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

  - i2c: smbus: reject oversized block transfers in the common path The SMBus block transfer length     data->block[0] is validated in i2c_smbus_xfer_emulated() but that check runs too late for tracepoints and     is skipped entirely when the adapter provides a native smbus_xfer implementation. This allows user-     controlled oversized block lengths to reach tracepoint memcpy calls and driver callbacks unchecked. Add an     early validation in __i2c_smbus_xfer() that rejects block transfers whose caller-supplied length is zero     or exceeds I2C_SMBUS_BLOCK_MAX before any tracepoint fires or driver callback runs. data->block[0] is     filled in by the device on SMBus block reads, so the check is scoped to operations where the length is     actually supplied by the caller. This is consistent with the existing -EINVAL convention in the emulated     path and protects all downstream consumers at once: the smbus_write tracepoint, all native smbus_xfer     driver implementations, and the emulated path. Two distinct bugs are fixed by this change: Bug 1:
    smbus_write tracepoint OOB (include/trace/events/smbus.h) trace_smbus_write() fires before any validation     and copies data->block[0]+1 bytes into a 34-byte event buffer. With block[0]=0xfe the tracepoint copies     255 bytes, overflowing by 221. BUG: KASAN: stack-out-of-bounds in     trace_event_raw_event_smbus_write+0x27c/0x530 Read of size 255 at addr ffff88800d98fcf8 by task     poc_smbus/91 Call Trace: <TASK> __asan_memcpy+0x23/0x80 trace_event_raw_event_smbus_write+0x27c/0x530
    __i2c_smbus_xfer+0x43a/0xa40 i2c_smbus_xfer+0x19e/0x340 i2cdev_ioctl_smbus+0x38f/0x7f0     i2cdev_ioctl+0x35e/0x680 __x64_sys_ioctl+0x147/0x1e0 do_syscall_64+0xcf/0x15a0     entry_SYSCALL_64_after_hwframe+0x76/0x7e </TASK> Bug 2: i2c-stub I2C_SMBUS_I2C_BLOCK_DATA OOB     (drivers/i2c/i2c-stub.c) stub_xfer() implements .smbus_xfer directly and only clamps block[0] against     256-command, not I2C_SMBUS_BLOCK_MAX. With block[0]=0xff and command=0 the loop accesses block[1+i] for i     up to 254, far past the 34-byte union. UBSAN: array-index-out-of-bounds in drivers/i2c/i2c-stub.c:223:44     index 34 is out of range for type '__u8 [34]' Call Trace: <TASK> __ubsan_handle_out_of_bounds+0xd7/0x120     stub_xfer+0x1971/0x198f [i2c_stub] __i2c_smbus_xfer+0x306/0xa40 i2c_smbus_xfer+0x19e/0x340     i2cdev_ioctl_smbus+0x38f/0x7f0 i2cdev_ioctl+0x35e/0x680 __x64_sys_ioctl+0x147/0x1e0     do_syscall_64+0xcf/0x15a0 entry_SYSCALL_64_after_hwframe+0x76/0x7e </TASK> Both traces reproduced on     v7.0-rc6+i2c/for-current with KASAN+UBSAN. (CVE-2026-93287)

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

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-3192 advisory.

    An issue in the Linux kernel's virtio-net/TAP networking path could allow an actor with privileged access     inside a guest virtual machine to send specially crafted network packets that corrupt host kernel memory     on KVM-based hypervisors running unpatched Linux kernel versions 4.4 through 6.18. This could result in     disclosure of host memory or a denial of service.



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    xfrm: Fix dev use-after-free in xfrm async resumption (CVE-2026-72463)

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    bpf: Guard __get_user acesss with access_ok for uprobe_multi data (CVE-2026-74258)

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    ipv4: fib: Don't dump dying fib_info in fib_leaf_notify(). (CVE-2026-74289)

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    netfilter: cttimeout: detach dataplane timeout policy and repurpose refcount (CVE-2026-74347)

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    fou: Fix use-after-free in fou_create() (CVE-2026-74496)

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    vfio/pci: clear vdev->msi_perm after freeing it on init failure (CVE-2026-89777)

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    isofs: fix out-of-bounds page array access on empty zisofs block (CVE-2026-89778)

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    perf: Fix use-after-free when perf mmap() revival races with the last munmap() (CVE-2026-89791)

    In the Linux kernel, the following vulnerability has been resolved:

    nvme: skip the zoned limits update if the zone info query failed (CVE-2026-89971)

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    tcp: reject non zerocopy devmem tx (CVE-2026-90051)

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    net/sched: sch_htb: limit htb_classify inner-class filter hops (CVE-2026-90053)

    In the Linux kernel, the following vulnerability has been resolved:

    net/sched: bound qdisc_pkt_len to prevent qdisc soft lockup (CVE-2026-90058)

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    virtio-net: Ensure that TCP packets don't overflow gso_segs (CVE-2026-90063)

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    net/sched: sfq: clamp quantum to avoid signed overflow soft lockup (CVE-2026-90072)

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    net/sched: hhf: clamp quantum before hhf_change() to avoid overflow (CVE-2026-90073)

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    net/sched: fq_codel: clamp default quantum and mtu (CVE-2026-90075)

    In the Linux kernel, the following vulnerability has been resolved:

    net/sched: fq: add overflow bounds to quantum and initial quantum (CVE-2026-90076)

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    NFSv4/pnfs: key the data server cache on the NFS version (CVE-2026-90102)

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    NFSv4.2: fix LAYOUTSTATS send buffer exhaustion (CVE-2026-90103)

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    xsk: fix NULL pointer dereference in __xsk_rcv() (CVE-2026-90115)

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    vsock: don't check the listener's sk_err in vsock_accept() (CVE-2026-90138)

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    null_blk: register configfs subsystem after creating default devices (CVE-2026-90189)

    In the Linux kernel, the following vulnerability has been resolved:

    fs/ntfs3: reject out-of-range evcn in mi_enum_attr() (CVE-2026-90199)

    In the Linux kernel, the following vulnerability has been resolved:

    nvme/ioctl: check SUBMIT_IO with nvme_cmd_allowed() (CVE-2026-90227)

    In the Linux kernel, the following vulnerability has been resolved:

    bpf: Check load-acquire src ptr type before the load (CVE-2026-90312)

    In the Linux kernel, the following vulnerability has been resolved:

    bpf, cgroup: Fix invalid storage access after __cgroup_bpf_attach failed (CVE-2026-90313)

    In the Linux kernel, the following vulnerability has been resolved:

    dm-integrity: replace forgeable discard filler with a keyed sector marker (CVE-2026-90333)

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    bpf, x86: Fix trampoline stack size for 128-bit arguments (CVE-2026-90358)

    In the Linux kernel, the following vulnerability has been resolved:

    bpf: Fix potential UAF in bpf_netns_link_update_prog (CVE-2026-90393)

    In the Linux kernel, the following vulnerability has been resolved:

    iommu/tegra241-cmdqv: Synchronize the error ISR against VINTF (de)init (CVE-2026-90429)

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    RDMA/mlx5: Fix integer overflow of user QP buffer size (CVE-2026-90435)

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    RDMA/core: Fix potential use after free in ib_dealloc_pd_user() (CVE-2026-92507)

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    software node: Fix software_node_get_reference_args() with index -1 (CVE-2026-93046)

    In the Linux kernel, the following vulnerability has been resolved:

    uio: Fix stale info pointer in failed registration path (CVE-2026-93054)

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    bpf: Reject rdonly/rdwr_buf_size kfunc arguments that exceed u32 max (CVE-2026-93125)

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    mm/secretmem: properly account locked pages (CVE-2026-93243)

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    vxlan: mdb: Fix use-after-free in vxlan_mdb_flush() (CVE-2026-93250)

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    ext4: skip extra isize expansion during mount to prevent deadlock (CVE-2026-93268)

    In the Linux kernel, the following vulnerability has been resolved:

    i2c: smbus: reject oversized block transfers in the common path (CVE-2026-93287)

    In the Linux kernel, the following vulnerability has been resolved:

    netfilter: nfnetlink_log: wait for rcu grace period before freeing pernet state (CVE-2026-93288)

    In the Linux kernel, the following vulnerability has been resolved:

    smb/client: zero-initialize stack-allocated cifs_open_info_data (CVE-2026-93801)

    In the Linux kernel, the following vulnerability has been resolved:

    btrfs: tree-checker: validate INODE_REF's namelen (CVE-2026-93813)

    In the Linux kernel, the following vulnerability has been resolved:

    perf: Fix addr_filter_ranges lifetime (CVE-2026-93817)

    In the Linux kernel, the following vulnerability has been resolved:

    tls: reject the combination of TLS and sockmap (CVE-2026-93824)

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    virtio-fs: avoid double-free on failed queue setup (CVE-2026-93827)

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    exfat: fix handling of damaged volume in exfat_create_upcase_table() (CVE-2026-93828)

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    btrfs: tree-checker: validate names in ROOT_REF and ROOT_BACKREF (CVE-2026-97415)

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    RDMA/umem: Be careful about boundary conditions in ib_umem_find_best_pgsz() (CVE-2026-97421)

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    fs/ntfs3: validate index entry key bounds (CVE-2026-97438)

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    fs/ntfs3: preserve non-DOS attribute bits in system.dos_attrib (CVE-2026-97439)

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    ACPICA: Fix use-after-free in acpi_ds_terminate_control_method() (CVE-2026-97455)

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    mptcp: avoid unneeded actions on subflow reset (CVE-2026-97524)

    In the Linux kernel, the following vulnerability has been resolved:

    x86/mm/pat: Acquire init_mm read lock on attribute changes to avoid UAF (CVE-2026-97533)

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    smb: client: fix heap overflow in DACL owner/group rewrite (CVE-2026-97555)

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    smb: client: reject short READ responses in CIFSSMBRead() (CVE-2026-97565)

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    landlock: Fix use-after-free of the source's parent directory (CVE-2026-97594)

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    ipvs: reject invalid states in connection template sync records (CVE-2026-97596)

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    ipv6: flowlabel: cap duplicate leases per socket (CVE-2026-97597)

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    inet: frags: invalidate queues before flushing them (CVE-2026-97602)

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    net: openvswitch: fix use-after-free of the flow table mask array (CVE-2026-97611)

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    ipv6: fix fib6 walker UAF on seq stop (CVE-2026-97940)

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    x86/mm/pat: Acquire init_mm write lock on collapse to avoid UAF (CVE-2026-97943)

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    configfs: unhash the dentry before dropping the item in rmdir (CVE-2026-97949)

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    scsi: target: iscsi: Fix hang for aborted WRITE_PENDING commands (CVE-2026-97951)

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    net/sched: drr: clamp quantum in change class (CVE-2026-98010)

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    net/sched: hhf: clamp quantum in change and init paths (CVE-2026-98011)

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    net/sched: sfq: clamp quantum in change path (CVE-2026-98012)

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    net/mlx5: E-Switch: fix use-after-free in mlx5_eswitch_termtbl_put (CVE-2026-98015)

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    net/mlx5e: Fix use-after-free race in sample_restore_put() (CVE-2026-98016)

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    bpf: Reject untrusted allocated-object pointers (CVE-2026-98037)

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    bpf: Don't predict JMP32 pointer vs zero comparisons (CVE-2026-98041)

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    bpf: Check ancestor frames for rbtree callbacks (CVE-2026-98047)

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    nvme: remove stale namespaces by NSID range during scan (CVE-2026-98056)

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    bpf: Reject resilient lock operations in rbtree callbacks (CVE-2026-98060)

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    net/rds: acquire RDS_IN_XMIT in rds_tcp_reset_callbacks() (CVE-2026-98070)

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    ipvs: fix reversed sequence option serialization (CVE-2026-98078)

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    af_packet: Don't cast tpacket_hdr.tp_len to int in tpacket_parse_header(). (CVE-2026-98095)

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    ipv6: sr: restore network header before routing and forwarding (CVE-2026-98096)

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    net/sched: cls_u32: fix duplicate handle when node ID pool is exhausted (CVE-2026-98104)

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    netfs: Fix subreq ref leak (CVE-2026-98120)

    In the Linux kernel, the following vulnerability has been resolved:

    vxlan: mdb: Fix use-after-free in vxlan_mdb_remote_src_del() (CVE-2026-98122)

    In the Linux kernel, the following vulnerability has been resolved:

    sctp: fix soft lockup from unpadded ASCONF-ACK parameter iteration (CVE-2026-98123)

    In the Linux kernel, the following vulnerability has been resolved:

    sctp: fix a TOCTOU race in SCTP_CMD_TIMER_START (CVE-2026-98130)

    In the Linux kernel, the following vulnerability has been resolved:

    drm/virtio: use the DMA API for resource backing on Xen (CVE-2026-98156)

    In the Linux kernel, the following vulnerability has been resolved: ipv4: validate checksum_start before     completing checksum If a packet with bad checksum metadata gets into the ipv4 stack, skb_checksum_help can     corrupt the network header and cause a bunch of mischief. This was discovered and reported by Paulos, and     has been reporoduced by others independently since. We really shouldn't allow such packets in, but as a     defence in depth measure, let's also check before we complete the checksum. A more complete validation at     input is forthcoming, but needs more work. (CVE-2026-99999)

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

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

ID	Name	Product	Family	Published	Updated	Severity
349813	Linux Distros Unpatched Vulnerability : CVE-2026-93287	Nessus	Misc.	9/24/2026	10/5/2026	high
351155	Debian dsa-6528 : ata-modules-6.12.111+deb13-armmp-di - security update	Nessus	Debian Local Security Checks	9/29/2026	9/29/2026	high
362907	Debian dla-4817 : ata-modules-6.12.107+deb12-armmp-di - security update	Nessus	Debian Local Security Checks	10/4/2026	10/4/2026	high
365209	Amazon Linux 2023 : bpftool6.12, kernel6.12, kernel6.12-devel (ALAS2023-2026-3193)	Nessus	Amazon Linux Local Security Checks	10/12/2026	10/12/2026	medium
365258	Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-3192)	Nessus	Amazon Linux Local Security Checks	10/12/2026	10/17/2026	medium
364137	Oracle Linux 10 / 9 : Unbreakable Enterprise kernel (ELSA-2026-500374)	Nessus	Oracle Linux Local Security Checks	10/8/2026	10/8/2026	high
366919	Debian dla-4841 : ata-modules-6.1.0-53-armmp-di - security update	Nessus	Debian Local Security Checks	10/17/2026	10/17/2026	high

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