{
  "threat_severity" : "Moderate",
  "public_date" : "2025-09-15T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()",
    "id" : "2395349",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2395349"
  },
  "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-476",
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\nmedia: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()\nWei Chen reports a kernel bug as blew:\ngeneral protection fault, probably for non-canonical address\nKASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]\n...\nCall Trace:\n<TASK>\n__i2c_transfer+0x77e/0x1930 drivers/i2c/i2c-core-base.c:2109\ni2c_transfer+0x1d5/0x3d0 drivers/i2c/i2c-core-base.c:2170\ni2cdev_ioctl_rdwr+0x393/0x660 drivers/i2c/i2c-dev.c:297\ni2cdev_ioctl+0x75d/0x9f0 drivers/i2c/i2c-dev.c:458\nvfs_ioctl fs/ioctl.c:51 [inline]\n__do_sys_ioctl fs/ioctl.c:870 [inline]\n__se_sys_ioctl+0xfb/0x170 fs/ioctl.c:856\ndo_syscall_x64 arch/x86/entry/common.c:50 [inline]\ndo_syscall_64+0x3d/0x90 arch/x86/entry/common.c:80\nentry_SYSCALL_64_after_hwframe+0x63/0xcd\nRIP: 0033:0x7fd834a8bded\nIn az6027_i2c_xfer(), if msg[i].addr is 0x99,\na null-ptr-deref will caused when accessing msg[i].buf.\nFor msg[i].len is 0 and msg[i].buf is null.\nFix this by checking msg[i].len in az6027_i2c_xfer()." ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 8.6 Extended Update Support",
    "release_date" : "2024-02-07T00:00:00Z",
    "advisory" : "RHSA-2024:0724",
    "cpe" : "cpe:/o:redhat:rhel_eus:8.6",
    "package" : "kernel-0:4.18.0-372.91.1.el8_6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2023-11-07T00:00:00Z",
    "advisory" : "RHSA-2023:6583",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-362.8.1.el9_3"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2023-11-07T00:00:00Z",
    "advisory" : "RHSA-2023:6583",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-362.8.1.el9_3"
  }, {
    "product_name" : "Red Hat Virtualization 4 for Red Hat Enterprise Linux 8",
    "release_date" : "2024-02-07T00:00:00Z",
    "advisory" : "RHSA-2024:0724",
    "cpe" : "cpe:/o:redhat:rhev_hypervisor:4.4::el8",
    "package" : "kernel-0:4.18.0-372.91.1.el8_6"
  } ],
  "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" : "Fix deferred",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Fix deferred",
    "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",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "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-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2022-50272\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-50272\nhttps://lore.kernel.org/linux-cve-announce/2025091505-CVE-2022-50272-4120@gregkh/T" ],
  "name" : "CVE-2022-50272",
  "csaw" : false
}