CVE-2026-43484None▾ SunlitIn 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…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 6.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.1%
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). Convert claimed, can_retune, retune_now and retune_paused to bool to remove shared-word coupling.
Linux >= 6c0cedd1ef9527ef13e66875746570e76a3188a7 < 41dce4dae583a8ce06a7ebf4ce704c46a142957cLinux >= 6c0cedd1ef9527ef13e66875746570e76a3188a7 < bb7fc2498c3bb25fa6a91f22f4760005325cfbd5Linux >= 6c0cedd1ef9527ef13e66875746570e76a3188a7 < 270277c2ab631044867adb1bd2f2433d3892de6eLinux >= 6c0cedd1ef9527ef13e66875746570e76a3188a7 < 45038e03f15e992c48603fff8c6b1c9be5397ac9Linux >= 6c0cedd1ef9527ef13e66875746570e76a3188a7 < 0e06cc511c61cff1591e5435a207759adcc76b6dLinux >= 6c0cedd1ef9527ef13e66875746570e76a3188a7 < d3a3caf44c8ec26f5d63dc17c1c7242effa60ebcLinux >= 6c0cedd1ef9527ef13e66875746570e76a3188a7 < 901084c51a0a8fb42a3f37d2e9c62083c495f824Linux 4.15Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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