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nvd-json-data-feeds/CVE-2024/CVE-2024-567xx/CVE-2024-56765.json
cad-safe-bot 6bee899239 Auto-Update: 2025-02-13T15:00:33.937314+00:00
2025-02-13 15:04:01 +00:00

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{
"id": "CVE-2024-56765",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2025-01-06T17:15:42.800",
"lastModified": "2025-02-13T14:16:17.130",
"vulnStatus": "Modified",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/pseries/vas: Add close() callback in vas_vm_ops struct\n\nThe mapping VMA address is saved in VAS window struct when the\npaste address is mapped. This VMA address is used during migration\nto unmap the paste address if the window is active. The paste\naddress mapping will be removed when the window is closed or with\nthe munmap(). But the VMA address in the VAS window is not updated\nwith munmap() which is causing invalid access during migration.\n\nThe KASAN report shows:\n[16386.254991] BUG: KASAN: slab-use-after-free in reconfig_close_windows+0x1a0/0x4e8\n[16386.255043] Read of size 8 at addr c00000014a819670 by task drmgr/696928\n\n[16386.255096] CPU: 29 UID: 0 PID: 696928 Comm: drmgr Kdump: loaded Tainted: G B 6.11.0-rc5-nxgzip #2\n[16386.255128] Tainted: [B]=BAD_PAGE\n[16386.255148] Hardware name: IBM,9080-HEX Power11 (architected) 0x820200 0xf000007 of:IBM,FW1110.00 (NH1110_016) hv:phyp pSeries\n[16386.255181] Call Trace:\n[16386.255202] [c00000016b297660] [c0000000018ad0ac] dump_stack_lvl+0x84/0xe8 (unreliable)\n[16386.255246] [c00000016b297690] [c0000000006e8a90] print_report+0x19c/0x764\n[16386.255285] [c00000016b297760] [c0000000006e9490] kasan_report+0x128/0x1f8\n[16386.255309] [c00000016b297880] [c0000000006eb5c8] __asan_load8+0xac/0xe0\n[16386.255326] [c00000016b2978a0] [c00000000013f898] reconfig_close_windows+0x1a0/0x4e8\n[16386.255343] [c00000016b297990] [c000000000140e58] vas_migration_handler+0x3a4/0x3fc\n[16386.255368] [c00000016b297a90] [c000000000128848] pseries_migrate_partition+0x4c/0x4c4\n...\n\n[16386.256136] Allocated by task 696554 on cpu 31 at 16377.277618s:\n[16386.256149] kasan_save_stack+0x34/0x68\n[16386.256163] kasan_save_track+0x34/0x80\n[16386.256175] kasan_save_alloc_info+0x58/0x74\n[16386.256196] __kasan_slab_alloc+0xb8/0xdc\n[16386.256209] kmem_cache_alloc_noprof+0x200/0x3d0\n[16386.256225] vm_area_alloc+0x44/0x150\n[16386.256245] mmap_region+0x214/0x10c4\n[16386.256265] do_mmap+0x5fc/0x750\n[16386.256277] vm_mmap_pgoff+0x14c/0x24c\n[16386.256292] ksys_mmap_pgoff+0x20c/0x348\n[16386.256303] sys_mmap+0xd0/0x160\n...\n\n[16386.256350] Freed by task 0 on cpu 31 at 16386.204848s:\n[16386.256363] kasan_save_stack+0x34/0x68\n[16386.256374] kasan_save_track+0x34/0x80\n[16386.256384] kasan_save_free_info+0x64/0x10c\n[16386.256396] __kasan_slab_free+0x120/0x204\n[16386.256415] kmem_cache_free+0x128/0x450\n[16386.256428] vm_area_free_rcu_cb+0xa8/0xd8\n[16386.256441] rcu_do_batch+0x2c8/0xcf0\n[16386.256458] rcu_core+0x378/0x3c4\n[16386.256473] handle_softirqs+0x20c/0x60c\n[16386.256495] do_softirq_own_stack+0x6c/0x88\n[16386.256509] do_softirq_own_stack+0x58/0x88\n[16386.256521] __irq_exit_rcu+0x1a4/0x20c\n[16386.256533] irq_exit+0x20/0x38\n[16386.256544] interrupt_async_exit_prepare.constprop.0+0x18/0x2c\n...\n\n[16386.256717] Last potentially related work creation:\n[16386.256729] kasan_save_stack+0x34/0x68\n[16386.256741] __kasan_record_aux_stack+0xcc/0x12c\n[16386.256753] __call_rcu_common.constprop.0+0x94/0xd04\n[16386.256766] vm_area_free+0x28/0x3c\n[16386.256778] remove_vma+0xf4/0x114\n[16386.256797] do_vmi_align_munmap.constprop.0+0x684/0x870\n[16386.256811] __vm_munmap+0xe0/0x1f8\n[16386.256821] sys_munmap+0x54/0x6c\n[16386.256830] system_call_exception+0x1a0/0x4a0\n[16386.256841] system_call_vectored_common+0x15c/0x2ec\n\n[16386.256868] The buggy address belongs to the object at c00000014a819670\n which belongs to the cache vm_area_struct of size 168\n[16386.256887] The buggy address is located 0 bytes inside of\n freed 168-byte region [c00000014a819670, c00000014a819718)\n\n[16386.256915] The buggy address belongs to the physical page:\n[16386.256928] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x14a81\n[16386.256950] memcg:c0000000ba430001\n[16386.256961] anon flags: 0x43ffff800000000(node=4|zone=0|lastcpupid=0x7ffff)\n[16386.256975] page_type: 0xfdffffff(slab)\n[16386\n---truncated---"
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: powerpc/pseries/vas: Agregar devoluci\u00f3n de llamada close() en la estructura vas_vm_ops La direcci\u00f3n VMA de asignaci\u00f3n se guarda en la estructura de la ventana VAS cuando se asigna la direcci\u00f3n de pegado. Esta direcci\u00f3n VMA se utiliza durante la migraci\u00f3n para anular la asignaci\u00f3n de la direcci\u00f3n de pegado si la ventana est\u00e1 activa. La asignaci\u00f3n de la direcci\u00f3n de pegado se eliminar\u00e1 cuando se cierre la ventana o con munmap(). Pero la direcci\u00f3n VMA en la ventana VAS no se actualiza con munmap(), lo que provoca un acceso no v\u00e1lido durante la migraci\u00f3n. El informe de KASAN muestra: [16386.254991] BUG: KASAN: slab-use-after-free in reconfig_close_windows+0x1a0/0x4e8 [16386.255043] Read of size 8 at addr c00000014a819670 by task drmgr/696928 [16386.255096] CPU: 29 UID: 0 PID: 696928 Comm: drmgr Kdump: loaded Tainted: G B 6.11.0-rc5-nxgzip #2 [16386.255128] Tainted: [B]=BAD_PAGE [16386.255148] Hardware name: IBM,9080-HEX Power11 (architected) 0x820200 0xf000007 of:IBM,FW1110.00 (NH1110_016) hv:phyp pSeries [16386.255181] Call Trace: [16386.255202] [c00000016b297660] [c0000000018ad0ac] dump_stack_lvl+0x84/0xe8 (unreliable) [16386.255246] [c00000016b297690] [c0000000006e8a90] print_report+0x19c/0x764 [16386.255285] [c00000016b297760] [c0000000006e9490] kasan_report+0x128/0x1f8 [16386.255309] [c00000016b297880] [c0000000006eb5c8] __asan_load8+0xac/0xe0 [16386.255326] [c00000016b2978a0] [c00000000013f898] reconfig_close_windows+0x1a0/0x4e8 [16386.255343] [c00000016b297990] [c000000000140e58] vas_migration_handler+0x3a4/0x3fc [16386.255368] [c00000016b297a90] [c000000000128848] pseries_migrate_partition+0x4c/0x4c4 ... [16386.256136] Allocated by task 696554 on cpu 31 at 16377.277618s: [16386.256149] kasan_save_stack+0x34/0x68 [16386.256163] kasan_save_track+0x34/0x80 [16386.256175] kasan_save_alloc_info+0x58/0x74 [16386.256196] __kasan_slab_alloc+0xb8/0xdc [16386.256209] kmem_cache_alloc_noprof+0x200/0x3d0 [16386.256225] vm_area_alloc+0x44/0x150 [16386.256245] mmap_region+0x214/0x10c4 [16386.256265] do_mmap+0x5fc/0x750 [16386.256277] vm_mmap_pgoff+0x14c/0x24c [16386.256292] ksys_mmap_pgoff+0x20c/0x348 [16386.256303] sys_mmap+0xd0/0x160 ... [16386.256350] Freed by task 0 on cpu 31 at 16386.204848s: [16386.256363] kasan_save_stack+0x34/0x68 [16386.256374] kasan_save_track+0x34/0x80 [16386.256384] kasan_save_free_info+0x64/0x10c [16386.256396] __kasan_slab_free+0x120/0x204 [16386.256415] kmem_cache_free+0x128/0x450 [16386.256428] vm_area_free_rcu_cb+0xa8/0xd8 [16386.256441] rcu_do_batch+0x2c8/0xcf0 [16386.256458] rcu_core+0x378/0x3c4 [16386.256473] handle_softirqs+0x20c/0x60c [16386.256495] do_softirq_own_stack+0x6c/0x88 [16386.256509] do_softirq_own_stack+0x58/0x88 [16386.256521] __irq_exit_rcu+0x1a4/0x20c [16386.256533] irq_exit+0x20/0x38 [16386.256544] interrupt_async_exit_prepare.constprop.0+0x18/0x2c ... [16386.256717] Last potentially related work creation: [16386.256729] kasan_save_stack+0x34/0x68 [16386.256741] __kasan_record_aux_stack+0xcc/0x12c [16386.256753] __call_rcu_common.constprop.0+0x94/0xd04 [16386.256766] vm_area_free+0x28/0x3c [16386.256778] remove_vma+0xf4/0x114 [16386.256797] do_vmi_align_munmap.constprop.0+0x684/0x870 [16386.256811] __vm_munmap+0xe0/0x1f8 [16386.256821] sys_munmap+0x54/0x6c [16386.256830] system_call_exception+0x1a0/0x4a0 [16386.256841] system_call_vectored_common+0x15c/0x2ec [16386.256868] The buggy address belongs to the object at c00000014a819670 which belongs to the cache vm_area_struct of size 168 [16386.256887] The buggy address is located 0 bytes inside of freed 168-byte region [c00000014a819670, c00000014a819718) [16386.256915] The buggy address belongs to the physical page: [16386.256928] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x14a81 [16386.256950] memcg:c0000000ba430001 [16386.256961] anon flags: 0x43ffff800000000(node=4|zone=0|lastcpupid=0x7ffff) [16386.256975] page_type: 0xfdffffff(slab) [16386 ---truncado---"
}
],
"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:H/I:H/A:H",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9
},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9
}
]
},
"weaknesses": [
{
"source": "nvd@nist.gov",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "CWE-416"
}
]
},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-416"
}
]
}
],
"configurations": [
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