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linux

20,203 known vulnerabilities.

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  • High 7.8

    futex: Prevent use-after-free during requeue-PI

    In the Linux kernel, the following vulnerability has been resolved: futex: Prevent use-after-free during requeue-PI syzbot managed to trigger the following race: T1 T2 futex_wait_requeue_pi() futex_do_wait() schedule() futex_requeue() futex_proxy_trylock_atom…

  • High 7.8

    octeontx2-pf: Fix potential use after free in otx2_tc_add_flow()

    In the Linux kernel, the following vulnerability has been resolved: octeontx2-pf: Fix potential use after free in otx2_tc_add_flow() This code calls kfree_rcu(new_node, rcu) and then dereferences "new_node" and then dereferences it on the next line. Two lines…

  • High 7.8

    futex: Use correct exit on failure from futex_hash_allocate_default()

    In the Linux kernel, the following vulnerability has been resolved: futex: Use correct exit on failure from futex_hash_allocate_default() copy_process() uses the wrong error exit path from futex_hash_allocate_default(). After exiting from futex_hash_allocate_…

  • High 8.8

    i40e: add validation for ring_len param

    In the Linux kernel, the following vulnerability has been resolved: i40e: add validation for ring_len param The `ring_len` parameter provided by the virtual function (VF) is assigned directly to the hardware memory context (HMC) without any validation. To add…

  • High 8.8

    i40e: fix idx validation in i40e_validate_queue_map

    In the Linux kernel, the following vulnerability has been resolved: i40e: fix idx validation in i40e_validate_queue_map Ensure idx is within range of active/initialized TCs when iterating over vf->ch[idx] in i40e_validate_queue_map().

  • High 8.8

    i40e: fix idx validation in config queues msg

    In the Linux kernel, the following vulnerability has been resolved: i40e: fix idx validation in config queues msg Ensure idx is within range of active/initialized TCs when iterating over vf->ch[idx] in i40e_vc_config_queues_msg().

  • High 8.8

    i40e: fix input validation logic for action_meta

    In the Linux kernel, the following vulnerability has been resolved: i40e: fix input validation logic for action_meta Fix condition to check 'greater or equal' to prevent OOB dereference.

  • High 8.8

    i40e: fix validation of VF state in get resources

    In the Linux kernel, the following vulnerability has been resolved: i40e: fix validation of VF state in get resources VF state I40E_VF_STATE_ACTIVE is not the only state in which VF is actually active so it should not be used to determine if a VF is allowed t…

  • High 7.3

    i40e: add max boundary check for VF filters

    In the Linux kernel, the following vulnerability has been resolved: i40e: add max boundary check for VF filters There is no check for max filters that VF can request. Add it.

  • High 7.8

    fbcon: fix integer overflow in fbcon_do_set_font

    In the Linux kernel, the following vulnerability has been resolved: fbcon: fix integer overflow in fbcon_do_set_font Fix integer overflow vulnerabilities in fbcon_do_set_font() where font size calculations could overflow when handling user-controlled font par…

  • High 7.8

    iommufd: Fix race during abort for file descriptors

    In the Linux kernel, the following vulnerability has been resolved: iommufd: Fix race during abort for file descriptors fput() doesn't actually call file_operations release() synchronously, it puts the file on a work queue and it will be released eventually. …

  • High 7.8
    CVE-2025-39965 Public exploit

    xfrm: xfrm_alloc_spi shouldn't use 0 as SPI

    In the Linux kernel, the following vulnerability has been resolved: xfrm: xfrm_alloc_spi shouldn't use 0 as SPI x->id.spi == 0 means "no SPI assigned", but since commit 94f39804d891 ("xfrm: Duplicate SPI Handling"), we now create states and add them to the by…

  • High 7.8
    CVE-2025-39964 Exploited Public exploit

    crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg

    In the Linux kernel, the following vulnerability has been resolved: crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg Issuing two writes to the same af_alg socket is bogus as the data will be interleaved in an unpredictable fashion. Furthermore, c…

    KEV Sep 18, 2026
  • High 7.8

    io_uring: fix incorrect io_kiocb reference in io_link_skb

    In the Linux kernel, the following vulnerability has been resolved: io_uring: fix incorrect io_kiocb reference in io_link_skb In io_link_skb function, there is a bug where prev_notif is incorrectly assigned using 'nd' instead of 'prev_nd'. This causes the con…

  • High 8.8

    iommu/amd/pgtbl: Fix possible race while increase page table level

    In the Linux kernel, the following vulnerability has been resolved: iommu/amd/pgtbl: Fix possible race while increase page table level The AMD IOMMU host page table implementation supports dynamic page table levels (up to 6 levels), starting with a 3-level co…

  • High 7.5

    rxrpc: Fix untrusted unsigned subtract

    In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix untrusted unsigned subtract Fix the following Smatch static checker warning: net/rxrpc/rxgk_app.c:65 rxgk_yfs_decode_ticket() warn: untrusted unsigned subtract. 'ticket_len - 10 * …

  • High 7.3

    gpiolib: acpi: initialize acpi_gpio_info struct

    In the Linux kernel, the following vulnerability has been resolved: gpiolib: acpi: initialize acpi_gpio_info struct Since commit 7c010d463372 ("gpiolib: acpi: Make sure we fill struct acpi_gpio_info"), uninitialized acpi_gpio_info struct are passed to __acpi_…

  • High 7.8

    igc: don't fail igc_probe() on LED setup error

    In the Linux kernel, the following vulnerability has been resolved: igc: don't fail igc_probe() on LED setup error When igc_led_setup() fails, igc_probe() fails and triggers kernel panic in free_netdev() since unregister_netdev() is not called. [1] This behav…

  • High 7.1

    wifi: mac80211: increase scan_ies_len for S1G

    In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: increase scan_ies_len for S1G Currently the S1G capability element is not taken into account for the scan_ies_len, which leads to a buffer length validation failure in ieee802…

  • High 7.8

    fs: hfsplus: remove WARN_ON() from hfsplus_cat_{read,write}_inode()

    In the Linux kernel, the following vulnerability has been resolved: fs: hfsplus: remove WARN_ON() from hfsplus_cat_{read,write}_inode() syzbot is hitting WARN_ON() in hfsplus_cat_{read,write}_inode(), for crafted filesystem image can contain bogus length. The…

  • High 7.5

    NFSD: Avoid calling OPDESC() with ops->opnum == OP_ILLEGAL

    In the Linux kernel, the following vulnerability has been resolved: NFSD: Avoid calling OPDESC() with ops->opnum == OP_ILLEGAL OPDESC() simply indexes into nfsd4_ops[] by the op's operation number, without range checking that value. It assumes callers are car…

  • High 8.3

    wifi: mt7601u: fix an integer underflow

    In the Linux kernel, the following vulnerability has been resolved: wifi: mt7601u: fix an integer underflow Fix an integer underflow that leads to a null pointer dereference in 'mt7601u_rx_skb_from_seg()'. The variable 'dma_len' in the URB packet could be man…

  • High 8.8

    scsi: ses: Fix possible desc_ptr out-of-bounds accesses

    In the Linux kernel, the following vulnerability has been resolved: scsi: ses: Fix possible desc_ptr out-of-bounds accesses Sanitize possible desc_ptr out-of-bounds accesses in ses_enclosure_data_process().

  • High 8.8

    scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show()

    In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show() The function lio_target_nacl_info_show() uses sprintf() in a loop to print details for every iSCSI connection in a sess…

  • High 7.8

    clk: Fix memory leak in devm_clk_notifier_register()

    In the Linux kernel, the following vulnerability has been resolved: clk: Fix memory leak in devm_clk_notifier_register() devm_clk_notifier_register() allocates a devres resource for clk notifier but didn't register that to the device, so the notifier didn't g…

  • High 8.8

    Bluetooth: hci_event: call disconnect callback before deleting conn

    In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: call disconnect callback before deleting conn In hci_cs_disconnect, we do hci_conn_del even if disconnection failed. ISO, L2CAP and SCO connections refer to the hci_conn…

  • High 7.8

    tcp: fix skb_copy_ubufs() vs BIG TCP

    In the Linux kernel, the following vulnerability has been resolved: tcp: fix skb_copy_ubufs() vs BIG TCP David Ahern reported crashes in skb_copy_ubufs() caused by TCP tx zerocopy using hugepages, and skb length bigger than ~68 KB. skb_copy_ubufs() assumed it…

  • High 7.8

    bpf, cpumap: Handle skb as well when clean up ptr_ring

    In the Linux kernel, the following vulnerability has been resolved: bpf, cpumap: Handle skb as well when clean up ptr_ring The following warning was reported when running xdp_redirect_cpu with both skb-mode and stress-mode enabled: ------------[ cut here ]---…

  • High 7.8

    iavf: Fix out-of-bounds when setting channels on remove

    In the Linux kernel, the following vulnerability has been resolved: iavf: Fix out-of-bounds when setting channels on remove If we set channels greater during iavf_remove(), and waiting reset done would be timeout, then returned with error but changed num_acti…

  • High 7.8

    tipc: fix a null-ptr-deref in tipc_topsrv_accept

    In the Linux kernel, the following vulnerability has been resolved: tipc: fix a null-ptr-deref in tipc_topsrv_accept syzbot found a crash in tipc_topsrv_accept: KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] Workqueue: tipc_rcv tipc_to…

  • High 7.8

    RDMA/rxe: Fix mr->map double free

    In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix mr->map double free rxe_mr_cleanup() which tries to free mr->map again will be called when rxe_mr_init_user() fails: CPU: 0 PID: 4917 Comm: rdma_flush_serv Kdump: loaded Not tai…

  • High 7.8

    bpf, sockmap: Fix repeated calls to sock_put() when msg has more_data

    In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix repeated calls to sock_put() when msg has more_data In tcp_bpf_send_verdict() redirection, the eval variable is assigned to __SK_REDIRECT after the apply_bytes data is sent,…

  • High 7.8

    Input: exc3000 - properly stop timer on shutdown

    In the Linux kernel, the following vulnerability has been resolved: Input: exc3000 - properly stop timer on shutdown We need to stop the timer on driver unbind or probe failures, otherwise we get UAF/Oops.

  • High 7.8

    drm/i915/perf: add sentinel to xehp_oa_b_counters

    In the Linux kernel, the following vulnerability has been resolved: drm/i915/perf: add sentinel to xehp_oa_b_counters Arrays passed to reg_in_range_table should end with empty record. The patch solves KASAN detected bug with signature: BUG: KASAN: global-out-…

  • High 7.8

    bpf: Make bpf_refcount_acquire fallible for non-owning refs

    In the Linux kernel, the following vulnerability has been resolved: bpf: Make bpf_refcount_acquire fallible for non-owning refs This patch fixes an incorrect assumption made in the original bpf_refcount series [0], specifically that the BPF program calling bp…

  • High 7.8

    nvme-tcp: don't access released socket during error recovery

    In the Linux kernel, the following vulnerability has been resolved: nvme-tcp: don't access released socket during error recovery While the error recovery work is temporarily failing reconnect attempts, running the 'nvme list' command causes a kernel NULL poin…

  • High 7.3

    ASoC: lpass: Fix for KASAN use_after_free out of bounds

    In the Linux kernel, the following vulnerability has been resolved: ASoC: lpass: Fix for KASAN use_after_free out of bounds When we run syzkaller we get below Out of Bounds error. "KASAN: slab-out-of-bounds Read in regcache_flat_read" Below is the backtrace o…

  • High 7.0

    octeon_ep: cancel queued works in probe error path

    In the Linux kernel, the following vulnerability has been resolved: octeon_ep: cancel queued works in probe error path If it fails to get the devices's MAC address, octep_probe exits while leaving the delayed work intr_poll_task queued. When the work later ru…

  • High 8.2

    netfilter: conntrack: fix wrong ct->timeout value

    In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: fix wrong ct->timeout value (struct nf_conn)->timeout is an interval before the conntrack confirmed. After confirmed, it becomes a timestamp. It is observed that timeout…

  • High 8.8

    iommufd: Fix unpinning of pages when an access is present

    In the Linux kernel, the following vulnerability has been resolved: iommufd: Fix unpinning of pages when an access is present syzkaller found that the calculation of batch_last_index should use 'start_index' since at input to this function the batch is either…