Alertas de Seguridad de la Información

L Crítico vulnerabilidad

25/06/2026

[CVE-2026-53215] In the Linux kernel, the following vulnerability has been resolved: net: mvpp2: refill RX buffers b…

In the Linux kernel, the following vulnerability has been resolved: net: mvpp2: refill RX buffers before XDP or skb use The RX error path returns the current descriptor buffer to the hardware BM pool. That is only valid while the driver still owns the buffer. mvpp2_rx_refill() can fail after the current buffer has been handed to XDP or attached to an skb. In those cases mvpp2_run_xdp() may have…

nvdcriticovulnerabilidad CVSS 9.8 NVD

L Crítico vulnerabilidad

25/06/2026

[CVE-2026-53216] In the Linux kernel, the following vulnerability has been resolved: net: mvpp2: limit XDP frame siz…

In the Linux kernel, the following vulnerability has been resolved: net: mvpp2: limit XDP frame size to the RX buffer mvpp2 has short and long BM pools, and short pool buffers can be smaller than PAGE_SIZE. The XDP path nevertheless initializes every xdp_buff with PAGE_SIZE as frame size. XDP helpers use frame_sz to validate tail growth and to derive the hard end of the data area. Advertising P…

nvdcriticovulnerabilidad CVSS 9.8 NVD

L Alto vulnerabilidad

25/06/2026

[CVE-2026-53217] In the Linux kernel, the following vulnerability has been resolved: net: mvpp2: sync RX data at the…

In the Linux kernel, the following vulnerability has been resolved: net: mvpp2: sync RX data at the hardware packet offset mvpp2 programs the RX queue packet offset, so hardware writes received data at dma_addr + MVPP2_SKB_HEADROOM. The current CPU sync starts at dma_addr and only covers rx_bytes + MVPP2_MH_SIZE bytes, which syncs the unused headroom and misses the same number of bytes at the pa…

nvdaltovulnerabilidad CVSS 8.6 NVD

L Crítico vulnerabilidad

25/06/2026

[CVE-2026-53221] In the Linux kernel, the following vulnerability has been resolved: ip6_vti: fix incorrect tunnel m…

In the Linux kernel, the following vulnerability has been resolved: ip6_vti: fix incorrect tunnel matching in vti6_tnl_lookup() In vti6_tnl_lookup(), when an exact match for a tunnel fails, the code falls back to searching for wildcard tunnels: - Tunnels matching the packet's local address, with any remote address wildcard remote). - Tunnels matching the packet's remote address, with any loc…

nvdcriticovulnerabilidad CVSS 9.8 NVD

L Alto vulnerabilidad

25/06/2026

[CVE-2026-53205] In the Linux kernel, the following vulnerability has been resolved: accel/ivpu: Add bounds checks f…

In the Linux kernel, the following vulnerability has been resolved: accel/ivpu: Add bounds checks for firmware log indices Add validation that read and write indices in the firmware log buffer are within valid bounds (< data_size) before using them. If out-of-bounds indices are encountered (from firmware), clamp them to safe values instead of proceeding with invalid offsets. This prevents poten…

nvdaltovulnerabilidad CVSS 7.1 NVD

L Alto vulnerabilidad

25/06/2026

[CVE-2026-53209] In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: reject ove…

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: reject oversized Broadcast Announcement prepend Existing advertising instances can already hold the maximum extended advertising payload. When hci_adv_bcast_annoucement() prepends the Broadcast Announcement service data to that payload, the combined data may no longer fit in the temporary buffer used to rebu…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

25/06/2026

[CVE-2026-53212] In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_tunnel: fix use-…

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_tunnel: fix use-after-free on object destroy nft_tunnel_obj_destroy() calls metadata_dst_free() which directly kfree()s the metadata_dst, ignoring the dst_entry refcount. Packets that took a reference via dst_hold() in nft_tunnel_obj_eval() and are still queued (e.g. in a netem qdisc) are left with a dangling poin…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

25/06/2026

[CVE-2026-53198] In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free of a …

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free of a deferred file_lock on double SMB2_CANCEL A deferred byte-range lock (an SMB2_LOCK that blocks) registers an async work on conn->async_requests via setup_async_work(), with cancel_fn = smb2_remove_blocked_lock and cancel_argv[0] pointing at the struct file_lock. When the request is cancelled, the w…

nvdaltovulnerabilidad CVSS 8.8 NVD

L Alto vulnerabilidad

25/06/2026

[CVE-2026-53199] In the Linux kernel, the following vulnerability has been resolved: hv_netvsc: use kmap_local_page …

In the Linux kernel, the following vulnerability has been resolved: hv_netvsc: use kmap_local_page in netvsc_copy_to_send_buf netvsc_copy_to_send_buf() copies page buffer entries into the VMBus send buffer using phys_to_virt() on the entry PFN. Entries for the RNDIS header and the skb linear data come from kmalloc'd memory and are always in the kernel direct map, but entries for skb fragments re…

nvdaltovulnerabilidad CVSS 7.5 NVD

L Alto vulnerabilidad

25/06/2026

[CVE-2026-53200] In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Fix handling of…

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Fix handling of XN[0] when !FEAT_XNX XN has already been extracted from its bitfield position so using FIELD_PREP() on the mask that clears XN[0] is completely broken, having the effect of unconditionally granting execute permissions... Fix the obvious mistake by manipulating the right bit.

nvdaltovulnerabilidad CVSS 8.8 NVD

L Alto vulnerabilidad

25/06/2026

[CVE-2026-53201] In the Linux kernel, the following vulnerability has been resolved: Revert "drm/xe: Skip exec queue…

In the Linux kernel, the following vulnerability has been resolved: Revert "drm/xe: Skip exec queue schedule toggle if queue is idle during suspend" This reverts commit 8533051ce92015e9cc6f75e0d52119b9d91610b6. The idle-skip optimization bypasses GuC suspend, so the GPU may not perform the context switch that flushes TLB entries for invalidated userptr VMAs. In LR/preempt-fence VM mode, this ca…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

25/06/2026

[CVE-2026-53202] In the Linux kernel, the following vulnerability has been resolved: accel/ivpu: Fix signed integer …

In the Linux kernel, the following vulnerability has been resolved: accel/ivpu: Fix signed integer truncation in IPC receive Fix potential buffer overflow where firmware-supplied data_size is cast to signed int before being used in min_t(). Large unsigned values (>= 0x80000000) become negative, causing unsigned wraparound and oversized memcpy operations that can overflow the stack buffer. Chang…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

25/06/2026

[CVE-2026-53203] In the Linux kernel, the following vulnerability has been resolved: accel/ivpu: Add buffer overflow…

In the Linux kernel, the following vulnerability has been resolved: accel/ivpu: Add buffer overflow check in MS get_info_ioctl Add validation that the info size returned from the metric stream info query is not exceeded when checked against the allocated buffer size. If the firmware returns a size larger than the buffer, reject the operation with -EOVERFLOW instead of proceeding with an incorrec…

nvdaltovulnerabilidad CVSS 7.1 NVD

L Crítico vulnerabilidad

25/06/2026

[CVE-2026-53186] In the Linux kernel, the following vulnerability has been resolved: RDMA/srp: bound SRP_RSP sense c…

In the Linux kernel, the following vulnerability has been resolved: RDMA/srp: bound SRP_RSP sense copy by the received length srp_process_rsp() copies sense data from rsp->data + resp_data_len, where resp_data_len is the full 32-bit value supplied by the SRP target and is never checked against the number of bytes actually received (wc->byte_len). The copy length is bounded to SCSI_SENSE_BUFFERSI…

nvdcriticovulnerabilidad CVSS 9.1 NVD

L Alto vulnerabilidad

25/06/2026

[CVE-2026-53187] In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Validate cpu_id agai…

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Validate cpu_id against nr_cpu_ids in DMAH alloc The cpu_id attribute supplied by user space through UVERBS_ATTR_ALLOC_DMAH_CPU_ID is passed directly to cpumask_test_cpu() without first verifying that the value is within the valid CPU range. Passing such untrusted data to cpumask_test_cpu() may lead to an out-of-boun…

nvdaltovulnerabilidad CVSS 7.1 NVD

L Alto vulnerabilidad

25/06/2026

[CVE-2026-53188] In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Validate the passed …

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Validate the passed in fops for ib_get_ucaps() Sashiko pointed out it is not safe to rely only on the devt because char/block alias so if the user finds a block device with the same dev_t it can masquerade as a ucap cdev fd. Test the f_ops to only accept authentic cdevs.

nvdaltovulnerabilidad CVSS 8.8 NVD

L Alto vulnerabilidad

25/06/2026

[CVE-2026-53189] In the Linux kernel, the following vulnerability has been resolved: mm/huge_memory: update file PMD…

In the Linux kernel, the following vulnerability has been resolved: mm/huge_memory: update file PMD counter before folio_put() __split_huge_pmd_locked() updates the file/shmem RSS counter after dropping the PMD mapping's folio reference. If folio_put() drops the last reference, mm_counter_file() can later read freed folio state via folio_test_swapbacked(). Move the counter update before folio_…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

25/06/2026

[CVE-2026-53191] In the Linux kernel, the following vulnerability has been resolved: io_uring/net: inherit IORING_CQ…

In the Linux kernel, the following vulnerability has been resolved: io_uring/net: inherit IORING_CQE_F_BUF_MORE across bundle recv retries When a bundle recv retries inside io_recv_finish(), the merge logic OR the saved cflags from the previous iteration with the cflags returned by the new iteration: cflags = req->cqe.flags | (cflags & CQE_F_MASK); Bits listed in CQE_F_MASK are inherited from…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

25/06/2026

[CVE-2026-53192] In the Linux kernel, the following vulnerability has been resolved: ALSA: timer: Fix UAF at snd_tim…

In the Linux kernel, the following vulnerability has been resolved: ALSA: timer: Fix UAF at snd_timer_user_params() At releasing a timer object, e.g. when a userspace timer (CONFIG_SND_UTIMER) gets closed and snd_timer_free() is called, it tries to detach the timer instances and release the resources. However, it's still possible that other in-flight tasks are holding the timer instance where th…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

25/06/2026

[CVE-2026-53193] In the Linux kernel, the following vulnerability has been resolved: ALSA: timer: Forcibly close tim…

In the Linux kernel, the following vulnerability has been resolved: ALSA: timer: Forcibly close timer instances at closing When snd_timer object is freed via snd_timer_free() and still pending snd_timer_instance objects are assigned to the timer object, it tries to unlink all instances and just set NULL to each ti->timer, then releases the resources immediately. The problem is, however, when th…

nvdaltovulnerabilidad CVSS 7.8 NVD