p PatchFirst

PatchFirst · Vulnerabilidades recientes

Vulnerabilidades de linux-oracle-6.8 · Página 176

Vulnerabilidades publicadas para linux-oracle-6.8 en los últimos 30 días: 794. Incluidas en el catálogo KEV: 0.

RSS ↗ JSON ↗
Filtrar vulnerabilidades
Borrar filtros

Vulnerabilidades: 10028

  1. CVE-2026-64570

    Alta · CVSS 7.8EPSS 0,18%Sin corrección publicada

    wifi: mac80211: fix fils_discovery double free on alloc failure

    In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix fils_discovery double free on alloc failure ieee80211_set_fils_discovery() calls kfree_rcu() on the old template before allocating the replacement. If the kzalloc() then fails, it returns -ENOMEM while link->u.ap.fils_discovery still points at the object already queued for freeing. A later update or AP teardown (ieee80211_stop_ap()) re-queues that same rcu_head; the second free is caught by KASAN when the RCU sheaf is processed in softirq: BUG: KASAN: double-free in rcu_free_sheaf (mm/slub.c:5850) Free of addr ffff88800c065280 by task swapper/0/0

    linux-oracle-6.8Sistemas operativos
    Publicación Actualización
    Aviso original 1 ↗Aviso original 2 ↗Aviso original 3 ↗

  2. CVE-2026-64569

    Sin evaluarEPSS 0,17%Sin corrección publicada

    mpls: fix NULL deref in mpls_valid_fib_dump_req() on CONFIG_INET=n

    In the Linux kernel, the following vulnerability has been resolved: mpls: fix NULL deref in mpls_valid_fib_dump_req() on CONFIG_INET=n On CONFIG_INET=n builds, mpls_valid_fib_dump_req() walks the parsed attribute table itself instead of calling ip_valid_fib_dump_req(). The RTA_OIF arm passes tb[RTA_OIF] to nla_get_u32() without checking it is present, so an RTM_GETROUTE dump for AF_MPLS with strict checking and no RTA_OIF hits a NULL dereference. RTM_GETROUTE is RTNL_KIND_GET, which rtnetlink_rcv_msg() permits without CAP_NET_ADMIN, so an unprivileged user can trigger it. Oops: general protection fault, probably for non-canonical addres

    linux-oracle-6.8Sistemas operativos
    Publicación Actualización
    Aviso original 1 ↗Aviso original 2 ↗Aviso original 3 ↗

  3. CVE-2026-64568

    Alta · CVSS 7.8EPSS 0,12%Sin corrección publicada

    wifi: mac80211: fix unsol_bcast_probe_resp double free on alloc failure

    In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix unsol_bcast_probe_resp double free on alloc failure ieee80211_set_unsol_bcast_probe_resp() calls kfree_rcu() on the old template before allocating the replacement. If the kzalloc() then fails, it returns -ENOMEM while link->u.ap.unsol_bcast_probe_resp still points at the object already queued for freeing. A later update or AP teardown re-queues that same rcu_head; the second free is caught by KASAN when the RCU sheaf is processed in softirq: BUG: KASAN: double-free in rcu_free_sheaf (mm/slub.c:5850) Free of addr ffff88800d06f300 by task exploit/145

    linux-oracle-6.8Sistemas operativos
    Publicación Actualización
    Aviso original 1 ↗Aviso original 2 ↗Aviso original 3 ↗

  4. CVE-2026-64567

    Alta · CVSS 7.8EPSS 0,12%Sin corrección publicada

    btrfs: reject free space cache with more entries than pages

    In the Linux kernel, the following vulnerability has been resolved: btrfs: reject free space cache with more entries than pages When loading a v1 free space cache, __load_free_space_cache() takes num_entries and num_bitmaps straight from the on-disk btrfs_free_space_header. That header is stored in the tree_root under a key with type 0, which the tree-checker has no case for, so neither count is validated before the load trusts it. The load loops num_entries times and maps the next page whenever the current one runs out, going through io_ctl_check_crc() -> io_ctl_map_page(), which does io_ctl->pages[io_ctl->index++]. But pages[] is allocat

    linux-oracle-6.8Sistemas operativos
    Publicación Actualización
    Aviso original 1 ↗Aviso original 2 ↗Aviso original 3 ↗

  5. CVE-2026-64565

    Sin evaluarEPSS 0,18%Sin corrección publicada

    Input: ims-pcu - fix heap-buffer-overflow in ims_pcu_process_data()

    In the Linux kernel, the following vulnerability has been resolved: Input: ims-pcu - fix heap-buffer-overflow in ims_pcu_process_data() The `ims_pcu_process_data()` processes incoming URB data byte by byte. However, it fails to check if the `read_pos` index exceeds IMS_PCU_BUF_SIZE. If a malicious USB device sends a packet larger than IMS_PCU_BUF_SIZE, `read_pos` will increment indefinitely. Moreover, since `read_pos` is located immediately after `read_buf`, the attacker can overwrite `read_pos` itself to arbitrarily control the index. This manipulated `read_pos` is subsequently used in `ims_pcu_handle_response()` to copy data into `cmd_b

    linux-oracle-6.8Sistemas operativos
    Publicación Actualización
    Aviso original 1 ↗Aviso original 2 ↗Aviso original 3 ↗

  6. CVE-2026-64564

    Crítica · CVSS 9.8EPSS 1,43%Código de explotación públicoSin corrección publicada

    sctp: don't free the ASCONF's own transport in DEL-IP processing

    In the Linux kernel, the following vulnerability has been resolved: sctp: don't free the ASCONF's own transport in DEL-IP processing sctp_process_asconf() caches the transport the ASCONF chunk is processed against in asconf->transport (== chunk->transport, set once in sctp_rcv()). For an ASCONF located through its Address Parameter by __sctp_rcv_asconf_lookup(), that cached transport corresponds to the Address Parameter, which need not be the packet's source address. sctp_process_asconf_param() rejects a DEL-IP for the packet source address (ADDIP D8, SCTP_ERROR_DEL_SRC_IP), but nothing protects asconf->transport. A single ASCONF can there

    linux-oracle-6.8Sistemas operativos
    Publicación Actualización
    Aviso original 1 ↗Aviso original 2 ↗Aviso original 3 ↗

  7. CVE-2026-64563

    Alta · CVSS 7.8EPSS 0,17%Sin corrección publicada

    rhashtable: clear stale iter->p on table restart

    In the Linux kernel, the following vulnerability has been resolved: rhashtable: clear stale iter->p on table restart rhashtable_walk_start_check() has two restart paths when resuming a walk. When iter->walker.tbl is valid, it re-validates iter->p against the table and sets iter->p = NULL if the object is gone. When iter->walker.tbl is NULL (table was freed during resize), it resets slot and skip but forgets to clear iter->p. rhashtable_walk_next() then dereferences the stale iter->p, reading freed memory. This is a use-after-free. Any caller that does multi-fragment rhashtable walks across walk_stop/walk_start boundaries is affected. C

    linux-oracle-6.8Sistemas operativos
    Publicación Actualización
    Aviso original 1 ↗Aviso original 2 ↗Aviso original 3 ↗

  8. CVE-2026-64562

    Alta · CVSS 8.8EPSS 0,16%Sin corrección publicada

    KVM: nVMX: Hide shadow VMCS right after VMCLEAR

    In the Linux kernel, the following vulnerability has been resolved: KVM: nVMX: Hide shadow VMCS right after VMCLEAR free_nested() frees the shadow VMCS while vmcs01 still points to it. But because it is asynchronous with respect to loaded_vmcs_clear(), the vCPU might migrate before the pointer is cleared and __loaded_vmcs_clear() may then execute VMCLEAR. The VMCS needs to stay attached until its explicit VMCLEAR completes, but then it can be hidden and the page safely freed.

    linux-oracle-6.8Sistemas operativos
    Publicación Actualización
    Aviso original 1 ↗Aviso original 2 ↗Aviso original 3 ↗

  9. CVE-2026-64561

    Alta · CVSS 8.8EPSS 0,27%Código de explotación públicoSin corrección publicada

    KVM: x86: Check for invalid/obsolete root *after* making MMU pages available

    In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Check for invalid/obsolete root *after* making MMU pages available Check for a "stale" page fault, i.e. for an invalid and/or obsolete root, after making MMU pages available for the shadow MMU. If reclaiming shadow pages zaps an in-use root, i.e. marks it invalid, then KVM will attempt to map memory into an invalid root. On its own, populating an invalid root is "fine", but because child shadow pages inherit their parent's role, any children created during the map/fetch will be created as invalid pages, thus violating KVM's invariant that invalid pages are never

    linux-oracle-6.8Sistemas operativos
    Publicación Actualización
    Aviso original 1 ↗Aviso original 2 ↗Aviso original 3 ↗

  10. CVE-2026-64560

    Alta · CVSS 7.8EPSS 0,5%Código de explotación públicoSin corrección publicada

    posix-cpu-timers: Prevent UAF caused by non-leader exec() race

    In the Linux kernel, the following vulnerability has been resolved: posix-cpu-timers: Prevent UAF caused by non-leader exec() race Wongi and Jungwoo decoded and reported a non-leader exec() related race which can result in an UAF: sys_timer_delete() exec() posix_cpu_timer_del() // Observes old leader p = pid_task(pid, pid_type); de_thread() switch_leader(); release_task(old_leader) __exit_signal(old_leader) sighand = lock(old_leader, sighand); posix_cpu_timers*_exit(); sighand = lock_task_sighand(p) unhash_task(old_leader); sh = lock(p, sighand) old_leade

    linux-oracle-6.8Sistemas operativos
    Publicación Actualización
    Aviso original 1 ↗Aviso original 2 ↗Aviso original 3 ↗

  11. CVE-2026-64557

    Alta · CVSS 8.8EPSS 0,29%Sin corrección publicada

    Bluetooth: L2CAP: Fix use-after-free in l2cap_sock_new_connection_cb()

    In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix use-after-free in l2cap_sock_new_connection_cb() l2cap_sock_new_connection_cb() returned l2cap_pi(sk)->chan after release_sock(parent). Once the parent lock is dropped the newly enqueued child socket sk is reachable via the accept queue, so another task can accept and free it before the callback dereferences sk, resulting in a use-after-free. Rework the ->new_connection() op so the core, rather than the callback, owns the child channel's lifetime. The op now receives a pre-allocated new_chan and returns an errno instead of allocating and returning a c

    linux-oracle-6.8Sistemas operativos
    Publicación Actualización
    Aviso original 1 ↗Aviso original 2 ↗Aviso original 3 ↗

  12. CVE-2026-64556

    Alta · CVSS 7.8EPSS 0,16%Sin corrección publicada

    perf/core: Detach event groups during remove_on_exec

    In the Linux kernel, the following vulnerability has been resolved: perf/core: Detach event groups during remove_on_exec perf_event_remove_on_exec() removes events by calling perf_event_exit_event(). For top-level events, this removes the event from the context with DETACH_EXIT only. This can leave inconsistent group state when a removed event is a group leader and the group contains siblings without remove_on_exec. If the group was active, the surviving siblings can remain active and attached to the removed leader's sibling list, but are no longer represented by a valid group leader on the PMU context active lists. A later close of the r

    linux-oracle-6.8Sistemas operativos
    Publicación Actualización
    Aviso original 1 ↗Aviso original 2 ↗Aviso original 3 ↗

  13. CVE-2026-64555

    Alta · CVSS 8.8EPSS 0,13%Sin corrección publicada

    KVM: arm64: nv: Fix SPSR_EL2 restore in kvm_hyp_handle_mops()

    In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Fix SPSR_EL2 restore in kvm_hyp_handle_mops() kvm_hyp_handle_mops() resets the single-step state machine as part of rewinding state for a MOPS exception by modifying vcpu_cpsr() and writing the result directly into hardware. In the case of nested virtualization, vcpu_cpsr() is a synthetic value such that the rest of KVM can deal with vEL2 cleanly. That means the value requires translation before being written into hardware, which is unfortunately missing from the MOPS handler. Fix it by directly modifying SPSR_EL2 and avoiding the synthetic state altogethe

    linux-oracle-6.8Sistemas operativos
    Publicación Actualización
    Aviso original 1 ↗Aviso original 2 ↗Aviso original 3 ↗

  14. CVE-2026-64554

    Alta · CVSS 8.8EPSS 0,26%Sin corrección publicada

    netfilter: bridge: fix stale prevhdr pointer in br_ip6_fragment()

    In the Linux kernel, the following vulnerability has been resolved: netfilter: bridge: fix stale prevhdr pointer in br_ip6_fragment() br_ip6_fragment() gets prevhdr, a pointer into the skb head, from ip6_find_1stfragopt(), then calls skb_checksum_help(). For a cloned skb skb_checksum_help() reallocates the head via pskb_expand_head(), leaving prevhdr dangling. It is later dereferenced in ip6_frag_next(), causing a use-after-free write. Save prevhdr's offset before skb_checksum_help() and recompute it after, like commit ef0efcd3bd3f ("ipv6: Fix dangling pointer when ipv6 fragment"). BUG: KASAN: slab-use-after-free in ip6_frag_next (net

    linux-oracle-6.8Sistemas operativos
    Publicación Actualización
    Aviso original 1 ↗Aviso original 2 ↗Aviso original 3 ↗

  15. CVE-2026-64553

    Sin evaluarEPSS 0,18%Sin corrección publicada

    net: psample: fix info leak in PSAMPLE_ATTR_DATA

    In the Linux kernel, the following vulnerability has been resolved: net: psample: fix info leak in PSAMPLE_ATTR_DATA psample open codes nla_put() presumably to avoid wiping the data with 0s just to override it with packet data. This open coding is missing clearing the pad, however, each netlink attr is padded to 4B and data_len may not be divisible by 4B.

    linux-oracle-6.8Sistemas operativos
    Publicación Actualización
    Aviso original 1 ↗Aviso original 2 ↗Aviso original 3 ↗

  16. CVE-2026-64552

    Alta · CVSS 8.4EPSS 0,14%Sin corrección publicada

    virtio-net: fix len check in receive_big()

    In the Linux kernel, the following vulnerability has been resolved: virtio-net: fix len check in receive_big() receive_big() bounds the device-announced length by (big_packets_num_skbfrags + 1) * PAGE_SIZE. That is still too loose: add_recvbuf_big() sets sg[1] to start at offset sizeof(struct padded_vnet_hdr) into the first page, so the chain actually carries hdr_len + (PAGE_SIZE - sizeof(padded_vnet_hdr)) + big_packets_num_skbfrags * PAGE_SIZE bytes -- 20 bytes less than the check allows for the common hdr_len == 12 case. A malicious virtio backend can announce a len in that gap. page_to_skb() then walks one frag past the page chain, st

    linux-oracle-6.8Sistemas operativos
    Publicación Actualización
    Aviso original 1 ↗Aviso original 2 ↗Aviso original 3 ↗

  17. CVE-2026-64551

    Crítica · CVSS 9.1EPSS 0,51%Sin corrección publicada

    sctp: validate STALE_COOKIE cause length before reading staleness

    In the Linux kernel, the following vulnerability has been resolved: sctp: validate STALE_COOKIE cause length before reading staleness When an ERROR chunk with a STALE_COOKIE cause is received in the COOKIE_ECHOED state, sctp_sf_do_5_2_6_stale() reads the 4-byte Measure of Staleness that follows the cause header: err = (struct sctp_errhdr *)(chunk->skb->data); stale = ntohl(*(__be32 *)((u8 *)err + sizeof(*err))); err is the first cause in the chunk, not the STALE_COOKIE cause that caused the dispatch, and nothing guarantees the staleness field is present. sctp_walk_errors() only requires a cause to be as long as the 4-byte header, so f

    linux-oracle-6.8Sistemas operativos
    Publicación Actualización
    Aviso original 1 ↗Aviso original 2 ↗Aviso original 3 ↗

  18. CVE-2026-64550

    Alta · CVSS 7.3EPSS 0,13%Sin corrección publicada

    net: qualcomm: rmnet: validate MAP frame length before ingress parsing

    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 header and csum header/trailer based on the on-wire pkt_len without checking skb->len, so a short frame is read out of bounds: BUG: KASAN: slab-out-of-bounds in rmnet_map_checksum_downlink_packet Read of size 1 at addr ffff88801118ed00 by task expl

    linux-oracle-6.8Sistemas operativos
    Publicación Actualización
    Aviso original 1 ↗Aviso original 2 ↗Aviso original 3 ↗

  19. CVE-2026-64549

    Sin evaluarEPSS 0,18%Sin corrección publicada

    Bluetooth: bpa10x: avoid OOB read of revision string in bpa10x_setup()

    In the Linux kernel, the following vulnerability has been resolved: Bluetooth: bpa10x: avoid OOB read of revision string in bpa10x_setup() bpa10x_setup() sends the vendor command 0xfc0e and passes the response to bt_dev_info() and hci_set_fw_info() as a "%s" string starting at skb->data + 1, without checking the length: bt_dev_info(hdev, "%s", (char *)(skb->data + 1)); hci_set_fw_info(hdev, "%s", skb->data + 1); A device that returns a one-byte response (status only) leaves skb->data + 1 past the end of the data, and the %s walk reads adjacent slab memory until it meets a NUL. The same happens when the payload is not NUL-terminated with

    linux-oracle-6.8Sistemas operativos
    Publicación Actualización
    Aviso original 1 ↗Aviso original 2 ↗Aviso original 3 ↗

  20. CVE-2026-64548

    Alta · CVSS 8.4EPSS 0,14%Sin corrección publicada

    bpf, sockmap: reject overflowing copy + len in bpf_msg_push_data()

    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 small value, causing an undersized allocation followed by an out-of-bounds memcpy. BUG: unable to handle page fault for address: ffffed104089a402 Oops: Oops: 0000 [#1] SMP KASAN NOPTI Call Trace: __asan_memcpy (mm/kasan/shadow.c:105) bpf_msg_pu

    linux-oracle-6.8Sistemas operativos
    Publicación Actualización
    Aviso original 1 ↗Aviso original 2 ↗Aviso original 3 ↗

Comprueba tu servidor

Compara tu pila y las versiones instaladas con las bases actuales de vulnerabilidades.

Comprueba tu servidor →