CVE-2026-43484
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
mmc: core: Avoid bitfield RMW for claim/retune flags
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 6c0cedd1ef9527ef13e66875746570e76a3188a7 | affected | git | 41dce4dae583a8ce06a7ebf4ce704c46a142957c | Unavailable | None listed |
| 6c0cedd1ef9527ef13e66875746570e76a3188a7 | affected | git | bb7fc2498c3bb25fa6a91f22f4760005325cfbd5 | Unavailable | None listed |
| 6c0cedd1ef9527ef13e66875746570e76a3188a7 | affected | git | 270277c2ab631044867adb1bd2f2433d3892de6e | Unavailable | None listed |
| 6c0cedd1ef9527ef13e66875746570e76a3188a7 | affected | git | 45038e03f15e992c48603fff8c6b1c9be5397ac9 | Unavailable | None listed |
| 6c0cedd1ef9527ef13e66875746570e76a3188a7 | affected | git | 0e06cc511c61cff1591e5435a207759adcc76b6d | Unavailable | None listed |
| 6c0cedd1ef9527ef13e66875746570e76a3188a7 | affected | git | d3a3caf44c8ec26f5d63dc17c1c7242effa60ebc | Unavailable | None listed |
| 6c0cedd1ef9527ef13e66875746570e76a3188a7 | affected | git | 901084c51a0a8fb42a3f37d2e9c62083c495f824 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.15 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.15 | Unavailable | None listed |
| 5.15.203 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.167 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.130 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.78 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.19 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19.9 | unaffected | semver | Unavailable | 6.19.* | None listed |
| 7.0 | unaffected | original_commit_for_fix | Unavailable | * | None listed |