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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)
guessed Create a notification for this product.
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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---"
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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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          "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": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-52560",
    "datePublished": "2024-03-02T21:59:34.084Z",
    "dateReserved": "2024-03-02T21:55:42.566Z",
    "dateUpdated": "2026-05-11T19:29:09.642Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2023-52560",
      "date": "2026-09-12",
      "epss": "0.00253",
      "percentile": "0.16859"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-52560\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-03-02T22:15:48.750\",\"lastModified\":\"2026-06-17T06:43:01.610\",\"vulnStatus\":\"Analyzed\",\"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 [\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"mm/damon/vaddr-test.h\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"9f86d624292c238203b3687cdb870a2cde1a6f9b\",\"lessThan\":\"9a4fe81a8644b717d57d81ce5849e16583b13fe8\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"9f86d624292c238203b3687cdb870a2cde1a6f9b\",\"lessThan\":\"6b522001693aa113d97a985abc5f6932972e8e86\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"9f86d624292c238203b3687cdb870a2cde1a6f9b\",\"lessThan\":\"45120b15743fa7c0aa53d5db6dfb4c8f87be4abd\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"mm/damon/vaddr-test.h\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5.16\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.16\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.56\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.5.6\",\"lessThanOrEqual\":\"6.5.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-03-04T15:35:56.845645Z\",\"id\":\"CVE-2023-52560\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-401\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.56\",\"matchCriteriaId\":\"5EA89569-DD45-4A69-BB4D-8356FA9386BD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.5.6\",\"matchCriteriaId\":\"870FC772-173A-4A0F-B1AF-7976AD6057D3\"},{\"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\"}]}]}],\"references\":[{\"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\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"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\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}",
    "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"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/9a4fe81a8644b717d57d81ce5849e16583b13fe8\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/6b522001693aa113d97a985abc5f6932972e8e86\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/45120b15743fa7c0aa53d5db6dfb4c8f87be4abd\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T23:03:20.913Z\"}}, {\"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-52560\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-03-04T15:35:56.845645Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-05-23T19:01:14.706Z\"}, \"title\": \"CISA ADP Vulnrichment\"}], \"cna\": {\"title\": \"mm/damon/vaddr-test: fix memory leak in damon_do_test_apply_three_regions()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"9f86d624292c238203b3687cdb870a2cde1a6f9b\", \"lessThan\": \"9a4fe81a8644b717d57d81ce5849e16583b13fe8\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"9f86d624292c238203b3687cdb870a2cde1a6f9b\", \"lessThan\": \"6b522001693aa113d97a985abc5f6932972e8e86\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"9f86d624292c238203b3687cdb870a2cde1a6f9b\", \"lessThan\": \"45120b15743fa7c0aa53d5db6dfb4c8f87be4abd\", \"versionType\": \"git\"}], \"programFiles\": [\"mm/damon/vaddr-test.h\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.16\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.16\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.1.56\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.5.6\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.5.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"mm/damon/vaddr-test.h\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/9a4fe81a8644b717d57d81ce5849e16583b13fe8\"}, {\"url\": \"https://git.kernel.org/stable/c/6b522001693aa113d97a985abc5f6932972e8e86\"}, {\"url\": \"https://git.kernel.org/stable/c/45120b15743fa7c0aa53d5db6dfb4c8f87be4abd\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"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---\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.56\", \"versionStartIncluding\": \"5.16\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.5.6\", \"versionStartIncluding\": \"5.16\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6\", \"versionStartIncluding\": \"5.16\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T07:38:46.798Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-52560\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T07:38:46.798Z\", \"dateReserved\": \"2024-03-02T21:55:42.566Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-03-02T21:59:34.084Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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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.

Sightings

Author Source Type Date Other

Nomenclature

  • 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.