CVE-2026-23211
Estado: AnalizadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
mm, swap: restore swap_space attr aviod kernel panic
commit 8b47299a411a ("mm, swap: mark swap address space ro and add context debug check") made the swap address space read-only. It may lead to kernel panic if arch_prepare_to_swap returns a failure under heavy memory pressure as follows,
Restore swap address space as not ro to avoid the panic.
Detalles técnicos trazas, registros y código del informe original
el1_abort+0x40/0x64 el1h_64_sync_handler+0x48/0xcc el1h_64_sync+0x84/0x88 errseq_set+0x4c/0xb8 (P) __filemap_set_wb_err+0x20/0xd0 shrink_folio_list+0xc20/0x11cc evict_folios+0x1520/0x1be4 try_to_shrink_lruvec+0x27c/0x3dc shrink_one+0x9c/0x228 shrink_node+0xb3c/0xeac do_try_to_free_pages+0x170/0x4f0 try_to_free_pages+0x334/0x534 __alloc_pages_direct_reclaim+0x90/0x158 __alloc_pages_slowpath+0x334/0x588 __alloc_frozen_pages_noprof+0x224/0x2fc __folio_alloc_noprof+0x14/0x64 vma_alloc_zeroed_movable_folio+0x34/0x44 do_pte_missing+0xad4/0x1040 handle_mm_fault+0x4a4/0x790 do_page_fault+0x288/0x5f8 do_translation_fault+0x38/0x54 do_mem_abort+0x54/0xa8
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.10%
- Percentil entre todas las CVEs puntuadas: 1
- Fecha de la puntuación: 5/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- NVD-CWE-noinfo
Referencias
JSON original (NVD)
Mostrar
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
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"published": "2026-02-18T15:18:42.360",
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"value": "NVD-CWE-noinfo"
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm, swap: restore swap_space attr aviod kernel panic\n\ncommit 8b47299a411a (\"mm, swap: mark swap address space ro and add context\ndebug check\") made the swap address space read-only. It may lead to\nkernel panic if arch_prepare_to_swap returns a failure under heavy memory\npressure as follows,\n\nel1_abort+0x40/0x64\nel1h_64_sync_handler+0x48/0xcc\nel1h_64_sync+0x84/0x88\nerrseq_set+0x4c/0xb8 (P)\n__filemap_set_wb_err+0x20/0xd0\nshrink_folio_list+0xc20/0x11cc\nevict_folios+0x1520/0x1be4\ntry_to_shrink_lruvec+0x27c/0x3dc\nshrink_one+0x9c/0x228\nshrink_node+0xb3c/0xeac\ndo_try_to_free_pages+0x170/0x4f0\ntry_to_free_pages+0x334/0x534\n__alloc_pages_direct_reclaim+0x90/0x158\n__alloc_pages_slowpath+0x334/0x588\n__alloc_frozen_pages_noprof+0x224/0x2fc\n__folio_alloc_noprof+0x14/0x64\nvma_alloc_zeroed_movable_folio+0x34/0x44\ndo_pte_missing+0xad4/0x1040\nhandle_mm_fault+0x4a4/0x790\ndo_page_fault+0x288/0x5f8\ndo_translation_fault+0x38/0x54\ndo_mem_abort+0x54/0xa8\n\nRestore swap address space as not ro to avoid the panic."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nmm, swap: restaurar el atributo swap_space para evitar un kernel panic\n\nEl commit 8b47299a411a ('mm, swap: marcar el espacio de direcciones de swap como ro y añadir verificación de depuración de contexto') hizo que el espacio de direcciones de swap fuera de solo lectura. Esto puede llevar a un kernel panic si arch_prepare_to_swap devuelve un fallo bajo una fuerte presión de memoria, como sigue,\n\nel1_abort+0x40/0x64\nel1h_64_sync_handler+0x48/0xcc\nel1h_64_sync+0x84/0x88\nerrseq_set+0x4c/0xb8 (P)\n__filemap_set_wb_err+0x20/0xd0\nshrink_folio_list+0xc20/0x11cc\nevict_folios+0x1520/0x1be4\ntry_to_shrink_lruvec+0x27c/0x3dc\nshrink_one+0x9c/0x228\nshrink_node+0xb3c/0xeac\ndo_try_to_free_pages+0x170/0x4f0\ntry_to_free_pages+0x334/0x534\n__alloc_pages_direct_reclaim+0x90/0x158\n__alloc_pages_slowpath+0x334/0x588\n__alloc_frozen_pages_noprof+0x224/0x2fc\n__folio_alloc_noprof+0x14/0x64\nvma_alloc_zeroed_movable_folio+0x34/0x44\ndo_pte_missing+0xad4/0x1040\nhandle_mm_fault+0x4a4/0x790\ndo_page_fault+0x288/0x5f8\ndo_translation_fault+0x38/0x54\ndo_mem_abort+0x54/0xa8\n\nRestaurar el espacio de direcciones de swap como no ro para evitar el pánico."
}
],
"lastModified": "2026-06-17T10:21:06.563",
"configurations": [
{
"nodes": [
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