CVE-2025-21752

{
  "id": "CVE-2025-21752",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "02c372e1f016e5113217597ab37b399c4e407477",
              "lessThan": "1c25eff52ee5a02a2c4be659a44ae972d9989742",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "02c372e1f016e5113217597ab37b399c4e407477",
              "lessThan": "dc14ba10781bd2629835696b7cc1febf914768e9",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ab69bf6f8970c09d3735c25094e9471d54365282",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "6.6.130",
              "lessThan": "6.7",
              "versionType": "semver"
            }
          ],
          "programFiles": [
            "fs/btrfs/raid-stripe-tree.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.7"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.7",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.13.3",
              "versionType": "semver",
              "lessThanOrEqual": "6.13.*"
            },
            {
              "status": "unaffected",
              "version": "6.14",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "fs/btrfs/raid-stripe-tree.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-02-27T03:15:15.853",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/1c25eff52ee5a02a2c4be659a44ae972d9989742",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/dc14ba10781bd2629835696b7cc1febf914768e9",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: don't use btrfs_set_item_key_safe on RAID stripe-extents\n\nDon't use btrfs_set_item_key_safe() to modify the keys in the RAID\nstripe-tree, as this can lead to corruption of the tree, which is caught\nby the checks in btrfs_set_item_key_safe():\n\n BTRFS info (device nvme1n1): leaf 49168384 gen 15 total ptrs 194 free space 8329 owner 12\n BTRFS info (device nvme1n1): refs 2 lock_owner 1030 current 1030\n  [ snip ]\n  item 105 key (354549760 230 20480) itemoff 14587 itemsize 16\n                  stride 0 devid 5 physical 67502080\n  item 106 key (354631680 230 4096) itemoff 14571 itemsize 16\n                  stride 0 devid 1 physical 88559616\n  item 107 key (354631680 230 32768) itemoff 14555 itemsize 16\n                  stride 0 devid 1 physical 88555520\n  item 108 key (354717696 230 28672) itemoff 14539 itemsize 16\n                  stride 0 devid 2 physical 67604480\n  [ snip ]\n BTRFS critical (device nvme1n1): slot 106 key (354631680 230 32768) new key (354635776 230 4096)\n ------------[ cut here ]------------\n kernel BUG at fs/btrfs/ctree.c:2602!\n Oops: invalid opcode: 0000 [#1] PREEMPT SMP PTI\n CPU: 1 UID: 0 PID: 1055 Comm: fsstress Not tainted 6.13.0-rc1+ #1464\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.2-3-gd478f380-rebuilt.opensuse.org 04/01/2014\n RIP: 0010:btrfs_set_item_key_safe+0xf7/0x270\n Code: <snip>\n RSP: 0018:ffffc90001337ab0 EFLAGS: 00010287\n RAX: 0000000000000000 RBX: ffff8881115fd000 RCX: 0000000000000000\n RDX: 0000000000000001 RSI: 0000000000000001 RDI: 00000000ffffffff\n RBP: ffff888110ed6f50 R08: 00000000ffffefff R09: ffffffff8244c500\n R10: 00000000ffffefff R11: 00000000ffffffff R12: ffff888100586000\n R13: 00000000000000c9 R14: ffffc90001337b1f R15: ffff888110f23b58\n FS:  00007f7d75c72740(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 00007fa811652c60 CR3: 0000000111398001 CR4: 0000000000370eb0\n Call Trace:\n  <TASK>\n  ? __die_body.cold+0x14/0x1a\n  ? die+0x2e/0x50\n  ? do_trap+0xca/0x110\n  ? do_error_trap+0x65/0x80\n  ? btrfs_set_item_key_safe+0xf7/0x270\n  ? exc_invalid_op+0x50/0x70\n  ? btrfs_set_item_key_safe+0xf7/0x270\n  ? asm_exc_invalid_op+0x1a/0x20\n  ? btrfs_set_item_key_safe+0xf7/0x270\n  btrfs_partially_delete_raid_extent+0xc4/0xe0\n  btrfs_delete_raid_extent+0x227/0x240\n  __btrfs_free_extent.isra.0+0x57f/0x9c0\n  ? exc_coproc_segment_overrun+0x40/0x40\n  __btrfs_run_delayed_refs+0x2fa/0xe80\n  btrfs_run_delayed_refs+0x81/0xe0\n  btrfs_commit_transaction+0x2dd/0xbe0\n  ? preempt_count_add+0x52/0xb0\n  btrfs_sync_file+0x375/0x4c0\n  do_fsync+0x39/0x70\n  __x64_sys_fsync+0x13/0x20\n  do_syscall_64+0x54/0x110\n  entry_SYSCALL_64_after_hwframe+0x76/0x7e\n RIP: 0033:0x7f7d7550ef90\n Code: <snip>\n RSP: 002b:00007ffd70237248 EFLAGS: 00000202 ORIG_RAX: 000000000000004a\n RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f7d7550ef90\n RDX: 000000000000013a RSI: 000000000040eb28 RDI: 0000000000000004\n RBP: 000000000000001b R08: 0000000000000078 R09: 00007ffd7023725c\n R10: 00007f7d75400390 R11: 0000000000000202 R12: 028f5c28f5c28f5c\n R13: 8f5c28f5c28f5c29 R14: 000000000040b520 R15: 00007f7d75c726c8\n  </TASK>\n\nWhile the root cause of the tree order corruption isn't clear, using\nbtrfs_duplicate_item() to copy the item and then adjusting both the key\nand the per-device physical addresses is a safe way to counter this\nproblem."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: btrfs: no use btrfs_set_item_key_safe en extensiones de bandas RAID No use btrfs_set_item_key_safe() para modificar las claves en el árbol de bandas RAID, ya que esto puede provocar la corrupción del árbol, lo que es detectado por las comprobaciones en btrfs_set_item_key_safe(): Información de BTRFS (dispositivo nvme1n1): leaf 49168384 gen 15 total ptrs 194 free space 8329 owner 12 Información de BTRFS (dispositivo nvme1n1): refs 2 lock_owner 1030 current 1030 [ snip ] item 105 key (354549760 230 20480) itemoff 14587 itemsize 16 stride 0 devid 5 physical 67502080 elemento 106 clave (354631680 230 4096) itemoff 14571 tamaño del elemento 16 paso 0 devid 1 físico 88559616 elemento 107 clave (354631680 230 32768) itemoff 14555 tamaño del elemento 16 paso 0 devid 1 físico 88555520 elemento 108 clave (354717696 230 28672) itemoff 14539 tamaño del elemento 16 paso 0 devid 2 físico 67604480 [ snip ] BTRFS crítico (dispositivo nvme1n1): ranura 106 clave (354631680 230 32768) nueva clave (354635776 230 4096) ------------[ cortar aquí ]------------ ¡ERROR del kernel en fs/btrfs/ctree.c:2602! Oops: código de operación no válido: 0000 [#1] PREEMPT SMP PTI CPU: 1 UID: 0 PID: 1055 Comm: fsstress No contaminado 6.13.0-rc1+ #1464 Nombre del hardware: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.2-3-gd478f380-rebuilt.opensuse.org 01/04/2014 RIP: 0010:btrfs_set_item_key_safe+0xf7/0x270 Código:  RSP: 0018:ffffc90001337ab0 EFLAGS: 00010287 RAX: 000000000000000 RBX: ffff8881115fd000 RCX: 0000000000000000 RDX: 0000000000000001 RSI: 000000000000001 RDI: 000000000ffffffff RBP: ffff888110ed6f50 R08: 00000000ffffefff R09: ffffffff8244c500 R10: 00000000ffffefff R11: 00000000ffffffff R12: ffff888100586000 R13: 00000000000000c9 R14: ffffc90001337b1f R15: ffff888110f23b58 FS: 00007f7d75c72740(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa811652c60 CR3: 0000000111398001 CR4: 0000000000370eb0 Seguimiento de llamadas:  ? __die_body.cold+0x14/0x1a ? die+0x2e/0x50 ? do_trap+0xca/0x110 ? btrfs_set_item_key_safe+0xf7/0x270 ? exc_invalid_op+0x50/0x70 ? btrfs_set_item_key_safe+0xf7/0x270 ? asm_exc_invalid_op+0x1a/0x20 ? btrfs_set_item_key_safe+0xf7/0x270 btrfs_partially_delete_raid_extent+0xc4/0xe0 btrfs_delete_raid_extent+0x227/0x240 __btrfs_free_extent.isra.0+0x57f/0x9c0 ? exc_coproc_segment_overrun+0x40/0x40 __btrfs_run_delayed_refs+0x2fa/0xe80 btrfs_run_delayed_refs+0x81/0xe0 btrfs_commit_transaction+0x2dd/0xbe0 ? preempt_count_add+0x52/0xb0 btrfs_sync_file+0x375/0x4c0 do_fsync+0x39/0x70 __x64_sys_fsync+0x13/0x20 do_syscall_64+0x54/0x110 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7f7d7550ef90 Código:  RSP: 002b:00007ffd70237248 EFLAGS: 00000202 ORIG_RAX: 000000000000004a RAX: ffffffffffffffda RBX: 000000000000004 RCX: 00007f7d7550ef90 RDX: 000000000000013a RSI: 000000000040eb28 RDI: 0000000000000004 RBP: 000000000000001b R08: 0000000000000078 R09: 00007ffd7023725c R10: 00007f7d75400390 R11: 0000000000000202 R12: 028f5c28f5c28f5c R13: 8f5c28f5c28f5c29 R14: 000000000040b520 R15: 00007f7d75c726c8  Si bien la causa raíz de la corrupción del orden del árbol no está clara, usar btrfs_duplicate_item() para copiar el elemento y luego ajustar tanto la clave como las direcciones físicas por dispositivo es una forma segura de contrarrestar este problema."
    }
  ],
  "lastModified": "2026-06-17T08:44:11.443",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "941059EE-3795-4937-9F99-D94419C9010D",
              "versionEndExcluding": "6.13.3",
              "versionStartIncluding": "6.7"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}