spmi: Add a check for remove callback when removing a SPMI driver

{
  "id": "3f876b2b1ab0b85777f12e17233dce8f09ef444e6479b19d662d63f25ff9f582",
  "url": "https://osv.dev/vulnerability/CVE-2023-54044",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "spmi: Add a check for remove callback when removing a SPMI driver",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: spmi: Add a check for remove callback when removing a SPMI driver When removing a SPMI driver, there can be a crash due to NULL pointer dereference if it does not have a remove callback defined. This is one such call trace observed when removing the QCOM SPMI PMIC driver: dump_backtrace.cfi_jt+0x0/0x8 dump_stack_lvl+0xd8/0x16c panic+0x188/0x498 __cfi_slowpath+0x0/0x214 __cfi_slowpath+0x1dc/0x214 spmi_drv_remove+0x16c/0x1e0 device_release_driver_internal+0x468/0x79c driver_detach+0x11c/0x1a0 bus_remove_driver+0xc4/0x124 driver_unregister+0x58/0x84 cleanup_module+0x1c/0xc24 [qcom_spmi_pmic] __do_sys_delete_module+0x3ec/0x53c __arm64_sys_delete_module+0x18/0x28 el0_svc_common+0xdc/0x294 el0_svc+0x38/0x9c el0_sync_handler+0x8c/0xf0 el0_sync+0x1b4/0x1c0 If a driver has all its resources allocated through devm_() APIs and does not need any other explicit cleanup, it would not require a remove callback to be defined. Hence, add a check for remove callback presence before calling it when removing a SPMI driver.",
    "evidence": "osv:CVE-2023-54044",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
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        "prerequisites": [],
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    "severity": "unknown",
    "structured": {
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      "aliases": [
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      "modified": "2026-10-28T02:30:44.536177590Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0f3ef30c1c05502f5de3b73b3715d5994845c1b4",
        "https://git.kernel.org/stable/c/428cc252701d6864151f3a296ffc23e1e49a7408",
        "https://git.kernel.org/stable/c/54dda732225555dc6d660e95793c54a0a44b612c",
        "https://git.kernel.org/stable/c/699949219e35fe29fd42ccf8cd92c989c3d15109",
        "https://git.kernel.org/stable/c/af763c29b9e7040fedd0077bca053b101438a3a4",
        "https://git.kernel.org/stable/c/b56eef3e16d888883fefab47425036de80dd38fc",
        "https://git.kernel.org/stable/c/b95a69214daea4aab1c8bad96571d988a62e2c97",
        "https://git.kernel.org/stable/c/c45ab3ab9c371c9ac22bbe1217e5abb2e55a3d4b",
        "https://git.kernel.org/stable/c/ee0b6146317a98bfec848d7bde5586beb245a38f",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54044.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-54044",
        "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/2023/54xxx/CVE-2023-54044.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-54044",
        "evidence": "/id"
      }
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    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 512524,
  "published_at": "2025-12-24T12:22:56.072+00:00"
}