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ALSA-2024:6997 — Important: kernel security update

Affected: AlmaLinux:9: bpftool, AlmaLinux:9: kernel, AlmaLinux:9: kernel-64k, AlmaLinux:9: kernel-64k-core, AlmaLinux:9: kernel-64k-debug, AlmaLinux:9: kernel-64k-debug-core, AlmaLinux:9: kernel-64k-debug-devel, AlmaLinux:9: kernel-64k-debug-devel-matched, AlmaLinux:9: kernel-64k-debug-modules, AlmaLinux:9: kernel-64k-debug-modules-core and 52 more

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

Security Fix(es):

* kernel: uio: Fix use-after-free in uio_open (CVE-2023-52439) * kernel: net/sched: act_mirred: don't override retval if we already lost the skb (CVE-2024-26739) * kernel: ARM: 9359/1: flush: check if the folio is reserved for no-mapping addresses (CVE-2024-26947) * kernel: scsi: qla2xxx: Fix command flush on cable pull (CVE-2024-26931) * kernel: scsi: qla2xxx: Fix double free of the ha->vp_map pointer (CVE-2024-26930) * kernel: scsi: qla2xxx: Fix double free of fcport (CVE-2024-26929) * kernel: fork: defer linking file vma until vma is fully initialized (CVE-2024-27022) * kernel: KVM: x86/mmu: x86: Don't overflow lpage_info when checking attributes (CVE-2024-26991) * kernel: bpf, sockmap: Prevent lock inversion deadlock in map delete elem (CVE-2024-35895) * kernel: tty: n_gsm: fix possible out-of-bounds in gsm0_receive() (CVE-2024-36016) * kernel: gpiolib: cdev: Fix use after free in lineinfo_changed_notify (CVE-2024-36899) * kernel: cpufreq: exit() callback is optional (CVE-2024-38615) * kernel: ring-buffer: Fix a race between readers and resize checks (CVE-2024-38601) * kernel: cppc_cpufreq: Fix possible null pointer dereference (CVE-2024-38573) * kernel: gfs2: Fix potential glock use-after-free on unmount (CVE-2024-38570) * kernel: wifi: nl80211: Avoid address calculations via out of bounds array indexing (CVE-2024-38562)…

bdu:2025-07485

BELL-CVE-2024-26739

Affected: Alpaquita:23: linux-lts, Alpaquita:25: linux-lts, Alpaquita:stream: linux-lts

certfr-2024-avi-0420 — De multiples vulnérabilités ont été découvertes dans le noyau Linux de SUSE. Certaines d'entre elles permettent à un at…

certfr-2024-avi-0420

EUVD-2026-345500

fkie_cve-2024-26739

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

net/sched: act_mirred: don't override retval if we already lost the skb

If we're redirecting the skb, and haven't called tcf_mirred_forward(), yet, we need to tell the core to drop the skb by setting the retcode to SHOT. If we have called tcf_mirred_forward(), however, the skb is out of our hands and returning SHOT will lead to UaF.

Move the retval override to the error path which actually need it.

GHSA-rwch-8cp4-7v7r

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

net/sched: act_mirred: don't override retval if we already lost the skb

Move the retval override to the error path which actually need it.

gsd-2024-26739

msrc_CVE-2024-26739 — net/sched: act_mirred: don't override retval if we already lost the skb

msrc_CVE-2024-26739

OESA-2024-1617 — kernel security update

Affected: openEuler:20.03-LTS-SP1: kernel

The Linux Kernel, the operating system core itself. Security Fix(es): In the Linux kernel, the following vulnerability has been resolved: x86/kvm: Disable kvmclock on all CPUs on shutdown Currenly, we disable kvmclock from machine_shutdown() hook and this only happens for boot CPU. We need to disable it for all CPUs to guard against memory corruption e.g. on restore from hibernate. Note, writing '0' to kvmclock MSR doesn't clear memory location, it just prevents hypervisor from updating the location so for the short while after write and while CPU is still alive, the clock remains usable and correct so we don't need to switch to some other clocksource.(CVE-2021-47110) In the Linux kernel, the following vulnerability has been resolved: i40e: Fix NULL ptr dereference on VSI filter sync Remove the reason of null pointer dereference in sync VSI filters. Added new I40E_VSI_RELEASING flag to signalize deleting and releasing of VSI resources to sync this thread with sync filters subtask. Without this patch it is possible to start update the VSI filter list after VSI is removed, that's causing a kernel oops.(CVE-2021-47184) In the Linux kernel, the following vulnerability has been resolved: erofs: fix pcluster use-after-free on UP platforms During stress testing with CONFIG_SMP disabled, KASAN reports as below: ================================================================== BUG: KASAN: use-after-free in __mutex_lock+0xe…

RHSA-2024:4823 — Red Hat Security Advisory: kernel security update

kernel: can: j1939: j1939_netdev_start(): fix UAF for rx_kref of j1939_priv kernel: vmwgfx: integer overflow in vmwgfx_execbuf.c kernel: vmwgfx: use-after-free in vmw_cmd_res_check kernel: vmwgfx: use-after-free in vmw_execbuf_tie_context kernel: net: amd-xgbe: Fix skb data length underflow kernel: vmwgfx: reference count issue leads to use-after-free in surface handling kernel: vmwgfx: race condition leading to information disclosure vulnerability kernel: vmwgfx: double free within the handling of vmw_buffer_object objects kernel: smb: client: fix potential OOBs in smb2_parse_contexts() kernel: uio: Fix use-after-free in uio_open kernel: intel: Fix NULL pointer dereference issue in upi_fill_topology() kernel: Bluetooth: hci_codec: Fix leaking content of local_codecs kernel: net: bridge: data races indata-races in br_handle_frame_finish() kernel: sched/psi: Fix use-after-free in ep_remove_wait_queue() kernel: scsi: ibmvfc: Remove BUG_ON in the case of an empty event pool kernel: blk-cgroup: Reinit blkg_iostat_set after clearing in blkcg_reset_stats() kernel: stack overflow problem in Open vSwitch kernel module leading to DoS kernel: nftables: nft_set_rbtree skip end interval element from gc kernel: netfilter: nft_limit: reject configurations that cause integer overflow kernel: hv_netvsc: Fix race condition between netvsc_probe and netvsc_remove kernel: ext4: fix double-free of blocks due to wrong extents moved_len kernel: net/sched: act_mirred: don't override retval if we al…

RHSA-2024:6997 — Red Hat Security Advisory: kernel security update

kernel: uio: Fix use-after-free in uio_open kernel: Input: cyapa - add missing input core locking to suspend/resume functions kernel: net/sched: act_mirred: don't override retval if we already lost the skb kernel: scsi: qla2xxx: Fix double free of fcport kernel: scsi: qla2xxx: Fix double free of the ha->vp_map pointer kernel: scsi: qla2xxx: Fix command flush on cable pull kernel: ARM: 9359/1: flush: check if the folio is reserved for no-mapping addresses kernel: KVM: x86/mmu: x86: Don't overflow lpage_info when checking attributes kernel: fork: defer linking file vma until vma is fully initialized kernel: bpf, sockmap: Prevent lock inversion deadlock in map delete elem kernel: tty: n_gsm: fix possible out-of-bounds in gsm0_receive() kernel: gpiolib: cdev: Fix use after free in lineinfo_changed_notify kernel: wifi: nl80211: Avoid address calculations via out of bounds array indexing kernel: gfs2: Fix potential glock use-after-free on unmount kernel: cppc_cpufreq: Fix possible null pointer dereference kernel: ring-buffer: Fix a race between readers and resize checks kernel: cpufreq: exit() callback is optional kernel: ACPICA: Revert "ACPICA: avoid Info: mapping multiple BARs. Your kernel is fine." kernel: wifi: mac80211: Avoid address calculations via out of bounds array indexing kernel: wifi: mt76: replace skb_put with skb_put_zero kernel: net, sunrpc: Remap EPERM in case of connection failure in xs_tcp_setup_socket

SUSE-SU-2024:1642-1 — Security update for the Linux Kernel

Security update for the Linux Kernel

UBUNTU-CVE-2024-26739

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:Pro:18.04:LTS: linux-aws-5.4, Ubuntu:18.04:LTS: linux-azure, Ubuntu:18.04:LTS: linux-azure-5.3, Ubuntu:Pro:18.04:LTS: linux-azure-5.4, Ubuntu:18.04:LTS: linux-azure-edge, Ubuntu:18.04:LTS: linux-gcp, Ubuntu:18.04:LTS: linux-gcp-5.3 and 133 more

In the Linux kernel, the following vulnerability has been resolved: net/sched: act_mirred: don't override retval if we already lost the skb If we're redirecting the skb, and haven't called tcf_mirred_forward(), yet, we need to tell the core to drop the skb by setting the retcode to SHOT. If we have called tcf_mirred_forward(), however, the skb is out of our hands and returning SHOT will lead to UaF. Move the retval override to the error path which actually need it.

WID-SEC-W-2024-0773 — Linux Kernel: Mehrere Schwachstellen

Ein lokaler Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuführen, seine Privilegien eskalieren oder einen nicht näher spezifizierten Angriff durchzuführen.