Alertas de Seguridad de la Información

M Alto vulnerabilidad

19/07/2026

[CVE-2026-64098] In the Linux kernel, the following vulnerability has been resolved: drm/virtio: use uninterruptible…

In the Linux kernel, the following vulnerability has been resolved: drm/virtio: use uninterruptible resv lock for plane updates virtio_gpu_cursor_plane_update() and virtio_gpu_resource_flush() lock the framebuffer BO's dma_resv via virtio_gpu_array_lock_resv() and ignore its return value. The function can fail with -EINTR from dma_resv_lock_interruptible() (signal during lock wait) or with -ENOM…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

19/07/2026

[CVE-2026-64099] In the Linux kernel, the following vulnerability has been resolved: drm/v3d: Fix use-after-free of …

In the Linux kernel, the following vulnerability has been resolved: drm/v3d: Fix use-after-free of CPU job query arrays on error path The CPU job ioctl's fail label calls kvfree() on cpu_job's timestamp and performance query arrays after v3d_job_cleanup(), which drops the job's last reference and frees cpu_job. Reading cpu_job at that point is a use-after-free. Also, on the early v3d_job_init() …

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

19/07/2026

[CVE-2026-64084] In the Linux kernel, the following vulnerability has been resolved: hwmon: (pmbus/adm1266) cap PDIO…

In the Linux kernel, the following vulnerability has been resolved: hwmon: (pmbus/adm1266) cap PDIO scan in get_multiple at ADM1266_PDIO_NR adm1266_gpio_get_multiple() iterates the PDIO portion of the caller-supplied mask using for_each_set_bit_from(gpio_nr, mask, ADM1266_GPIO_NR + ADM1266_PDIO_STATUS) { ... } where ADM1266_PDIO_STATUS is the PMBus command code (0xE9, i.e. 233), n…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

19/07/2026

[CVE-2026-64086] In the Linux kernel, the following vulnerability has been resolved: hwmon: (pmbus/adm1266) include …

In the Linux kernel, the following vulnerability has been resolved: hwmon: (pmbus/adm1266) include PEC byte in pmbus_block_xfer read buffer adm1266_pmbus_block_xfer() sets up the read transaction with .buf = data->read_buf, .len = ADM1266_PMBUS_BLOCK_MAX + 2, but read_buf in struct adm1266_data is declared as u8 read_buf[ADM1266_PMBUS_BLOCK_MAX + 1]; For a max-length block response (lengt…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

19/07/2026

[CVE-2026-64088] In the Linux kernel, the following vulnerability has been resolved: batman-adv: tt: fix negative tt…

In the Linux kernel, the following vulnerability has been resolved: batman-adv: tt: fix negative tt_buff_len batadv_orig_node::tt_buff_len was declared as s16, but the field is never intended to hold a negative value. When a value greater than 32767 is assigned, it wraps to a negative signed integer. In batadv_send_other_tt_response(), tt_buff_len is temporarily widened to s32. The incorrectly …

nvdaltovulnerabilidad CVSS 8.8 NVD

M Crítico vulnerabilidad

19/07/2026

[CVE-2026-64089] In the Linux kernel, the following vulnerability has been resolved: batman-adv: tt: fix negative la…

In the Linux kernel, the following vulnerability has been resolved: batman-adv: tt: fix negative last_changeset_len batadv_piv_tt::last_changeset_len len was declared as s16, but the field is never intended to hold a negative value. When a value greater than 32767 is assigned, it wraps to a negative signed integer. In batadv_send_my_tt_response(), last_changeset_len is temporarily widened to s3…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Crítico vulnerabilidad

19/07/2026

[CVE-2026-64091] In the Linux kernel, the following vulnerability has been resolved: batman-adv: tt: fix TOCTOU race…

In the Linux kernel, the following vulnerability has been resolved: batman-adv: tt: fix TOCTOU race for reported vlans The local TT based TVLV is generated by first checking the number of VLANs which have at least one TT entry. A new buffer with the correct size for the VLANs is then allocated. Only then, the list of VLANs s used to fill the VLAN entries in the buffer. During this time, the mesh…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Alto vulnerabilidad

19/07/2026

[CVE-2026-64074] In the Linux kernel, the following vulnerability has been resolved: fs/statmount: fix slab out-of-b…

In the Linux kernel, the following vulnerability has been resolved: fs/statmount: fix slab out-of-bounds write in statmount_mnt_idmap statmount_mnt_idmap() writes one mapping with seq_printf() and then manually advances seq->count to include the NUL separator. If seq_printf() overflows, seq_set_overflow() sets seq->count to seq->size. The manual seq->count++ changes this to seq->size + 1. seq_h…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

19/07/2026

[CVE-2026-64076] In the Linux kernel, the following vulnerability has been resolved: netfilter: bridge: eb_tables: c…

In the Linux kernel, the following vulnerability has been resolved: netfilter: bridge: eb_tables: close module init race sashiko reports for unrelated patch: Does the core ebtables initialization in ebtables.c suffer from a similar race? Once nf_register_sockopt() completes, the sockopts are exposed globally. sockopt has to be registered last, just like in ip/ip6/arptables.

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

19/07/2026

[CVE-2026-64077] In the Linux kernel, the following vulnerability has been resolved: netfilter: ebtables: move to tw…

In the Linux kernel, the following vulnerability has been resolved: netfilter: ebtables: move to two-stage removal scheme Like previous patches for x_tables, follow same pattern in ebtables. We can't reuse xt helpers: ebt_table struct layout is incompatible. table->ops assignment is now done while still holding the ebt mutex to make sure we never expose partially-filled table struct.

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

19/07/2026

[CVE-2026-64078] In the Linux kernel, the following vulnerability has been resolved: netfilter: x_tables: add and us…

In the Linux kernel, the following vulnerability has been resolved: netfilter: x_tables: add and use xtables_unregister_table_exit Previous change added xtables_unregister_table_pre_exit to detach the table from the packetpath and to unlink it from the active table list. In case of rmmod, userspace that is doing set/getsockopt for this table will not be able to re-instantiate the table: 1. The …

nvdaltovulnerabilidad CVSS 7.8 NVD

M Crítico vulnerabilidad

19/07/2026

[CVE-2026-64080] In the Linux kernel, the following vulnerability has been resolved: firmware: arm_ffa: Snapshot not…

In the Linux kernel, the following vulnerability has been resolved: firmware: arm_ffa: Snapshot notifier callbacks under lock Both notification handlers currently look up a notifier callback under notify_lock, drop the lock, and then dereference the returned notifier entry. A concurrent unregister can delete and free that entry in the gap, leaving the handler to dereference stale memory. Copy t…

nvdcriticovulnerabilidad CVSS 9.3 NVD

M Alto vulnerabilidad

19/07/2026

[CVE-2026-64081] In the Linux kernel, the following vulnerability has been resolved: firmware: arm_ffa: Validate fra…

In the Linux kernel, the following vulnerability has been resolved: firmware: arm_ffa: Validate framework notification message layout Framework notifications carry an indirect message in the shared RX buffer. Validate the reported offset and size before using them, reject zero-length payloads, and ensure that any non-header payload starts at the UUID field rather than in the middle of the messag…

nvdaltovulnerabilidad CVSS 8.4 NVD

M Alto vulnerabilidad

19/07/2026

[CVE-2026-64082] In the Linux kernel, the following vulnerability has been resolved: riscv: Fix register corruption …

In the Linux kernel, the following vulnerability has been resolved: riscv: Fix register corruption from uninitialized cregs on error compat_riscv_gpr_set() calls cregs_to_regs() unconditionally, even when user_regset_copyin() fails. Since cregs is an uninitialized stack variable, a copyin failure causes uninitialized stack data to be written into the target task's pt_regs, corrupting its registe…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Crítico vulnerabilidad

19/07/2026

[CVE-2026-64066] In the Linux kernel, the following vulnerability has been resolved: netfs: Fix netfs_read_to_pageca…

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix netfs_read_to_pagecache() to pause on subreq failure Fix netfs_read_to_pagecache() so that it pauses the generation of new subrequests if an already-issued subrequest fails.

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Crítico vulnerabilidad

19/07/2026

[CVE-2026-64067] In the Linux kernel, the following vulnerability has been resolved: netfs: Fix missing barriers whe…

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix missing barriers when accessing stream->subrequests locklessly The list of subrequests attached to stream->subrequests is accessed without locks by netfs_collect_read_results() and netfs_collect_write_results(), and then they access subreq->flags without taking a barrier after getting the subreq pointer from the list.…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Crítico vulnerabilidad

19/07/2026

[CVE-2026-64068] In the Linux kernel, the following vulnerability has been resolved: netfs: Fix missing locking arou…

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix missing locking around retry adding new subreqs Fix netfs_retry_read_subrequests() and netfs_retry_write_stream() to take the appropriate lock when adding extra subrequests into stream->subrequests.

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Crítico vulnerabilidad

19/07/2026

[CVE-2026-64069] In the Linux kernel, the following vulnerability has been resolved: netfs: Fix cancellation of a DI…

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix cancellation of a DIO and single read subrequests When the preparation of a new subrequest for a read fails, if the subrequest has already been added to the stream->subrequests list, it can't simply be put and abandoned as the collector may see it. Also, if it hasn't been queued yet, it has two outstanding refs that …

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Alto vulnerabilidad

19/07/2026

[CVE-2026-64073] In the Linux kernel, the following vulnerability has been resolved: irq_work: Fix use-after-free in…

In the Linux kernel, the following vulnerability has been resolved: irq_work: Fix use-after-free in irq_work_single() on PREEMPT_RT On PREEMPT_RT, non-HARD irq_work runs in per-CPU kthreads via run_irq_workd(), so irq_work_sync() uses rcuwait() to wait for BUSY==0. After irq_work_single() clears BUSY via atomic_cmpxchg(), it still dereferences @work for irq_work_is_hard() and rcuwait_wake_up().…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Crítico vulnerabilidad

19/07/2026

[CVE-2026-64056] In the Linux kernel, the following vulnerability has been resolved: net: ethernet: cortina: Make RX…

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: cortina: Make RX SKB per-port The SKB used to assemble packets from fragments in gmac_rx() is static local, but the Gemini has two ethernet ports, meaning there can be races between the ports on a bad day if a device is using both. Make the RX SKB a per-port variable and carry it over between invocations in the p…

nvdcriticovulnerabilidad CVSS 9.8 NVD