cve-2024-35832
Vulnerability from cvelistv5
Published
2024-05-17 13:48
Modified
2024-12-19 08:56
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: bcachefs: kvfree bch_fs::snapshots in bch2_fs_snapshots_exit bch_fs::snapshots is allocated by kvzalloc in __snapshot_t_mut. It should be freed by kvfree not kfree. Or umount will triger: [ 406.829178 ] BUG: unable to handle page fault for address: ffffe7b487148008 [ 406.830676 ] #PF: supervisor read access in kernel mode [ 406.831643 ] #PF: error_code(0x0000) - not-present page [ 406.832487 ] PGD 0 P4D 0 [ 406.832898 ] Oops: 0000 [#1] PREEMPT SMP PTI [ 406.833512 ] CPU: 2 PID: 1754 Comm: umount Kdump: loaded Tainted: G OE 6.7.0-rc7-custom+ #90 [ 406.834746 ] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Arch Linux 1.16.3-1-1 04/01/2014 [ 406.835796 ] RIP: 0010:kfree+0x62/0x140 [ 406.836197 ] Code: 80 48 01 d8 0f 82 e9 00 00 00 48 c7 c2 00 00 00 80 48 2b 15 78 9f 1f 01 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 56 9f 1f 01 <48> 8b 50 08 48 89 c7 f6 c2 01 0f 85 b0 00 00 00 66 90 48 8b 07 f6 [ 406.837810 ] RSP: 0018:ffffb9d641607e48 EFLAGS: 00010286 [ 406.838213 ] RAX: ffffe7b487148000 RBX: ffffb9d645200000 RCX: ffffb9d641607dc4 [ 406.838738 ] RDX: 000065bb00000000 RSI: ffffffffc0d88b84 RDI: ffffb9d645200000 [ 406.839217 ] RBP: ffff9a4625d00068 R08: 0000000000000001 R09: 0000000000000001 [ 406.839650 ] R10: 0000000000000001 R11: 000000000000001f R12: ffff9a4625d4da80 [ 406.840055 ] R13: ffff9a4625d00000 R14: ffffffffc0e2eb20 R15: 0000000000000000 [ 406.840451 ] FS: 00007f0a264ffb80(0000) GS:ffff9a4e2d500000(0000) knlGS:0000000000000000 [ 406.840851 ] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 406.841125 ] CR2: ffffe7b487148008 CR3: 000000018c4d2000 CR4: 00000000000006f0 [ 406.841464 ] Call Trace: [ 406.841583 ] <TASK> [ 406.841682 ] ? __die+0x1f/0x70 [ 406.841828 ] ? page_fault_oops+0x159/0x470 [ 406.842014 ] ? fixup_exception+0x22/0x310 [ 406.842198 ] ? exc_page_fault+0x1ed/0x200 [ 406.842382 ] ? asm_exc_page_fault+0x22/0x30 [ 406.842574 ] ? bch2_fs_release+0x54/0x280 [bcachefs] [ 406.842842 ] ? kfree+0x62/0x140 [ 406.842988 ] ? kfree+0x104/0x140 [ 406.843138 ] bch2_fs_release+0x54/0x280 [bcachefs] [ 406.843390 ] kobject_put+0xb7/0x170 [ 406.843552 ] deactivate_locked_super+0x2f/0xa0 [ 406.843756 ] cleanup_mnt+0xba/0x150 [ 406.843917 ] task_work_run+0x59/0xa0 [ 406.844083 ] exit_to_user_mode_prepare+0x197/0x1a0 [ 406.844302 ] syscall_exit_to_user_mode+0x16/0x40 [ 406.844510 ] do_syscall_64+0x4e/0xf0 [ 406.844675 ] entry_SYSCALL_64_after_hwframe+0x6e/0x76 [ 406.844907 ] RIP: 0033:0x7f0a2664e4fb
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/369acf97d6fd5da620d053d0f1878ffe32eff555
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/56590678791119b9a655202e49898edfb9307271
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/369acf97d6fd5da620d053d0f1878ffe32eff555
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/56590678791119b9a655202e49898edfb9307271
Impacted products
Vendor Product Version
Linux Linux Version: 1c6fdbd8f2465ddfb73a01ec620cbf3d14044e1a
Version: 1c6fdbd8f2465ddfb73a01ec620cbf3d14044e1a
 Create a notification for this product.
   Linux Linux Version: 6.7
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               dateUpdated: "2024-08-02T03:21:47.614Z",
               orgId: "af854a3a-2127-422b-91ae-364da2661108",
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                  url: "https://git.kernel.org/stable/c/369acf97d6fd5da620d053d0f1878ffe32eff555",
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            title: "CVE Program Container",
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            metrics: [
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                     content: {
                        id: "CVE-2024-35832",
                        options: [
                           {
                              Exploitation: "none",
                           },
                           {
                              Automatable: "no",
                           },
                           {
                              "Technical Impact": "partial",
                           },
                        ],
                        role: "CISA Coordinator",
                        timestamp: "2024-09-10T15:42:15.715605Z",
                        version: "2.0.3",
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                     type: "ssvc",
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            providerMetadata: {
               dateUpdated: "2024-09-11T17:33:19.899Z",
               orgId: "134c704f-9b21-4f2e-91b3-4a467353bcc0",
               shortName: "CISA-ADP",
            },
            title: "CISA ADP Vulnrichment",
         },
      ],
      cna: {
         affected: [
            {
               defaultStatus: "unaffected",
               product: "Linux",
               programFiles: [
                  "fs/bcachefs/snapshot.c",
               ],
               repo: "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               vendor: "Linux",
               versions: [
                  {
                     lessThan: "56590678791119b9a655202e49898edfb9307271",
                     status: "affected",
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                     status: "affected",
                     version: "1c6fdbd8f2465ddfb73a01ec620cbf3d14044e1a",
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            {
               defaultStatus: "affected",
               product: "Linux",
               programFiles: [
                  "fs/bcachefs/snapshot.c",
               ],
               repo: "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               vendor: "Linux",
               versions: [
                  {
                     status: "affected",
                     version: "6.7",
                  },
                  {
                     lessThan: "6.7",
                     status: "unaffected",
                     version: "0",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "6.7.*",
                     status: "unaffected",
                     version: "6.7.5",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "*",
                     status: "unaffected",
                     version: "6.8",
                     versionType: "original_commit_for_fix",
                  },
               ],
            },
         ],
         descriptions: [
            {
               lang: "en",
               value: "In the Linux kernel, the following vulnerability has been resolved:\n\nbcachefs: kvfree bch_fs::snapshots in bch2_fs_snapshots_exit\n\nbch_fs::snapshots is allocated by kvzalloc in __snapshot_t_mut.\nIt should be freed by kvfree not kfree.\nOr umount will triger:\n\n[  406.829178 ] BUG: unable to handle page fault for address: ffffe7b487148008\n[  406.830676 ] #PF: supervisor read access in kernel mode\n[  406.831643 ] #PF: error_code(0x0000) - not-present page\n[  406.832487 ] PGD 0 P4D 0\n[  406.832898 ] Oops: 0000 [#1] PREEMPT SMP PTI\n[  406.833512 ] CPU: 2 PID: 1754 Comm: umount Kdump: loaded Tainted: G           OE      6.7.0-rc7-custom+ #90\n[  406.834746 ] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Arch Linux 1.16.3-1-1 04/01/2014\n[  406.835796 ] RIP: 0010:kfree+0x62/0x140\n[  406.836197 ] Code: 80 48 01 d8 0f 82 e9 00 00 00 48 c7 c2 00 00 00 80 48 2b 15 78 9f 1f 01 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 56 9f 1f 01 <48> 8b 50 08 48 89 c7 f6 c2 01 0f 85 b0 00 00 00 66 90 48 8b 07 f6\n[  406.837810 ] RSP: 0018:ffffb9d641607e48 EFLAGS: 00010286\n[  406.838213 ] RAX: ffffe7b487148000 RBX: ffffb9d645200000 RCX: ffffb9d641607dc4\n[  406.838738 ] RDX: 000065bb00000000 RSI: ffffffffc0d88b84 RDI: ffffb9d645200000\n[  406.839217 ] RBP: ffff9a4625d00068 R08: 0000000000000001 R09: 0000000000000001\n[  406.839650 ] R10: 0000000000000001 R11: 000000000000001f R12: ffff9a4625d4da80\n[  406.840055 ] R13: ffff9a4625d00000 R14: ffffffffc0e2eb20 R15: 0000000000000000\n[  406.840451 ] FS:  00007f0a264ffb80(0000) GS:ffff9a4e2d500000(0000) knlGS:0000000000000000\n[  406.840851 ] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  406.841125 ] CR2: ffffe7b487148008 CR3: 000000018c4d2000 CR4: 00000000000006f0\n[  406.841464 ] Call Trace:\n[  406.841583 ]  <TASK>\n[  406.841682 ]  ? __die+0x1f/0x70\n[  406.841828 ]  ? page_fault_oops+0x159/0x470\n[  406.842014 ]  ? fixup_exception+0x22/0x310\n[  406.842198 ]  ? exc_page_fault+0x1ed/0x200\n[  406.842382 ]  ? asm_exc_page_fault+0x22/0x30\n[  406.842574 ]  ? bch2_fs_release+0x54/0x280 [bcachefs]\n[  406.842842 ]  ? kfree+0x62/0x140\n[  406.842988 ]  ? kfree+0x104/0x140\n[  406.843138 ]  bch2_fs_release+0x54/0x280 [bcachefs]\n[  406.843390 ]  kobject_put+0xb7/0x170\n[  406.843552 ]  deactivate_locked_super+0x2f/0xa0\n[  406.843756 ]  cleanup_mnt+0xba/0x150\n[  406.843917 ]  task_work_run+0x59/0xa0\n[  406.844083 ]  exit_to_user_mode_prepare+0x197/0x1a0\n[  406.844302 ]  syscall_exit_to_user_mode+0x16/0x40\n[  406.844510 ]  do_syscall_64+0x4e/0xf0\n[  406.844675 ]  entry_SYSCALL_64_after_hwframe+0x6e/0x76\n[  406.844907 ] RIP: 0033:0x7f0a2664e4fb",
            },
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         providerMetadata: {
            dateUpdated: "2024-12-19T08:56:05.293Z",
            orgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            shortName: "Linux",
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         references: [
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            {
               url: "https://git.kernel.org/stable/c/369acf97d6fd5da620d053d0f1878ffe32eff555",
            },
         ],
         title: "bcachefs: kvfree bch_fs::snapshots in bch2_fs_snapshots_exit",
         x_generator: {
            engine: "bippy-5f407fcff5a0",
         },
      },
   },
   cveMetadata: {
      assignerOrgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      assignerShortName: "Linux",
      cveId: "CVE-2024-35832",
      datePublished: "2024-05-17T13:48:20.877Z",
      dateReserved: "2024-05-17T12:19:12.348Z",
      dateUpdated: "2024-12-19T08:56:05.293Z",
      state: "PUBLISHED",
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   dataType: "CVE_RECORD",
   dataVersion: "5.1",
   "vulnerability-lookup:meta": {
      nvd: "{\"cve\":{\"id\":\"CVE-2024-35832\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-17T14:15:19.710\",\"lastModified\":\"2024-11-21T09:21:00.063\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbcachefs: kvfree bch_fs::snapshots in bch2_fs_snapshots_exit\\n\\nbch_fs::snapshots is allocated by kvzalloc in __snapshot_t_mut.\\nIt should be freed by kvfree not kfree.\\nOr umount will triger:\\n\\n[  406.829178 ] BUG: unable to handle page fault for address: ffffe7b487148008\\n[  406.830676 ] #PF: supervisor read access in kernel mode\\n[  406.831643 ] #PF: error_code(0x0000) - not-present page\\n[  406.832487 ] PGD 0 P4D 0\\n[  406.832898 ] Oops: 0000 [#1] PREEMPT SMP PTI\\n[  406.833512 ] CPU: 2 PID: 1754 Comm: umount Kdump: loaded Tainted: G           OE      6.7.0-rc7-custom+ #90\\n[  406.834746 ] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Arch Linux 1.16.3-1-1 04/01/2014\\n[  406.835796 ] RIP: 0010:kfree+0x62/0x140\\n[  406.836197 ] Code: 80 48 01 d8 0f 82 e9 00 00 00 48 c7 c2 00 00 00 80 48 2b 15 78 9f 1f 01 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 56 9f 1f 01 <48> 8b 50 08 48 89 c7 f6 c2 01 0f 85 b0 00 00 00 66 90 48 8b 07 f6\\n[  406.837810 ] RSP: 0018:ffffb9d641607e48 EFLAGS: 00010286\\n[  406.838213 ] RAX: ffffe7b487148000 RBX: ffffb9d645200000 RCX: ffffb9d641607dc4\\n[  406.838738 ] RDX: 000065bb00000000 RSI: ffffffffc0d88b84 RDI: ffffb9d645200000\\n[  406.839217 ] RBP: ffff9a4625d00068 R08: 0000000000000001 R09: 0000000000000001\\n[  406.839650 ] R10: 0000000000000001 R11: 000000000000001f R12: ffff9a4625d4da80\\n[  406.840055 ] R13: ffff9a4625d00000 R14: ffffffffc0e2eb20 R15: 0000000000000000\\n[  406.840451 ] FS:  00007f0a264ffb80(0000) GS:ffff9a4e2d500000(0000) knlGS:0000000000000000\\n[  406.840851 ] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n[  406.841125 ] CR2: ffffe7b487148008 CR3: 000000018c4d2000 CR4: 00000000000006f0\\n[  406.841464 ] Call Trace:\\n[  406.841583 ]  <TASK>\\n[  406.841682 ]  ? __die+0x1f/0x70\\n[  406.841828 ]  ? page_fault_oops+0x159/0x470\\n[  406.842014 ]  ? fixup_exception+0x22/0x310\\n[  406.842198 ]  ? exc_page_fault+0x1ed/0x200\\n[  406.842382 ]  ? asm_exc_page_fault+0x22/0x30\\n[  406.842574 ]  ? bch2_fs_release+0x54/0x280 [bcachefs]\\n[  406.842842 ]  ? kfree+0x62/0x140\\n[  406.842988 ]  ? kfree+0x104/0x140\\n[  406.843138 ]  bch2_fs_release+0x54/0x280 [bcachefs]\\n[  406.843390 ]  kobject_put+0xb7/0x170\\n[  406.843552 ]  deactivate_locked_super+0x2f/0xa0\\n[  406.843756 ]  cleanup_mnt+0xba/0x150\\n[  406.843917 ]  task_work_run+0x59/0xa0\\n[  406.844083 ]  exit_to_user_mode_prepare+0x197/0x1a0\\n[  406.844302 ]  syscall_exit_to_user_mode+0x16/0x40\\n[  406.844510 ]  do_syscall_64+0x4e/0xf0\\n[  406.844675 ]  entry_SYSCALL_64_after_hwframe+0x6e/0x76\\n[  406.844907 ] RIP: 0033:0x7f0a2664e4fb\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bcachefs: kvfree bch_fs::snapshots en bch2_fs_snapshots_exit bch_fs::snapshots es asignado por kvzalloc en __snapshot_t_mut. Debería ser liberado por kvfree, no por kfree. O desmontar activará: [406.829178] ERROR: no se puede manejar el error de página para la dirección: ffffe7b487148008 [406.830676] #PF: acceso de lectura del supervisor en modo kernel [406.831643] #PF: error_code(0x0000) - página no presente [406.832487] PGD 0 P4D 0 [ 406.832898 ] Vaya: 0000 [#1] PREEMPT SMP PTI [ 406.833512 ] CPU: 2 PID: 1754 Comunicaciones: desmontar Kdump: cargado Contaminado: G OE 6.7.0-rc7-custom+ #90 [ 406.834746 ] Nombre de hardware: PC estándar QEMU (i440FX + PIIX, 1996), BIOS Arch Linux 1.16.3-1-1 01/04/2014 [ 406.835796 ] RIP: 0010:kfree+0x62/0x140 [ 406.836197 ] Código: 80 48 01 d8 0f 82 e9 00 00 00 48 c7 c2 00 00 00 80 48 2b 15 78 9f 1f 01 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 56 9f 1f 01 &lt;48&gt; 8b 50 08 48 89 c7 f6 01 0f 85b0 00 00 00 66 90 48 8b 07 f6 [ 406.837810 ] RSP: 0018:ffffb9d641607e48 EFLAGS: 00010286 [ 406.838213 ] RAX: ffffe7b487148000 RBX: 0000 RCX: ffffb9d641607dc4 [ 406.838738 ] RDX: 000065bb00000000 RSI: ffffffffc0d88b84 RDI: ffffb9d645200000 [ 406.839217 ] RBP: ffff9a4625d00068 R08: 0000000000000001 R09: 00000000000000001 [ 406.839650 ] R10: 0000000000000001 R11: 000000000000001f R12: ffff9a4625d4da80 [ 406.8 40055 ] R13: ffff9a4625d00000 R14: ffffffffc0e2eb20 R15: 0000000000000000 [ 406.840451 ] FS: 00007f0a264ffb80(0000) GS:ffff9a4e2d500000(0000) knlGS:0000000000000000 [ 406.840851 ] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 406.841125 ] CR2: ffffe7b487148008 CR3: 000000018c4d2000 CR4: 00000000000006f0 [ 406.841 464 ] Seguimiento de llamadas: [ 406.841583 ]  [ 406.841682 ] ? __die+0x1f/0x70 [ 406.841828 ] ? page_fault_oops+0x159/0x470 [406.842014]? fixup_exception+0x22/0x310 [406.842198]? exc_page_fault+0x1ed/0x200 [406.842382]? asm_exc_page_fault+0x22/0x30 [406.842574]? bch2_fs_release+0x54/0x280 [bcachefs] [406.842842]? kfree+0x62/0x140 [ 406.842988 ] ? kfree+0x104/0x140 [ 406.843138 ] bch2_fs_release+0x54/0x280 [bcachefs] [ 406.843390 ] kobject_put+0xb7/0x170 [ 406.843552 ] desactivar_locked_super+0x2f/0xa0 [ 406.843 756 ] cleanup_mnt+0xba/0x150 [ 406.843917 ] task_work_run+0x59/0xa0 [ 406.844083 ] exit_to_user_mode_prepare+0x197/0x1a0 [ 406.844302 ] syscall_exit_to_user_mode+0x16/0x40 [ 406.844510 ] do_syscall_64+0x4e/0xf0 [ 406.844675 entrada_SYSCALL_64_after_hwframe +0x6e/0x76 [ 406.844907 ] RIP: 0033:0x7f0a2664e4fb\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/369acf97d6fd5da620d053d0f1878ffe32eff555\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/56590678791119b9a655202e49898edfb9307271\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/369acf97d6fd5da620d053d0f1878ffe32eff555\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/56590678791119b9a655202e49898edfb9307271\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
      vulnrichment: {
         containers: "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/56590678791119b9a655202e49898edfb9307271\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/369acf97d6fd5da620d053d0f1878ffe32eff555\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T03:21:47.614Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-35832\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-09-10T15:42:15.715605Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-09-11T12:42:16.181Z\"}}], \"cna\": {\"title\": \"bcachefs: kvfree bch_fs::snapshots in bch2_fs_snapshots_exit\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"1c6fdbd8f2465ddfb73a01ec620cbf3d14044e1a\", \"lessThan\": \"56590678791119b9a655202e49898edfb9307271\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1c6fdbd8f2465ddfb73a01ec620cbf3d14044e1a\", \"lessThan\": \"369acf97d6fd5da620d053d0f1878ffe32eff555\", \"versionType\": \"git\"}], \"programFiles\": [\"fs/bcachefs/snapshot.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.7\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.7\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.7.5\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.7.*\"}, {\"status\": \"unaffected\", \"version\": \"6.8\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"fs/bcachefs/snapshot.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/56590678791119b9a655202e49898edfb9307271\"}, {\"url\": \"https://git.kernel.org/stable/c/369acf97d6fd5da620d053d0f1878ffe32eff555\"}], \"x_generator\": {\"engine\": \"bippy-5f407fcff5a0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbcachefs: kvfree bch_fs::snapshots in bch2_fs_snapshots_exit\\n\\nbch_fs::snapshots is allocated by kvzalloc in __snapshot_t_mut.\\nIt should be freed by kvfree not kfree.\\nOr umount will triger:\\n\\n[  406.829178 ] BUG: unable to handle page fault for address: ffffe7b487148008\\n[  406.830676 ] #PF: supervisor read access in kernel mode\\n[  406.831643 ] #PF: error_code(0x0000) - not-present page\\n[  406.832487 ] PGD 0 P4D 0\\n[  406.832898 ] Oops: 0000 [#1] PREEMPT SMP PTI\\n[  406.833512 ] CPU: 2 PID: 1754 Comm: umount Kdump: loaded Tainted: G           OE      6.7.0-rc7-custom+ #90\\n[  406.834746 ] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Arch Linux 1.16.3-1-1 04/01/2014\\n[  406.835796 ] RIP: 0010:kfree+0x62/0x140\\n[  406.836197 ] Code: 80 48 01 d8 0f 82 e9 00 00 00 48 c7 c2 00 00 00 80 48 2b 15 78 9f 1f 01 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 56 9f 1f 01 <48> 8b 50 08 48 89 c7 f6 c2 01 0f 85 b0 00 00 00 66 90 48 8b 07 f6\\n[  406.837810 ] RSP: 0018:ffffb9d641607e48 EFLAGS: 00010286\\n[  406.838213 ] RAX: ffffe7b487148000 RBX: ffffb9d645200000 RCX: ffffb9d641607dc4\\n[  406.838738 ] RDX: 000065bb00000000 RSI: ffffffffc0d88b84 RDI: ffffb9d645200000\\n[  406.839217 ] RBP: ffff9a4625d00068 R08: 0000000000000001 R09: 0000000000000001\\n[  406.839650 ] R10: 0000000000000001 R11: 000000000000001f R12: ffff9a4625d4da80\\n[  406.840055 ] R13: ffff9a4625d00000 R14: ffffffffc0e2eb20 R15: 0000000000000000\\n[  406.840451 ] FS:  00007f0a264ffb80(0000) GS:ffff9a4e2d500000(0000) knlGS:0000000000000000\\n[  406.840851 ] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n[  406.841125 ] CR2: ffffe7b487148008 CR3: 000000018c4d2000 CR4: 00000000000006f0\\n[  406.841464 ] Call Trace:\\n[  406.841583 ]  <TASK>\\n[  406.841682 ]  ? __die+0x1f/0x70\\n[  406.841828 ]  ? page_fault_oops+0x159/0x470\\n[  406.842014 ]  ? fixup_exception+0x22/0x310\\n[  406.842198 ]  ? exc_page_fault+0x1ed/0x200\\n[  406.842382 ]  ? asm_exc_page_fault+0x22/0x30\\n[  406.842574 ]  ? bch2_fs_release+0x54/0x280 [bcachefs]\\n[  406.842842 ]  ? kfree+0x62/0x140\\n[  406.842988 ]  ? kfree+0x104/0x140\\n[  406.843138 ]  bch2_fs_release+0x54/0x280 [bcachefs]\\n[  406.843390 ]  kobject_put+0xb7/0x170\\n[  406.843552 ]  deactivate_locked_super+0x2f/0xa0\\n[  406.843756 ]  cleanup_mnt+0xba/0x150\\n[  406.843917 ]  task_work_run+0x59/0xa0\\n[  406.844083 ]  exit_to_user_mode_prepare+0x197/0x1a0\\n[  406.844302 ]  syscall_exit_to_user_mode+0x16/0x40\\n[  406.844510 ]  do_syscall_64+0x4e/0xf0\\n[  406.844675 ]  entry_SYSCALL_64_after_hwframe+0x6e/0x76\\n[  406.844907 ] RIP: 0033:0x7f0a2664e4fb\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-12-19T08:56:05.293Z\"}}}",
         cveMetadata: "{\"cveId\": \"CVE-2024-35832\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-12-19T08:56:05.293Z\", \"dateReserved\": \"2024-05-17T12:19:12.348Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-17T13:48:20.877Z\", \"assignerShortName\": \"Linux\"}",
         dataType: "CVE_RECORD",
         dataVersion: "5.1",
      },
   },
}


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