{
  "cveId": "CVE-2025-39974",
  "url": "https://patchblox.com/security/cve/CVE-2025-39974",
  "summary": "CVE-2025-39974 is fixed in linux on 1 platform by DEBIAN-CVE-2025-39974 (version 6.16.10-1), released October 15, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  tracing/osnoise: Fix slab-out-of-bounds in _pars...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  tracing/osnoise: Fix slab-out-of-bounds in _parse_integer_limit()  When config osnoise cpus by write() syscall, the following KASAN splat may be observed:  BUG: KASAN: slab-out-of-bounds in _parse_integer_limit\u002B0x103/0x130 Read of size 1 at addr ffff88810121e3a1 by task test/447 CPU: 1 UID: 0 PID: 447 Comm: test Not tainted 6.17.0-rc6-dirty #288 PREEMPT(voluntary) Hardware name: QEMU Standard PC (i440FX \u002B PIIX, 1996), BIOS 1.15.0-1 04/01/2014 Call Trace:  \u003CTASK\u003E  dump_stack_lvl\u002B0x55/0x70  print_report\u002B0xcb/0x610  kasan_report\u002B0xb8/0xf0  _parse_integer_limit\u002B0x103/0x130  bitmap_parselist\u002B0x16d/0x6f0  osnoise_cpus_write\u002B0x116/0x2d0  vfs_write\u002B0x21e/0xcc0  ksys_write\u002B0xee/0x1c0  do_syscall_64\u002B0xa8/0x2a0  entry_SYSCALL_64_after_hwframe\u002B0x77/0x7f  \u003C/TASK\u003E  This issue can be reproduced by below code:  const char *cpulist = \u00221\u0022; int fd=open(\u0022/sys/kernel/debug/tracing/osnoise/cpus\u0022, O_WRONLY); write(fd, cpulist, strlen(cpulist));  Function bitmap_parselist() was called to parse cpulist, it require that the parameter \u0027buf\u0027 must be terminated with a \u0027\\0\u0027 or \u0027\\n\u0027. Fix this issue by adding a \u0027\\0\u0027 to \u0027buf\u0027 in osnoise_cpus_write().",
  "published": "2025-10-15T08:15:35Z",
  "severity": "",
  "epss": 0.00184,
  "epssPercentile": 0.0805,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.16.10-1",
      "fix": "DEBIAN-CVE-2025-39974",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-39974",
      "released": "2025-10-15T08:15:35Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}