{
  "threat_severity" : "Low",
  "public_date" : "2025-02-26T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: XArray: Fix xas_create_range() when multi-order entry present",
    "id" : "2348324",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2348324"
  },
  "cvss3" : {
    "cvss3_base_score" : "4.7",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:H/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:\nXArray: Fix xas_create_range() when multi-order entry present\nIf there is already an entry present that is of order >= XA_CHUNK_SHIFT\nwhen we call xas_create_range(), xas_create_range() will misinterpret\nthat entry as a node and dereference xa_node->parent, generally leading\nto a crash that looks something like this:\ngeneral protection fault, probably for non-canonical address 0xdffffc0000000001:\n0000 [#1] PREEMPT SMP KASAN\nKASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]\nCPU: 0 PID: 32 Comm: khugepaged Not tainted 5.17.0-rc8-syzkaller-00003-g56e337f2cf13 #0\nRIP: 0010:xa_parent_locked include/linux/xarray.h:1207 [inline]\nRIP: 0010:xas_create_range+0x2d9/0x6e0 lib/xarray.c:725\nIt's deterministically reproducable once you know what the problem is,\nbut producing it in a live kernel requires khugepaged to hit a race.\nWhile the problem has been present since xas_create_range() was\nintroduced, I'm not aware of a way to hit it before the page cache was\nconverted to use multi-index entries." ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2022-11-15T00:00:00Z",
    "advisory" : "RHSA-2022:8267",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-162.6.1.el9_1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2022-11-15T00:00:00Z",
    "advisory" : "RHSA-2022:8267",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-162.6.1.el9_1"
  } ],
  "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" : "Fix deferred",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2022-49152\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49152\nhttps://lore.kernel.org/linux-cve-announce/2025022609-CVE-2022-49152-7f28@gregkh/T" ],
  "name" : "CVE-2022-49152",
  "csaw" : false
}