In the Linux kernel, the following vulnerability has been resolved: net: annotate races around sk->sk_bound_dev_if UDP sendmsg() is lockless, and reads sk->sk_bound_dev_if while this field can be changed by another thread. Adds minimal annotations to avoid KCSAN splats for UDP. Following patches will add more annotations to potential lockless readers. BUG: KCSAN: data-race in __ip6_datagram_connect / udpv6_sendmsg write to 0xffff888136d47a94 of 4 bytes by task 7681 on cpu 0: __ip6_datagram_connect+0x6e2/0x930 net/ipv6/datagram.c:221 ip6_datagram_connect+0x2a/0x40 net/ipv6/datagram.c:272 inet_dgram_connect+0x107/0x190 net/ipv4/af_inet.c:576 __sys_connect_file net/socket.c:1900 [inline] __sys_connect+0x197/0x1b0 net/socket.c:1917 __do_sys_connect net/socket.c:1927 [inline] __se_sys_connect net/socket.c:1924 [inline] __x64_sys_connect+0x3d/0x50 net/socket.c:1924 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x50 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff888136d47a94 of 4 bytes by task 7670 on cpu 1: udpv6_sendmsg+0xc60/0x16e0 net/ipv6/udp.c:1436 inet6_sendmsg+0x5f/0x80 net/ipv6/af_inet6.c:652 sock_sendmsg_nosec net/socket.c:705 [inline] sock_sendmsg net/socket.c:725 [inline] ____sys_sendmsg+0x39a/0x510 net/socket.c:2413 ___sys_sendmsg net/socket.c:2467 [inline] __sys_sendmmsg+0x267/0x4c0 net/socket.c:2553 __do_sys_sendmmsg net/socket.c:2582 [inline] __se_sys_sendmmsg net/socket.c:2579 [inline] __x64_sys_sendmmsg+0x53/0x60 net/socket.c:2579 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x50 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0x00000000 -> 0xffffff9b Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 7670 Comm: syz-executor.3 Tainted: G W 5.18.0-rc1-syzkaller-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 I chose to not add Fixes: tag because race has minor consequences and stable teams busy enough.

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

    RDMA/core: Silence oversized kvmalloc() warning(CVE-2025-37867)

    igb: revert rtnl_lock() that causes deadlock(CVE-2023-53060)

    bnxt_en: Avoid order-5 memory allocation for TPA data(CVE-2023-53134)

    net_sched: sch_sfq: move the limit validation(CVE-2025-37752)

    ftrace: Add cond_resched() to ftrace_graph_set_hash().(CVE-2025-37940)

    net: annotate races around sk-sk_bound_dev_if(CVE-2022-49420)

    ext4: fix off-by-one error in do_split(CVE-2025-23150)

    jbd2: remove wrong sb-s_sequence check(CVE-2025-37839)

    ext4: update s_journal_inum if it changes after journal replay(CVE-2023-53091)

    udp: Fix memory accounting leak.(CVE-2025-22058)

    netem: Update sch-q.qlen before qdisc_tree_reduce_backlog().(CVE-2025-21703)

    net: fix memory leak in tcp_conn_request().(CVE-2024-57841)

    xfrm: state: fix out-of-bounds read during lookup(CVE-2024-57982)

    Insufficient control flow management for the Intel(R) 82599 Ethernet Controllers and Adapters may allow an     authenticated user to potentially enable denial of service via local access.(CVE-2021-33061)

    udf: Fix a slab-out-of-bounds write bug in udf_find_entry().(CVE-2022-49846)

    nvmet: avoid potential UAF in nvmet_req_complete().(CVE-2023-53116)

    ata: libata-transport: fix error handling in ata_tport_add().(CVE-2022-49825)

    ata: libata-transport: fix double ata_host_put() in ata_tport_add().(CVE-2022-49826)

    bpf: track changes_pkt_data property for global functions(CVE-2024-58098)

    pinctrl: devicetree: fix null pointer dereferencing in pinctrl_dt_to_map(CVE-2022-49832)

    scsi: core: Fix a procfs host directory removal regression(CVE-2023-53118)

    bpf, verifier: Fix memory leak in array reallocation for stack state(CVE-2022-49878)

    kprobes: Skip clearing aggrprobe's post_handler in kprobe-on-ftrace case(CVE-2022-49779)

    i2c: piix4: Fix adapter not be removed in piix4_remove().(CVE-2022-49900)

    bpf: Fix kmemleak warning for percpu hashmap(CVE-2025-37807)

    drm: Fix potential null-ptr-deref in drm_vblank_destroy_worker().(CVE-2022-49827)

    RDMA/core: Fix null-ptr-deref in ib_core_cleanup().(CVE-2022-49925)

    net: tun: Fix memory leaks of napi_get_frags(CVE-2022-49871)

    net: sched: Fix use after free in red_enqueue().(CVE-2022-49921)

    bnxt_en: Fix possible crash in bnxt_hwrm_set_coal().(CVE-2022-49869)

    tipc: fix the msg-req tlv len check in tipc_nl_compat_name_table_dump_header(CVE-2022-49862)

    bpf, test_run: Fix alignment problem in bpf_prog_test_run_skb().(CVE-2022-49840)

    net: macvlan: fix memory leaks of macvlan_common_newlink(CVE-2022-49853)

    HID: hyperv: fix possible memory leak in mousevsc_probe().(CVE-2022-49874)

    bpftool: Fix NULL pointer dereference when pin {PROG, MAP, LINK} without FILE(CVE-2022-49875)

    ftrace: Fix null pointer dereference in ftrace_add_mod().(CVE-2022-49802)

    tracing: Do not let histogram values have some modifiers(CVE-2023-53093)

    ftrace: Fix invalid address access in lookup_rec() when index is 0(CVE-2023-53075)

    iavf: Fix handling of dummy receive descriptors(CVE-2022-49583)

    ftrace: Fix use-after-free for dynamic ftrace_ops(CVE-2022-49892)

    fscrypt: stop using keyrings subsystem for fscrypt_master_key(CVE-2022-49899)

    bpf: Fix wrong reg type conversion in release_reference().(CVE-2022-49873)

    capabilities: fix potential memleak on error path from vfs_getxattr_alloc().(CVE-2022-49890)

    nfs4: Fix kmemleak when allocate slot failed(CVE-2022-49927)

    scsi: scsi_transport_sas: Fix error handling in sas_phy_add().(CVE-2022-49839)

    ACPI: APEI: Fix integer overflow in ghes_estatus_pool_init().(CVE-2022-49885)

    blk-mq: Fix kmemleak in blk_mq_init_allocated_queue(CVE-2022-49901)

    bpf: Fix memory leaks in __check_func_call(CVE-2022-49837)

    ext4: ignore xattrs past end(CVE-2025-37738)

    ext4: fix another off-by-one fsmap error on 1k block filesystems(CVE-2023-53143)

    ext4: fix WARNING in ext4_update_inline_data(CVE-2023-53100)

    ext4: Fix possible corruption when moving a directory(CVE-2023-53137)

    ext4: zero i_disksize when initializing the bootloader inode(CVE-2023-53101)

    ata: libata-transport: fix error handling in ata_tdev_add().(CVE-2022-49823)

    ext4: fix BUG_ON() when directory entry has invalid rec_len(CVE-2022-49879)

    ext4: fix task hung in ext4_xattr_delete_inode(CVE-2023-53089)

    scsi: target: tcm_loop: Fix possible name leak in tcm_loop_setup_hba_bus().(CVE-2022-49780)

    ext4: fix warning in 'ext4_da_release_space'(CVE-2022-49880)

    ring-buffer: Check for NULL cpu_buffer in ring_buffer_wake_waiters().(CVE-2022-49889)

    netlabel: Fix NULL pointer exception caused by CALIPSO on IPv4 sockets.(CVE-2025-22063)

    clk: samsung: Fix UBSAN panic in samsung_clk_init().(CVE-2025-39728)

    x86/mm/pat: Fix VM_PAT handling when fork() fails in copy_page_range().(CVE-2025-22090)

    misc/vmw_vmci: fix an infoleak in vmci_host_do_receive_datagram().(CVE-2022-49788)

    scsi: mpt3sas: Fix NULL pointer access in mpt3sas_transport_port_add().(CVE-2023-53124)

    tracing: Fix wild-memory-access in register_synth_event().(CVE-2022-49799)

    hrtimers: Handle CPU state correctly on hotplug(CVE-2024-57951)

    block, bfq: fix uaf for bfqq in bic_set_bfqq().(CVE-2023-52983)

    tcp: Fix data-races around sysctl_tcp_max_reordering.(CVE-2022-49571)

    tcp: Fix data-races around sysctl_tcp_slow_start_after_idle.(CVE-2022-49572)

    tcp: Fix a data-race around sysctl_tcp_early_retrans.(CVE-2022-49573)

    kthread: unpark only parked kthread(CVE-2024-50019)

    media: streamzap: fix race between device disconnection and urb callback(CVE-2025-22027)

    net: openvswitch: fix flow memory leak in ovs_flow_cmd_new(CVE-2023-52977)

    efi: Do not import certificates from UEFI Secure Boot for T2 Macs(CVE-2022-49357)

    Bluetooth: fix dangling sco_conn and use-after-free in sco_sock_timeout(CVE-2022-49474)

    mmc: core: use sysfs_emit() instead of sprintf().(CVE-2022-49267)

    ext4: fix OOB read when checking dotdot dir(CVE-2025-37785)

    tcp: Fix data-races around sysctl_tcp_fastopen.(CVE-2022-49586)

    tcp: Fix a data-race around sysctl_tcp_thin_linear_timeouts.(CVE-2022-49575)

    ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg(CVE-2022-49727)

    tcp: Fix a data-race around sysctl_tcp_notsent_lowat.(CVE-2022-49587)

    dlm: prevent NPD when writing a positive value to event_done(CVE-2025-23131)

    thermal: int340x: Add NULL check for adev(CVE-2025-23136)

    nfsd: don't ignore the return code of svc_proc_register().(CVE-2025-22026)

    ext4: fix out-of-bound read in ext4_xattr_inode_dec_ref_all().(CVE-2025-22121)

    ext4: avoid journaling sb update on error if journal is destroying(CVE-2025-22113)

Tenable has extracted the preceding description block directly from the EulerOS kernel security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:01983-1 advisory.

    The SUSE Linux Enterprise 12 SP5 kernel was updated to receive various security bugfixes.


    The following security bugs were fixed:

    - CVE-2021-47670: can: peak_usb: fix use after free bugs (bsc#1241407).
    - CVE-2022-49139: Bluetooth: fix null ptr deref on hci_sync_conn_complete_evt (bsc#1238032).
    - CVE-2022-49145: ACPI: CPPC: Avoid out of bounds access when parsing _CPC data (bsc#1238162).
    - CVE-2022-49168: btrfs: do not clean up repair bio if submit fails (bsc#1238109).
    - CVE-2022-49190: kernel/resource: fix kfree() of bootmem memory again (bsc#1238130).
    - CVE-2022-49212: mtd: rawnand: atmel: fix refcount issue in atmel_nand_controller_init (bsc#1238331).
    - CVE-2022-49216: drm/tegra: Fix reference leak in tegra_dsi_ganged_probe (bsc#1238338).
    - CVE-2022-49235: ath9k_htc: fix uninit value bugs (bsc#1238333).
    - CVE-2022-49248: ALSA: firewire-lib: fix uninitialized flag for AV/C deferred transaction (bsc#1238284).
    - CVE-2022-49253: media: usb: go7007: s2250-board: fix leak in probe() (bsc#1238420).
    - CVE-2022-49320: dmaengine: zynqmp_dma: In struct zynqmp_dma_chan fix desc_size data type (bsc#1238394).
    - CVE-2022-49326: rtl818x: Prevent using not initialized queues (bsc#1238646).
    - CVE-2022-49371: driver core: fix deadlock in __device_attach (bsc#1238546).
    - CVE-2022-49382: soc: rockchip: Fix refcount leak in rockchip_grf_init (bsc#1238306).
    - CVE-2022-49396: phy: qcom-qmp: fix reset-controller leak on probe errors (bsc#1238289).
    - CVE-2022-49420: net: annotate races around sk->sk_bound_dev_if (bsc#1238887).
    - CVE-2022-49441: tty: fix deadlock caused by calling printk() under tty_port->lock (bsc#1238263).
    - CVE-2022-49445: pinctrl: renesas: core: Fix possible null-ptr-deref in sh_pfc_map_resources()     (bsc#1238019).
    - CVE-2022-49460: PM / devfreq: rk3399_dmc: Disable edev on remove() (bsc#1238892).
    - CVE-2022-49467: drm: msm: fix possible memory leak in mdp5_crtc_cursor_set() (bsc#1238815).
    - CVE-2022-49474: Bluetooth: fix dangling sco_conn and use-after-free in sco_sock_timeout (bsc#1238071).
    - CVE-2022-49491: drm/rockchip: vop: fix possible null-ptr-deref in vop_bind() (bsc#1238539).
    - CVE-2022-49503: ath9k_htc: fix potential out of bounds access with invalid rxstatus->rs_keyix     (bsc#1238868).
    - CVE-2022-49592: net: stmmac: fix dma queue left shift overflow issue (bsc#1238311).
    - CVE-2022-49625: sfc: fix kernel panic when creating VF (bsc#1238411).
    - CVE-2022-49635: drm/i915/selftests: fix subtraction overflow bug (bsc#1238806).
    - CVE-2022-49652: dmaengine: ti: Fix refcount leak in ti_dra7_xbar_route_allocate (bsc#1238871).
    - CVE-2022-49715: irqchip/gic-v3: Fix refcount leak in gic_populate_ppi_partitions (bsc#1238818).
    - CVE-2022-49728: kABI workaround for changeing the variable length type to size_t (bsc#1239111).
    - CVE-2022-49729: nfc: nfcmrvl: Fix memory leak in nfcmrvl_play_deferred (bsc#1239060).
    - CVE-2022-49751: w1: fix WARNING after calling w1_process() (bsc#1240254).
    - CVE-2022-49761: btrfs: always report error in run_one_delayed_ref() (bsc#1240261).
    - CVE-2022-49772: ALSA: usb-audio: Drop snd_BUG_ON() from snd_usbmidi_output_open() (bsc#1242147).
    - CVE-2022-49775: tcp: cdg: allow tcp_cdg_release() to be called multiple times (bsc#1242245).
    - CVE-2022-49776: macvlan: enforce a consistent minimal mtu (bsc#1242248).
    - CVE-2022-49787: mmc: sdhci-pci: Fix possible memory leak caused by missing pci_dev_put() (bsc#1242352).
    - CVE-2022-49788: misc/vmw_vmci: fix an infoleak in vmci_host_do_receive_datagram() (bsc#1242353).
    - CVE-2022-49813: net: ena: Fix error handling in ena_init() (bsc#1242497).
    - CVE-2022-49821: mISDN: fix possible memory leak in mISDN_dsp_element_register() (bsc#1242542).
    - CVE-2022-49826: ata: libata-transport: fix double ata_host_put() in ata_tport_add() (bsc#1242549).
    - CVE-2022-49829: drm/scheduler: fix fence ref counting (bsc#1242691).
    - CVE-2022-49832: pinctrl: devicetree: fix null pointer dereferencing in pinctrl_dt_to_map (bsc#1242154).
    - CVE-2022-49835: ALSA: hda: fix potential memleak in 'add_widget_node' (bsc#1242385).
    - CVE-2022-49840: bpf, test_run: Fix alignment problem in bpf_prog_test_run_skb() (bsc#1242447).
    - CVE-2022-49842: ASoC: soc-utils: Remove __exit for snd_soc_util_exit() (bsc#1242484).
    - CVE-2022-49853: net: macvlan: fix memory leaks of macvlan_common_newlink (bsc#1242688).
    - CVE-2022-49861: dmaengine: mv_xor_v2: Fix a resource leak in mv_xor_v2_remove() (bsc#1242580).
    - CVE-2022-49862: tipc: fix the msg->req tlv len check in tipc_nl_compat_name_table_dump_header     (bsc#1242755).
    - CVE-2022-49865: ipv6: addrlabel: fix infoleak when sending struct ifaddrlblmsg to network (bsc#1242570).
    - CVE-2022-49871: net: tun: call napi_schedule_prep() to ensure we own a napi (bsc#1242558).
    - CVE-2022-49872: net: gso: fix panic on frag_list with mixed head alloc types (bsc#1242594).
    - CVE-2022-49874: HID: hyperv: fix possible memory leak in mousevsc_probe() (bsc#1242478).
    - CVE-2022-49898: btrfs: fix tree mod log mishandling of reallocated nodes (bsc#1242472).
    - CVE-2022-49907: net: mdio: fix undefined behavior in bit shift for __mdiobus_register (bsc#1242450).
    - CVE-2022-49913: btrfs: fix inode list leak during backref walking at find_parent_nodes() (bsc#1242470).
    - CVE-2022-49914: btrfs: fix inode list leak during backref walking at resolve_indirect_refs()     (bsc#1242427).
    - CVE-2022-49922: nfc: nfcmrvl: Fix potential memory leak in nfcmrvl_i2c_nci_send() (bsc#1242378).
    - CVE-2022-49923: nfc: nxp-nci: Fix potential memory leak in nxp_nci_send() (bsc#1242394).
    - CVE-2022-49924: nfc: fdp: Fix potential memory leak in fdp_nci_send() (bsc#1242426).
    - CVE-2022-49925: RDMA/core: Fix null-ptr-deref in ib_core_cleanup() (bsc#1242371).
    - CVE-2022-49931: IB/hfi1: Correctly move list in sc_disable() (bsc#1242382).
    - CVE-2023-52868: thermal: core: prevent potential string overflow (bsc#1225044).
    - CVE-2023-52975: scsi: iscsi_tcp: Fix UAF during logout when accessing the shost ipaddress (bsc#1240322).
    - CVE-2023-52988: ALSA: hda/via: Avoid potential array out-of-bound in add_secret_dac_path()     (bsc#1240293).
    - CVE-2023-52989: firewire: fix memory leak for payload of request subaction to IEC 61883-1 FCP region     (bsc#1240266).
    - CVE-2023-52993: x86/i8259: Mark legacy PIC interrupts with IRQ_LEVEL (bsc#1240297).
    - CVE-2023-53039: HID: intel-ish-hid: ipc: Fix potential use-after-free in work function (bsc#1242745).
    - CVE-2023-53045: usb: gadget: u_audio: do not let userspace block driver unbind (bsc#1242756).
    - CVE-2023-53066: qed/qed_sriov: guard against NULL derefs from qed_iov_get_vf_info (bsc#1242227).
    - CVE-2023-53079: net/mlx5: Fix steering rules cleanup (bsc#1242765).
    - CVE-2023-53080: xsk: Add missing overflow check in xdp_umem_reg (bsc#1242287).
    - CVE-2023-53094: tty: serial: fsl_lpuart: fix race on RX DMA shutdown (bsc#1242288).
    - CVE-2023-53103: bonding: Fix memory leak when changing bond type to Ethernet (bsc#1242408).
    - CVE-2023-53114: i40e: Fix kernel crash during reboot when adapter is in recovery mode (bsc#1242398).
    - CVE-2023-53139: nfc: fdp: add null check of devm_kmalloc_array in fdp_nci_i2c_read_device_properties     (bsc#1242361).
    - CVE-2024-26740: Fixed use the backlog for mirred ingress  (bsc#1222563).
    - CVE-2024-27010: net/sched: Fix mirred deadlock on device recursion (bsc#1223720).
    - CVE-2024-45021: memcg_write_event_control(): fix a user-triggerable oops (bsc#1230434).
    - CVE-2024-46751: btrfs: do not BUG_ON() when 0 reference count at btrfs_lookup_extent_info()     (bsc#1230786).
    - CVE-2024-46752: btrfs: reduce nesting for extent processing at btrfs_lookup_extent_info() (bsc#1230794).
    - CVE-2024-50106: nfsd: fix race between laundromat and free_stateid() (bsc#1232882).
    - CVE-2024-53168: sunrpc: fix one UAF issue caused by sunrpc kernel tcp socket (bsc#1234887).
    - CVE-2024-56779: nfsd: fix nfs4_openowner leak when concurrent nfsd4_open occur (bsc#1235632).
    - CVE-2025-21648: netfilter: conntrack: clamp maximum hashtable size to INT_MAX (bsc#1236142).
    - CVE-2025-21702: pfifo_tail_enqueue: Drop new packet when sch->limit == 0 (bsc#1237312).
    - CVE-2025-21704: usb: cdc-acm: Check control transfer buffer size before access (bsc#1237571).
    - CVE-2025-21787: team: better TEAM_OPTION_TYPE_STRING validation (bsc#1238774).
    - CVE-2025-21814: ptp: Ensure info->enable callback is always set (bsc#1238473).
    - CVE-2025-22021: netfilter: socket: Lookup orig tuple for IPv6 SNAT (bsc#1241282).
    - CVE-2025-22027: media: streamzap: fix race between device disconnection and urb callback (bsc#1241369).
    - CVE-2025-22050: usbnet:fix NPE during rx_complete (bsc#1241441).
    - CVE-2025-22058: udp: Fix memory accounting leak (bsc#1241332).
    - CVE-2025-22060: net: mvpp2: Prevent parser TCAM memory corruption (bsc#1241526).
    - CVE-2025-22063: netlabel: Fix NULL pointer exception caused by CALIPSO on IPv4 sockets (bsc#1241351).
    - CVE-2025-22104: ibmvnic: Use kernel helpers for hex dumps (bsc#1241550).
    - CVE-2025-23136: thermal: int340x: Add NULL check for adev (bsc#1241357).
    - CVE-2025-23150: ext4: fix off-by-one error in do_split (bsc#1242513).
    - CVE-2025-23161: PCI: vmd: Make vmd_dev::cfg_lock a raw_spinlock_t type (bsc#1242792).
    - CVE-2025-37749: net: ppp: Add bound checking for skb data on ppp_sync_txmung (bsc#1242859).
    - CVE-2025-37752: net_sched: sch_sfq: move the limit validation (bsc#1242504).
    - CVE-2025-37780: isofs: Prevent the use of too small fid (bsc#1242786).
    - CVE-2025-37782: hfs/hfsplus: fix slab-out-of-bounds in hfs_bnode_read_key (bsc#1242770).
    - CVE-2025-37789: net: openvswitch: fix nested key length validation in the set() action (bsc#1242762).
    - CVE-2025-37794: wifi: mac80211: Purge vif txq in ieee80211_do_stop() (bsc#1242566).
    - CVE-2025-37796: wifi: at76c50x: fix use after free access in at76_disconnect (bsc#1242727).
    - CVE-2025-37797: net_sched: hfsc: Fix a UAF vulnerability in class handling (bsc#1242417).
    - CVE-2025-37823: net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too (bsc#1242924).
    - CVE-2025-37833: net/niu: Niu requires MSIX ENTRY_DATA fields touch before entry reads (bsc#1242868).
    - CVE-2025-37852: drm/amdgpu: handle amdgpu_cgs_create_device() errors in amd_powerplay_create()     (bsc#1243074).
    - CVE-2025-37879: 9p/net: fix improper handling of bogus negative read/write replies (bsc#1243077).
    - CVE-2025-37949: xenbus: Use kref to track req lifetime (bsc#1243541).
    - CVE-2025-37989: net: phy: leds: fix memory leak (bsc#1243511).
    - CVE-2025-38637: net_sched: skbprio: Remove overly strict queue assertions (bsc#1241657).


Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - net: annotate races around sk->sk_bound_dev_if UDP sendmsg() is lockless, and reads sk->sk_bound_dev_if     while this field can be changed by another thread. Adds minimal annotations to avoid KCSAN splats for UDP.
    Following patches will add more annotations to potential lockless readers. BUG: KCSAN: data-race in
    __ip6_datagram_connect / udpv6_sendmsg write to 0xffff888136d47a94 of 4 bytes by task 7681 on cpu 0:
    __ip6_datagram_connect+0x6e2/0x930 net/ipv6/datagram.c:221 ip6_datagram_connect+0x2a/0x40     net/ipv6/datagram.c:272 inet_dgram_connect+0x107/0x190 net/ipv4/af_inet.c:576 __sys_connect_file     net/socket.c:1900 [inline] __sys_connect+0x197/0x1b0 net/socket.c:1917 __do_sys_connect net/socket.c:1927     [inline] __se_sys_connect net/socket.c:1924 [inline] __x64_sys_connect+0x3d/0x50 net/socket.c:1924     do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x50 arch/x86/entry/common.c:80     entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff888136d47a94 of 4 bytes by task 7670 on cpu 1:
    udpv6_sendmsg+0xc60/0x16e0 net/ipv6/udp.c:1436 inet6_sendmsg+0x5f/0x80 net/ipv6/af_inet6.c:652     sock_sendmsg_nosec net/socket.c:705 [inline] sock_sendmsg net/socket.c:725 [inline]
    ____sys_sendmsg+0x39a/0x510 net/socket.c:2413 ___sys_sendmsg net/socket.c:2467 [inline]
    __sys_sendmmsg+0x267/0x4c0 net/socket.c:2553 __do_sys_sendmmsg net/socket.c:2582 [inline]
    __se_sys_sendmmsg net/socket.c:2579 [inline] __x64_sys_sendmmsg+0x53/0x60 net/socket.c:2579 do_syscall_x64     arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x50 arch/x86/entry/common.c:80     entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0x00000000 -> 0xffffff9b Reported by Kernel     Concurrency Sanitizer on: CPU: 1 PID: 7670 Comm: syz-executor.3 Tainted: G W 5.18.0-rc1-syzkaller-dirty #0     Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 I chose to not     add Fixes: tag because race has minor consequences and stable teams busy enough. (CVE-2022-49420)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
249320	EulerOS 2.0 SP13 : kernel (EulerOS-SA-2025-1979)	Nessus	Huawei Local Security Checks	high
249192	EulerOS 2.0 SP13 : kernel (EulerOS-SA-2025-1993)	Nessus	Huawei Local Security Checks	high
240793	SUSE SLES12 Security Update : kernel (SUSE-SU-2025:01983-1)	Nessus	SuSE Local Security Checks	high
225625	Linux Distros Unpatched Vulnerability : CVE-2022-49420	Nessus	Misc.	medium

Detections

Analytics

CVE-2022-49420

medium

Tenable Plugins

high

high

high

medium