CVE-2023-52560

{"id": "CVE-2023-52560", "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}]}, "published": "2024-03-02T22:15:48.750", "references": [{"url": "https://git.kernel.org/stable/c/45120b15743fa7c0aa53d5db6dfb4c8f87be4abd", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/6b522001693aa113d97a985abc5f6932972e8e86", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/9a4fe81a8644b717d57d81ce5849e16583b13fe8", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/45120b15743fa7c0aa53d5db6dfb4c8f87be4abd", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/6b522001693aa113d97a985abc5f6932972e8e86", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/9a4fe81a8644b717d57d81ce5849e16583b13fe8", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-401"}]}], "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 [<ffffffff817e0167>] kmalloc_trace+0x27/0xa0\n [<ffffffff819c11cf>] damon_new_target+0x3f/0x1b0\n [<ffffffff819c7d55>] damon_do_test_apply_three_regions.constprop.0+0x95/0x3e0\n [<ffffffff819c82be>] damon_test_apply_three_regions1+0x21e/0x260\n [<ffffffff829fce6a>] kunit_generic_run_threadfn_adapter+0x4a/0x90\n [<ffffffff81237cf6>] kthread+0x2b6/0x380\n [<ffffffff81097add>] ret_from_fork+0x2d/0x70\n [<ffffffff81003791>] 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 [<ffffffff819bc492>] damon_new_region+0x22/0x1c0\n [<ffffffff819c7d91>] damon_do_test_apply_three_regions.constprop.0+0xd1/0x3e0\n [<ffffffff819c82be>] damon_test_apply_three_regions1+0x21e/0x260\n [<ffffffff829fce6a>] kunit_generic_run_threadfn_adapter+0x4a/0x90\n [<ffffffff81237cf6>] kthread+0x2b6/0x380\n [<ffffffff81097add>] ret_from_fork+0x2d/0x70\n [<ffffffff81003791>] 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 [<ffffffff817e0167>] kmalloc_trace+0x27/0xa0\n [<ffffffff819c11cf>] damon_new_target+0x3f/0x1b0\n [<ffffffff819c7d55>] damon_do_test_apply_three_regions.constprop.0+0x95/0x3e0\n [<ffffffff819c851e>] damon_test_apply_three_regions2+0x21e/0x260\n [<ffffffff829fce6a>] kunit_generic_run_threadfn_adapter+0x4a/0x90\n [<ffffffff81237cf6>] kthread+0x2b6/0x380\n [<ffffffff81097add>] ret_from_fork+0x2d/0x70\n [<ffffffff81003791>] 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 [<ffffffff819bc492>] damon_new_region+0x22/0x1c0\n [<ffffffff819c7d91>] damon_do_test_apply_three_regions.constprop.0+0xd1/0x3e0\n [<ffffffff819c851e>] damon_test_apply_three_regions2+0x21e/0x260\n [<ffffffff829fce6a>] kunit_generic_run_threadfn_adapter+0x4a/0x90\n [<ffffffff81237cf6>] kthread+0x2b6/0x380\n [<ffffffff81097add>] ret_from_fork+0x2d/0x70\n [<ffff\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 [&lt; ffffffff81237cf6&gt;] 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 ["}], "lastModified": "2024-12-11T15:24:15.463", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5EA89569-DD45-4A69-BB4D-8356FA9386BD", "versionEndExcluding": "6.1.56", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "870FC772-173A-4A0F-B1AF-7976AD6057D3", "versionEndExcluding": "6.5.6", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.6:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "84267A4F-DBC2-444F-B41D-69E15E1BEC97"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.6:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FB440208-241C-4246-9A83-C1715C0DAA6C"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.6:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0DC421F1-3D5A-4BEF-BF76-4E468985D20B"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}