CVE-2024-53049 (GCVE-0-2024-53049)
Vulnerability from cvelistv5
Published
2024-11-19 17:19
Modified
2025-05-04 09:51
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: slub/kunit: fix a WARNING due to unwrapped __kmalloc_cache_noprof 'modprobe slub_kunit' will have a warning as shown below. The root cause is that __kmalloc_cache_noprof was directly used, which resulted in no alloc_tag being allocated. This caused current->alloc_tag to be null, leading to a warning in alloc_tag_add_check. Let's add an alloc_hook layer to __kmalloc_cache_noprof specifically within lib/slub_kunit.c, which is the only user of this internal slub function outside kmalloc implementation itself. [58162.947016] WARNING: CPU: 2 PID: 6210 at ./include/linux/alloc_tag.h:125 alloc_tagging_slab_alloc_hook+0x268/0x27c [58162.957721] Call trace: [58162.957919] alloc_tagging_slab_alloc_hook+0x268/0x27c [58162.958286] __kmalloc_cache_noprof+0x14c/0x344 [58162.958615] test_kmalloc_redzone_access+0x50/0x10c [slub_kunit] [58162.959045] kunit_try_run_case+0x74/0x184 [kunit] [58162.959401] kunit_generic_run_threadfn_adapter+0x2c/0x4c [kunit] [58162.959841] kthread+0x10c/0x118 [58162.960093] ret_from_fork+0x10/0x20 [58162.960363] ---[ end trace 0000000000000000 ]---
References
Impacted products
Vendor Product Version
Linux Linux Version: a0a44d9175b349df2462089140fb7f292100bd7c
Version: a0a44d9175b349df2462089140fb7f292100bd7c
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{
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          "product": "Linux",
          "programFiles": [
            "lib/slub_kunit.c"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nslub/kunit: fix a WARNING due to unwrapped __kmalloc_cache_noprof\n\n\u0027modprobe slub_kunit\u0027 will have a warning as shown below. The root cause\nis that __kmalloc_cache_noprof was directly used, which resulted in no\nalloc_tag being allocated. This caused current-\u003ealloc_tag to be null,\nleading to a warning in alloc_tag_add_check.\n\nLet\u0027s add an alloc_hook layer to __kmalloc_cache_noprof specifically\nwithin lib/slub_kunit.c, which is the only user of this internal slub\nfunction outside kmalloc implementation itself.\n\n[58162.947016] WARNING: CPU: 2 PID: 6210 at\n./include/linux/alloc_tag.h:125 alloc_tagging_slab_alloc_hook+0x268/0x27c\n[58162.957721] Call trace:\n[58162.957919]  alloc_tagging_slab_alloc_hook+0x268/0x27c\n[58162.958286]  __kmalloc_cache_noprof+0x14c/0x344\n[58162.958615]  test_kmalloc_redzone_access+0x50/0x10c [slub_kunit]\n[58162.959045]  kunit_try_run_case+0x74/0x184 [kunit]\n[58162.959401]  kunit_generic_run_threadfn_adapter+0x2c/0x4c [kunit]\n[58162.959841]  kthread+0x10c/0x118\n[58162.960093]  ret_from_fork+0x10/0x20\n[58162.960363] ---[ end trace 0000000000000000 ]---"
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    "datePublished": "2024-11-19T17:19:35.260Z",
    "dateReserved": "2024-11-19T17:17:24.973Z",
    "dateUpdated": "2025-05-04T09:51:42.485Z",
    "state": "PUBLISHED"
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    "nvd": "{\"cve\":{\"id\":\"CVE-2024-53049\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-11-19T18:15:25.190\",\"lastModified\":\"2024-11-22T17:01:54.103\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nslub/kunit: fix a WARNING due to unwrapped __kmalloc_cache_noprof\\n\\n\u0027modprobe slub_kunit\u0027 will have a warning as shown below. The root cause\\nis that __kmalloc_cache_noprof was directly used, which resulted in no\\nalloc_tag being allocated. This caused current-\u003ealloc_tag to be null,\\nleading to a warning in alloc_tag_add_check.\\n\\nLet\u0027s add an alloc_hook layer to __kmalloc_cache_noprof specifically\\nwithin lib/slub_kunit.c, which is the only user of this internal slub\\nfunction outside kmalloc implementation itself.\\n\\n[58162.947016] WARNING: CPU: 2 PID: 6210 at\\n./include/linux/alloc_tag.h:125 alloc_tagging_slab_alloc_hook+0x268/0x27c\\n[58162.957721] Call trace:\\n[58162.957919]  alloc_tagging_slab_alloc_hook+0x268/0x27c\\n[58162.958286]  __kmalloc_cache_noprof+0x14c/0x344\\n[58162.958615]  test_kmalloc_redzone_access+0x50/0x10c [slub_kunit]\\n[58162.959045]  kunit_try_run_case+0x74/0x184 [kunit]\\n[58162.959401]  kunit_generic_run_threadfn_adapter+0x2c/0x4c [kunit]\\n[58162.959841]  kthread+0x10c/0x118\\n[58162.960093]  ret_from_fork+0x10/0x20\\n[58162.960363] ---[ end trace 0000000000000000 ]---\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: slub/kunit: se corrige una ADVERTENCIA debido a que __kmalloc_cache_noprof sin encapsular \u0027modprobe slub_kunit\u0027 tendr\u00e1 una advertencia como la que se muestra a continuaci\u00f3n. La causa principal es que se utiliz\u00f3 __kmalloc_cache_noprof directamente, lo que result\u00f3 en que no se asignara alloc_tag. Esto provoc\u00f3 que current-\u0026gt;alloc_tag fuera nulo, lo que gener\u00f3 una advertencia en alloc_tag_add_check. Agreguemos una capa alloc_hook a __kmalloc_cache_noprof espec\u00edficamente dentro de lib/slub_kunit.c, que es el \u00fanico usuario de esta funci\u00f3n slub interna fuera de la implementaci\u00f3n de kmalloc en s\u00ed. [58162.947016] ADVERTENCIA: CPU: 2 PID: 6210 en ./include/linux/alloc_tag.h:125 alloc_tagging_slab_alloc_hook+0x268/0x27c [58162.957721] Rastreo de llamadas: [58162.957919] alloc_tagging_slab_alloc_hook+0x268/0x27c [58162.958286] __kmalloc_cache_noprof+0x14c/0x344 [58162.958615] test_kmalloc_redzone_access+0x50/0x10c [slub_kunit] [58162.959045] kunit_try_run_case+0x74/0x184 [kunit] [58162.959401] kunit_generic_run_threadfn_adapter+0x2c/0x4c [kunit] [58162.959841] kthread+0x10c/0x118 [58162.960093] ret_from_fork+0x10/0x20 [58162.960363] ---[ fin de seguimiento 0000000000000000 ]---\"}],\"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}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.11\",\"versionEndExcluding\":\"6.11.7\",\"matchCriteriaId\":\"386941FE-51A4-4893-9EC3-054AD3863E8D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"7F361E1D-580F-4A2D-A509-7615F73167A1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"925478D0-3E3D-4E6F-ACD5-09F28D5DF82C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"3C95E234-D335-4B6C-96BF-E2CEBD8654ED\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"E0F717D8-3014-4F84-8086-0124B2111379\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"24DBE6C7-2AAE-4818-AED2-E131F153D2FA\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2b059d0d1e624adc6e69a754bc48057f8bf459dc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/79aea7dfd98fbbf282d1408fc21849fc9a677768\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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