CVE-2025-38094 (GCVE-0-2025-38094)
Vulnerability from cvelistv5
Published
2025-07-03 07:44
Modified
2025-07-03 07:44
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: net: cadence: macb: Fix a possible deadlock in macb_halt_tx. There is a situation where after THALT is set high, TGO stays high as well. Because jiffies are never updated, as we are in a context with interrupts disabled, we never exit that loop and have a deadlock. That deadlock was noticed on a sama5d4 device that stayed locked for days. Use retries instead of jiffies so that the timeout really works and we do not have a deadlock anymore.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0772a608d799ac0d127c0a36047a2725777aba9d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1d60c0781c1bbeaa1196b0d8aad5c435f06cb7c4
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3e64d35475aa21d13dab71da51de51923c1a3a48
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/64675a9c00443b2e8af42af08c38fc1b78b68ba2
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/84f98955a9de0e0f591df85aa1a44f3ebcf1cb37
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/aace6b63892ce8307e502a60fe2f5a4bc6e1cfe7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c92d6089d8ad7d4d815ebcedee3f3907b539ff1f
Impacted products
Vendor Product Version
Linux Linux Version: e86cd53afc5907f7c221b709916e2dd354e14691
Version: e86cd53afc5907f7c221b709916e2dd354e14691
Version: e86cd53afc5907f7c221b709916e2dd354e14691
Version: e86cd53afc5907f7c221b709916e2dd354e14691
Version: e86cd53afc5907f7c221b709916e2dd354e14691
Version: e86cd53afc5907f7c221b709916e2dd354e14691
Version: e86cd53afc5907f7c221b709916e2dd354e14691
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   Linux Linux Version: 3.8
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{
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          "programFiles": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: cadence: macb: Fix a possible deadlock in macb_halt_tx.\n\nThere is a situation where after THALT is set high, TGO stays high as\nwell. Because jiffies are never updated, as we are in a context with\ninterrupts disabled, we never exit that loop and have a deadlock.\n\nThat deadlock was noticed on a sama5d4 device that stayed locked for days.\n\nUse retries instead of jiffies so that the timeout really works and we do\nnot have a deadlock anymore."
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      "providerMetadata": {
        "dateUpdated": "2025-07-03T07:44:17.442Z",
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    "dateReserved": "2025-04-16T04:51:23.984Z",
    "dateUpdated": "2025-07-03T07:44:17.442Z",
    "state": "PUBLISHED"
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  }
}


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