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              "value": "AV:N - Malformed DVB ULE SNDUs can be delivered as received network/transport-stream data to a configured DVB network interface. In the highest reasonable deployment, an attacker controlling or injecting into the DVB/IP broadcast feed can reach the vulnerable parser remotely without local device access.\nAC:L - The attacker only needs to craft a valid ULE SNDU with htype 255 and a correct CRC on the selected PID. There is no race or condition outside attacker control once the victim is receiving the ULE feed.\nPR:N - Creating the DVB network interface is CAP_SYS_ADMIN-gated on the victim, but exploitation occurs through inbound transport-stream data after setup. The sender of the malicious ULE packet needs no privileges on the victim system.\nUI:N - No victim action is required to process the malicious SNDU once the DVB network interface is active and receiving. Packet handling occurs asynchronously in the demux receive callback.\nS:U - The vulnerable code executes in the kernel and impacts the same operating-system security authority. There is no VM, IOMMU, or separate sandbox boundary crossed.\nC:H - The bug performs an out-of-bounds read from a kernel function-pointer table and may invoke the resulting pointer in kernel context. Treating the possible control-flow hijack at the higher severity, successful exploitation can expose kernel memory.\nI:H - The out-of-bounds table value may be called as a function pointer, creating a potential kernel control-flow hijack. Under the higher-severity rule, this is scored as potential kernel code execution and arbitrary modification.\nA:H - An invalid or unintended function-pointer call in kernel context can directly trigger an oops or panic. The malicious packet can be sent repeatedly to sustain denial of service."
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              "value": "AV:L - The vulnerable paths are reached through local `ioctl()` calls on media/video device file descriptors: `MEDIA_REQUEST_IOC_REINIT` on a request fd and `VIDIOC_REQBUFS(0)` on a V4L2 video fd. The affected code is not reachable directly from network packets or adjacent/physical protocol input.\nAC:L - This is a race, but an attacker controls both racing operations by issuing concurrent ioctls from local threads or processes. No condition beyond access to a request-capable media device is required.\nPR:L - The kernel path has no capability or admin check; the attacker only needs ordinary local ability to open the relevant `/dev/media*` and `/dev/video*` nodes. This is basic local privilege rather than real root/admin privilege.\nUI:N - Once the attacker can run local code and open the device nodes, exploitation is driven entirely by attacker-issued ioctls. No separate victim action is required.\nS:U - The vulnerability corrupts kernel media/videobuf2 request state within the same kernel security authority. It is not a VM escape, IOMMU bypass, or other cross-scope boundary violation.\nC:H - The bug is a use-after-free involving media request objects and vb2 buffer/request state during concurrent cleanup and queue teardown. Per kernel CVSS guidance, UAF memory corruption can be leveraged for kernel memory disclosure, so confidentiality impact is high.\nI:H - The race can corrupt freed kernel heap objects and request/buffer state, giving a plausible path to control-flow or arbitrary-write style exploitation. Per kernel CVSS guidance, use-after-free memory corruption warrants high integrity impact.\nA:H - The fix commit explicitly addresses use-after-free reports, and such kernel UAFs can reliably trigger KASAN reports, oopses, or panics. This is a high availability impact."
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              "value": "AV:A - The vulnerable LLCP receive handlers process NFC DEP/LLCP PDUs supplied by a nearby NFC peer over the NFC radio link. The attacker must be in NFC range, so this is adjacent rather than local or internet-routable network access.\nAC:L - The attacker can drive the required LLCP packet sequence, for example closing a matched LLCP socket with a remote control PDU and then sending DISC or I/RR/RNR for the same SAP pair. No uncontrollable race or special memory layout condition is required to trigger the double put/unlock path.\nPR:N - The triggering input is unauthenticated NFC LLCP traffic from the peer and does not require an account or privileges on the victim. Any local NFC setup or listening service is an environmental prerequisite, not a privilege held by the attacker.\nUI:N - After the victim NFC subsystem/link is active and the attacker is in range, malicious LLCP frames are processed by the kernel receive path without further victim action. Proximity is already captured by AV:A.\nS:U - The vulnerability corrupts kernel socket lifetime state within the same kernel security authority. It does not cross a VM, hypervisor, IOMMU, or separate authorization boundary.\nC:H - The bug causes a refcount imbalance and use-after-free of an NFC LLCP socket object. Kernel UAFs are defensibly treated as enabling memory disclosure primitives under the required high-severity guidance.\nI:H - The freed socket object can potentially be reclaimed and controlled, turning the UAF into kernel memory corruption or control-flow/data-structure modification. Under the required guidance, UAF impact is high for integrity.\nA:H - The double release and double sock_put can produce refcount underflow, use-after-free, warnings, oopses, or crashes in kernel socket handling. A kernel crash or panic is high availability impact."
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            "lang": "en",
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            "lang": "en",
            "value": "RHSA-2026:25181: Red Hat OpenShift Container Platform 4.18"
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            "value": "RHSA-2026:25200: Red Hat OpenShift Container Platform 4.19"
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            "lang": "en",
            "value": "RHSA-2026:25193: Red Hat OpenShift Container Platform 4.20"
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            "lang": "en",
            "value": "RHSA-2026:25186: Red Hat OpenShift Container Platform 4.21"
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            "lang": "en",
            "value": "RHSA-2026:44232: Red Hat OpenShift Container Platform 4.22"
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            "lang": "en",
            "value": "RHSA-2026:24343: Red Hat Enterprise Linux AppStream EUS (v. 10.0), Red Hat Enterprise Linux BaseOS EUS (v. 10.0), Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0), Red Hat Enterprise Linux Real Time EUS (v. 10.0), Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0)"
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            "value": "RHSA-2026:25191: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux BaseOS (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10), Red Hat Enterprise Linux Real Time (v. 10), Red Hat Enterprise Linux Real Time for NFV (v. 10)"
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            "value": "RHSA-2026:26535: Red Hat Enterprise Linux BaseOS AUS (v.8.4), Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)"
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            "value": "RHSA-2026:28748: Red Hat Enterprise Linux BaseOS E4S (v.8.8)"
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          {
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            "time": "2026-05-01T00:00:00.000Z",
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        "title": "kernel: ip6_tunnel: clear skb2-\u003ecb[] in ip4ip6_err()",
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            "value": "Mitigation for this issue is to skip loading the affected module `ip6_tunnel` onto the system till we have a fix available, this can be done by a blacklist mechanism, this will ensure the driver is not loaded at the boot time.\n~~~\nHow do I blacklist a kernel module to prevent it from loading automatically? \nhttps://access.redhat.com/solutions/41278  \n~~~\n\nWe may also want to detection and monitoring an affected system as below:\n~~~\nMonitor for exploitation attempts:\n\n# Enable kernel audit for IPv6 tunnel operations\nauditctl -a always,exit -F arch=b64 -S socket -F a0=10 -F a1=3 -k ipv6_tunnel\n\n# Monitor system logs for kernel panics/crashes\njournalctl -k -p err -f | grep -i \"ip6_tunnel\\|icmp\\|stack\"\n~~~"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nip6_tunnel: clear skb2-\u003ecb[] in ip4ip6_err()\n\nOskar Kjos reported the following problem.\n\nip4ip6_err() calls icmp_send() on a cloned skb whose cb[] was written\nby the IPv6 receive path as struct inet6_skb_parm. icmp_send() passes\nIPCB(skb2) to __ip_options_echo(), which interprets that cb[] region\nas struct inet_skb_parm (IPv4). The layouts differ: inet6_skb_parm.nhoff\nat offset 14 overlaps inet_skb_parm.opt.rr, producing a non-zero rr\nvalue. __ip_options_echo() then reads optlen from attacker-controlled\npacket data at sptr[rr+1] and copies that many bytes into dopt-\u003e__data,\na fixed 40-byte stack buffer (IP_OPTIONS_DATA_FIXED_SIZE).\n\nTo fix this we clear skb2-\u003ecb[], as suggested by Oskar Kjos.\n\nAlso add minimal IPv4 header validation (version == 4, ihl \u003e= 5)."
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            "baseSeverity": "CRITICAL",
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              "value": "AV:N - A remote IPv6 peer can send a crafted ICMPv6 error packet to an IPv6 tunnel endpoint and reach `icmpv6_rcv()` -\u003e `icmpv6_notify()` -\u003e `tunnel46_err()` -\u003e `ip4ip6_err()` without local execution. The vulnerable code processes network packet contents in the kernel network stack.\nAC:L - Triggering is deterministic once an IPv4-over-IPv6 tunnel endpoint exists: the attacker controls the ICMPv6 error, IPv6 extension-header-derived control block state, and quoted inner IPv4 bytes used by `__ip_options_echo()`. There is no race or hard-to-influence condition.\nPR:N - The exploit packet is unauthenticated network input and does not require the attacker to have an account or capabilities on the target. Tunnel configuration requires administration, but exploitation of an already deployed tunnel endpoint does not.\nUI:N - No victim user action is required; receipt and processing of the crafted ICMPv6 packet is enough. The path is normal kernel packet handling.\nS:U - The corruption occurs inside the kernel network stack and impacts the same kernel security authority. This is not a VM escape or cross-scope boundary bypass.\nC:H - The bug is an attacker-controlled kernel stack buffer overflow in `__ip_options_echo()` via a bogus IPv4 option length copied into a fixed 40-byte buffer. Kernel memory corruption of this kind can plausibly be leveraged for high-impact information disclosure.\nI:H - The overflow copies attacker-controlled packet data onto the kernel stack and can plausibly corrupt control data or adjacent state. Under the required higher-severity rule, this supports high integrity impact.\nA:H - Even without full code execution, the kernel stack overflow can trigger an oops, panic, or other fatal corruption. The crafted packet can be sent remotely and repeatedly against a vulnerable tunnel endpoint."
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        "dateUpdated": "2026-08-05T12:25:27.160Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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    "cveId": "CVE-2026-43037",
    "datePublished": "2026-05-01T14:15:35.314Z",
    "dateReserved": "2026-05-01T14:12:55.978Z",
    "dateUpdated": "2026-09-01T12:04:49.422Z",
    "state": "PUBLISHED"
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        },
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          "url": "https://git.kernel.org/stable/c/52327268224fb9ccc7ecfbbdfdfff54b6e93c518"
        },
        {
          "url": "https://git.kernel.org/stable/c/92e64f1852f455f57d0850989e57c30d7fac7d95"
        },
        {
          "url": "https://git.kernel.org/stable/c/aea5e37388a080361110ab5790f57ae0af383650"
        },
        {
          "url": "https://git.kernel.org/stable/c/d78840a6a38d312dc1a51a65317bb67e46f0b929"
        }
      ],
      "title": "smb: client: fix in-place encryption corruption in SMB2_write()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-43362",
    "datePublished": "2026-05-08T14:21:16.358Z",
    "dateReserved": "2026-05-01T14:12:56.005Z",
    "dateUpdated": "2026-08-05T12:27:28.156Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}