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Описание
Оригинално описание
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.
Засегнати продукти
- Linux Linux: 6c0cedd1ef9527ef13e66875746570e76a3188a7 преди 41dce4dae583a8ce06a7ebf4ce704c46a142957c; 6c0cedd1ef9527ef13e66875746570e76a3188a7 преди bb7fc2498c3bb25fa6a91f22f4760005325cfbd5; 6c0cedd1ef9527ef13e66875746570e76a3188a7 преди 270277c2ab631044867adb1bd2f2433d3892de6e; 6c0cedd1ef9527ef13e66875746570e76a3188a7 преди 45038e03f15e992c48603fff8c6b1c9be5397ac9; 6c0cedd1ef9527ef13e66875746570e76a3188a7 преди 0e06cc511c61cff1591e5435a207759adcc76b6d; 6c0cedd1ef9527ef13e66875746570e76a3188a7 преди d3a3caf44c8ec26f5d63dc17c1c7242effa60ebc; 6c0cedd1ef9527ef13e66875746570e76a3188a7 преди 901084c51a0a8fb42a3f37d2e9c62083c495f824
- Linux Linux: 4.15; преди 4.15; 5.15.203 до 5.15.*; 6.1.167 до 6.1.*; 6.6.130 до 6.6.*; 6.12.78 до 6.12.*; 6.18.19 до 6.18.*; 6.19.9 до 6.19.*; от 7.0 нататък
История
- 13 май 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-43484
- https://nvd.nist.gov/vuln/detail/CVE-2026-43484
- https://git.kernel.org/stable/c/41dce4dae583a8ce06a7ebf4ce704c46a142957c
- https://git.kernel.org/stable/c/bb7fc2498c3bb25fa6a91f22f4760005325cfbd5
- https://git.kernel.org/stable/c/270277c2ab631044867adb1bd2f2433d3892de6e
- https://git.kernel.org/stable/c/45038e03f15e992c48603fff8c6b1c9be5397ac9
- https://git.kernel.org/stable/c/0e06cc511c61cff1591e5435a207759adcc76b6d
- https://git.kernel.org/stable/c/d3a3caf44c8ec26f5d63dc17c1c7242effa60ebc
- https://git.kernel.org/stable/c/901084c51a0a8fb42a3f37d2e9c62083c495f824