Alertas de Seguridad de la Información

M Alto vulnerabilidad

27/07/2026

[CVE-2026-64548] In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: reject overflowin…

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: reject overflowing copy + len in bpf_msg_push_data() When the scatterlist ring is full or nearly full, bpf_msg_push_data() enters a copy fallback path and computes copy + len for the page allocation size. Since len comes from BPF with arg3_type = ARG_ANYTHING and both are u32, a crafted len can wrap the sum to a sm…

nvdaltovulnerabilidad CVSS 8.4 NVD

M Alto vulnerabilidad

27/07/2026

[CVE-2026-64550] In the Linux kernel, the following vulnerability has been resolved: net: qualcomm: rmnet: validate …

In the Linux kernel, the following vulnerability has been resolved: net: qualcomm: rmnet: validate MAP frame length before ingress parsing When ingress deaggregation is disabled, rmnet_map_ingress_handler() passes the skb straight to __rmnet_map_ingress_handler(), skipping the length validation that rmnet_map_deaggregate() performs on the aggregated path. The parser then dereferences the MAP hea…

nvdaltovulnerabilidad CVSS 7.3 NVD

M Alto vulnerabilidad

27/07/2026

[CVE-2026-64539] In the Linux kernel, the following vulnerability has been resolved: Bluetooth: eir: Fix stack OOB w…

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: eir: Fix stack OOB write when prepending the Flags AD eir_create_adv_data() builds the advertising data into a fixed-size buffer ("size", 31 for the legacy path). It may prepend a 3-byte "Flags" AD structure (LE_AD_NO_BREDR on an LE-only controller) and then copies the per-instance data without checking that it still …

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

27/07/2026

[CVE-2026-64540] In the Linux kernel, the following vulnerability has been resolved: usbnet: gl620a: fix out-of-boun…

In the Linux kernel, the following vulnerability has been resolved: usbnet: gl620a: fix out-of-bounds read in genelink_rx_fixup() genelink_rx_fixup() splits an aggregated RX frame into its individual packets, using a per-packet length taken from device-supplied data. That length is only bounded by GL_MAX_PACKET_LEN (1514); it is never compared against how many bytes were actually received. A ma…

nvdaltovulnerabilidad CVSS 8.1 NVD

M Crítico vulnerabilidad

27/07/2026

[CVE-2026-64541] In the Linux kernel, the following vulnerability has been resolved: net/smc: fix UAF in smc_cdc_rx_…

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix UAF in smc_cdc_rx_handler() by pinning the socket smc_cdc_rx_handler() looks up the connection by token under the link group's conns_lock, drops the lock, and then dereferences conn and the smc_sock derived from it, ending in sock_hold(&smc->sk) inside smc_cdc_msg_recv(). No reference is held across the lock release…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Alto vulnerabilidad

27/07/2026

[CVE-2026-64543] In the Linux kernel, the following vulnerability has been resolved: tipc: fix use-after-free of the…

In the Linux kernel, the following vulnerability has been resolved: tipc: fix use-after-free of the discoverer in tipc_disc_rcv() bearer_disable() frees b->disc with tipc_disc_delete()'s plain kfree(), but tipc_disc_rcv() still dereferences b->disc in RX softirq under rcu_read_lock() (tipc_udp_recv -> tipc_rcv -> tipc_disc_rcv). L2 bearers are safe thanks to the synchronize_net() in tipc_disabl…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

27/07/2026

[CVE-2026-24252] NVIDIA NeMo for Linux contains a vulnerability where an attacker may cause OS command injection. A s…

NVIDIA NeMo for Linux contains a vulnerability where an attacker may cause OS command injection. A successful exploit of this vulnerability may lead to code execution, data tampering, escalation of privileges and information disclosure.

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

27/07/2026

[CVE-2026-17523] A flaw was found in the Linux kernel in net/can/bcm.c in can: bcm, where an unprivileged local user …

A flaw was found in the Linux kernel in net/can/bcm.c in can: bcm, where an unprivileged local user can exploit this vulnerability to execute arbitrary code within the kernel, which leads to a local privilege escalation (LPE). This allows the attacker to gain root privileges and take full control of the affected system.

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

27/07/2026

[CVE-2026-64531] In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: reject oversi…

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: reject oversized nested action attrs Open vSwitch stores generated flow actions as nlattrs, whose nla_len field is u16. Commit a1e64addf3ff ("net: openvswitch: remove misbehaving actions length check") allowed the total sw_flow_actions stream to grow beyond 64 KiB, which is valid, but also removed the last guar…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

27/07/2026

[CVE-2026-64532] In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: bound NTFS_DE view.da…

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: bound NTFS_DE view.data_off in UpdateRecordData{Root,Allocation} In do_action()'s UpdateRecordDataRoot (fslog.c:3489) and UpdateRecordDataAllocation (fslog.c:3697) cases, the memmove destination is `Add2Ptr(e, le16_to_cpu(e->view.data_off))`, where e->view.data_off comes from an on-disk NTFS_DE inside an INDEX_ROOT or …

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

27/07/2026

[CVE-2026-64533] In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: validate lcns_follow …

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: validate lcns_follow in log_replay conversion log_replay() converts DIR_PAGE_ENTRY_32 records into DIR_PAGE_ENTRY records when replaying version 0 restart tables. During this conversion, the memmove() length is derived directly from the on-disk lcns_follow field: memmove(&dp->vcn, &dp0->vcn_low, 2 * sizeof(u64) + …

nvdaltovulnerabilidad CVSS 7.8 NVD

M Crítico vulnerabilidad

27/07/2026

[CVE-2026-64534] In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: check INIT_FAILED be…

In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: check INIT_FAILED before nvmet_req_uninit in digest error path In nvmet_tcp_try_recv_ddgst(), when a data digest mismatch is detected, nvmet_req_uninit() is called unconditionally. However, if the command arrived via the nvmet_tcp_handle_req_failure() path, nvmet_req_init() had returned false and percpu_ref_tryget_liv…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Crítico vulnerabilidad

27/07/2026

[CVE-2026-64535] In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: Fix potential UAF wh…

In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: Fix potential UAF when ddgst mismatch Shivam Kumar found via vulnerability testing: When data digest is enabled on an NVMe/TCP connection and a digest mismatch occurs on a non-final H2C_DATA PDU during an R2T-based data transfer, the digest error handler in nvmet_tcp_try_recv_ddgst() calls nvmet_req_uninit() — which p…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Alto vulnerabilidad

27/07/2026

[CVE-2026-64536] In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix OOB rea…

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix OOB reads in is_ap_in_tkip() IE loop The loop in is_ap_in_tkip() iterates over IEs without verifying that enough bytes remain before dereferencing the IE header or its payload: - pIE->element_id and pIE->length are read without checking that i + sizeof(*pIE)

nvdaltovulnerabilidad CVSS 8.1 NVD

M Crítico vulnerabilidad

26/07/2026

[CVE-2026-64530] In the Linux kernel, the following vulnerability has been resolved: net/sched: cls_api: Handle TC_A…

In the Linux kernel, the following vulnerability has been resolved: net/sched: cls_api: Handle TC_ACT_CONSUMED in tcf_qevent_handle tcf_classify() can return TC_ACT_CONSUMED while the skb is held by the defragmentation engine (e.g. act_ct on out-of-order fragments). When that happens the skb is no longer owned by the caller and must not be touched again. tcf_qevent_handle() did not handle TC_AC…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Alto vulnerabilidad

26/07/2026

[CVE-2024-14040] In the Linux kernel, the following vulnerability has been resolved: net: nexthop: Increase weight t…

In the Linux kernel, the following vulnerability has been resolved: net: nexthop: Increase weight to u16 In CLOS networks, as link failures occur at various points in the network, ECMP weights of the involved nodes are adjusted to compensate. With high fan-out of the involved nodes, and overall high number of nodes, a (non-)ECMP weight ratio that we would like to configure does not fit into 8 bi…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

25/07/2026

[CVE-2026-64529] In the Linux kernel, the following vulnerability has been resolved: crypto: qat - remove unused cha…

In the Linux kernel, the following vulnerability has been resolved: crypto: qat - remove unused character device and IOCTLs The QAT driver exposes a character device (qat_adf_ctl) with IOCTLs for device configuration, start, stop, status query and enumeration. These IOCTLs are not part of any public uAPI header and have no known in-tree or out-of-tree users. Device lifecycle is already managed v…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

25/07/2026

[CVE-2026-64520] In the Linux kernel, the following vulnerability has been resolved: firmware: arm_ffa: Bound PARTIT…

In the Linux kernel, the following vulnerability has been resolved: firmware: arm_ffa: Bound PARTITION_INFO_GET_REGS copies The register-based PARTITION_INFO_GET path trusted the firmware-provided indices when copying partition descriptors into the caller buffer. Reject inconsistent counts or index progressions so the copy loop cannot write past the allocated array. (fixed cur_idx when exactly …

nvdaltovulnerabilidad CVSS 8.4 NVD

M Alto vulnerabilidad

25/07/2026

[CVE-2026-64522] In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix eswitch mode blo…

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix eswitch mode block underflow on IPsec acquire SA mlx5e_xfrm_add_state() handles acquire-flow temporary SAs by allocating software state and skipping hardware offload setup. That path jumps to the common success label before taking the eswitch mode block. After tunnel-mode validation was moved earlier, the common …

nvdaltovulnerabilidad CVSS 8.8 NVD

M Crítico vulnerabilidad

25/07/2026

[CVE-2026-64523] In the Linux kernel, the following vulnerability has been resolved: net/handshake: Take a long-live…

In the Linux kernel, the following vulnerability has been resolved: net/handshake: Take a long-lived file reference at submit handshake_nl_accept_doit() needs the file pointer backing req->hr_sk->sk_socket to survive the window between handshake_req_next() and the subsequent FD_PREPARE() and get_file(). The submit-side sock_hold() does not provide that. sk_refcnt keeps struct sock alive, but st…

nvdcriticovulnerabilidad CVSS 9.8 NVD