CVE Explorer

CVE-2026-64034

In the Linux kernel, the following vulnerability has been resolved: net: mana: Fix TOCTOU double-fetch of hwc_msg_id from DMA buffer In mana_hwc_rx_event_handler(), resp->response.hwc_msg_id is read from DMA-coherent memory and bounds-checked, then mana_hwc_handle_resp() re-reads the same field from the same DMA buffer for test_bit() and pointer arithmetic. DMA-coherent memory is mapped uncacheable on x86 and is shared, unencrypted, in Confidential VMs (SEV-SNP/TDX), so each load goes directl

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:aeb00974962b9ad11b2f1e31e7e115df74d33e0d9cee27c11ee7fc18bb4cb535

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/ethernet/microsoft/mana/hw_channel.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a201c66edf2ebc6cfdc3813a889ba20fecebfae3","status":"affected","version":"ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f","versionType":"git"},{"lessThan":"70ad2dff8d052a85dfef15715b531f38a29108cf","status":"affected","version":"ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f","versionType":"git"},{"lessThan":"566f42fb67a7ebfed6650e407e5b72e6b3e83bf7","status":"affected","version…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:5182286f67592f302b02b65e33423745301160cf5ef1cdfd8ab71a7228c5db2e · sha256:47dbd0f1e0ad9c39… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/ethernet/microsoft/mana/hw_channel.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.13"},{"lessThan":"5.13","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.142","version…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:5182286f67592f302b02b65e33423745301160cf5ef1cdfd8ab71a7228c5db2e · sha256:47dbd0f1e0ad9c39… · /containers/cna/affected/1

Affected products and versions

2 source assertions

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:5182286f67592f302b02b65e33423745301160cf5ef1cdfd8ab71a7228c5db2e · sha256:47dbd0f1e0ad9c39… · /containers/cna/affected/0

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:5182286f67592f302b02b65e33423745301160cf5ef1cdfd8ab71a7228c5db2e · sha256:47dbd0f1e0ad9c39… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion

{"metric":{"baseScore":9.3,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:5182286f67592f302b02b65e33423745301160cf5ef1cdfd8ab71a7228c5db2e · sha256:47dbd0f1e0ad9c39… · /containers/cna/metrics/0/cvssV3_1

Source references

7 source assertions

{"url":"https://git.kernel.org/stable/c/09ec063d87c2dd3fa6f3561361a017bd882e9f37"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:5182286f67592f302b02b65e33423745301160cf5ef1cdfd8ab71a7228c5db2e · sha256:47dbd0f1e0ad9c39… · /containers/cna/references/4

{"url":"https://git.kernel.org/stable/c/35f0f0a2536a4d604b4dbad92c85c4a8fdebb870"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:5182286f67592f302b02b65e33423745301160cf5ef1cdfd8ab71a7228c5db2e · sha256:47dbd0f1e0ad9c39… · /containers/cna/references/6

{"url":"https://git.kernel.org/stable/c/3c4db56ccd13dd020fbf43afabaee74a40ec75e4"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:5182286f67592f302b02b65e33423745301160cf5ef1cdfd8ab71a7228c5db2e · sha256:47dbd0f1e0ad9c39… · /containers/cna/references/5

{"url":"https://git.kernel.org/stable/c/566f42fb67a7ebfed6650e407e5b72e6b3e83bf7"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:5182286f67592f302b02b65e33423745301160cf5ef1cdfd8ab71a7228c5db2e · sha256:47dbd0f1e0ad9c39… · /containers/cna/references/2

{"url":"https://git.kernel.org/stable/c/6180a06bbc99fd9114b8db4be6c4d46e40f046ef"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:5182286f67592f302b02b65e33423745301160cf5ef1cdfd8ab71a7228c5db2e · sha256:47dbd0f1e0ad9c39… · /containers/cna/references/3

{"url":"https://git.kernel.org/stable/c/70ad2dff8d052a85dfef15715b531f38a29108cf"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:5182286f67592f302b02b65e33423745301160cf5ef1cdfd8ab71a7228c5db2e · sha256:47dbd0f1e0ad9c39… · /containers/cna/references/1

{"url":"https://git.kernel.org/stable/c/a201c66edf2ebc6cfdc3813a889ba20fecebfae3"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:5182286f67592f302b02b65e33423745301160cf5ef1cdfd8ab71a7228c5db2e · sha256:47dbd0f1e0ad9c39… · /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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