mm/vmalloc: fix vmalloc which may return null if called with __GFP_NOFAIL

{
  "id": "5d3397fe634f2b43042860b2d36b6aedda6f2d8a5aa468100f706f3a28a53cd1",
  "url": "https://osv.dev/vulnerability/CVE-2024-39474",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "mm/vmalloc: fix vmalloc which may return null if called with __GFP_NOFAIL",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: mm/vmalloc: fix vmalloc which may return null if called with __GFP_NOFAIL commit a421ef303008 (\"mm: allow !GFP_KERNEL allocations for kvmalloc\") includes support for __GFP_NOFAIL, but it presents a conflict with commit dd544141b9eb (\"vmalloc: back off when the current task is OOM-killed\"). A possible scenario is as follows: process-a __vmalloc_node_range(GFP_KERNEL | __GFP_NOFAIL) __vmalloc_area_node() vm_area_alloc_pages() --> oom-killer send SIGKILL to process-a if (fatal_signal_pending(current)) break; --> return NULL; To fix this, do not check fatal_signal_pending() in vm_area_alloc_pages() if __GFP_NOFAIL set. This issue occurred during OPLUS KASAN TEST. Below is part of the log -> oom-killer sends signal to process [65731.222840] [ T1308] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0,global_oom,task_memcg=/apps/uid_10198,task=gs.intelligence,pid=32454,uid=10198 [65731.259685] [T32454] Call trace: [65731.259698] [T32454] dump_backtrace+0xf4/0x118 [65731.259734] [T32454] show_stack+0x18/0x24 [65731.259756] [T32454] dump_stack_lvl+0x60/0x7c [65731.259781] [T32454] dump_stack+0x18/0x38 [65731.259800] [T32454] mrdump_common_die+0x250/0x39c [mrdump] [65731.259936] [T32454] ipanic_die+0x20/0x34 [mrdump] [65731.260019] [T32454] atomic_notifier_call_chain+0xb4/0xfc [65731.260047] [T32454] notify_die+0x114/0x198 [65731.260073] [T32454] die+0xf4/0x5b4 [65731.260098] [T32454] die_kerne",
    "evidence": "osv:CVE-2024-39474",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.95",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.34",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.9.5",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2024-39474",
      "aliases": [
        "CVE-2024-39474"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "9376130c390a76fac2788a5d6e1a149017b4ab50"
                },
                {
                  "fixed": "198a80833e3421d4c9820a4ae907120adf598c91"
                },
                {
                  "fixed": "c55d3564ad25ce87ab7cc6af251f9574faebd8da"
                },
                {
                  "fixed": "758678b65164b2158fc1de411092191cb3c394d4"
                },
                {
                  "fixed": "8e0545c83d672750632f46e3f9ad95c48c91a0fc"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-39474.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.17.0"
                },
                {
                  "fixed": "6.1.95"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.34"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.9.5"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-39474.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:33.578303937Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/198a80833e3421d4c9820a4ae907120adf598c91",
        "https://git.kernel.org/stable/c/758678b65164b2158fc1de411092191cb3c394d4",
        "https://git.kernel.org/stable/c/8e0545c83d672750632f46e3f9ad95c48c91a0fc",
        "https://git.kernel.org/stable/c/c55d3564ad25ce87ab7cc6af251f9574faebd8da",
        "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/39xxx/CVE-2024-39474.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-39474",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/39xxx/CVE-2024-39474.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-39474",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 500262,
  "published_at": "2024-07-05T06:55:05.178+00:00"
}