{
  "threat_severity" : "Moderate",
  "public_date" : "2025-09-16T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: HID: intel-thc-hid: intel-thc: Fix incorrect pointer arithmetic in I2C regs save",
    "id" : "2395797",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2395797"
  },
  "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-763",
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\nHID: intel-thc-hid: intel-thc: Fix incorrect pointer arithmetic in I2C regs save\nImproper use of secondary pointer (&dev->i2c_subip_regs) caused\nkernel crash and out-of-bounds error:\nBUG: KASAN: slab-out-of-bounds in _regmap_bulk_read+0x449/0x510\nWrite of size 4 at addr ffff888136005dc0 by task kworker/u33:5/5107\nCPU: 3 UID: 0 PID: 5107 Comm: kworker/u33:5 Not tainted 6.16.0+ #3 PREEMPT(voluntary)\nWorkqueue: async async_run_entry_fn\nCall Trace:\n<TASK>\ndump_stack_lvl+0x76/0xa0\nprint_report+0xd1/0x660\n? __pfx__raw_spin_lock_irqsave+0x10/0x10\n? kasan_complete_mode_report_info+0x26/0x200\nkasan_report+0xe1/0x120\n? _regmap_bulk_read+0x449/0x510\n? _regmap_bulk_read+0x449/0x510\n__asan_report_store4_noabort+0x17/0x30\n_regmap_bulk_read+0x449/0x510\n? __pfx__regmap_bulk_read+0x10/0x10\nregmap_bulk_read+0x270/0x3d0\npio_complete+0x1ee/0x2c0 [intel_thc]\n? __pfx_pio_complete+0x10/0x10 [intel_thc]\n? __pfx_pio_wait+0x10/0x10 [intel_thc]\n? regmap_update_bits_base+0x13b/0x1f0\nthc_i2c_subip_pio_read+0x117/0x270 [intel_thc]\nthc_i2c_subip_regs_save+0xc2/0x140 [intel_thc]\n? __pfx_thc_i2c_subip_regs_save+0x10/0x10 [intel_thc]\n[...]\nThe buggy address belongs to the object at ffff888136005d00\nwhich belongs to the cache kmalloc-rnd-12-192 of size 192\nThe buggy address is located 0 bytes to the right of\nallocated 192-byte region [ffff888136005d00, ffff888136005dc0)\nReplaced with direct array indexing (&dev->i2c_subip_regs[i]) to ensure\nsafe memory access." ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "release_date" : "2026-03-09T00:00:00Z",
    "advisory" : "RHSA-2026:4012",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10.1",
    "package" : "kernel-0:6.12.0-124.43.1.el10_1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2026-03-17T00:00:00Z",
    "advisory" : "RHSA-2026:4759",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-611.41.1.el9_7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2026-03-17T00:00:00Z",
    "advisory" : "RHSA-2026:4759",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-611.41.1.el9_7"
  } ],
  "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" : "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" : "Not affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2025-39818\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-39818\nhttps://lore.kernel.org/linux-cve-announce/2025091615-CVE-2025-39818-f1b9@gregkh/T" ],
  "name" : "CVE-2025-39818",
  "csaw" : false
}