{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2025-21953",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-21953",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2025-04-01T15:46:54.712Z",
    "updatedAt": "2026-05-11T21:09:44.295Z",
    "importedAt": "2026-10-24T01:57:29.455Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "net: mana: cleanup mana struct after debugfs_remove()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mana: cleanup mana struct after debugfs_remove()\n\nWhen on a MANA VM hibernation is triggered, as part of hibernate_snapshot(),\nmana_gd_suspend() and mana_gd_resume() are called. If during this\nmana_gd_resume(), a failure occurs with HWC creation, mana_port_debugfs\npointer does not get reinitialized and ends up pointing to older,\ncleaned-up dentry.\nFurther in the hibernation path, as part of power_down(), mana_gd_shutdown()\nis triggered. This call, unaware of the failures in resume, tries to cleanup\nthe already cleaned up  mana_port_debugfs value and hits the following bug:\n\n[  191.359296] mana 7870:00:00.0: Shutdown was called\n[  191.359918] BUG: kernel NULL pointer dereference, address: 0000000000000098\n[  191.360584] #PF: supervisor write access in kernel mode\n[  191.361125] #PF: error_code(0x0002) - not-present page\n[  191.361727] PGD 1080ea067 P4D 0\n[  191.362172] Oops: Oops: 0002 [#1] SMP NOPTI\n[  191.362606] CPU: 11 UID: 0 PID: 1674 Comm: bash Not tainted 6.14.0-rc5+ #2\n[  191.363292] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.1 11/21/2024\n[  191.364124] RIP: 0010:down_write+0x19/0x50\n[  191.364537] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 55 48 89 e5 53 48 89 fb e8 de cd ff ff 31 c0 ba 01 00 00 00 <f0> 48 0f b1 13 75 16 65 48 8b 05 88 24 4c 6a 48 89 43 08 48 8b 5d\n[  191.365867] RSP: 0000:ff45fbe0c1c037b8 EFLAGS: 00010246\n[  191.366350] RAX: 0000000000000000 RBX: 0000000000000098 RCX: ffffff8100000000\n[  191.366951] RDX: 0000000000000001 RSI: 0000000000000064 RDI: 0000000000000098\n[  191.367600] RBP: ff45fbe0c1c037c0 R08: 0000000000000000 R09: 0000000000000001\n[  191.368225] R10: ff45fbe0d2b01000 R11: 0000000000000008 R12: 0000000000000000\n[  191.368874] R13: 000000000000000b R14: ff43dc27509d67c0 R15: 0000000000000020\n[  191.369549] FS:  00007dbc5001e740(0000) GS:ff43dc663f380000(0000) knlGS:0000000000000000\n[  191.370213] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  191.370830] CR2: 0000000000000098 CR3: 0000000168e8e002 CR4: 0000000000b73ef0\n[  191.371557] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[  191.372192] DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400\n[  191.372906] Call Trace:\n[  191.373262]  <TASK>\n[  191.373621]  ? show_regs+0x64/0x70\n[  191.374040]  ? __die+0x24/0x70\n[  191.374468]  ? page_fault_oops+0x290/0x5b0\n[  191.374875]  ? do_user_addr_fault+0x448/0x800\n[  191.375357]  ? exc_page_fault+0x7a/0x160\n[  191.375971]  ? asm_exc_page_fault+0x27/0x30\n[  191.376416]  ? down_write+0x19/0x50\n[  191.376832]  ? down_write+0x12/0x50\n[  191.377232]  simple_recursive_removal+0x4a/0x2a0\n[  191.377679]  ? __pfx_remove_one+0x10/0x10\n[  191.378088]  debugfs_remove+0x44/0x70\n[  191.378530]  mana_detach+0x17c/0x4f0\n[  191.378950]  ? __flush_work+0x1e2/0x3b0\n[  191.379362]  ? __cond_resched+0x1a/0x50\n[  191.379787]  mana_remove+0xf2/0x1a0\n[  191.380193]  mana_gd_shutdown+0x3b/0x70\n[  191.380642]  pci_device_shutdown+0x3a/0x80\n[  191.381063]  device_shutdown+0x13e/0x230\n[  191.381480]  kernel_power_off+0x35/0x80\n[  191.381890]  hibernate+0x3c6/0x470\n[  191.382312]  state_store+0xcb/0xd0\n[  191.382734]  kobj_attr_store+0x12/0x30\n[  191.383211]  sysfs_kf_write+0x3e/0x50\n[  191.383640]  kernfs_fop_write_iter+0x140/0x1d0\n[  191.384106]  vfs_write+0x271/0x440\n[  191.384521]  ksys_write+0x72/0xf0\n[  191.384924]  __x64_sys_write+0x19/0x20\n[  191.385313]  x64_sys_call+0x2b0/0x20b0\n[  191.385736]  do_syscall_64+0x79/0x150\n[  191.386146]  ? __mod_memcg_lruvec_state+0xe7/0x240\n[  191.386676]  ? __lruvec_stat_mod_folio+0x79/0xb0\n[  191.387124]  ? __pfx_lru_add+0x10/0x10\n[  191.387515]  ? queued_spin_unlock+0x9/0x10\n[  191.387937]  ? do_anonymous_page+0x33c/0xa00\n[  191.388374]  ? __handle_mm_fault+0xcf3/0x1210\n[  191.388805]  ? __count_memcg_events+0xbe/0x180\n[  191.389235]  ? handle_mm_fault+0xae/0x300\n[  19\n---truncated---",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "6607c17c6c5e029da03a90085db22daf518232bf",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a1466112fb6e819261272ad75e7db750a43b78bf"
            },
            {
              "version": "6607c17c6c5e029da03a90085db22daf518232bf",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3e64bb2ae7d9f2b3a8259d4d6b86ed1984d5460a"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.13",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.13"
            },
            {
              "version": "6.13.8",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.13.*"
            },
            {
              "version": "6.14",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}