{
  "threat_severity" : "Low",
  "public_date" : "2024-11-25T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: mm: krealloc: Fix MTE false alarm in __do_krealloc",
    "id" : "2328792",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2328792"
  },
  "cvss3" : {
    "cvss3_base_score" : "3.3",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
    "status" : "verified"
  },
  "cwe" : "CWE-119",
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\nmm: krealloc: Fix MTE false alarm in __do_krealloc\nThis patch addresses an issue introduced by commit 1a83a716ec233 (\"mm:\nkrealloc: consider spare memory for __GFP_ZERO\") which causes MTE\n(Memory Tagging Extension) to falsely report a slab-out-of-bounds error.\nThe problem occurs when zeroing out spare memory in __do_krealloc. The\noriginal code only considered software-based KASAN and did not account\nfor MTE. It does not reset the KASAN tag before calling memset, leading\nto a mismatch between the pointer tag and the memory tag, resulting\nin a false positive.\nExample of the error:\n==================================================================\nswapper/0: BUG: KASAN: slab-out-of-bounds in __memset+0x84/0x188\nswapper/0: Write at addr f4ffff8005f0fdf0 by task swapper/0/1\nswapper/0: Pointer tag: [f4], memory tag: [fe]\nswapper/0:\nswapper/0: CPU: 4 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.12.\nswapper/0: Hardware name: MT6991(ENG) (DT)\nswapper/0: Call trace:\nswapper/0:  dump_backtrace+0xfc/0x17c\nswapper/0:  show_stack+0x18/0x28\nswapper/0:  dump_stack_lvl+0x40/0xa0\nswapper/0:  print_report+0x1b8/0x71c\nswapper/0:  kasan_report+0xec/0x14c\nswapper/0:  __do_kernel_fault+0x60/0x29c\nswapper/0:  do_bad_area+0x30/0xdc\nswapper/0:  do_tag_check_fault+0x20/0x34\nswapper/0:  do_mem_abort+0x58/0x104\nswapper/0:  el1_abort+0x3c/0x5c\nswapper/0:  el1h_64_sync_handler+0x80/0xcc\nswapper/0:  el1h_64_sync+0x68/0x6c\nswapper/0:  __memset+0x84/0x188\nswapper/0:  btf_populate_kfunc_set+0x280/0x3d8\nswapper/0:  __register_btf_kfunc_id_set+0x43c/0x468\nswapper/0:  register_btf_kfunc_id_set+0x48/0x60\nswapper/0:  register_nf_nat_bpf+0x1c/0x40\nswapper/0:  nf_nat_init+0xc0/0x128\nswapper/0:  do_one_initcall+0x184/0x464\nswapper/0:  do_initcall_level+0xdc/0x1b0\nswapper/0:  do_initcalls+0x70/0xc0\nswapper/0:  do_basic_setup+0x1c/0x28\nswapper/0:  kernel_init_freeable+0x144/0x1b8\nswapper/0:  kernel_init+0x20/0x1a8\nswapper/0:  ret_from_fork+0x10/0x20\n==================================================================" ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2025-05-13T00:00:00Z",
    "advisory" : "RHSA-2025:6966",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-570.12.1.el9_6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2025-05-13T00:00:00Z",
    "advisory" : "RHSA-2025:6966",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-570.12.1.el9_6"
  } ],
  "package_state" : [ {
    "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" : "Out of support scope",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Out of support scope",
    "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-2024-53097\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-53097\nhttps://lore.kernel.org/linux-cve-announce/2024112505-CVE-2024-53097-cd93@gregkh/T" ],
  "name" : "CVE-2024-53097",
  "csaw" : false
}