cve-2024-46789
Vulnerability from cvelistv5
Published
2024-09-18 07:12
Modified
2024-12-19 09:23
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: mm/slub: add check for s->flags in the alloc_tagging_slab_free_hook When enable CONFIG_MEMCG & CONFIG_KFENCE & CONFIG_KMEMLEAK, the following warning always occurs,This is because the following call stack occurred: mem_pool_alloc kmem_cache_alloc_noprof slab_alloc_node kfence_alloc Once the kfence allocation is successful,slab->obj_exts will not be empty, because it has already been assigned a value in kfence_init_pool. Since in the prepare_slab_obj_exts_hook function,we perform a check for s->flags & (SLAB_NO_OBJ_EXT | SLAB_NOLEAKTRACE),the alloc_tag_add function will not be called as a result.Therefore,ref->ct remains NULL. However,when we call mem_pool_free,since obj_ext is not empty, it eventually leads to the alloc_tag_sub scenario being invoked. This is where the warning occurs. So we should add corresponding checks in the alloc_tagging_slab_free_hook. For __GFP_NO_OBJ_EXT case,I didn't see the specific case where it's using kfence,so I won't add the corresponding check in alloc_tagging_slab_free_hook for now. [ 3.734349] ------------[ cut here ]------------ [ 3.734807] alloc_tag was not set [ 3.735129] WARNING: CPU: 4 PID: 40 at ./include/linux/alloc_tag.h:130 kmem_cache_free+0x444/0x574 [ 3.735866] Modules linked in: autofs4 [ 3.736211] CPU: 4 UID: 0 PID: 40 Comm: ksoftirqd/4 Tainted: G W 6.11.0-rc3-dirty #1 [ 3.736969] Tainted: [W]=WARN [ 3.737258] Hardware name: QEMU KVM Virtual Machine, BIOS unknown 2/2/2022 [ 3.737875] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 3.738501] pc : kmem_cache_free+0x444/0x574 [ 3.738951] lr : kmem_cache_free+0x444/0x574 [ 3.739361] sp : ffff80008357bb60 [ 3.739693] x29: ffff80008357bb70 x28: 0000000000000000 x27: 0000000000000000 [ 3.740338] x26: ffff80008207f000 x25: ffff000b2eb2fd60 x24: ffff0000c0005700 [ 3.740982] x23: ffff8000804229e4 x22: ffff800082080000 x21: ffff800081756000 [ 3.741630] x20: fffffd7ff8253360 x19: 00000000000000a8 x18: ffffffffffffffff [ 3.742274] x17: ffff800ab327f000 x16: ffff800083398000 x15: ffff800081756df0 [ 3.742919] x14: 0000000000000000 x13: 205d344320202020 x12: 5b5d373038343337 [ 3.743560] x11: ffff80008357b650 x10: 000000000000005d x9 : 00000000ffffffd0 [ 3.744231] x8 : 7f7f7f7f7f7f7f7f x7 : ffff80008237bad0 x6 : c0000000ffff7fff [ 3.744907] x5 : ffff80008237ba78 x4 : ffff8000820bbad0 x3 : 0000000000000001 [ 3.745580] x2 : 68d66547c09f7800 x1 : 68d66547c09f7800 x0 : 0000000000000000 [ 3.746255] Call trace: [ 3.746530] kmem_cache_free+0x444/0x574 [ 3.746931] mem_pool_free+0x44/0xf4 [ 3.747306] free_object_rcu+0xc8/0xdc [ 3.747693] rcu_do_batch+0x234/0x8a4 [ 3.748075] rcu_core+0x230/0x3e4 [ 3.748424] rcu_core_si+0x14/0x1c [ 3.748780] handle_softirqs+0x134/0x378 [ 3.749189] run_ksoftirqd+0x70/0x9c [ 3.749560] smpboot_thread_fn+0x148/0x22c [ 3.749978] kthread+0x10c/0x118 [ 3.750323] ret_from_fork+0x10/0x20 [ 3.750696] ---[ end trace 0000000000000000 ]---
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2d476c86ba4745fcbc912ce4627df4fa80caa9adPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ab7ca09520e9c41c219a4427fe0dae24024bfe7fPatch
Impacted products
Vendor Product Version
Linux Linux Version: 4b8736964640fe160724e7135dc62883bddcdace
Version: 4b8736964640fe160724e7135dc62883bddcdace
 Create a notification for this product.
   Linux Linux Version: 6.10
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
   containers: {
      adp: [
         {
            metrics: [
               {
                  other: {
                     content: {
                        id: "CVE-2024-46789",
                        options: [
                           {
                              Exploitation: "none",
                           },
                           {
                              Automatable: "no",
                           },
                           {
                              "Technical Impact": "partial",
                           },
                        ],
                        role: "CISA Coordinator",
                        timestamp: "2024-09-29T14:24:16.008606Z",
                        version: "2.0.3",
                     },
                     type: "ssvc",
                  },
               },
            ],
            providerMetadata: {
               dateUpdated: "2024-09-29T14:25:36.916Z",
               orgId: "134c704f-9b21-4f2e-91b3-4a467353bcc0",
               shortName: "CISA-ADP",
            },
            title: "CISA ADP Vulnrichment",
         },
      ],
      cna: {
         affected: [
            {
               defaultStatus: "unaffected",
               product: "Linux",
               programFiles: [
                  "mm/slub.c",
               ],
               repo: "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               vendor: "Linux",
               versions: [
                  {
                     lessThan: "2d476c86ba4745fcbc912ce4627df4fa80caa9ad",
                     status: "affected",
                     version: "4b8736964640fe160724e7135dc62883bddcdace",
                     versionType: "git",
                  },
                  {
                     lessThan: "ab7ca09520e9c41c219a4427fe0dae24024bfe7f",
                     status: "affected",
                     version: "4b8736964640fe160724e7135dc62883bddcdace",
                     versionType: "git",
                  },
               ],
            },
            {
               defaultStatus: "affected",
               product: "Linux",
               programFiles: [
                  "mm/slub.c",
               ],
               repo: "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               vendor: "Linux",
               versions: [
                  {
                     status: "affected",
                     version: "6.10",
                  },
                  {
                     lessThan: "6.10",
                     status: "unaffected",
                     version: "0",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "6.10.*",
                     status: "unaffected",
                     version: "6.10.10",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "*",
                     status: "unaffected",
                     version: "6.11",
                     versionType: "original_commit_for_fix",
                  },
               ],
            },
         ],
         descriptions: [
            {
               lang: "en",
               value: "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/slub: add check for s->flags in the alloc_tagging_slab_free_hook\n\nWhen enable CONFIG_MEMCG & CONFIG_KFENCE & CONFIG_KMEMLEAK, the following\nwarning always occurs,This is because the following call stack occurred:\nmem_pool_alloc\n    kmem_cache_alloc_noprof\n        slab_alloc_node\n            kfence_alloc\n\nOnce the kfence allocation is successful,slab->obj_exts will not be empty,\nbecause it has already been assigned a value in kfence_init_pool.\n\nSince in the prepare_slab_obj_exts_hook function,we perform a check for\ns->flags & (SLAB_NO_OBJ_EXT | SLAB_NOLEAKTRACE),the alloc_tag_add function\nwill not be called as a result.Therefore,ref->ct remains NULL.\n\nHowever,when we call mem_pool_free,since obj_ext is not empty, it\neventually leads to the alloc_tag_sub scenario being invoked.  This is\nwhere the warning occurs.\n\nSo we should add corresponding checks in the alloc_tagging_slab_free_hook.\nFor __GFP_NO_OBJ_EXT case,I didn't see the specific case where it's using\nkfence,so I won't add the corresponding check in\nalloc_tagging_slab_free_hook for now.\n\n[    3.734349] ------------[ cut here ]------------\n[    3.734807] alloc_tag was not set\n[    3.735129] WARNING: CPU: 4 PID: 40 at ./include/linux/alloc_tag.h:130 kmem_cache_free+0x444/0x574\n[    3.735866] Modules linked in: autofs4\n[    3.736211] CPU: 4 UID: 0 PID: 40 Comm: ksoftirqd/4 Tainted: G        W          6.11.0-rc3-dirty #1\n[    3.736969] Tainted: [W]=WARN\n[    3.737258] Hardware name: QEMU KVM Virtual Machine, BIOS unknown 2/2/2022\n[    3.737875] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[    3.738501] pc : kmem_cache_free+0x444/0x574\n[    3.738951] lr : kmem_cache_free+0x444/0x574\n[    3.739361] sp : ffff80008357bb60\n[    3.739693] x29: ffff80008357bb70 x28: 0000000000000000 x27: 0000000000000000\n[    3.740338] x26: ffff80008207f000 x25: ffff000b2eb2fd60 x24: ffff0000c0005700\n[    3.740982] x23: ffff8000804229e4 x22: ffff800082080000 x21: ffff800081756000\n[    3.741630] x20: fffffd7ff8253360 x19: 00000000000000a8 x18: ffffffffffffffff\n[    3.742274] x17: ffff800ab327f000 x16: ffff800083398000 x15: ffff800081756df0\n[    3.742919] x14: 0000000000000000 x13: 205d344320202020 x12: 5b5d373038343337\n[    3.743560] x11: ffff80008357b650 x10: 000000000000005d x9 : 00000000ffffffd0\n[    3.744231] x8 : 7f7f7f7f7f7f7f7f x7 : ffff80008237bad0 x6 : c0000000ffff7fff\n[    3.744907] x5 : ffff80008237ba78 x4 : ffff8000820bbad0 x3 : 0000000000000001\n[    3.745580] x2 : 68d66547c09f7800 x1 : 68d66547c09f7800 x0 : 0000000000000000\n[    3.746255] Call trace:\n[    3.746530]  kmem_cache_free+0x444/0x574\n[    3.746931]  mem_pool_free+0x44/0xf4\n[    3.747306]  free_object_rcu+0xc8/0xdc\n[    3.747693]  rcu_do_batch+0x234/0x8a4\n[    3.748075]  rcu_core+0x230/0x3e4\n[    3.748424]  rcu_core_si+0x14/0x1c\n[    3.748780]  handle_softirqs+0x134/0x378\n[    3.749189]  run_ksoftirqd+0x70/0x9c\n[    3.749560]  smpboot_thread_fn+0x148/0x22c\n[    3.749978]  kthread+0x10c/0x118\n[    3.750323]  ret_from_fork+0x10/0x20\n[    3.750696] ---[ end trace 0000000000000000 ]---",
            },
         ],
         providerMetadata: {
            dateUpdated: "2024-12-19T09:23:10.993Z",
            orgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            shortName: "Linux",
         },
         references: [
            {
               url: "https://git.kernel.org/stable/c/2d476c86ba4745fcbc912ce4627df4fa80caa9ad",
            },
            {
               url: "https://git.kernel.org/stable/c/ab7ca09520e9c41c219a4427fe0dae24024bfe7f",
            },
         ],
         title: "mm/slub: add check for s->flags in the alloc_tagging_slab_free_hook",
         x_generator: {
            engine: "bippy-5f407fcff5a0",
         },
      },
   },
   cveMetadata: {
      assignerOrgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      assignerShortName: "Linux",
      cveId: "CVE-2024-46789",
      datePublished: "2024-09-18T07:12:45.154Z",
      dateReserved: "2024-09-11T15:12:18.278Z",
      dateUpdated: "2024-12-19T09:23:10.993Z",
      state: "PUBLISHED",
   },
   dataType: "CVE_RECORD",
   dataVersion: "5.1",
   "vulnerability-lookup:meta": {
      nvd: "{\"cve\":{\"id\":\"CVE-2024-46789\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-09-18T08:15:05.957\",\"lastModified\":\"2024-11-20T17:27:03.197\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmm/slub: add check for s->flags in the alloc_tagging_slab_free_hook\\n\\nWhen enable CONFIG_MEMCG & CONFIG_KFENCE & CONFIG_KMEMLEAK, the following\\nwarning always occurs,This is because the following call stack occurred:\\nmem_pool_alloc\\n    kmem_cache_alloc_noprof\\n        slab_alloc_node\\n            kfence_alloc\\n\\nOnce the kfence allocation is successful,slab->obj_exts will not be empty,\\nbecause it has already been assigned a value in kfence_init_pool.\\n\\nSince in the prepare_slab_obj_exts_hook function,we perform a check for\\ns->flags & (SLAB_NO_OBJ_EXT | SLAB_NOLEAKTRACE),the alloc_tag_add function\\nwill not be called as a result.Therefore,ref->ct remains NULL.\\n\\nHowever,when we call mem_pool_free,since obj_ext is not empty, it\\neventually leads to the alloc_tag_sub scenario being invoked.  This is\\nwhere the warning occurs.\\n\\nSo we should add corresponding checks in the alloc_tagging_slab_free_hook.\\nFor __GFP_NO_OBJ_EXT case,I didn't see the specific case where it's using\\nkfence,so I won't add the corresponding check in\\nalloc_tagging_slab_free_hook for now.\\n\\n[    3.734349] ------------[ cut here ]------------\\n[    3.734807] alloc_tag was not set\\n[    3.735129] WARNING: CPU: 4 PID: 40 at ./include/linux/alloc_tag.h:130 kmem_cache_free+0x444/0x574\\n[    3.735866] Modules linked in: autofs4\\n[    3.736211] CPU: 4 UID: 0 PID: 40 Comm: ksoftirqd/4 Tainted: G        W          6.11.0-rc3-dirty #1\\n[    3.736969] Tainted: [W]=WARN\\n[    3.737258] Hardware name: QEMU KVM Virtual Machine, BIOS unknown 2/2/2022\\n[    3.737875] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\\n[    3.738501] pc : kmem_cache_free+0x444/0x574\\n[    3.738951] lr : kmem_cache_free+0x444/0x574\\n[    3.739361] sp : ffff80008357bb60\\n[    3.739693] x29: ffff80008357bb70 x28: 0000000000000000 x27: 0000000000000000\\n[    3.740338] x26: ffff80008207f000 x25: ffff000b2eb2fd60 x24: ffff0000c0005700\\n[    3.740982] x23: ffff8000804229e4 x22: ffff800082080000 x21: ffff800081756000\\n[    3.741630] x20: fffffd7ff8253360 x19: 00000000000000a8 x18: ffffffffffffffff\\n[    3.742274] x17: ffff800ab327f000 x16: ffff800083398000 x15: ffff800081756df0\\n[    3.742919] x14: 0000000000000000 x13: 205d344320202020 x12: 5b5d373038343337\\n[    3.743560] x11: ffff80008357b650 x10: 000000000000005d x9 : 00000000ffffffd0\\n[    3.744231] x8 : 7f7f7f7f7f7f7f7f x7 : ffff80008237bad0 x6 : c0000000ffff7fff\\n[    3.744907] x5 : ffff80008237ba78 x4 : ffff8000820bbad0 x3 : 0000000000000001\\n[    3.745580] x2 : 68d66547c09f7800 x1 : 68d66547c09f7800 x0 : 0000000000000000\\n[    3.746255] Call trace:\\n[    3.746530]  kmem_cache_free+0x444/0x574\\n[    3.746931]  mem_pool_free+0x44/0xf4\\n[    3.747306]  free_object_rcu+0xc8/0xdc\\n[    3.747693]  rcu_do_batch+0x234/0x8a4\\n[    3.748075]  rcu_core+0x230/0x3e4\\n[    3.748424]  rcu_core_si+0x14/0x1c\\n[    3.748780]  handle_softirqs+0x134/0x378\\n[    3.749189]  run_ksoftirqd+0x70/0x9c\\n[    3.749560]  smpboot_thread_fn+0x148/0x22c\\n[    3.749978]  kthread+0x10c/0x118\\n[    3.750323]  ret_from_fork+0x10/0x20\\n[    3.750696] ---[ end trace 0000000000000000 ]---\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mm/slub: agregar comprobación de s->flags en alloc_tagging_slab_free_hook Cuando se habilitan CONFIG_MEMCG y CONFIG_KFENCE y CONFIG_KMEMLEAK, siempre aparece la siguiente advertencia. Esto se debe a que se produjo la siguiente pila de llamadas: mem_pool_alloc kmem_cache_alloc_noprof slab_alloc_node kfence_alloc Una vez que la asignación de kfence es exitosa, slab->obj_exts no estará vacío, porque ya se le ha asignado un valor en kfence_init_pool. Dado que en la función prepare_slab_obj_exts_hook, realizamos una comprobación de s->flags y (SLAB_NO_OBJ_EXT | SLAB_NOLEAKTRACE), la función alloc_tag_add no se llamará como resultado. Por lo tanto, ref->ct permanece NULL. Sin embargo, cuando llamamos a mem_pool_free, dado que obj_ext no está vacío, finalmente se invoca el escenario alloc_tag_sub. Aquí es donde se produce la advertencia. Por lo tanto, deberíamos agregar las comprobaciones correspondientes en alloc_tagging_slab_free_hook. Para el caso de __GFP_NO_OBJ_EXT, no vi el caso específico en el que se usa kfence, por lo que no agregaré la comprobación correspondiente en alloc_tagging_slab_free_hook por ahora. [ 3.734349] ------------[ cortar aquí ]------------ [ 3.734807] alloc_tag no se configuró [ 3.735129] ADVERTENCIA: CPU: 4 PID: 40 en ./include/linux/alloc_tag.h:130 kmem_cache_free+0x444/0x574 [ 3.735866] Módulos vinculados en: autofs4 [ 3.736211] CPU: 4 UID: 0 PID: 40 Comm: ksoftirqd/4 Contaminado: GW 6.11.0-rc3-dirty #1 [ 3.736969] Contaminado: [W]=WARN [ 3.737258] Nombre del hardware: QEMU KVM Virtual Machine, BIOS desconocido 2/2/2022 [ 3.737875] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 3.738501] pc : kmem_cache_free+0x444/0x574 [ 3.738951] lr : kmem_cache_free+0x444/0x574 [ 3.739361] sp : ffff80008357bb60 [ 3.739693] x29: ffff80008357bb70 x28: 0000000000000000 x27: 0000000000000000 [ 3.740338] x26: ffff80008207f000 x25: ffff000b2eb2fd60 x24: ffff0000c0005700 [ 3.740982] x23: ffff8000804229e4 x22: ffff800082080000 x21: ffff800081756000 [ 3.741630] x20: fffffd7ff8253360 x19: 00000000000000a8 x18: ffffffffffffffffff [ 3.742274] x17: ffff800ab327f000 x16: ffff800083398000 x15: ffff800081756df0 [ 3.742919] x14: 0000000000000000 x13: 205d344320202020 x12: 5b5d373038343337 [ 3.743560] x11: ffff80008357b650 x10: 000000000000005d x9 : 00000000ff ffffd0 [3.744231] x8: 7f7f7f7f7f7f7f7f x7: ffff80008237bad0 x6: c0000000ffff7fff [3.744907] x5: ffff80008237ba78 x4: ffff8000820bbad0 x3: 00000000000000001 [ 3.745580] x2 : 68d66547c09f7800 x1 : 68d66547c09f7800 x0 : 0000000000000000 [ 3.746255] Rastreo de llamadas: [ 3.746530] kmem_cache_free+0x444/0x574 [ 3.746931] mem_pool_free+0x44/0xf4 [ 3.747306] free_object_rcu+0xc8/0xdc [ 3.747693] rcu_do_batch+0x234/0x8a4 [ 3.748075] rcu_core+0x230/0x3e4 [ 3.748424] rcu_core_si+0x14/0x1c [ 3.748780] handle_softirqs+0x134/0x378 [ 3.749189] run_ksoftirqd+0x70/0x9c [ 3.749560] smpboot_thread_fn+0x148/0x22c [ 3.749978] kthread+0x10c/0x118 [ 3.750323] ret_from_fork+0x10/0x20 [ 3.750696] ---[ 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\":\"6.10\",\"versionEndExcluding\":\"6.10.10\",\"matchCriteriaId\":\"D16659A9-BECD-4E13-8994-B096652762E2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"8B3CE743-2126-47A3-8B7C-822B502CF119\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"4DEB27E7-30AA-45CC-8934-B89263EF3551\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"E0005AEF-856E-47EB-BFE4-90C46899394D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.11:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"39889A68-6D34-47A6-82FC-CD0BF23D6754\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.11:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"B8383ABF-1457-401F-9B61-EE50F4C61F4F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.11:rc6:*:*:*:*:*:*\",\"matchCriteriaId\":\"B77A9280-37E6-49AD-B559-5B23A3B1DC3D\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2d476c86ba4745fcbc912ce4627df4fa80caa9ad\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ab7ca09520e9c41c219a4427fe0dae24024bfe7f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
      vulnrichment: {
         containers: "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-46789\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-09-29T14:24:16.008606Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-09-29T14:25:33.241Z\"}}], \"cna\": {\"title\": \"mm/slub: add check for s->flags in the alloc_tagging_slab_free_hook\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4b8736964640\", \"lessThan\": \"2d476c86ba47\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"4b8736964640\", \"lessThan\": \"ab7ca09520e9\", \"versionType\": \"git\"}], \"programFiles\": [\"mm/slub.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.10\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.10\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.10.10\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.10.*\"}, {\"status\": \"unaffected\", \"version\": \"6.11\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"mm/slub.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/2d476c86ba4745fcbc912ce4627df4fa80caa9ad\"}, {\"url\": \"https://git.kernel.org/stable/c/ab7ca09520e9c41c219a4427fe0dae24024bfe7f\"}], \"x_generator\": {\"engine\": \"bippy-9e1c9544281a\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmm/slub: add check for s->flags in the alloc_tagging_slab_free_hook\\n\\nWhen enable CONFIG_MEMCG & CONFIG_KFENCE & CONFIG_KMEMLEAK, the following\\nwarning always occurs,This is because the following call stack occurred:\\nmem_pool_alloc\\n    kmem_cache_alloc_noprof\\n        slab_alloc_node\\n            kfence_alloc\\n\\nOnce the kfence allocation is successful,slab->obj_exts will not be empty,\\nbecause it has already been assigned a value in kfence_init_pool.\\n\\nSince in the prepare_slab_obj_exts_hook function,we perform a check for\\ns->flags & (SLAB_NO_OBJ_EXT | SLAB_NOLEAKTRACE),the alloc_tag_add function\\nwill not be called as a result.Therefore,ref->ct remains NULL.\\n\\nHowever,when we call mem_pool_free,since obj_ext is not empty, it\\neventually leads to the alloc_tag_sub scenario being invoked.  This is\\nwhere the warning occurs.\\n\\nSo we should add corresponding checks in the alloc_tagging_slab_free_hook.\\nFor __GFP_NO_OBJ_EXT case,I didn't see the specific case where it's using\\nkfence,so I won't add the corresponding check in\\nalloc_tagging_slab_free_hook for now.\\n\\n[    3.734349] ------------[ cut here ]------------\\n[    3.734807] alloc_tag was not set\\n[    3.735129] WARNING: CPU: 4 PID: 40 at ./include/linux/alloc_tag.h:130 kmem_cache_free+0x444/0x574\\n[    3.735866] Modules linked in: autofs4\\n[    3.736211] CPU: 4 UID: 0 PID: 40 Comm: ksoftirqd/4 Tainted: G        W          6.11.0-rc3-dirty #1\\n[    3.736969] Tainted: [W]=WARN\\n[    3.737258] Hardware name: QEMU KVM Virtual Machine, BIOS unknown 2/2/2022\\n[    3.737875] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\\n[    3.738501] pc : kmem_cache_free+0x444/0x574\\n[    3.738951] lr : kmem_cache_free+0x444/0x574\\n[    3.739361] sp : ffff80008357bb60\\n[    3.739693] x29: ffff80008357bb70 x28: 0000000000000000 x27: 0000000000000000\\n[    3.740338] x26: ffff80008207f000 x25: ffff000b2eb2fd60 x24: ffff0000c0005700\\n[    3.740982] x23: ffff8000804229e4 x22: ffff800082080000 x21: ffff800081756000\\n[    3.741630] x20: fffffd7ff8253360 x19: 00000000000000a8 x18: ffffffffffffffff\\n[    3.742274] x17: ffff800ab327f000 x16: ffff800083398000 x15: ffff800081756df0\\n[    3.742919] x14: 0000000000000000 x13: 205d344320202020 x12: 5b5d373038343337\\n[    3.743560] x11: ffff80008357b650 x10: 000000000000005d x9 : 00000000ffffffd0\\n[    3.744231] x8 : 7f7f7f7f7f7f7f7f x7 : ffff80008237bad0 x6 : c0000000ffff7fff\\n[    3.744907] x5 : ffff80008237ba78 x4 : ffff8000820bbad0 x3 : 0000000000000001\\n[    3.745580] x2 : 68d66547c09f7800 x1 : 68d66547c09f7800 x0 : 0000000000000000\\n[    3.746255] Call trace:\\n[    3.746530]  kmem_cache_free+0x444/0x574\\n[    3.746931]  mem_pool_free+0x44/0xf4\\n[    3.747306]  free_object_rcu+0xc8/0xdc\\n[    3.747693]  rcu_do_batch+0x234/0x8a4\\n[    3.748075]  rcu_core+0x230/0x3e4\\n[    3.748424]  rcu_core_si+0x14/0x1c\\n[    3.748780]  handle_softirqs+0x134/0x378\\n[    3.749189]  run_ksoftirqd+0x70/0x9c\\n[    3.749560]  smpboot_thread_fn+0x148/0x22c\\n[    3.749978]  kthread+0x10c/0x118\\n[    3.750323]  ret_from_fork+0x10/0x20\\n[    3.750696] ---[ end trace 0000000000000000 ]---\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-11-05T09:46:40.202Z\"}}}",
         cveMetadata: "{\"cveId\": \"CVE-2024-46789\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-11-05T09:46:40.202Z\", \"dateReserved\": \"2024-09-11T15:12:18.278Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-09-18T07:12:45.154Z\", \"assignerShortName\": \"Linux\"}",
         dataType: "CVE_RECORD",
         dataVersion: "5.1",
      },
   },
}


Log in or create an account to share your comment.

Security Advisory comment format.

This schema specifies the format of a comment related to a security advisory.

UUIDv4 of the comment
UUIDv4 of the Vulnerability-Lookup instance
When the comment was created originally
When the comment was last updated
Title of the comment
Description of the comment
The identifier of the vulnerability (CVE ID, GHSA-ID, PYSEC ID, etc.).



Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.