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CVE-2023-52560 (GCVE-0-2023-52560)

Vulnerability from cvelistv5 – Published: 2024-03-02 21:59 – Updated: 2026-05-11 19:29
VLAI
Title
mm/damon/vaddr-test: fix memory leak in damon_do_test_apply_three_regions()
Summary
In the Linux kernel, the following vulnerability has been resolved: mm/damon/vaddr-test: fix memory leak in damon_do_test_apply_three_regions() When CONFIG_DAMON_VADDR_KUNIT_TEST=y and making CONFIG_DEBUG_KMEMLEAK=y and CONFIG_DEBUG_KMEMLEAK_AUTO_SCAN=y, the below memory leak is detected. Since commit 9f86d624292c ("mm/damon/vaddr-test: remove unnecessary variables"), the damon_destroy_ctx() is removed, but still call damon_new_target() and damon_new_region(), the damon_region which is allocated by kmem_cache_alloc() in damon_new_region() and the damon_target which is allocated by kmalloc in damon_new_target() are not freed. And the damon_region which is allocated in damon_new_region() in damon_set_regions() is also not freed. So use damon_destroy_target to free all the damon_regions and damon_target. unreferenced object 0xffff888107c9a940 (size 64): comm "kunit_try_catch", pid 1069, jiffies 4294670592 (age 732.761s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 06 00 00 00 6b 6b 6b 6b ............kkkk 60 c7 9c 07 81 88 ff ff f8 cb 9c 07 81 88 ff ff `............... backtrace: [<ffffffff817e0167>] kmalloc_trace+0x27/0xa0 [<ffffffff819c11cf>] damon_new_target+0x3f/0x1b0 [<ffffffff819c7d55>] damon_do_test_apply_three_regions.constprop.0+0x95/0x3e0 [<ffffffff819c82be>] damon_test_apply_three_regions1+0x21e/0x260 [<ffffffff829fce6a>] kunit_generic_run_threadfn_adapter+0x4a/0x90 [<ffffffff81237cf6>] kthread+0x2b6/0x380 [<ffffffff81097add>] ret_from_fork+0x2d/0x70 [<ffffffff81003791>] ret_from_fork_asm+0x11/0x20 unreferenced object 0xffff8881079cc740 (size 56): comm "kunit_try_catch", pid 1069, jiffies 4294670592 (age 732.761s) hex dump (first 32 bytes): 05 00 00 00 00 00 00 00 14 00 00 00 00 00 00 00 ................ 6b 6b 6b 6b 6b 6b 6b 6b 00 00 00 00 6b 6b 6b 6b kkkkkkkk....kkkk backtrace: [<ffffffff819bc492>] damon_new_region+0x22/0x1c0 [<ffffffff819c7d91>] damon_do_test_apply_three_regions.constprop.0+0xd1/0x3e0 [<ffffffff819c82be>] damon_test_apply_three_regions1+0x21e/0x260 [<ffffffff829fce6a>] kunit_generic_run_threadfn_adapter+0x4a/0x90 [<ffffffff81237cf6>] kthread+0x2b6/0x380 [<ffffffff81097add>] ret_from_fork+0x2d/0x70 [<ffffffff81003791>] ret_from_fork_asm+0x11/0x20 unreferenced object 0xffff888107c9ac40 (size 64): comm "kunit_try_catch", pid 1071, jiffies 4294670595 (age 732.843s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 06 00 00 00 6b 6b 6b 6b ............kkkk a0 cc 9c 07 81 88 ff ff 78 a1 76 07 81 88 ff ff ........x.v..... backtrace: [<ffffffff817e0167>] kmalloc_trace+0x27/0xa0 [<ffffffff819c11cf>] damon_new_target+0x3f/0x1b0 [<ffffffff819c7d55>] damon_do_test_apply_three_regions.constprop.0+0x95/0x3e0 [<ffffffff819c851e>] damon_test_apply_three_regions2+0x21e/0x260 [<ffffffff829fce6a>] kunit_generic_run_threadfn_adapter+0x4a/0x90 [<ffffffff81237cf6>] kthread+0x2b6/0x380 [<ffffffff81097add>] ret_from_fork+0x2d/0x70 [<ffffffff81003791>] ret_from_fork_asm+0x11/0x20 unreferenced object 0xffff8881079ccc80 (size 56): comm "kunit_try_catch", pid 1071, jiffies 4294670595 (age 732.843s) hex dump (first 32 bytes): 05 00 00 00 00 00 00 00 14 00 00 00 00 00 00 00 ................ 6b 6b 6b 6b 6b 6b 6b 6b 00 00 00 00 6b 6b 6b 6b kkkkkkkk....kkkk backtrace: [<ffffffff819bc492>] damon_new_region+0x22/0x1c0 [<ffffffff819c7d91>] damon_do_test_apply_three_regions.constprop.0+0xd1/0x3e0 [<ffffffff819c851e>] damon_test_apply_three_regions2+0x21e/0x260 [<ffffffff829fce6a>] kunit_generic_run_threadfn_adapter+0x4a/0x90 [<ffffffff81237cf6>] kthread+0x2b6/0x380 [<ffffffff81097add>] ret_from_fork+0x2d/0x70 [<ffff ---truncated---
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-03-04 15:35 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 9f86d624292c238203b3687cdb870a2cde1a6f9b , < 9a4fe81a8644b717d57d81ce5849e16583b13fe8 (git)
Affected: 9f86d624292c238203b3687cdb870a2cde1a6f9b , < 6b522001693aa113d97a985abc5f6932972e8e86 (git)
Affected: 9f86d624292c238203b3687cdb870a2cde1a6f9b , < 45120b15743fa7c0aa53d5db6dfb4c8f87be4abd (git)
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Linux Linux Affected: 5.16
Unaffected: 0 , < 5.16 (semver)
Unaffected: 6.1.56 , ≤ 6.1.* (semver)
Unaffected: 6.5.6 , ≤ 6.5.* (semver)
Unaffected: 6.6 , ≤ * (original_commit_for_fix)
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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/vaddr-test: fix memory leak in damon_do_test_apply_three_regions()\n\nWhen CONFIG_DAMON_VADDR_KUNIT_TEST=y and making CONFIG_DEBUG_KMEMLEAK=y\nand CONFIG_DEBUG_KMEMLEAK_AUTO_SCAN=y, the below memory leak is detected.\n\nSince commit 9f86d624292c (\"mm/damon/vaddr-test: remove unnecessary\nvariables\"), the damon_destroy_ctx() is removed, but still call\ndamon_new_target() and damon_new_region(), the damon_region which is\nallocated by kmem_cache_alloc() in damon_new_region() and the damon_target\nwhich is allocated by kmalloc in damon_new_target() are not freed.  And\nthe damon_region which is allocated in damon_new_region() in\ndamon_set_regions() is also not freed.\n\nSo use damon_destroy_target to free all the damon_regions and damon_target.\n\n    unreferenced object 0xffff888107c9a940 (size 64):\n      comm \"kunit_try_catch\", pid 1069, jiffies 4294670592 (age 732.761s)\n      hex dump (first 32 bytes):\n        00 00 00 00 00 00 00 00 06 00 00 00 6b 6b 6b 6b  ............kkkk\n        60 c7 9c 07 81 88 ff ff f8 cb 9c 07 81 88 ff ff  `...............\n      backtrace:\n        [\u003cffffffff817e0167\u003e] kmalloc_trace+0x27/0xa0\n        [\u003cffffffff819c11cf\u003e] damon_new_target+0x3f/0x1b0\n        [\u003cffffffff819c7d55\u003e] damon_do_test_apply_three_regions.constprop.0+0x95/0x3e0\n        [\u003cffffffff819c82be\u003e] damon_test_apply_three_regions1+0x21e/0x260\n        [\u003cffffffff829fce6a\u003e] kunit_generic_run_threadfn_adapter+0x4a/0x90\n        [\u003cffffffff81237cf6\u003e] kthread+0x2b6/0x380\n        [\u003cffffffff81097add\u003e] ret_from_fork+0x2d/0x70\n        [\u003cffffffff81003791\u003e] ret_from_fork_asm+0x11/0x20\n    unreferenced object 0xffff8881079cc740 (size 56):\n      comm \"kunit_try_catch\", pid 1069, jiffies 4294670592 (age 732.761s)\n      hex dump (first 32 bytes):\n        05 00 00 00 00 00 00 00 14 00 00 00 00 00 00 00  ................\n        6b 6b 6b 6b 6b 6b 6b 6b 00 00 00 00 6b 6b 6b 6b  kkkkkkkk....kkkk\n      backtrace:\n        [\u003cffffffff819bc492\u003e] damon_new_region+0x22/0x1c0\n        [\u003cffffffff819c7d91\u003e] damon_do_test_apply_three_regions.constprop.0+0xd1/0x3e0\n        [\u003cffffffff819c82be\u003e] damon_test_apply_three_regions1+0x21e/0x260\n        [\u003cffffffff829fce6a\u003e] kunit_generic_run_threadfn_adapter+0x4a/0x90\n        [\u003cffffffff81237cf6\u003e] kthread+0x2b6/0x380\n        [\u003cffffffff81097add\u003e] ret_from_fork+0x2d/0x70\n        [\u003cffffffff81003791\u003e] ret_from_fork_asm+0x11/0x20\n    unreferenced object 0xffff888107c9ac40 (size 64):\n      comm \"kunit_try_catch\", pid 1071, jiffies 4294670595 (age 732.843s)\n      hex dump (first 32 bytes):\n        00 00 00 00 00 00 00 00 06 00 00 00 6b 6b 6b 6b  ............kkkk\n        a0 cc 9c 07 81 88 ff ff 78 a1 76 07 81 88 ff ff  ........x.v.....\n      backtrace:\n        [\u003cffffffff817e0167\u003e] kmalloc_trace+0x27/0xa0\n        [\u003cffffffff819c11cf\u003e] damon_new_target+0x3f/0x1b0\n        [\u003cffffffff819c7d55\u003e] damon_do_test_apply_three_regions.constprop.0+0x95/0x3e0\n        [\u003cffffffff819c851e\u003e] damon_test_apply_three_regions2+0x21e/0x260\n        [\u003cffffffff829fce6a\u003e] kunit_generic_run_threadfn_adapter+0x4a/0x90\n        [\u003cffffffff81237cf6\u003e] kthread+0x2b6/0x380\n        [\u003cffffffff81097add\u003e] ret_from_fork+0x2d/0x70\n        [\u003cffffffff81003791\u003e] ret_from_fork_asm+0x11/0x20\n    unreferenced object 0xffff8881079ccc80 (size 56):\n      comm \"kunit_try_catch\", pid 1071, jiffies 4294670595 (age 732.843s)\n      hex dump (first 32 bytes):\n        05 00 00 00 00 00 00 00 14 00 00 00 00 00 00 00  ................\n        6b 6b 6b 6b 6b 6b 6b 6b 00 00 00 00 6b 6b 6b 6b  kkkkkkkk....kkkk\n      backtrace:\n        [\u003cffffffff819bc492\u003e] damon_new_region+0x22/0x1c0\n        [\u003cffffffff819c7d91\u003e] damon_do_test_apply_three_regions.constprop.0+0xd1/0x3e0\n        [\u003cffffffff819c851e\u003e] damon_test_apply_three_regions2+0x21e/0x260\n        [\u003cffffffff829fce6a\u003e] kunit_generic_run_threadfn_adapter+0x4a/0x90\n        [\u003cffffffff81237cf6\u003e] kthread+0x2b6/0x380\n        [\u003cffffffff81097add\u003e] ret_from_fork+0x2d/0x70\n        [\u003cffff\n---truncated---"
        },
        {
          "lang": "es",
          "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: mm/damon/vaddr-test: corrige la p\u00e9rdida de memoria en damon_do_test_apply_tres_regions() Cuando CONFIG_DAMON_VADDR_KUNIT_TEST=y y se hace CONFIG_DEBUG_KMEMLEAK=y y CONFIG_DEBUG_KMEMLEAK_AUTO_SCAN=y, se detecta la siguiente p\u00e9rdida de memoria. Desde el commit 9f86d624292c (\"mm/damon/vaddr-test: eliminar variables innecesarias\"), damon_destroy_ctx() se elimina, pero a\u00fan se llama a damon_new_target() y damon_new_region(), la damon_region asignada por kmem_cache_alloc() en damon_new_region() y el damon_target asignado por kmalloc en damon_new_target() no se libera. Y el damon_region que est\u00e1 asignado en damon_new_region() en damon_set_regions() tampoco se libera. Entonces use damon_destroy_target para liberar todos los damon_regions y damon_target. objeto sin referencia 0xffff888107c9a940 (tama\u00f1o 64): comm \"kunit_try_catch\", pid 1069, jiffies 4294670592 (edad 732,761 s) volcado hexadecimal (primeros 32 bytes): 00 00 00 00 00 00 00 00 06 00 00 00 6b 6b 6b 6b... .........kkkk 60 c7 9c 07 81 88 ff ff f8 cb 9c 07 81 88 ff ff `................. backtrace: [] kmalloc_trace +0x27/0xa0 [] damon_new_target+0x3f/0x1b0 [] damon_do_test_apply_tres_regiones.constprop.0+0x95/0x3e0 [] damon_test_apply_tres_regiones1+0x21e/ 0x260 [] kunit_generic_run_threadfn_adapter+0x4a/0x90 [\u0026lt; ffffffff81237cf6\u0026gt;] kthread+0x2b6/0x380 [] ret_from_fork+0x2d/0x70 [] ret_from_fork_asm+0x11/0x20 objeto sin referencia 0xffff8881079cc740 (tama\u00f1o 56): comm \"kunit_try_catch\", pid 1069, santiam\u00e9n 4294670592 (edad 732,761 s ) volcado hexadecimal (primeros 32 bytes): 05 00 00 00 00 00 00 00 14 00 00 00 00 00 00 00 ................ 6b 6b 6b 6b 6b 6b 6b 6b 00 00 00 00 6b 6b 6b 6b kkkkkkkk....kkkk retroceso: [] damon_new_region+0x22/0x1c0 [] damon_do_test_apply_tres_regiones.constprop.0+0xd1/0x3e0 [] damon_test_apply_tres_regiones1+0x21e/0x260 [ ] kunit_generic_run_threadfn_adapter+0x4a/0x90 [] kthread+0x2b6/0x380 [] ret_from_fork+0x2d/0x70 [] ret_from_ fork_asm+0x11/0x20 objeto sin referencia 0xffff888107c9ac40 (tama\u00f1o 64): comm \"kunit_try_catch \", pid 1071, santiam\u00e9n 4294670595 (edad 732,843 s) volcado hexadecimal (primeros 32 bytes): 00 00 00 00 00 00 00 00 06 00 00 00 6b 6b 6b 6b ............kkkk a0 cc 9c 07 81 88 ff ff 78 a1 76 07 81 88 ff ff ........xv.... rastreo: [] kmalloc_trace+0x27/0xa0 [] damon_new_target+0x3f/0x1b0 [] damon_do_test_apply_tres_regiones.constprop.0+0x95/0x3e0 [] damon_test_apply_tres_regiones2+0x21e/0x260 [] kunit_generic_run_threadfn_adapter+0x4 a/0x90 [] kthread+0x2b6/0x380 [] ret_from_fork +0x2d/0x70 [] ret_from_fork_asm+0x11/0x20 objeto sin referencia 0xffff8881079ccc80 (tama\u00f1o 56): comm \"kunit_try_catch\", pid 1071, jiffies 4294670595 (edad 732.843 s) volcado hexadecimal (primero 32 bytes): 05 00 00 00 00 00 00 00 14 00 00 00 00 00 00 00 ................ 6b 6b 6b 6b 6b 6b 6b 6b 00 00 00 00 6b 6b 6b 6b kkkkkkkk....kkkk retroceso : [] damon_new_region+0x22/0x1c0 [] damon_do_test_apply_tres_regiones.constprop.0+0xd1/0x3e0 [] damon_test_apply_tres_regiones2+0x21e/0x260 [] kunit_generic_run_threadfn_adapter+0x4a/0x90 [] kthread+0x2b6/0x380 [] ret_from_fork+0x2d/0x70 ["
        }
      ],
      "id": "CVE-2023-52560",
      "lastModified": "2024-12-11T15:24:15.463",
      "metrics": {
        "cvssMetricV31": [
          {
            "cvssData": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 5.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            },
            "exploitabilityScore": 1.8,
            "impactScore": 3.6,
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      },
      "published": "2024-03-02T22:15:48.750",
      "references": [
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/45120b15743fa7c0aa53d5db6dfb4c8f87be4abd"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/6b522001693aa113d97a985abc5f6932972e8e86"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/9a4fe81a8644b717d57d81ce5849e16583b13fe8"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/45120b15743fa7c0aa53d5db6dfb4c8f87be4abd"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/6b522001693aa113d97a985abc5f6932972e8e86"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch"
          ],
          "url": "https://git.kernel.org/stable/c/9a4fe81a8644b717d57d81ce5849e16583b13fe8"
        }
      ],
      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Analyzed",
      "weaknesses": [
        {
          "description": [
            {
              "lang": "en",
              "value": "CWE-401"
            }
          ],
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ]
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "mm/damon/vaddr-test.h"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "9a4fe81a8644b717d57d81ce5849e16583b13fe8",
                    "status": "affected",
                    "version": "9f86d624292c238203b3687cdb870a2cde1a6f9b",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "6b522001693aa113d97a985abc5f6932972e8e86",
                    "status": "affected",
                    "version": "9f86d624292c238203b3687cdb870a2cde1a6f9b",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "45120b15743fa7c0aa53d5db6dfb4c8f87be4abd",
                    "status": "affected",
                    "version": "9f86d624292c238203b3687cdb870a2cde1a6f9b",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "mm/damon/vaddr-test.h"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "5.16"
                  },
                  {
                    "lessThan": "5.16",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.1.*",
                    "status": "unaffected",
                    "version": "6.1.56",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.5.*",
                    "status": "unaffected",
                    "version": "6.5.6",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "6.6",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "5EA89569-DD45-4A69-BB4D-8356FA9386BD",
                    "versionEndExcluding": "6.1.56",
                    "versionStartIncluding": "5.16",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "870FC772-173A-4A0F-B1AF-7976AD6057D3",
                    "versionEndExcluding": "6.5.6",
                    "versionStartIncluding": "6.2",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.6:rc1:*:*:*:*:*:*",
                    "matchCriteriaId": "84267A4F-DBC2-444F-B41D-69E15E1BEC97",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.6:rc2:*:*:*:*:*:*",
                    "matchCriteriaId": "FB440208-241C-4246-9A83-C1715C0DAA6C",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.6:rc3:*:*:*:*:*:*",
                    "matchCriteriaId": "0DC421F1-3D5A-4BEF-BF76-4E468985D20B",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/vaddr-test: fix memory leak in damon_do_test_apply_three_regions()\n\nWhen CONFIG_DAMON_VADDR_KUNIT_TEST=y and making CONFIG_DEBUG_KMEMLEAK=y\nand CONFIG_DEBUG_KMEMLEAK_AUTO_SCAN=y, the below memory leak is detected.\n\nSince commit 9f86d624292c (\"mm/damon/vaddr-test: remove unnecessary\nvariables\"), the damon_destroy_ctx() is removed, but still call\ndamon_new_target() and damon_new_region(), the damon_region which is\nallocated by kmem_cache_alloc() in damon_new_region() and the damon_target\nwhich is allocated by kmalloc in damon_new_target() are not freed.  And\nthe damon_region which is allocated in damon_new_region() in\ndamon_set_regions() is also not freed.\n\nSo use damon_destroy_target to free all the damon_regions and damon_target.\n\n    unreferenced object 0xffff888107c9a940 (size 64):\n      comm \"kunit_try_catch\", pid 1069, jiffies 4294670592 (age 732.761s)\n      hex dump (first 32 bytes):\n        00 00 00 00 00 00 00 00 06 00 00 00 6b 6b 6b 6b  ............kkkk\n        60 c7 9c 07 81 88 ff ff f8 cb 9c 07 81 88 ff ff  `...............\n      backtrace:\n        [\u003cffffffff817e0167\u003e] kmalloc_trace+0x27/0xa0\n        [\u003cffffffff819c11cf\u003e] damon_new_target+0x3f/0x1b0\n        [\u003cffffffff819c7d55\u003e] damon_do_test_apply_three_regions.constprop.0+0x95/0x3e0\n        [\u003cffffffff819c82be\u003e] damon_test_apply_three_regions1+0x21e/0x260\n        [\u003cffffffff829fce6a\u003e] kunit_generic_run_threadfn_adapter+0x4a/0x90\n        [\u003cffffffff81237cf6\u003e] kthread+0x2b6/0x380\n        [\u003cffffffff81097add\u003e] ret_from_fork+0x2d/0x70\n        [\u003cffffffff81003791\u003e] ret_from_fork_asm+0x11/0x20\n    unreferenced object 0xffff8881079cc740 (size 56):\n      comm \"kunit_try_catch\", pid 1069, jiffies 4294670592 (age 732.761s)\n      hex dump (first 32 bytes):\n        05 00 00 00 00 00 00 00 14 00 00 00 00 00 00 00  ................\n        6b 6b 6b 6b 6b 6b 6b 6b 00 00 00 00 6b 6b 6b 6b  kkkkkkkk....kkkk\n      backtrace:\n        [\u003cffffffff819bc492\u003e] damon_new_region+0x22/0x1c0\n        [\u003cffffffff819c7d91\u003e] damon_do_test_apply_three_regions.constprop.0+0xd1/0x3e0\n        [\u003cffffffff819c82be\u003e] damon_test_apply_three_regions1+0x21e/0x260\n        [\u003cffffffff829fce6a\u003e] kunit_generic_run_threadfn_adapter+0x4a/0x90\n        [\u003cffffffff81237cf6\u003e] kthread+0x2b6/0x380\n        [\u003cffffffff81097add\u003e] ret_from_fork+0x2d/0x70\n        [\u003cffffffff81003791\u003e] ret_from_fork_asm+0x11/0x20\n    unreferenced object 0xffff888107c9ac40 (size 64):\n      comm \"kunit_try_catch\", pid 1071, jiffies 4294670595 (age 732.843s)\n      hex dump (first 32 bytes):\n        00 00 00 00 00 00 00 00 06 00 00 00 6b 6b 6b 6b  ............kkkk\n        a0 cc 9c 07 81 88 ff ff 78 a1 76 07 81 88 ff ff  ........x.v.....\n      backtrace:\n        [\u003cffffffff817e0167\u003e] kmalloc_trace+0x27/0xa0\n        [\u003cffffffff819c11cf\u003e] damon_new_target+0x3f/0x1b0\n        [\u003cffffffff819c7d55\u003e] damon_do_test_apply_three_regions.constprop.0+0x95/0x3e0\n        [\u003cffffffff819c851e\u003e] damon_test_apply_three_regions2+0x21e/0x260\n        [\u003cffffffff829fce6a\u003e] kunit_generic_run_threadfn_adapter+0x4a/0x90\n        [\u003cffffffff81237cf6\u003e] kthread+0x2b6/0x380\n        [\u003cffffffff81097add\u003e] ret_from_fork+0x2d/0x70\n        [\u003cffffffff81003791\u003e] ret_from_fork_asm+0x11/0x20\n    unreferenced object 0xffff8881079ccc80 (size 56):\n      comm \"kunit_try_catch\", pid 1071, jiffies 4294670595 (age 732.843s)\n      hex dump (first 32 bytes):\n        05 00 00 00 00 00 00 00 14 00 00 00 00 00 00 00  ................\n        6b 6b 6b 6b 6b 6b 6b 6b 00 00 00 00 6b 6b 6b 6b  kkkkkkkk....kkkk\n      backtrace:\n        [\u003cffffffff819bc492\u003e] damon_new_region+0x22/0x1c0\n        [\u003cffffffff819c7d91\u003e] damon_do_test_apply_three_regions.constprop.0+0xd1/0x3e0\n        [\u003cffffffff819c851e\u003e] damon_test_apply_three_regions2+0x21e/0x260\n        [\u003cffffffff829fce6a\u003e] kunit_generic_run_threadfn_adapter+0x4a/0x90\n        [\u003cffffffff81237cf6\u003e] kthread+0x2b6/0x380\n        [\u003cffffffff81097add\u003e] ret_from_fork+0x2d/0x70\n        [\u003cffff\n---truncated---"
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: mm/damon/vaddr-test: corrige la p\u00e9rdida de memoria en damon_do_test_apply_tres_regions() Cuando CONFIG_DAMON_VADDR_KUNIT_TEST=y y se hace CONFIG_DEBUG_KMEMLEAK=y y CONFIG_DEBUG_KMEMLEAK_AUTO_SCAN=y, se detecta la siguiente p\u00e9rdida de memoria. Desde el commit 9f86d624292c (\"mm/damon/vaddr-test: eliminar variables innecesarias\"), damon_destroy_ctx() se elimina, pero a\u00fan se llama a damon_new_target() y damon_new_region(), la damon_region asignada por kmem_cache_alloc() en damon_new_region() y el damon_target asignado por kmalloc en damon_new_target() no se libera. Y el damon_region que est\u00e1 asignado en damon_new_region() en damon_set_regions() tampoco se libera. Entonces use damon_destroy_target para liberar todos los damon_regions y damon_target. objeto sin referencia 0xffff888107c9a940 (tama\u00f1o 64): comm \"kunit_try_catch\", pid 1069, jiffies 4294670592 (edad 732,761 s) volcado hexadecimal (primeros 32 bytes): 00 00 00 00 00 00 00 00 06 00 00 00 6b 6b 6b 6b... .........kkkk 60 c7 9c 07 81 88 ff ff f8 cb 9c 07 81 88 ff ff `................. backtrace: [] kmalloc_trace +0x27/0xa0 [] damon_new_target+0x3f/0x1b0 [] damon_do_test_apply_tres_regiones.constprop.0+0x95/0x3e0 [] damon_test_apply_tres_regiones1+0x21e/ 0x260 [] kunit_generic_run_threadfn_adapter+0x4a/0x90 [\u0026lt; ffffffff81237cf6\u0026gt;] kthread+0x2b6/0x380 [] ret_from_fork+0x2d/0x70 [] ret_from_fork_asm+0x11/0x20 objeto sin referencia 0xffff8881079cc740 (tama\u00f1o 56): comm \"kunit_try_catch\", pid 1069, santiam\u00e9n 4294670592 (edad 732,761 s ) volcado hexadecimal (primeros 32 bytes): 05 00 00 00 00 00 00 00 14 00 00 00 00 00 00 00 ................ 6b 6b 6b 6b 6b 6b 6b 6b 00 00 00 00 6b 6b 6b 6b kkkkkkkk....kkkk retroceso: [] damon_new_region+0x22/0x1c0 [] damon_do_test_apply_tres_regiones.constprop.0+0xd1/0x3e0 [] damon_test_apply_tres_regiones1+0x21e/0x260 [ ] kunit_generic_run_threadfn_adapter+0x4a/0x90 [] kthread+0x2b6/0x380 [] ret_from_fork+0x2d/0x70 [] ret_from_ fork_asm+0x11/0x20 objeto sin referencia 0xffff888107c9ac40 (tama\u00f1o 64): comm \"kunit_try_catch \", pid 1071, santiam\u00e9n 4294670595 (edad 732,843 s) volcado hexadecimal (primeros 32 bytes): 00 00 00 00 00 00 00 00 06 00 00 00 6b 6b 6b 6b ............kkkk a0 cc 9c 07 81 88 ff ff 78 a1 76 07 81 88 ff ff ........xv.... rastreo: [] kmalloc_trace+0x27/0xa0 [] damon_new_target+0x3f/0x1b0 [] damon_do_test_apply_tres_regiones.constprop.0+0x95/0x3e0 [] damon_test_apply_tres_regiones2+0x21e/0x260 [] kunit_generic_run_threadfn_adapter+0x4 a/0x90 [] kthread+0x2b6/0x380 [] ret_from_fork +0x2d/0x70 [] ret_from_fork_asm+0x11/0x20 objeto sin referencia 0xffff8881079ccc80 (tama\u00f1o 56): comm \"kunit_try_catch\", pid 1071, jiffies 4294670595 (edad 732.843 s) volcado hexadecimal (primero 32 bytes): 05 00 00 00 00 00 00 00 14 00 00 00 00 00 00 00 ................ 6b 6b 6b 6b 6b 6b 6b 6b 00 00 00 00 6b 6b 6b 6b kkkkkkkk....kkkk retroceso : [] damon_new_region+0x22/0x1c0 [] damon_do_test_apply_tres_regiones.constprop.0+0xd1/0x3e0 [] damon_test_apply_tres_regiones2+0x21e/0x260 [] kunit_generic_run_threadfn_adapter+0x4a/0x90 [] kthread+0x2b6/0x380 [] ret_from_fork+0x2d/0x70 ["
          }
        ],
        "id": "CVE-2023-52560",
        "lastModified": "2026-06-17T06:43:01.610",
        "metrics": {
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              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
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              "exploitabilityScore": 1.8,
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        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
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                "lang": "en",
                "value": "CWE-401"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-06-28T07:44:50+00:00",
      "cve": "CVE-2023-52560",
      "id": "CVE-2023-52560",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:fixed": "430",
      "product_status:known_affected": "22",
      "product_status:known_not_affected": "58",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: mm/damon/vaddr-test: memory leak in damon_do_test_apply_three_regions()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-52560.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-31T01:06:17Z",
      "cve": "CVE-2023-52560",
      "id": "CVE-2023-52560",
      "initial_release_date": "2024-03-06T04:34:29Z",
      "product_status:known_not_affected": "436",
      "product_status:recommended": "20",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-52560",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-52560.json",
      "version": "20"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "providerMetadata": {
              "dateUpdated": "2024-08-02T23:03:20.913Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
              "shortName": "CVE"
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            "references": [
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                "url": "https://git.kernel.org/stable/c/9a4fe81a8644b717d57d81ce5849e16583b13fe8"
              },
              {
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                "url": "https://git.kernel.org/stable/c/6b522001693aa113d97a985abc5f6932972e8e86"
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              {
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                "url": "https://git.kernel.org/stable/c/45120b15743fa7c0aa53d5db6dfb4c8f87be4abd"
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            ],
            "title": "CVE Program Container"
          },
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2023-52560",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
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                      }
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                    "role": "CISA Coordinator",
                    "timestamp": "2024-03-04T15:35:56.845645Z",
                    "version": "2.0.3"
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            "providerMetadata": {
              "dateUpdated": "2024-05-23T19:01:14.706Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
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        ],
        "cna": {
          "affected": [
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              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "mm/damon/vaddr-test.h"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
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                  "status": "affected",
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                  "versionType": "git"
                },
                {
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                  "status": "affected",
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                  "versionType": "git"
                },
                {
                  "lessThan": "45120b15743fa7c0aa53d5db6dfb4c8f87be4abd",
                  "status": "affected",
                  "version": "9f86d624292c238203b3687cdb870a2cde1a6f9b",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "mm/damon/vaddr-test.h"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "5.16"
                },
                {
                  "lessThan": "5.16",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.1.*",
                  "status": "unaffected",
                  "version": "6.1.56",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.5.*",
                  "status": "unaffected",
                  "version": "6.5.6",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.6",
                  "versionType": "original_commit_for_fix"
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            }
          ],
          "cpeApplicability": [
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              "nodes": [
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                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.1.56",
                      "versionStartIncluding": "5.16",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.5.6",
                      "versionStartIncluding": "5.16",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.6",
                      "versionStartIncluding": "5.16",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
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          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/vaddr-test: fix memory leak in damon_do_test_apply_three_regions()\n\nWhen CONFIG_DAMON_VADDR_KUNIT_TEST=y and making CONFIG_DEBUG_KMEMLEAK=y\nand CONFIG_DEBUG_KMEMLEAK_AUTO_SCAN=y, the below memory leak is detected.\n\nSince commit 9f86d624292c (\"mm/damon/vaddr-test: remove unnecessary\nvariables\"), the damon_destroy_ctx() is removed, but still call\ndamon_new_target() and damon_new_region(), the damon_region which is\nallocated by kmem_cache_alloc() in damon_new_region() and the damon_target\nwhich is allocated by kmalloc in damon_new_target() are not freed.  And\nthe damon_region which is allocated in damon_new_region() in\ndamon_set_regions() is also not freed.\n\nSo use damon_destroy_target to free all the damon_regions and damon_target.\n\n    unreferenced object 0xffff888107c9a940 (size 64):\n      comm \"kunit_try_catch\", pid 1069, jiffies 4294670592 (age 732.761s)\n      hex dump (first 32 bytes):\n        00 00 00 00 00 00 00 00 06 00 00 00 6b 6b 6b 6b  ............kkkk\n        60 c7 9c 07 81 88 ff ff f8 cb 9c 07 81 88 ff ff  `...............\n      backtrace:\n        [\u003cffffffff817e0167\u003e] kmalloc_trace+0x27/0xa0\n        [\u003cffffffff819c11cf\u003e] damon_new_target+0x3f/0x1b0\n        [\u003cffffffff819c7d55\u003e] damon_do_test_apply_three_regions.constprop.0+0x95/0x3e0\n        [\u003cffffffff819c82be\u003e] damon_test_apply_three_regions1+0x21e/0x260\n        [\u003cffffffff829fce6a\u003e] kunit_generic_run_threadfn_adapter+0x4a/0x90\n        [\u003cffffffff81237cf6\u003e] kthread+0x2b6/0x380\n        [\u003cffffffff81097add\u003e] ret_from_fork+0x2d/0x70\n        [\u003cffffffff81003791\u003e] ret_from_fork_asm+0x11/0x20\n    unreferenced object 0xffff8881079cc740 (size 56):\n      comm \"kunit_try_catch\", pid 1069, jiffies 4294670592 (age 732.761s)\n      hex dump (first 32 bytes):\n        05 00 00 00 00 00 00 00 14 00 00 00 00 00 00 00  ................\n        6b 6b 6b 6b 6b 6b 6b 6b 00 00 00 00 6b 6b 6b 6b  kkkkkkkk....kkkk\n      backtrace:\n        [\u003cffffffff819bc492\u003e] damon_new_region+0x22/0x1c0\n        [\u003cffffffff819c7d91\u003e] damon_do_test_apply_three_regions.constprop.0+0xd1/0x3e0\n        [\u003cffffffff819c82be\u003e] damon_test_apply_three_regions1+0x21e/0x260\n        [\u003cffffffff829fce6a\u003e] kunit_generic_run_threadfn_adapter+0x4a/0x90\n        [\u003cffffffff81237cf6\u003e] kthread+0x2b6/0x380\n        [\u003cffffffff81097add\u003e] ret_from_fork+0x2d/0x70\n        [\u003cffffffff81003791\u003e] ret_from_fork_asm+0x11/0x20\n    unreferenced object 0xffff888107c9ac40 (size 64):\n      comm \"kunit_try_catch\", pid 1071, jiffies 4294670595 (age 732.843s)\n      hex dump (first 32 bytes):\n        00 00 00 00 00 00 00 00 06 00 00 00 6b 6b 6b 6b  ............kkkk\n        a0 cc 9c 07 81 88 ff ff 78 a1 76 07 81 88 ff ff  ........x.v.....\n      backtrace:\n        [\u003cffffffff817e0167\u003e] kmalloc_trace+0x27/0xa0\n        [\u003cffffffff819c11cf\u003e] damon_new_target+0x3f/0x1b0\n        [\u003cffffffff819c7d55\u003e] damon_do_test_apply_three_regions.constprop.0+0x95/0x3e0\n        [\u003cffffffff819c851e\u003e] damon_test_apply_three_regions2+0x21e/0x260\n        [\u003cffffffff829fce6a\u003e] kunit_generic_run_threadfn_adapter+0x4a/0x90\n        [\u003cffffffff81237cf6\u003e] kthread+0x2b6/0x380\n        [\u003cffffffff81097add\u003e] ret_from_fork+0x2d/0x70\n        [\u003cffffffff81003791\u003e] ret_from_fork_asm+0x11/0x20\n    unreferenced object 0xffff8881079ccc80 (size 56):\n      comm \"kunit_try_catch\", pid 1071, jiffies 4294670595 (age 732.843s)\n      hex dump (first 32 bytes):\n        05 00 00 00 00 00 00 00 14 00 00 00 00 00 00 00  ................\n        6b 6b 6b 6b 6b 6b 6b 6b 00 00 00 00 6b 6b 6b 6b  kkkkkkkk....kkkk\n      backtrace:\n        [\u003cffffffff819bc492\u003e] damon_new_region+0x22/0x1c0\n        [\u003cffffffff819c7d91\u003e] damon_do_test_apply_three_regions.constprop.0+0xd1/0x3e0\n        [\u003cffffffff819c851e\u003e] damon_test_apply_three_regions2+0x21e/0x260\n        [\u003cffffffff829fce6a\u003e] kunit_generic_run_threadfn_adapter+0x4a/0x90\n        [\u003cffffffff81237cf6\u003e] kthread+0x2b6/0x380\n        [\u003cffffffff81097add\u003e] ret_from_fork+0x2d/0x70\n        [\u003cffff\n---truncated---"
            }
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          "providerMetadata": {
            "dateUpdated": "2025-05-04T07:38:46.798Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
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          "references": [
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              "url": "https://git.kernel.org/stable/c/9a4fe81a8644b717d57d81ce5849e16583b13fe8"
            },
            {
              "url": "https://git.kernel.org/stable/c/6b522001693aa113d97a985abc5f6932972e8e86"
            },
            {
              "url": "https://git.kernel.org/stable/c/45120b15743fa7c0aa53d5db6dfb4c8f87be4abd"
            }
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          "title": "mm/damon/vaddr-test: fix memory leak in damon_do_test_apply_three_regions()",
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      "cveMetadata": {
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        "assignerShortName": "Linux",
        "cveId": "CVE-2023-52560",
        "datePublished": "2024-03-02T21:59:34.084Z",
        "dateReserved": "2024-03-02T21:55:42.566Z",
        "dateUpdated": "2025-05-04T07:38:46.798Z",
        "state": "PUBLISHED"
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      "dataType": "CVE_RECORD",
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    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


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