CVE-2025-22010 (GCVE-0-2025-22010)
Vulnerability from cvelistv5
Published
2025-04-08 08:18
Modified
2025-05-04 07:27
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: RDMA/hns: Fix soft lockup during bt pages loop Driver runs a for-loop when allocating bt pages and mapping them with buffer pages. When a large buffer (e.g. MR over 100GB) is being allocated, it may require a considerable loop count. This will lead to soft lockup: watchdog: BUG: soft lockup - CPU#27 stuck for 22s! ... Call trace: hem_list_alloc_mid_bt+0x124/0x394 [hns_roce_hw_v2] hns_roce_hem_list_request+0xf8/0x160 [hns_roce_hw_v2] hns_roce_mtr_create+0x2e4/0x360 [hns_roce_hw_v2] alloc_mr_pbl+0xd4/0x17c [hns_roce_hw_v2] hns_roce_reg_user_mr+0xf8/0x190 [hns_roce_hw_v2] ib_uverbs_reg_mr+0x118/0x290 watchdog: BUG: soft lockup - CPU#35 stuck for 23s! ... Call trace: hns_roce_hem_list_find_mtt+0x7c/0xb0 [hns_roce_hw_v2] mtr_map_bufs+0xc4/0x204 [hns_roce_hw_v2] hns_roce_mtr_create+0x31c/0x3c4 [hns_roce_hw_v2] alloc_mr_pbl+0xb0/0x160 [hns_roce_hw_v2] hns_roce_reg_user_mr+0x108/0x1c0 [hns_roce_hw_v2] ib_uverbs_reg_mr+0x120/0x2bc Add a cond_resched() to fix soft lockup during these loops. In order not to affect the allocation performance of normal-size buffer, set the loop count of a 100GB MR as the threshold to call cond_resched().
References
Impacted products
Vendor Product Version
Linux Linux Version: 38389eaa4db192648916464b60f6086d6bbaa6de
Version: 38389eaa4db192648916464b60f6086d6bbaa6de
Version: 38389eaa4db192648916464b60f6086d6bbaa6de
Version: 38389eaa4db192648916464b60f6086d6bbaa6de
Version: 38389eaa4db192648916464b60f6086d6bbaa6de
Version: 38389eaa4db192648916464b60f6086d6bbaa6de
Version: 38389eaa4db192648916464b60f6086d6bbaa6de
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/hns: Fix soft lockup during bt pages loop\n\nDriver runs a for-loop when allocating bt pages and mapping them with\nbuffer pages. When a large buffer (e.g. MR over 100GB) is being allocated,\nit may require a considerable loop count. This will lead to soft lockup:\n\n        watchdog: BUG: soft lockup - CPU#27 stuck for 22s!\n        ...\n        Call trace:\n         hem_list_alloc_mid_bt+0x124/0x394 [hns_roce_hw_v2]\n         hns_roce_hem_list_request+0xf8/0x160 [hns_roce_hw_v2]\n         hns_roce_mtr_create+0x2e4/0x360 [hns_roce_hw_v2]\n         alloc_mr_pbl+0xd4/0x17c [hns_roce_hw_v2]\n         hns_roce_reg_user_mr+0xf8/0x190 [hns_roce_hw_v2]\n         ib_uverbs_reg_mr+0x118/0x290\n\n        watchdog: BUG: soft lockup - CPU#35 stuck for 23s!\n        ...\n        Call trace:\n         hns_roce_hem_list_find_mtt+0x7c/0xb0 [hns_roce_hw_v2]\n         mtr_map_bufs+0xc4/0x204 [hns_roce_hw_v2]\n         hns_roce_mtr_create+0x31c/0x3c4 [hns_roce_hw_v2]\n         alloc_mr_pbl+0xb0/0x160 [hns_roce_hw_v2]\n         hns_roce_reg_user_mr+0x108/0x1c0 [hns_roce_hw_v2]\n         ib_uverbs_reg_mr+0x120/0x2bc\n\nAdd a cond_resched() to fix soft lockup during these loops. In order not\nto affect the allocation performance of normal-size buffer, set the loop\ncount of a 100GB MR as the threshold to call cond_resched()."
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        "dateUpdated": "2025-05-04T07:27:32.747Z",
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    "cveId": "CVE-2025-22010",
    "datePublished": "2025-04-08T08:18:00.430Z",
    "dateReserved": "2024-12-29T08:45:45.804Z",
    "dateUpdated": "2025-05-04T07:27:32.747Z",
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This will lead to soft lockup:\\n\\n        watchdog: BUG: soft lockup - CPU#27 stuck for 22s!\\n        ...\\n        Call trace:\\n         hem_list_alloc_mid_bt+0x124/0x394 [hns_roce_hw_v2]\\n         hns_roce_hem_list_request+0xf8/0x160 [hns_roce_hw_v2]\\n         hns_roce_mtr_create+0x2e4/0x360 [hns_roce_hw_v2]\\n         alloc_mr_pbl+0xd4/0x17c [hns_roce_hw_v2]\\n         hns_roce_reg_user_mr+0xf8/0x190 [hns_roce_hw_v2]\\n         ib_uverbs_reg_mr+0x118/0x290\\n\\n        watchdog: BUG: soft lockup - CPU#35 stuck for 23s!\\n        ...\\n        Call trace:\\n         hns_roce_hem_list_find_mtt+0x7c/0xb0 [hns_roce_hw_v2]\\n         mtr_map_bufs+0xc4/0x204 [hns_roce_hw_v2]\\n         hns_roce_mtr_create+0x31c/0x3c4 [hns_roce_hw_v2]\\n         alloc_mr_pbl+0xb0/0x160 [hns_roce_hw_v2]\\n         hns_roce_reg_user_mr+0x108/0x1c0 [hns_roce_hw_v2]\\n         ib_uverbs_reg_mr+0x120/0x2bc\\n\\nAdd a cond_resched() to fix soft lockup during these loops. In order not\\nto affect the allocation performance of normal-size buffer, set the loop\\ncount of a 100GB MR as the threshold to call cond_resched().\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: RDMA/hns: Se corrige el bloqueo suave durante el bucle de p\u00e1ginas bt. El controlador ejecuta un bucle for al asignar p\u00e1ginas bt y mapearlas con p\u00e1ginas de b\u00fafer. Al asignar un b\u00fafer grande (por ejemplo, un MR de m\u00e1s de 100 GB), puede requerirse un n\u00famero considerable de bucles. Esto provocar\u00e1 un bloqueo suave: watchdog: BUG: bloqueo suave - \u00a1CPU n.\u00ba 27 bloqueada durante 22 s! ... Rastreo de llamadas: hem_list_alloc_mid_bt+0x124/0x394 [hns_roce_hw_v2] hns_roce_hem_list_request+0xf8/0x160 [hns_roce_hw_v2] hns_roce_mtr_create+0x2e4/0x360 [hns_roce_hw_v2] alloc_mr_pbl+0xd4/0x17c [hns_roce_hw_v2] hns_roce_reg_user_mr+0xf8/0x190 [hns_roce_hw_v2] ib_uverbs_reg_mr+0x118/0x290 perro guardi\u00e1n: ERROR: bloqueo suave - \u00a1CPU n.\u00ba 35 bloqueada durante 23 s! ... Seguimiento de llamadas: hns_roce_hem_list_find_mtt+0x7c/0xb0 [hns_roce_hw_v2] mtr_map_bufs+0xc4/0x204 [hns_roce_hw_v2] hns_roce_mtr_create+0x31c/0x3c4 [hns_roce_hw_v2] alloc_mr_pbl+0xb0/0x160 [hns_roce_hw_v2] hns_roce_reg_user_mr+0x108/0x1c0 [hns_roce_hw_v2] ib_uverbs_reg_mr+0x120/0x2bc Agregue un cond_resched() para corregir el bloqueo suave durante estos bucles. Para no afectar el rendimiento de asignaci\u00f3n de un b\u00fafer de tama\u00f1o normal, establezca el recuento de bucles de un MR de 100 GB como el umbral para llamar a cond_resched().\"}],\"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\":\"CWE-667\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.3\",\"versionEndExcluding\":\"6.1.132\",\"matchCriteriaId\":\"63D8EBD5-447E-46E5-A557-067E0CC053F1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.85\",\"matchCriteriaId\":\"BCB56F36-C998-496A-A2E4-D9E0BB3A5BFC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.12.21\",\"matchCriteriaId\":\"3B63C450-D73B-4A53-9861-98E25C16E842\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.13\",\"versionEndExcluding\":\"6.13.9\",\"matchCriteriaId\":\"FAECBE4D-58CF-4836-BBAB-5E28B800A778\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"186716B6-2B66-4BD0-852E-D48E71C0C85F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"0D3E781C-403A-498F-9DA9-ECEE50F41E75\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.14:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"66619FB8-0AAF-4166-B2CF-67B24143261D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.14:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"D3D6550E-6679-4560-902D-AF52DCFE905B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.14:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"45B90F6B-BEC7-4D4E-883A-9DBADE021750\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.14:rc6:*:*:*:*:*:*\",\"matchCriteriaId\":\"1759FFB7-531C-41B1-9AE1-FD3D80E0D920\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.14:rc7:*:*:*:*:*:*\",\"matchCriteriaId\":\"AD948719-8628-4421-A340-1066314BBD4A\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/13a52f6c9ff99f7d88f81da535cb4e85eade662b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/25655580136de59ec89f09089dd28008ea440fc9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/4104b0023ff66b5df900d23dbf38310893deca79\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/461eb4ddede266df8f181f578732bb01742c3fd6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/975355faba56c0751292ed15a90c3e2c7dc0aad6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/9ab20fec7a1ce3057ad86afd27bfd08420b7cd11\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/efe544462fc0b499725364f90bd0f8bbf16f861a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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