cve-2024-53049
Vulnerability from cvelistv5
Published
2024-11-19 17:19
Modified
2024-12-19 09:38
Severity ?
EPSS score ?
0.03% (0.04213)
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
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2b059d0d1e624adc6e69a754bc48057f8bf459dcPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/79aea7dfd98fbbf282d1408fc21849fc9a677768Patch
Impacted products
Vendor Product Version
Linux Linux Version: a0a44d9175b349df2462089140fb7f292100bd7c
Version: a0a44d9175b349df2462089140fb7f292100bd7c
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   Linux Linux Version: 6.11
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{
   containers: {
      cna: {
         affected: [
            {
               defaultStatus: "unaffected",
               product: "Linux",
               programFiles: [
                  "lib/slub_kunit.c",
               ],
               repo: "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               vendor: "Linux",
               versions: [
                  {
                     lessThan: "79aea7dfd98fbbf282d1408fc21849fc9a677768",
                     status: "affected",
                     version: "a0a44d9175b349df2462089140fb7f292100bd7c",
                     versionType: "git",
                  },
                  {
                     lessThan: "2b059d0d1e624adc6e69a754bc48057f8bf459dc",
                     status: "affected",
                     version: "a0a44d9175b349df2462089140fb7f292100bd7c",
                     versionType: "git",
                  },
               ],
            },
            {
               defaultStatus: "affected",
               product: "Linux",
               programFiles: [
                  "lib/slub_kunit.c",
               ],
               repo: "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               vendor: "Linux",
               versions: [
                  {
                     status: "affected",
                     version: "6.11",
                  },
                  {
                     lessThan: "6.11",
                     status: "unaffected",
                     version: "0",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "6.11.*",
                     status: "unaffected",
                     version: "6.11.7",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "*",
                     status: "unaffected",
                     version: "6.12",
                     versionType: "original_commit_for_fix",
                  },
               ],
            },
         ],
         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'modprobe slub_kunit' 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->alloc_tag to be null,\nleading to a warning in alloc_tag_add_check.\n\nLet's 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 ]---",
            },
         ],
         providerMetadata: {
            dateUpdated: "2024-12-19T09:38:00.353Z",
            orgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            shortName: "Linux",
         },
         references: [
            {
               url: "https://git.kernel.org/stable/c/79aea7dfd98fbbf282d1408fc21849fc9a677768",
            },
            {
               url: "https://git.kernel.org/stable/c/2b059d0d1e624adc6e69a754bc48057f8bf459dc",
            },
         ],
         title: "slub/kunit: fix a WARNING due to unwrapped __kmalloc_cache_noprof",
         x_generator: {
            engine: "bippy-5f407fcff5a0",
         },
      },
   },
   cveMetadata: {
      assignerOrgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      assignerShortName: "Linux",
      cveId: "CVE-2024-53049",
      datePublished: "2024-11-19T17:19:35.260Z",
      dateReserved: "2024-11-19T17:17:24.973Z",
      dateUpdated: "2024-12-19T09:38:00.353Z",
      state: "PUBLISHED",
   },
   dataType: "CVE_RECORD",
   dataVersion: "5.1",
   "vulnerability-lookup:meta": {
      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'modprobe slub_kunit' 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->alloc_tag to be null,\\nleading to a warning in alloc_tag_add_check.\\n\\nLet's 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 'modprobe slub_kunit' tendrá una advertencia como la que se muestra a continuación. La causa principal es que se utilizó __kmalloc_cache_noprof directamente, lo que resultó en que no se asignara alloc_tag. Esto provocó que current->alloc_tag fuera nulo, lo que generó una advertencia en alloc_tag_add_check. Agreguemos una capa alloc_hook a __kmalloc_cache_noprof específicamente dentro de lib/slub_kunit.c, que es el único usuario de esta función slub interna fuera de la implementación de kmalloc en sí. [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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