Alertas de Seguridad de la Información

L Alto vulnerabilidad

24/06/2026

[CVE-2026-53026] In the Linux kernel, the following vulnerability has been resolved: NFSD: fix nfs4_file access extr…

In the Linux kernel, the following vulnerability has been resolved: NFSD: fix nfs4_file access extra count in nfsd4_add_rdaccess_to_wrdeleg In nfsd4_add_rdaccess_to_wrdeleg, if fp->fi_fds[O_RDONLY] is already set by another thread, __nfs4_file_get_access should not be called to increment the nfs4_file access count since that was already done by the thread that added READ access to the file. The …

nvdaltovulnerabilidad CVSS 7.5 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-53011] In the Linux kernel, the following vulnerability has been resolved: net/sched: taprio: fix use-afte…

In the Linux kernel, the following vulnerability has been resolved: net/sched: taprio: fix use-after-free in advance_sched() on schedule switch In advance_sched(), when should_change_schedules() returns true, switch_schedules() is called to promote the admin schedule to oper. switch_schedules() queues the old oper schedule for RCU freeing via call_rcu(), but 'next' still points into an entry of …

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-53016] In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - copy IV using skc…

In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - copy IV using skcipher ivsize AF_ALG rfc3686-ctr-aes-ccp requests pass an 8-byte IV to the driver. ccp_aes_complete() restores AES_BLOCK_SIZE bytes into the caller's IV buffer while RFC3686 skciphers expose an 8-byte IV, so the restore overruns the provided buffer. Use crypto_skcipher_ivsize() to copy only the al…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-53003] In the Linux kernel, the following vulnerability has been resolved: pppoe: drop PFC frames RFC 251…

In the Linux kernel, the following vulnerability has been resolved: pppoe: drop PFC frames RFC 2516 Section 7 states that Protocol Field Compression (PFC) is NOT RECOMMENDED for PPPoE. In practice, pppd does not support negotiating PFC for PPPoE sessions, and the current PPPoE driver assumes an uncompressed (2-byte) protocol field. However, the generic PPP layer function ppp_input() is not aware…

nvdaltovulnerabilidad CVSS 7.5 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-53004] In the Linux kernel, the following vulnerability has been resolved: sctp: fix OOB write to userspac…

In the Linux kernel, the following vulnerability has been resolved: sctp: fix OOB write to userspace in sctp_getsockopt_peer_auth_chunks sctp_getsockopt_peer_auth_chunks() checks that the caller's optval buffer is large enough for the peer AUTH chunk list with if (len < num_chunks) return -EINVAL; but then writes num_chunks bytes to p->gauth_chunks, which lives at offset offset…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-53005] In the Linux kernel, the following vulnerability has been resolved: af_unix: Drop all SCM attribute…

In the Linux kernel, the following vulnerability has been resolved: af_unix: Drop all SCM attributes for SOCKMAP. SOCKMAP can hide inflight fd from AF_UNIX GC. When a socket in SOCKMAP receives skb with inflight fd, sk_psock_verdict_data_ready() looks up the mapped socket and enqueue skb to its psock->ingress_skb. Since neither the old nor the new GC can inspect the psock queue, the hidden skb…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-52992] In the Linux kernel, the following vulnerability has been resolved: fs/adfs: validate nzones in adf…

In the Linux kernel, the following vulnerability has been resolved: fs/adfs: validate nzones in adfs_validate_bblk() Reject ADFS disc records with a zero zone count during boot block validation, before the disc record is used. When nzones is 0, adfs_read_map() passes it to kmalloc_array(0, ...) which returns ZERO_SIZE_PTR, and adfs_map_layout() then writes to dm[-1], causing an out-of-bounds wr…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-52998] In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_osf: fix p…

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_osf: fix potential NULL dereference in ttl check The nf_osf_ttl() function accessed skb->dev to perform a local interface address lookup without verifying that the device pointer was valid. Additionally, the implementation utilized an in_dev_for_each_ifa_rcu loop to match the packet source address against l…

nvdaltovulnerabilidad CVSS 7.5 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-52983] In the Linux kernel, the following vulnerability has been resolved: net: airoha: fix BQL imbalance …

In the Linux kernel, the following vulnerability has been resolved: net: airoha: fix BQL imbalance in TX path Fix a possible BQL imbalance in airoha_dev_xmit(), where inflight packets are accounted only for the AIROHA_NUM_TX_RING netdev TX queues. The queue index is computed as: qid = skb_get_queue_mapping(skb) % ARRAY_SIZE(qdma->q_tx) txq = netdev_get_tx_queue(dev, qid); However, airo…

nvdaltovulnerabilidad CVSS 7.5 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-52987] In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: avoid double drm_ex…

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: avoid double drm_exec_fini() in userq validate When new_addition is true, amdgpu_userq_vm_validate() calls drm_exec_fini(&exec) before iterating over the collected HMM ranges and calling amdgpu_ttm_tt_get_user_pages(). If amdgpu_ttm_tt_get_user_pages() fails in that path, the code jumps to unlock_all and calls drm_e…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-52988] In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: join hook…

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: join hook list via splice_list_rcu() in commit phase Publish new hooks in the list into the basechain/flowtable using splice_list_rcu() to ensure netlink dump list traversal via rcu is safe while concurrent ruleset update is going on.

nvdaltovulnerabilidad CVSS 7.1 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-52991] In the Linux kernel, the following vulnerability has been resolved: sched/psi: fix race between fil…

In the Linux kernel, the following vulnerability has been resolved: sched/psi: fix race between file release and pressure write A potential race condition exists between pressure write and cgroup file release regarding the priv member of struct kernfs_open_file, which triggers the uaf reported in [1]. Consider the following scenario involving execution on two separate CPUs: CPU0 CPU1 …

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-52975] In the Linux kernel, the following vulnerability has been resolved: bonding: 3ad: implement proper …

In the Linux kernel, the following vulnerability has been resolved: bonding: 3ad: implement proper RCU rules for port->aggregator syzbot found a data-race in bond_3ad_get_active_agg_info / bond_3ad_state_machine_handler [1] which hints at lack of proper RCU implementation. Add __rcu qualifier to port->aggregator, and add proper RCU API. [1] BUG: KCSAN: data-race in bond_3ad_get_active_agg_inf…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-52976] In the Linux kernel, the following vulnerability has been resolved: drm/xe: Fix error cleanup in xe…

In the Linux kernel, the following vulnerability has been resolved: drm/xe: Fix error cleanup in xe_exec_queue_create_ioctl() Two error handling issues exist in xe_exec_queue_create_ioctl(): 1. When xe_hw_engine_group_add_exec_queue() fails, the error path jumps to put_exec_queue which skips xe_exec_queue_kill(). If the VM is in preempt fence mode, xe_vm_add_compute_exec_queue() has alrea…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-52981] In the Linux kernel, the following vulnerability has been resolved: neigh: let neigh_xmit take skb …

In the Linux kernel, the following vulnerability has been resolved: neigh: let neigh_xmit take skb ownership neigh_xmit always releases the skb, except when no neighbour table is found. But even the first added user of neigh_xmit (mpls) relied on neigh_xmit to release the skb (or queue it for tx). sashiko reported: If neigh_xmit() is called with an uninitialized neighbor table (for example, N…

nvdaltovulnerabilidad CVSS 7.5 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-52967] In the Linux kernel, the following vulnerability has been resolved: smb/client: fix possible infini…

In the Linux kernel, the following vulnerability has been resolved: smb/client: fix possible infinite loop and oob read in symlink_data() On 32-bit architectures, the infinite loop is as follows: len = p->ErrorDataLength == 0xfffffff8 u8 *next = p->ErrorContextData + len next == p On 32-bit architectures, the out-of-bounds read is as follows: len = p->ErrorDataLength == 0xfffffff0 u…

nvdaltovulnerabilidad CVSS 8.1 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-52968] In the Linux kernel, the following vulnerability has been resolved: KVM: s390: pci: fix GAIT table …

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: pci: fix GAIT table indexing due to double-scaling pointer arithmetic kvm_s390_pci_aif_enable(), kvm_s390_pci_aif_disable(), and aen_host_forward() index the GAIT by manually multiplying the index with sizeof(struct zpci_gaite). Since aift->gait is already a struct zpci_gaite pointer, this double-scales the offset, a…

nvdaltovulnerabilidad CVSS 8.8 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-52969] In the Linux kernel, the following vulnerability has been resolved: KVM: Reject wrapped offset in k…

In the Linux kernel, the following vulnerability has been resolved: KVM: Reject wrapped offset in kvm_reset_dirty_gfn() kvm_reset_dirty_gfn() guards the gfn range with if (!memslot || (offset + __fls(mask)) >= memslot->npages) return; but offset is u64 and the addition is unchecked. The check can be silently bypassed by a u64 wrap. The dirty ring backing those entries is MAP_SHARED at KVM…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-52971] In the Linux kernel, the following vulnerability has been resolved: net: ena: PHC: Fix potential us…

In the Linux kernel, the following vulnerability has been resolved: net: ena: PHC: Fix potential use-after-free in get_timestamp Move the phc->active check and resp pointer assignment to after acquiring the spinlock. Previously, phc->active was checked without holding the lock, and resp was cached from ena_dev->phc.virt_addr before the lock was acquired. If ena_com_phc_destroy() runs between th…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-52973] In the Linux kernel, the following vulnerability has been resolved: futex: Drop CLONE_THREAD requir…

In the Linux kernel, the following vulnerability has been resolved: futex: Drop CLONE_THREAD requirement for private default hash alloc Currently need_futex_hash_allocate_default() depends on strict pthread semantics, abusing CLONE_THREAD. This breaks the non-concurrency assumptions when doing the mm->futex_ref pcpu allocations, leading to bugs[0] when sharing the mm in other ways; ie: BUG…

nvdaltovulnerabilidad CVSS 7.8 NVD