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CVE-2026-15449

A time-of-check to time-of-use (TOCTOU) flaw in the illumos data-link pseudo-driver (dld) affects handling of the DLDIOC_GETMACPROP and DLDIOC_SETMACPROP ioctls on /dev/dld. drv_ioc_prop_common() in usr/src/uts/common/io/dld/dld_drv.c copies the dld_ioc_macprop_t ioctl header in once to read its pr_valsize field, sizes and allocates a kernel heap buffer from that value, and then copies the full request in a second time from the same unprivileged user address. A concurrent thread can enlarge pr_v
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:1c78655d6907797a9138b999cf9634fa312270eca621594f07e8bfcb4a4798e8
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 3 assertions

{"defaultStatus":"affected","product":"SmartOS","vendor":"Triton Data Center","versions":[{"changes":[{"at":"20260709","status":"unaffected"}],"lessThan":"202060709","status":"affected","version":"any","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:32b9584486eb17f5f9267ab51dbc30cb82c0b9fb1a0740acf924c73f695597e6 · sha256:0daa928f59f2cdd5… · /containers/cna/affected/2

{"defaultStatus":"affected","modules":["kernel","dld"],"product":"illumos-gate","programFiles":["usr/src/uts/common/io/dld/dld_drv.c","usr/src/uts/common/sys/dld.h"],"repo":"https://github.com/illumos/illumos-gate","vendor":"illumos","versions":[{"changes":[{"at":"6959feb5b430411a4809b06c53dcdb42fb525eac","status":"unaffected"}],"lessThan":"6959feb5b430411a4809b06c53dcdb42fb525eac","status":"affected","version":"eae72b5b807baa9116e64502cbb278edf15f3146","versionType":"git"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:32b9584486eb17f5f9267ab51dbc30cb82c0b9fb1a0740acf924c73f695597e6 · sha256:0daa928f59f2cdd5… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"OmniOS","vendor":"OmniOS","versions":[{"lessThan":"r151054","status":"affected","version":"any","versionType":"custom"},{"changes":[{"at":"r151058j","status":"unaffected"}],"lessThan":"r151058j","status":"affected","version":"r151058","versionType":"custom"},{"changes":[{"at":"r151056aj","status":"unaffected"}],"lessThan":"r151056aj","status":"affected","version":"r151056","versionType":"custom"},{"changes":[{"at":"r151054bj","status":"unaffected"}],"lessThan":"r151054bj","status":"affected","version":"r151054","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:32b9584486eb17f5f9267ab51dbc30cb82c0b9fb1a0740acf924c73f695597e6 · sha256:0daa928f59f2cdd5… · /containers/cna/affected/1
cwe · 2 assertions

{"cweId":"CWE-367","description":"CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:32b9584486eb17f5f9267ab51dbc30cb82c0b9fb1a0740acf924c73f695597e6 · sha256:0daa928f59f2cdd5… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-122","description":"CWE-122 Heap-based Buffer Overflow","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:32b9584486eb17f5f9267ab51dbc30cb82c0b9fb1a0740acf924c73f695597e6 · sha256:0daa928f59f2cdd5… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

3 source assertions
{"defaultStatus":"affected","product":"SmartOS","vendor":"Triton Data Center","versions":[{"changes":[{"at":"20260709","status":"unaffected"}],"lessThan":"202060709","status":"affected","version":"any","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:32b9584486eb17f5f9267ab51dbc30cb82c0b9fb1a0740acf924c73f695597e6 · sha256:0daa928f59f2cdd5… · /containers/cna/affected/2
{"defaultStatus":"affected","modules":["kernel","dld"],"product":"illumos-gate","programFiles":["usr/src/uts/common/io/dld/dld_drv.c","usr/src/uts/common/sys/dld.h"],"repo":"https://github.com/illumos/illumos-gate","vendor":"illumos","versions":[{"changes":[{"at":"6959feb5b430411a4809b06c53dcdb42fb525eac","status":"unaffected"}],"lessThan":"6959feb5b430411a4809b06c53dcdb42fb525eac","status":"affected","version":"eae72b5b807baa9116e64502cbb278edf15f3146","versionType":"git"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:32b9584486eb17f5f9267ab51dbc30cb82c0b9fb1a0740acf924c73f695597e6 · sha256:0daa928f59f2cdd5… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"OmniOS","vendor":"OmniOS","versions":[{"lessThan":"r151054","status":"affected","version":"any","versionType":"custom"},{"changes":[{"at":"r151058j","status":"unaffected"}],"lessThan":"r151058j","status":"affected","version":"r151058","versionType":"custom"},{"changes":[{"at":"r151056aj","status":"unaffected"}],"lessThan":"r151056aj","status":"affected","version":"r151056","versionType":"custom"},{"changes":[{"at":"r151054bj","status":"unaffected"}],"lessThan":"r151054bj","status":"affected","version":"r151054","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:32b9584486eb17f5f9267ab51dbc30cb82c0b9fb1a0740acf924c73f695597e6 · sha256:0daa928f59f2cdd5… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"LOCAL","baseScore":5.8,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact"…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:32b9584486eb17f5f9267ab51dbc30cb82c0b9fb1a0740acf924c73f695597e6 · sha256:0daa928f59f2cdd5… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-367","description":"CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:32b9584486eb17f5f9267ab51dbc30cb82c0b9fb1a0740acf924c73f695597e6 · sha256:0daa928f59f2cdd5… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-122","description":"CWE-122 Heap-based Buffer Overflow","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:32b9584486eb17f5f9267ab51dbc30cb82c0b9fb1a0740acf924c73f695597e6 · sha256:0daa928f59f2cdd5… · /containers/cna/problemTypes/1/descriptions/0

Source references

3 source assertions
{"tags":["patch"],"url":"https://github.com/illumos/illumos-gate/commit/6959feb5b430411a4809b06c53dcdb42fb525eac"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:32b9584486eb17f5f9267ab51dbc30cb82c0b9fb1a0740acf924c73f695597e6 · sha256:0daa928f59f2cdd5… · /containers/cna/references/2
{"tags":["issue-tracking"],"url":"https://illumos.org/issues/18020"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:32b9584486eb17f5f9267ab51dbc30cb82c0b9fb1a0740acf924c73f695597e6 · sha256:0daa928f59f2cdd5… · /containers/cna/references/1
{"tags":["mailing-list"],"url":"https://illumos.topicbox.com/groups/developer/T923147fae854a738-M03c29e1be33dac2a5e3d9535/18020-double-copyin-of-dldioc-consumers"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:32b9584486eb17f5f9267ab51dbc30cb82c0b9fb1a0740acf924c73f695597e6 · sha256:0daa928f59f2cdd5… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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