallocation triggers iwl_mld_tx_from_txq() via iwl_mld_add_txq_list(), or when new upper-layer traffic invokes wake_tx_queue.

Tested on ASUS Zenbook 14 UX3405CA with Intel BE201 (Wi-Fi 7) on kernel 6.19.5 where the firmware crashes approximately every 10-15 minutes under Tailscale traffic.

GHSA-6wqh-xprc-m65r

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

wifi: iwlwifi: mld: stop TX during firmware restart

Tested on ASUS Zenbook 14 UX3405CA with Intel BE201 (Wi-Fi 7) on kernel 6.19.5 where the firmware crashes approximately every 10-15 minutes under Tailscale traffic.

RHSA-2026:68507 — Red Hat Security Advisory: kernel security, bug fix, and enhancement update

kernel: soc: qcom: socinfo: Avoid out of bounds read of serial number kernel: Linux kernel t7xx WWAN driver: Denial of Service via buffer overflow kernel: net: ena: PHC: Fix potential use-after-free in get_timestamp kernel: IB/isert: Reject login PDUs shorter than ISER_HEADERS_LEN kernel: ALSA: timer: Fix UAF at snd_timer_user_params() kernel: ALSA: timer: Forcibly close timer instances at closing kernel: wifi: mac80211: limit injected antenna index in ieee80211_parse_tx_radiotap kernel: octeontx2-af: validate body pcifunc in rvu_mbox_handler_rep_event_notify kernel: ALSA: seq: Serialize UMP output teardown with event_input kernel: wifi: iwlwifi: mld: stop TX during firmware restart kernel: wifi: iwlwifi: mvm: fix driver-set TX rates on old devices kernel: netfilter: handle unreadable frags kernel: hwrng: virtio: clamp device-reported used.len at copy_data() kernel: Linux kernel (ice): Denial of Service via out-of-range ptype in VIRTCHNL kernel: Linux kernel SLIP: Out-of-bounds write due to race condition during MTU change kernel: Linux kernel: ALSA timer use-after-free vulnerability allows privilege escalation kernel: net: qrtr: restrict socket creation to the initial network namespace kernel: Linux kernel: ath9k Wi-Fi driver use-after-free vulnerability leading to system crash kernel: dm_early_create: fix freeing used table on dm_resume failure

RLSA-2026:68507 — Important: kernel security, bug fix, and enhancement update

Affected: Rocky Linux:10: kernel

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

Security Fix(es):

* kernel: soc: qcom: socinfo: Avoid out of bounds read of serial number (CVE-2024-58007)

* kernel: Linux kernel t7xx WWAN driver: Denial of Service via buffer overflow (CVE-2026-23172)

* kernel: net: ena: PHC: Fix potential use-after-free in get_timestamp (CVE-2026-52971)

* kernel: IB/isert: Reject login PDUs shorter than ISER_HEADERS_LEN (CVE-2026-53176)

* kernel: ALSA: timer: Forcibly close timer instances at closing (CVE-2026-53193)

* kernel: ALSA: timer: Fix UAF at snd_timer_user_params() (CVE-2026-53192)

* kernel: wifi: mac80211: limit injected antenna index in ieee80211_parse_tx_radiotap (CVE-2026-63869)

* kernel: ALSA: seq: Serialize UMP output teardown with event_input (CVE-2026-64029)

* kernel: octeontx2-af: validate body pcifunc in rvu_mbox_handler_rep_event_notify (CVE-2026-63923)

* kernel: wifi: iwlwifi: mvm: fix driver-set TX rates on old devices (CVE-2026-64176)

* kernel: wifi: iwlwifi: mld: stop TX during firmware restart (CVE-2026-64175)

* kernel: netfilter: handle unreadable frags (CVE-2026-64414)

* kernel: hwrng: virtio: clamp device-reported used.len at copy_data() (CVE-2026-64456)

* kernel: Linux kernel: ALSA timer use-after-free vulnerability allows privilege escalation (CVE-2026-68200)

* kernel: Linux kernel SLIP: Out-of-bounds write due to race condition during MTU change (CVE-2026-68143)

* kernel: Linux kernel (ice): Denial of Servi…

UBUNTU-CVE-2026-64175

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 118 more

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mld: stop TX during firmware restart When iwlwifi firmware crashes (e.g., NMI_INTERRUPT_UNKNOWN on Intel BE201/Wi-Fi 7), iwl_mld_nic_error() sets mld->fw_status.in_hw_restart to true. However, iwl_mld_tx_from_txq() does not check this flag before dequeuing frames from mac80211 and pushing them to the transport layer. Since the firmware is dead, iwl_trans_tx() returns -EIO for each frame, which then gets freed immediately. Under high-throughput conditions (e.g., Tailscale UDP traffic or active SSH sessions), this creates a tight dequeue-send-fail-free loop that wastes CPU cycles and generates rapid skb allocation churn, leading to memory pressure from slab fragmentation. The RX path already has this guard (iwl_mld_rx_mpdu checks in_hw_restart at rx.c:1906), and so does the TXQ allocation worker (iwl_mld_add_txqs_wk at tx.c:156). Add the same guard to iwl_mld_tx_from_txq() to stop all TX during firmware restart. Frames left in mac80211's TXQs are naturally drained after restart completes, when queue reallocation triggers iwl_mld_tx_from_txq() via iwl_mld_add_txq_list(), or when new upper-layer traffic invokes wake_tx_queue. Tested on ASUS Zenbook 14 UX3405CA with Intel BE201 (Wi-Fi 7) on kernel 6.19.5 where the firmware crashes approximately every 10-15 minutes under Tailscale traffic.

WID-SEC-W-2026-2403 — Linux Kernel: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff

Ein Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen, möglicherweise Sicherheitsmaßnahmen zu umgehen, einen Denial-of-Service-Zustand herbeizuführen oder vertrauliche Informationen offenzulegen.