ghsa-hr95-mwx9-67j6
Vulnerability from github
Published
2025-04-01 18:30
Modified
2025-11-03 21:33
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details

In the Linux kernel, the following vulnerability has been resolved:

slimbus: messaging: Free transaction ID in delayed interrupt scenario

In case of interrupt delay for any reason, slim_do_transfer() returns timeout error but the transaction ID (TID) is not freed. This results into invalid memory access inside qcom_slim_ngd_rx_msgq_cb() due to invalid TID.

Fix the issue by freeing the TID in slim_do_transfer() before returning timeout error to avoid invalid memory access.

Call trace: __memcpy_fromio+0x20/0x190 qcom_slim_ngd_rx_msgq_cb+0x130/0x290 [slim_qcom_ngd_ctrl] vchan_complete+0x2a0/0x4a0 tasklet_action_common+0x274/0x700 tasklet_action+0x28/0x3c _stext+0x188/0x620 run_ksoftirqd+0x34/0x74 smpboot_thread_fn+0x1d8/0x464 kthread+0x178/0x238 ret_from_fork+0x10/0x20 Code: aa0003e8 91000429 f100044a 3940002b (3800150b) ---[ end trace 0fe00bec2b975c99 ]--- Kernel panic - not syncing: Oops: Fatal exception in interrupt.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-21914"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-04-01T16:15:21Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nslimbus: messaging: Free transaction ID in delayed interrupt scenario\n\nIn case of interrupt delay for any reason, slim_do_transfer()\nreturns timeout error but the transaction ID (TID) is not freed.\nThis results into invalid memory access inside\nqcom_slim_ngd_rx_msgq_cb() due to invalid TID.\n\nFix the issue by freeing the TID in slim_do_transfer() before\nreturning timeout error to avoid invalid memory access.\n\nCall trace:\n__memcpy_fromio+0x20/0x190\nqcom_slim_ngd_rx_msgq_cb+0x130/0x290 [slim_qcom_ngd_ctrl]\nvchan_complete+0x2a0/0x4a0\ntasklet_action_common+0x274/0x700\ntasklet_action+0x28/0x3c\n_stext+0x188/0x620\nrun_ksoftirqd+0x34/0x74\nsmpboot_thread_fn+0x1d8/0x464\nkthread+0x178/0x238\nret_from_fork+0x10/0x20\nCode: aa0003e8 91000429 f100044a 3940002b (3800150b)\n---[ end trace 0fe00bec2b975c99 ]---\nKernel panic - not syncing: Oops: Fatal exception in interrupt.",
  "id": "GHSA-hr95-mwx9-67j6",
  "modified": "2025-11-03T21:33:22Z",
  "published": "2025-04-01T18:30:51Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21914"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/09d34c4cbc38485c7514069f25348e439555b282"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0c541c8f6da23e0b92f0a6216d899659a7572074"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/18ae4cee05c310c299ba75d7477dcf34be67aa16"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6abf3d8bb51cbaf886c3f08109a0462890b10db6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a32e5198a9134772eb03f7b72a7849094c55bda9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cec8c0ac173fe5321f03fdb1a09a9cb69bc9a9fe"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dcb0d43ba8eb9517e70b1a0e4b0ae0ab657a0e5a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/faac8e894014e8167471a8e4a5eb35a8fefbb82a"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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