cve-2024-45027
Vulnerability from cvelistv5
Published
2024-09-11 15:13
Modified
2024-12-19 09:20
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: usb: xhci: Check for xhci->interrupters being allocated in xhci_mem_clearup() If xhci_mem_init() fails, it calls into xhci_mem_cleanup() to mop up the damage. If it fails early enough, before xhci->interrupters is allocated but after xhci->max_interrupters has been set, which happens in most (all?) cases, things get uglier, as xhci_mem_cleanup() unconditionally derefences xhci->interrupters. With prejudice. Gate the interrupt freeing loop with a check on xhci->interrupters being non-NULL. Found while debugging a DMA allocation issue that led the XHCI driver on this exact path.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/770cacc75b0091ece17349195d72133912c1ca7cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dcdb52d948f3a17ccd3fce757d9bd981d7c32039Patch
Impacted products
Vendor Product Version
Linux Linux Version: 6.8
Show details on NVD website

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              "content": {
                "id": "CVE-2024-45027",
                "options": [
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                    "Exploitation": "none"
                  },
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                    "Automatable": "no"
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                    "Technical Impact": "partial"
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                "role": "CISA Coordinator",
                "timestamp": "2024-09-29T15:46:24.531317Z",
                "version": "2.0.3"
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    "cna": {
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          "product": "Linux",
          "programFiles": [
            "drivers/usb/host/xhci-mem.c"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: xhci: Check for xhci-\u003einterrupters being allocated in xhci_mem_clearup()\n\nIf xhci_mem_init() fails, it calls into xhci_mem_cleanup() to mop\nup the damage. If it fails early enough, before xhci-\u003einterrupters\nis allocated but after xhci-\u003emax_interrupters has been set, which\nhappens in most (all?) cases, things get uglier, as xhci_mem_cleanup()\nunconditionally derefences xhci-\u003einterrupters. With prejudice.\n\nGate the interrupt freeing loop with a check on xhci-\u003einterrupters\nbeing non-NULL.\n\nFound while debugging a DMA allocation issue that led the XHCI driver\non this exact path."
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        "dateUpdated": "2024-12-19T09:20:30.349Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/770cacc75b0091ece17349195d72133912c1ca7c"
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          "url": "https://git.kernel.org/stable/c/dcdb52d948f3a17ccd3fce757d9bd981d7c32039"
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      ],
      "title": "usb: xhci: Check for xhci-\u003einterrupters being allocated in xhci_mem_clearup()",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2024-45027",
    "datePublished": "2024-09-11T15:13:59.032Z",
    "dateReserved": "2024-08-21T05:34:56.685Z",
    "dateUpdated": "2024-12-19T09:20:30.349Z",
    "state": "PUBLISHED"
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