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CVE-2026-43484

In the Linux kernel, the following vulnerability has been resolved: mmc: core: Avoid bitfield RMW for claim/retune flags Move claimed and retune control flags out of the bitfield word to avoid unrelated RMW side effects in asynchronous contexts. The host->claimed bit shared a word with retune flags. Writes to claimed in __mmc_claim_host() or retune_now in mmc_mq_queue_rq() can overwrite other bits when concurrent updates happen in other contexts, triggering spurious WARN_ON(!host->claimed). C
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:ecfdd19638ecdfbfcaac7cd9d4636bb4ddad93a6a1fc663fcceeb10185d0da00
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["include/linux/mmc/host.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"41dce4dae583a8ce06a7ebf4ce704c46a142957c","status":"affected","version":"6c0cedd1ef9527ef13e66875746570e76a3188a7","versionType":"git"},{"lessThan":"bb7fc2498c3bb25fa6a91f22f4760005325cfbd5","status":"affected","version":"6c0cedd1ef9527ef13e66875746570e76a3188a7","versionType":"git"},{"lessThan":"270277c2ab631044867adb1bd2f2433d3892de6e","status":"affected","version":"6c0cedd1ef9527ef13e66…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:89f321ac04e8d8cf5c5c66efe93008fff92b91da67403a866d36db9fa217ec9c · sha256:e1715fad9bedd4ce… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["include/linux/mmc/host.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.15"},{"lessThan":"4.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.167","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.130","versionType":"semver"},{"lessTh…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:89f321ac04e8d8cf5c5c66efe93008fff92b91da67403a866d36db9fa217ec9c · sha256:e1715fad9bedd4ce… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["include/linux/mmc/host.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"41dce4dae583a8ce06a7ebf4ce704c46a142957c","status":"affected","version":"6c0cedd1ef9527ef13e66875746570e76a3188a7","versionType":"git"},{"lessThan":"bb7fc2498c3bb25fa6a91f22f4760005325cfbd5","status":"affected","version":"6c0cedd1ef9527ef13e66875746570e76a3188a7","versionType":"git"},{"lessThan":"270277c2ab631044867adb1bd2f2433d3892de6e","status":"affected","version":"6c0cedd1ef9527ef13e66…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:89f321ac04e8d8cf5c5c66efe93008fff92b91da67403a866d36db9fa217ec9c · sha256:e1715fad9bedd4ce… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["include/linux/mmc/host.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.15"},{"lessThan":"4.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.167","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.130","versionType":"semver"},{"lessTh…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:89f321ac04e8d8cf5c5c66efe93008fff92b91da67403a866d36db9fa217ec9c · sha256:e1715fad9bedd4ce… · /containers/cna/affected/1

Source references

7 source assertions
{"url":"https://git.kernel.org/stable/c/0e06cc511c61cff1591e5435a207759adcc76b6d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:89f321ac04e8d8cf5c5c66efe93008fff92b91da67403a866d36db9fa217ec9c · sha256:e1715fad9bedd4ce… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/270277c2ab631044867adb1bd2f2433d3892de6e"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:89f321ac04e8d8cf5c5c66efe93008fff92b91da67403a866d36db9fa217ec9c · sha256:e1715fad9bedd4ce… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/41dce4dae583a8ce06a7ebf4ce704c46a142957c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:89f321ac04e8d8cf5c5c66efe93008fff92b91da67403a866d36db9fa217ec9c · sha256:e1715fad9bedd4ce… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/45038e03f15e992c48603fff8c6b1c9be5397ac9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:89f321ac04e8d8cf5c5c66efe93008fff92b91da67403a866d36db9fa217ec9c · sha256:e1715fad9bedd4ce… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/901084c51a0a8fb42a3f37d2e9c62083c495f824"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:89f321ac04e8d8cf5c5c66efe93008fff92b91da67403a866d36db9fa217ec9c · sha256:e1715fad9bedd4ce… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/bb7fc2498c3bb25fa6a91f22f4760005325cfbd5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:89f321ac04e8d8cf5c5c66efe93008fff92b91da67403a866d36db9fa217ec9c · sha256:e1715fad9bedd4ce… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/d3a3caf44c8ec26f5d63dc17c1c7242effa60ebc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:89f321ac04e8d8cf5c5c66efe93008fff92b91da67403a866d36db9fa217ec9c · sha256:e1715fad9bedd4ce… · /containers/cna/references/5

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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