{
  "threat_severity" : "Moderate",
  "public_date" : "2025-06-18T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: arm64: fix oops in concurrently setting insn_emulation sysctls",
    "id" : "2373544",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2373544"
  },
  "cvss3" : {
    "cvss3_base_score" : "7.0",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
    "status" : "verified"
  },
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\narm64: fix oops in concurrently setting insn_emulation sysctls\nemulation_proc_handler() changes table->data for proc_dointvec_minmax\nand can generate the following Oops if called concurrently with itself:\n| Unable to handle kernel NULL pointer dereference at virtual address 0000000000000010\n| Internal error: Oops: 96000006 [#1] SMP\n| Call trace:\n| update_insn_emulation_mode+0xc0/0x148\n| emulation_proc_handler+0x64/0xb8\n| proc_sys_call_handler+0x9c/0xf8\n| proc_sys_write+0x18/0x20\n| __vfs_write+0x20/0x48\n| vfs_write+0xe4/0x1d0\n| ksys_write+0x70/0xf8\n| __arm64_sys_write+0x20/0x28\n| el0_svc_common.constprop.0+0x7c/0x1c0\n| el0_svc_handler+0x2c/0xa0\n| el0_svc+0x8/0x200\nTo fix this issue, keep the table->data as &insn->current_mode and\nuse container_of() to retrieve the insn pointer. Another mutex is\nused to protect against the current_mode update but not for retrieving\ninsn_emulation as table->data is no longer changing." ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2023-05-09T00:00:00Z",
    "advisory" : "RHSA-2023:2458",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-284.11.1.el9_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2023-05-09T00:00:00Z",
    "advisory" : "RHSA-2023:2458",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-284.11.1.el9_2"
  } ],
  "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" : "Not affected",
    "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" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2022-50206\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-50206\nhttps://lore.kernel.org/linux-cve-announce/2025061842-CVE-2022-50206-24d2@gregkh/T" ],
  "name" : "CVE-2022-50206",
  "csaw" : false
}