Alertas de Seguridad de la Información

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

M Alto vulnerabilidad

25/07/2026

[CVE-2026-64524] In the Linux kernel, the following vulnerability has been resolved: drm/hyperv: validate resolution…

In the Linux kernel, the following vulnerability has been resolved: drm/hyperv: validate resolution_count and fix WIN8 fallback A SYNTHVID_RESOLUTION_RESPONSE with resolution_count > 64 walks past the supported_resolution[SYNTHVID_MAX_RESOLUTION_COUNT] array in the parse loop. Bound resolution_count against the array size, folded into the existing zero-check. When the WIN10 resolution probe fai…

nvdaltovulnerabilidad CVSS 7.7 NVD

M Alto vulnerabilidad

25/07/2026

[CVE-2026-64510] In the Linux kernel, the following vulnerability has been resolved: ACPI: NFIT: core: Fix acpi_nfit…

In the Linux kernel, the following vulnerability has been resolved: ACPI: NFIT: core: Fix acpi_nfit_init() error cleanup If acpi_nfit_init() fails after adding the acpi_desc object to the acpi_descs list, that object is never removed from that list because the acpi_nfit_shutdown() devm action is not added for the NFIT device in that case. Next, the acpi_nfit_init() failure causes acpi_nfit_prob…

nvdaltovulnerabilidad CVSS 7.0 NVD

M Alto vulnerabilidad

25/07/2026

[CVE-2026-64515] In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix MLE defragm…

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix MLE defragmentation If either reconf or EPCS multi-link element (MLE) is contained in a non-transmitted profile, the defragmentation routine is called with a pointer to the defragmented copy, but the original elements. This is incorrect for two reasons: - if the original defragmentation was needed, it will …

nvdaltovulnerabilidad CVSS 8.3 NVD

M Alto vulnerabilidad

25/07/2026

[CVE-2026-64516] In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vce1: Fix VCE 1 firm…

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vce1: Fix VCE 1 firmware size and offsets The VCPU BO contains the actual FW at an offset, but it was not calculated into the VCPU BO size. Subtract this from the FW size to make sure there is no out of bounds access. Make sure the stack and data offsets are aligned to the 32K TLB size. Check that the FW microcode a…

nvdaltovulnerabilidad CVSS 8.8 NVD

M Alto vulnerabilidad

25/07/2026

[CVE-2026-64501] In the Linux kernel, the following vulnerability has been resolved: iio: adc: ad_sigma_delta: fix C…

In the Linux kernel, the following vulnerability has been resolved: iio: adc: ad_sigma_delta: fix CS held asserted and state leaks In ad_sigma_delta_single_conversion(), set_mode(AD_SD_MODE_IDLE) and disable_one() were called from the out: block while keep_cs_asserted was still true. This caused any SPI transfer issued by those callbacks to carry cs_change=1, leaving CS permanently asserted afte…

nvdaltovulnerabilidad CVSS 7.1 NVD

M Alto vulnerabilidad

25/07/2026

[CVE-2026-64502] In the Linux kernel, the following vulnerability has been resolved: iio: adc: ad_sigma_delta: fix c…

In the Linux kernel, the following vulnerability has been resolved: iio: adc: ad_sigma_delta: fix clear_pending_event for registerless devices ad_sigma_delta_clear_pending_event() falls through to the status register read path for devices with has_registers = false and no rdy_gpiod. For such devices, ad_sd_read_reg() skips the address byte entirely and clocks raw MISO bytes with no address phase…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

25/07/2026

[CVE-2026-64496] In the Linux kernel, the following vulnerability has been resolved: iio: event: Fix event FIFO rese…

In the Linux kernel, the following vulnerability has been resolved: iio: event: Fix event FIFO reset race `iio_event_getfd()` creates the event file descriptor with `anon_inode_getfd()`, which allocates a new fd, creates the anonymous file and installs it in the process fd table before returning to the caller. The IIO code resets the event FIFO after `anon_inode_getfd()` has returned, but befor…

nvdaltovulnerabilidad CVSS 7.1 NVD