ghsa-7q77-pgmv-vv9r
Vulnerability from github
Published
2024-04-17 12:32
Modified
2024-10-10 12:31
Details

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

drm/bridge: adv7511: fix crash on irq during probe

Moved IRQ registration down to end of adv7511_probe().

If an IRQ already is pending during adv7511_probe (before adv7511_cec_init) then cec_received_msg_ts could crash using uninitialized data:

Unable to handle kernel read from unreadable memory at virtual address 00000000000003d5
Internal error: Oops: 96000004 [#1] PREEMPT_RT SMP
Call trace:
 cec_received_msg_ts+0x48/0x990 [cec]
 adv7511_cec_irq_process+0x1cc/0x308 [adv7511]
 adv7511_irq_process+0xd8/0x120 [adv7511]
 adv7511_irq_handler+0x1c/0x30 [adv7511]
 irq_thread_fn+0x30/0xa0
 irq_thread+0x14c/0x238
 kthread+0x190/0x1a8
Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2024-26876"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-04-17T11:15:09Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/bridge: adv7511: fix crash on irq during probe\n\nMoved IRQ registration down to end of adv7511_probe().\n\nIf an IRQ already is pending during adv7511_probe\n(before adv7511_cec_init) then cec_received_msg_ts\ncould crash using uninitialized data:\n\n    Unable to handle kernel read from unreadable memory at virtual address 00000000000003d5\n    Internal error: Oops: 96000004 [#1] PREEMPT_RT SMP\n    Call trace:\n     cec_received_msg_ts+0x48/0x990 [cec]\n     adv7511_cec_irq_process+0x1cc/0x308 [adv7511]\n     adv7511_irq_process+0xd8/0x120 [adv7511]\n     adv7511_irq_handler+0x1c/0x30 [adv7511]\n     irq_thread_fn+0x30/0xa0\n     irq_thread+0x14c/0x238\n     kthread+0x190/0x1a8",
  "id": "GHSA-7q77-pgmv-vv9r",
  "modified": "2024-10-10T12:31:11Z",
  "published": "2024-04-17T12:32:04Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26876"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/28a94271bd50e4cf498df0381f776f8ea40a289e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/50f4b57e9a9db4ede9294f39b9e75b5f26bae9b7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/955c1252930677762e0db2b6b9e36938c887445c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aeedaee5ef5468caf59e2bb1265c2116e0c9a924"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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