{
  "cveId": "CVE-2025-71139",
  "url": "https://patchblox.com/security/cve/CVE-2025-71139",
  "summary": "CVE-2025-71139 is fixed in linux on 1 platform by DEBIAN-CVE-2025-71139 (version 6.18.5-1), released January 14, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  kernel/kexec: fix IMA when allocation happens in...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  kernel/kexec: fix IMA when allocation happens in CMA area  *** Bug description ***  When I tested kexec with the latest kernel, I ran into the following warning:  [   40.712410] ------------[ cut here ]------------ [   40.712576] WARNING: CPU: 2 PID: 1562 at kernel/kexec_core.c:1001 kimage_map_segment\u002B0x144/0x198 [...] [   40.816047] Call trace: [   40.818498]  kimage_map_segment\u002B0x144/0x198 (P) [   40.823221]  ima_kexec_post_load\u002B0x58/0xc0 [   40.827246]  __do_sys_kexec_file_load\u002B0x29c/0x368 [...] [   40.855423] ---[ end trace 0000000000000000 ]---  *** How to reproduce ***  This bug is only triggered when the kexec target address is allocated in the CMA area. If no CMA area is reserved in the kernel, use the \u0022cma=\u0022 option in the kernel command line to reserve one.  *** Root cause *** The commit 07d24902977e (\u0022kexec: enable CMA based contiguous allocation\u0022) allocates the kexec target address directly on the CMA area to avoid copying during the jump. In this case, there is no IND_SOURCE for the kexec segment.  But the current implementation of kimage_map_segment() assumes that IND_SOURCE pages exist and map them into a contiguous virtual address by vmap().  *** Solution *** If IMA segment is allocated in the CMA area, use its page_address() directly.",
  "published": "2026-01-14T15:16:03Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00119,
  "epssPercentile": 0.01761,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.18.5-1",
      "fix": "DEBIAN-CVE-2025-71139",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-71139",
      "released": "2026-01-14T15:16:03Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T19:38:12Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}