CVE-2024-36925 (GCVE-0-2024-36925)

Vulnerability from cvelistv5 – Published: 2024-05-30 15:29 – Updated: 2026-05-11 20:17
VLAI
Title
swiotlb: initialise restricted pool list_head when SWIOTLB_DYNAMIC=y
Summary
In the Linux kernel, the following vulnerability has been resolved: swiotlb: initialise restricted pool list_head when SWIOTLB_DYNAMIC=y Using restricted DMA pools (CONFIG_DMA_RESTRICTED_POOL=y) in conjunction with dynamic SWIOTLB (CONFIG_SWIOTLB_DYNAMIC=y) leads to the following crash when initialising the restricted pools at boot-time: | Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008 | Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP | pc : rmem_swiotlb_device_init+0xfc/0x1ec | lr : rmem_swiotlb_device_init+0xf0/0x1ec | Call trace: | rmem_swiotlb_device_init+0xfc/0x1ec | of_reserved_mem_device_init_by_idx+0x18c/0x238 | of_dma_configure_id+0x31c/0x33c | platform_dma_configure+0x34/0x80 faddr2line reveals that the crash is in the list validation code: include/linux/list.h:83 include/linux/rculist.h:79 include/linux/rculist.h:106 kernel/dma/swiotlb.c:306 kernel/dma/swiotlb.c:1695 because add_mem_pool() is trying to list_add_rcu() to a NULL 'mem->pools'. Fix the crash by initialising the 'mem->pools' list_head in rmem_swiotlb_device_init() before calling add_mem_pool().
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 17:15 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 1aaa736815eb04f4dae3f0b3e977b2a0677a4cfb , < f2a6b3ed20f2dea4cb645abc6a73c4595662adca (git)
Affected: 1aaa736815eb04f4dae3f0b3e977b2a0677a4cfb , < f62e0fefcdfe2c05ccb1aa80521a69524eea9c84 (git)
Affected: 1aaa736815eb04f4dae3f0b3e977b2a0677a4cfb , < 75961ffb5cb3e5196f19cae7683f35cc88b50800 (git)
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Linux Linux Affected: 6.6
Unaffected: 0 , < 6.6 (semver)
Unaffected: 6.6.31 , ≤ 6.6.* (semver)
Unaffected: 6.8.10 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)
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            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: swiotlb: inicializa el grupo restringido list_head cuando SWIOTLB_DYNAMIC=y El uso de grupos DMA restringidos (CONFIG_DMA_RESTRICTED_POOL=y) junto con SWIOTLB din\u00e1mico (CONFIG_SWIOTLB_DYNAMIC=y) provoca el siguiente bloqueo al inicializar el grupo restringido grupos en el momento del arranque: | No se puede manejar la desreferencia del puntero NULL del kernel en la direcci\u00f3n virtual 0000000000000008 | Error interno: Ups: 0000000096000005 [#1] SMP ANTICIPADO | ordenador personal: rmem_swiotlb_device_init+0xfc/0x1ec | lr: rmem_swiotlb_device_init+0xf0/0x1ec | Rastreo de llamadas: | rmem_swiotlb_device_init+0xfc/0x1ec | of_reserved_mem_device_init_by_idx+0x18c/0x238 | of_dma_configure_id+0x31c/0x33c | platform_dma_configure+0x34/0x80 faddr2line revela que el bloqueo est\u00e1 en el c\u00f3digo de validaci\u00f3n de la lista: include/linux/list.h:83 include/linux/rculist.h:79 include/linux/rculist.h:106 kernel/dma/swiotlb. c:306 kernel/dma/swiotlb.c:1695 porque add_mem_pool() est\u00e1 intentando list_add_rcu() a un NULL \u0027mem-\u0026gt;pools\u0027. Solucione el problema inicializando el list_head \u0027mem-\u0026gt;pools\u0027 en rmem_swiotlb_device_init() antes de llamar a add_mem_pool()."
          }
        ],
        "id": "CVE-2024-36925",
        "lastModified": "2026-06-17T07:37:22.387",
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                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
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      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: swiotlb: initialise restricted pool list_head when SWIOTLB_DYNAMIC=y",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-36925.json",
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    "suse_vex": {
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      "initial_release_date": "2024-06-04T02:25:39Z",
      "product_status:known_not_affected": "385",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-36925",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-36925.json",
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    "vulnrichment": {
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          },
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                    "id": "CVE-2024-36925",
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              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nswiotlb: initialise restricted pool list_head when SWIOTLB_DYNAMIC=y\n\nUsing restricted DMA pools (CONFIG_DMA_RESTRICTED_POOL=y) in conjunction\nwith dynamic SWIOTLB (CONFIG_SWIOTLB_DYNAMIC=y) leads to the following\ncrash when initialising the restricted pools at boot-time:\n\n  | Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008\n  | Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP\n  | pc : rmem_swiotlb_device_init+0xfc/0x1ec\n  | lr : rmem_swiotlb_device_init+0xf0/0x1ec\n  | Call trace:\n  |  rmem_swiotlb_device_init+0xfc/0x1ec\n  |  of_reserved_mem_device_init_by_idx+0x18c/0x238\n  |  of_dma_configure_id+0x31c/0x33c\n  |  platform_dma_configure+0x34/0x80\n\nfaddr2line reveals that the crash is in the list validation code:\n\n  include/linux/list.h:83\n  include/linux/rculist.h:79\n  include/linux/rculist.h:106\n  kernel/dma/swiotlb.c:306\n  kernel/dma/swiotlb.c:1695\n\nbecause add_mem_pool() is trying to list_add_rcu() to a NULL\n\u0027mem-\u003epools\u0027.\n\nFix the crash by initialising the \u0027mem-\u003epools\u0027 list_head in\nrmem_swiotlb_device_init() before calling add_mem_pool()."
            }
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        "cveId": "CVE-2024-36925",
        "datePublished": "2024-05-30T15:29:19.111Z",
        "dateReserved": "2024-05-30T15:25:07.069Z",
        "dateUpdated": "2025-05-04T09:12:11.850Z",
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}



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