{
  "threat_severity" : "Low",
  "public_date" : "2025-09-17T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: Linux kernel: Local denial of service in skbuff due to improper network buffer handling",
    "id" : "2396145",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2396145"
  },
  "cvss3" : {
    "cvss3_base_score" : "5.5",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-805",
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\nskbuff: Account for tail adjustment during pull operations\nExtending the tail can have some unexpected side effects if a program uses\na helper like BPF_FUNC_skb_pull_data to read partial content beyond the\nhead skb headlen when all the skbs in the gso frag_list are linear with no\nhead_frag -\nkernel BUG at net/core/skbuff.c:4219!\npc : skb_segment+0xcf4/0xd2c\nlr : skb_segment+0x63c/0xd2c\nCall trace:\nskb_segment+0xcf4/0xd2c\n__udp_gso_segment+0xa4/0x544\nudp4_ufo_fragment+0x184/0x1c0\ninet_gso_segment+0x16c/0x3a4\nskb_mac_gso_segment+0xd4/0x1b0\n__skb_gso_segment+0xcc/0x12c\nudp_rcv_segment+0x54/0x16c\nudp_queue_rcv_skb+0x78/0x144\nudp_unicast_rcv_skb+0x8c/0xa4\n__udp4_lib_rcv+0x490/0x68c\nudp_rcv+0x20/0x30\nip_protocol_deliver_rcu+0x1b0/0x33c\nip_local_deliver+0xd8/0x1f0\nip_rcv+0x98/0x1a4\ndeliver_ptype_list_skb+0x98/0x1ec\n__netif_receive_skb_core+0x978/0xc60\nFix this by marking these skbs as GSO_DODGY so segmentation can handle\nthe tail updates accordingly.", "A flaw was found in the Linux kernel. A local user with low privileges could trigger a kernel bug by manipulating network packet buffer (skbuff) operations. Specifically, when a program uses a helper function to read data beyond the allocated buffer in certain Generic Segmentation Offload (GSO) scenarios, it can lead to an unexpected system crash. This vulnerability results in a Denial of Service (DoS)." ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2023-11-14T00:00:00Z",
    "advisory" : "RHSA-2023:7077",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8",
    "package" : "kernel-0:4.18.0-513.5.1.el8_9"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Out of support scope",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Fix deferred",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Fix deferred",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Fix deferred",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2022-50365\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-50365\nhttps://lore.kernel.org/linux-cve-announce/2025091716-CVE-2022-50365-9a71@gregkh/T" ],
  "name" : "CVE-2022-50365",
  "csaw" : false
}