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ALSA-2025:20518 — Moderate: kernel security update

Affected: 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, AlmaLinux:9: kernel-64k-debug-modules-extra and 64 more

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

Security Fix(es):

* kernel: can: isotp: fix potential CAN frame reception race in isotp_rcv() (CVE-2022-48830) * kernel: soc: qcom: cmd-db: Map shared memory as WC, not WB (CVE-2024-46689) * kernel: Squashfs: sanity check symbolic link size (CVE-2024-46744) * kernel: vfs: fix race between evice_inodes() and find_inode()&iput() (CVE-2024-47679) * kernel: x86/tdx: Fix "in-kernel MMIO" check (CVE-2024-47727) * kernel: rxrpc: Fix a race between socket set up and I/O thread creation (CVE-2024-49864) * kernel: io_uring: check if we need to reschedule during overflow flush (CVE-2024-50060) * kernel: can: m_can: pci: add missing m_can_class_free_dev() in probe/remove methods (CVE-2022-49024) * kernel: posix-clock: Fix missing timespec64 check in pc_clock_settime() (CVE-2024-50195) * kernel: rxrpc: Fix missing locking causing hanging calls (CVE-2024-50294) * kernel: io_uring/rw: fix missing NOWAIT check for O_DIRECT start write (CVE-2024-53052) * kernel: afs: Fix lock recursion (CVE-2024-53090) * kernel: virtio/vsock: Fix accept_queue memory leak (CVE-2024-53119) * kernel: KVM: VMX: Bury Intel PT virtualization (guest/host mode) behind CONFIG_BROKEN (CVE-2024-53135) * kernel: xen: Xen hypercall page unsafe against speculative attacks (Xen Security Advisory 466) (CVE-2024-53241) * kernel: RDMA/rxe: Fix the qp flush warnings in req (CVE-2024-53229) * kernel:…

bdu:2025-12189

BELL-CVE-2025-21848

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

certfr-2025-avi-0307 — De multiples vulnérabilités ont été découvertes dans le noyau Linux de SUSE. Certaines d'entre elles permettent à un at…

certfr-2025-avi-0307

cnvd-2025-05378

EUVD-2026-336317

fkie_cve-2025-21848

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

nfp: bpf: Add check for nfp_app_ctrl_msg_alloc()

Add check for the return value of nfp_app_ctrl_msg_alloc() in nfp_bpf_cmsg_alloc() to prevent null pointer dereference.

GHSA-3ffg-fcmm-x4pp

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

nfp: bpf: Add check for nfp_app_ctrl_msg_alloc()

Add check for the return value of nfp_app_ctrl_msg_alloc() in nfp_bpf_cmsg_alloc() to prevent null pointer dereference.

ICSA-25-162-05 — Siemens SIMATIC S7-1500 CPU family

sshd in OpenSSH 6.2 through 8.x before 8.8, when certain non-default configurations are used, allows privilege escalation because supplemental groups are not initialized as expected. Helper programs for AuthorizedKeysCommand and AuthorizedPrincipalsCommand may run with privileges associated with group memberships of the sshd process, if the configuration specifies running the command as a different user. A flaw was found in glibc. When the getaddrinfo function is called with the AF_UNSPEC address family and the system is configured with no-aaaa mode via /etc/resolv.conf, a DNS response via TCP larger than 2048 bytes can potentially disclose stack contents through the function returned address data, and may cause a crash. A flaw was found in glibc. In an extremely rare situation, the getaddrinfo function may access memory that has been freed, resulting in an application crash. This issue is only exploitable when a NSS module implements only the _nss_*_gethostbyname2_r and _nss_*_getcanonname_r hooks without implementing the _nss_*_gethostbyname3_r hook. The resolved name should return a large number of IPv6 and IPv4, and the call to the getaddrinfo function should have the AF_INET6 address family with AI_CANONNAME, AI_ALL and AI_V4MAPPED as flags. A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted GLIBC_TUNABLES environment var…

msrc_CVE-2025-21848 — nfp: bpf: Add check for nfp_app_ctrl_msg_alloc()

msrc_CVE-2025-21848

OESA-2025-1446 — kernel security update

Affected: openEuler:24.03-LTS-SP1: kernel

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

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

ntb_hw_switchtec: Fix shift-out-of-bounds in switchtec_ntb_mw_set_trans

There is a kernel API ntb_mw_clear_trans() would pass 0 to both addr and size. This would make xlate_pos negative.

[ 23.734156] switchtec switchtec0: MW 0: part 0 addr 0x0000000000000000 size 0x0000000000000000 [ 23.734158] ================================================================================ [ 23.734172] UBSAN: shift-out-of-bounds in drivers/ntb/hw/mscc/ntb_hw_switchtec.c:293:7 [ 23.734418] shift exponent -1 is negative

Ensuring xlate_pos is a positive or zero before BIT.(CVE-2023-53034)

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

drm/msm/gem: prevent integer overflow in msm_ioctl_gem_submit()

The "submit->cmd[i].size" and "submit->cmd[i].offset" variables are u32 values that come from the user via the submit_lookup_cmds() function. This addition could lead to an integer wrapping bug so use size_add() to prevent that.

Patchwork: https://patchwork.freedesktop.org/patch/624696/(CVE-2024-52559)

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

fs/ntfs3: Mark inode as bad as soon as error detected in mi_enum_attr()

Extended the `mi_enum_attr()` function interface with an additional parameter, `struct ntfs_inode *ni`, to allow marking the inode as bad as soon as an error i…

RHSA-2025:20518 — Red Hat Security Advisory: kernel security update

kernel: can: isotp: fix potential CAN frame reception race in isotp_rcv() kernel: can: m_can: pci: add missing m_can_class_free_dev() in probe/remove methods kernel: can: isotp: sanitize CAN ID checks in isotp_bind() kernel: powerpc/papr_scm: don't requests stats with '0' sized stats buffer kernel: efi: Do not import certificates from UEFI Secure Boot for T2 Macs kernel: powerpc/xics: fix refcount leak in icp_opal_init() kernel: powerpc/xive: Fix refcount leak in xive_spapr_init kernel: list: fix a data-race around ep->rdllist kernel: powerpc/xive/spapr: correct bitmap allocation size kernel: ima: Fix potential memory leak in ima_init_crypto() kernel: ima: Fix a potential integer overflow in ima_appraise_measurement kernel: tracing/histograms: Fix memory leak problem kernel: usbnet: fix memory leak in error case kernel: linux/dim: Fix divide by 0 in RDMA DIM kernel: net: tun: unlink NAPI from device on destruction kernel: can: j1939: j1939_send_one(): fix missing CAN header initialization kernel: intel_th: Fix a resource leak in an error handling path kernel: powerpc/rtas: avoid scheduling in rtas_os_term() kernel: can: isotp: split tx timer into transmission and timeout kernel: Linux kernel: Denial of Service in xsk_diag due to use-after-free during socket cleanup kernel: smc: Fix use-after-free in tcp_write_timer_handler() kernel: inotify: Avoid reporting event with invalid wd kernel: Linux kernel (CAN J1939): Denial of Service via deadlock kernel: net/smc: fix potential p…

SSA-082556 — SSA-082556: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP V3.1.5

Multiple vulnerabilities have been identified in the additional GNU/Linux subsystem of the firmware version V3.1.5 for the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP (incl. SIPLUS variant).

Siemens has released new versions for several affected products and recommends to update to the latest versions. Siemens is preparing further fix versions and recommends specific countermeasures for products where fixes are not, or not yet available.

Note: This SSA advises vulnerabilities for firmware version V3.1.5 only; for version V3.1.6 refer to SSA-019113.

SUSE-SU-2025:01919-1 — Security update for the Linux Kernel

Security update for the Linux Kernel

UBUNTU-CVE-2025-21848

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 171 more

In the Linux kernel, the following vulnerability has been resolved: nfp: bpf: Add check for nfp_app_ctrl_msg_alloc() Add check for the return value of nfp_app_ctrl_msg_alloc() in nfp_bpf_cmsg_alloc() to prevent null pointer dereference.

WID-SEC-W-2025-0545 — Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Ein Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen Denial of Service Zustand herbeizuführen und um nicht näher beschriebene Auswirkungen zu verursachen.