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CVE-2025-39908 (GCVE-0-2025-39908)

Vulnerability from cvelistv5 – Published: 2025-10-01 07:44 – Updated: 2026-08-05 12:06
VLAI
Title
net: dev_ioctl: take ops lock in hwtstamp lower paths
Summary
In the Linux kernel, the following vulnerability has been resolved: net: dev_ioctl: take ops lock in hwtstamp lower paths ndo hwtstamp callbacks are expected to run under the per-device ops lock. Make the lower get/set paths consistent with the rest of ndo invocations. Kernel log: WARNING: CPU: 13 PID: 51364 at ./include/net/netdev_lock.h:70 __netdev_update_features+0x4bd/0xe60 ... RIP: 0010:__netdev_update_features+0x4bd/0xe60 ... Call Trace: <TASK> netdev_update_features+0x1f/0x60 mlx5_hwtstamp_set+0x181/0x290 [mlx5_core] mlx5e_hwtstamp_set+0x19/0x30 [mlx5_core] dev_set_hwtstamp_phylib+0x9f/0x220 dev_set_hwtstamp_phylib+0x9f/0x220 dev_set_hwtstamp+0x13d/0x240 dev_ioctl+0x12f/0x4b0 sock_ioctl+0x171/0x370 __x64_sys_ioctl+0x3f7/0x900 ? __sys_setsockopt+0x69/0xb0 do_syscall_64+0x6f/0x2e0 entry_SYSCALL_64_after_hwframe+0x4b/0x53 ... </TASK> .... ---[ end trace 0000000000000000 ]--- Note that the mlx5_hwtstamp_set and mlx5e_hwtstamp_set functions shown in the trace come from an in progress patch converting the legacy ioctl to ndo_hwtstamp_get/set and are not present in mainline.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-14 17:42 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: ffb7ed19ac0a9fa9ea79af1d7b42c03a10da98a5 , < 2d92fa0cdc02291de57f72170e8b60cef0cf5372 (git)
Affected: ffb7ed19ac0a9fa9ea79af1d7b42c03a10da98a5 , < 686cab5a18e443e1d5f2abb17bed45837836425f (git)
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Linux Linux Affected: 6.15
Unaffected: 0 , < 6.15 (semver)
Unaffected: 6.16.8 , ≤ 6.16.* (semver)
Unaffected: 6.17 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.5, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-39908\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-01-14T17:42:37.187417Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"description\": \"CWE-noinfo Not enough information\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-01-14T17:42:32.967Z\"}}], \"cna\": {\"title\": \"net: dev_ioctl: take ops lock in hwtstamp lower paths\", \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 7.8, \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\"}}], \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"ffb7ed19ac0a9fa9ea79af1d7b42c03a10da98a5\", \"lessThan\": \"2d92fa0cdc02291de57f72170e8b60cef0cf5372\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ffb7ed19ac0a9fa9ea79af1d7b42c03a10da98a5\", \"lessThan\": \"686cab5a18e443e1d5f2abb17bed45837836425f\", \"versionType\": \"git\"}], \"programFiles\": [\"net/core/dev_ioctl.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.15\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.15\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.16.8\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.16.*\"}, {\"status\": \"unaffected\", \"version\": \"6.17\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/core/dev_ioctl.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/2d92fa0cdc02291de57f72170e8b60cef0cf5372\"}, {\"url\": \"https://git.kernel.org/stable/c/686cab5a18e443e1d5f2abb17bed45837836425f\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet: dev_ioctl: take ops lock in hwtstamp lower paths\\n\\nndo hwtstamp callbacks are expected to run under the per-device ops\\nlock. Make the lower get/set paths consistent with the rest of ndo\\ninvocations.\\n\\nKernel log:\\nWARNING: CPU: 13 PID: 51364 at ./include/net/netdev_lock.h:70 __netdev_update_features+0x4bd/0xe60\\n...\\nRIP: 0010:__netdev_update_features+0x4bd/0xe60\\n...\\nCall Trace:\\n\u003cTASK\u003e\\nnetdev_update_features+0x1f/0x60\\nmlx5_hwtstamp_set+0x181/0x290 [mlx5_core]\\nmlx5e_hwtstamp_set+0x19/0x30 [mlx5_core]\\ndev_set_hwtstamp_phylib+0x9f/0x220\\ndev_set_hwtstamp_phylib+0x9f/0x220\\ndev_set_hwtstamp+0x13d/0x240\\ndev_ioctl+0x12f/0x4b0\\nsock_ioctl+0x171/0x370\\n__x64_sys_ioctl+0x3f7/0x900\\n? __sys_setsockopt+0x69/0xb0\\ndo_syscall_64+0x6f/0x2e0\\nentry_SYSCALL_64_after_hwframe+0x4b/0x53\\n...\\n\u003c/TASK\u003e\\n....\\n---[ end trace 0000000000000000 ]---\\n\\nNote that the mlx5_hwtstamp_set and mlx5e_hwtstamp_set functions shown\\nin the trace come from an in progress patch converting the legacy ioctl\\nto ndo_hwtstamp_get/set and are not present in mainline.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.16.8\", \"versionStartIncluding\": \"6.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.17\", \"versionStartIncluding\": \"6.15\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-07-30T05:58:25.415Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-39908\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-07-30T05:58:25.415Z\", \"dateReserved\": \"2025-04-16T07:20:57.146Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-10-01T07:44:31.904Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.