dm-bufio: don't schedule in atomic context

{
  "id": "10546cbe57d92a8853c9998c2d4d2cd7a6ccf3a2a554f3c614c60f7deb412004",
  "url": "https://osv.dev/vulnerability/CVE-2025-37928",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "dm-bufio: don't schedule in atomic context",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: dm-bufio: don't schedule in atomic context A BUG was reported as below when CONFIG_DEBUG_ATOMIC_SLEEP and try_verify_in_tasklet are enabled. [ 129.444685][ T934] BUG: sleeping function called from invalid context at drivers/md/dm-bufio.c:2421 [ 129.444723][ T934] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 934, name: kworker/1:4 [ 129.444740][ T934] preempt_count: 201, expected: 0 [ 129.444756][ T934] RCU nest depth: 0, expected: 0 [ 129.444781][ T934] Preemption disabled at: [ 129.444789][ T934] [] shrink_work+0x21c/0x248 [ 129.445167][ T934] kernel BUG at kernel/sched/walt/walt_debug.c:16! [ 129.445183][ T934] Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP [ 129.445204][ T934] Skip md ftrace buffer dump for: 0x1609e0 [ 129.447348][ T934] CPU: 1 PID: 934 Comm: kworker/1:4 Tainted: G W OE 6.6.56-android15-8-o-g6f82312b30b9-debug #1 1400000003000000474e5500b3187743670464e8 [ 129.447362][ T934] Hardware name: Qualcomm Technologies, Inc. Parrot QRD, Alpha-M (DT) [ 129.447373][ T934] Workqueue: dm_bufio_cache shrink_work [ 129.447394][ T934] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 129.447406][ T934] pc : android_rvh_schedule_bug+0x0/0x8 [sched_walt_debug] [ 129.447435][ T934] lr : __traceiter_android_rvh_schedule_bug+0x44/0x6c [ 129.447451][ T934] sp : ffffffc0843dbc90 [ 129.447459][ T934] x29: ffffffc0843dbc90 x28: ffffffffffffffff x27: 0000000000000c8b [ 129.4",
    "evidence": "osv:CVE-2025-37928",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.138",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.90",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.28",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.14.6",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2025-37928",
      "aliases": [
        "CVE-2025-37928"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "7cd326747f46ffe1c7bff5682e97dfbcb98990ec"
                },
                {
                  "fixed": "a99f5bf4f7197009859dbce14c12f8e2ce5a5a69"
                },
                {
                  "fixed": "c8c83052283bcf2fdd467a33d1d2bd5ba36e935a"
                },
                {
                  "fixed": "f45108257280e0a1cc951ce254853721b40c0812"
                },
                {
                  "fixed": "69a37b3ba85088fc6b903b8e1db7f0a1d4d0b52d"
                },
                {
                  "fixed": "a3d8f0a7f5e8b193db509c7191fefeed3533fc44"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-37928.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "4.9.0"
                },
                {
                  "fixed": "6.1.138"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.90"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.28"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.14.6"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-37928.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:27.073494636Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/69a37b3ba85088fc6b903b8e1db7f0a1d4d0b52d",
        "https://git.kernel.org/stable/c/a3d8f0a7f5e8b193db509c7191fefeed3533fc44",
        "https://git.kernel.org/stable/c/a99f5bf4f7197009859dbce14c12f8e2ce5a5a69",
        "https://git.kernel.org/stable/c/c8c83052283bcf2fdd467a33d1d2bd5ba36e935a",
        "https://git.kernel.org/stable/c/f45108257280e0a1cc951ce254853721b40c0812",
        "https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37928.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-37928",
        "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/2025/37xxx/CVE-2025-37928.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-37928",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 493167,
  "published_at": "2025-05-20T15:21:54.592+00:00"
}