CVE-2026-72155
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)
mtd: spi-nor: swp: Improve locking user experience
In the Linux kernel, the following vulnerability has been resolved: mtd: spi-nor: swp: Improve locking user experience In the case of the first block being locked (or the few first blocks), if the user want to fully unlock the device it has two possibilities: - either it asks to unlock the entire device, and this works; - or it asks to unlock just the block(s) that are currently locked, which fails. It fails because the conditions "can_be_top" and "can_be_bottom" are true. Indeed, in this case, we unlock everything, so the TB bit does not matter. However in the current implementation, use_top would be true (as this is the favourite option) and lock_len, which in practice should be reduced down to 0, is set to "nor->params->size - (ofs + len)" which is a positive number. This is wrong. An easy way is to simply add an extra condition. In the unlock() path, if we can achieve the same result from both sides, it means we unlock everything and lock_len must simply be 0. A comment is added to clarify that logic.
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) |
|---|---|---|---|---|---|
| 3dd8012a8eeb3702fa17450ec1a16a3f38af138d | affected | git | 23c285be8f6fcde9088fe12bb69c701d46696be1 | Unavailable | None listed |
| 3dd8012a8eeb3702fa17450ec1a16a3f38af138d | affected | git | a6fd2145c73b80bb6a5eed7355a4f63597d712d9 | Unavailable | None listed |
| 3dd8012a8eeb3702fa17450ec1a16a3f38af138d | affected | git | 9a0d8dec3d11ca95d67537ea8fa6ee2730a5038a | Unavailable | None listed |
| 3dd8012a8eeb3702fa17450ec1a16a3f38af138d | affected | git | dc341272cf8e15a2c511db3c4df5dab8adf70ad0 | Unavailable | None listed |
| 3dd8012a8eeb3702fa17450ec1a16a3f38af138d | affected | git | 6110ab5ffd84e8daa654652446a03ce2f77580a7 | Unavailable | None listed |
| 3dd8012a8eeb3702fa17450ec1a16a3f38af138d | affected | git | c0806df5cf806545160f3fdac3c888926ceac557 | Unavailable | None listed |
| 3dd8012a8eeb3702fa17450ec1a16a3f38af138d | affected | git | 12d4d69221159e6d0e72400ec81195d691169b53 | Unavailable | None listed |
| 3dd8012a8eeb3702fa17450ec1a16a3f38af138d | affected | git | e1d456b26bf23e30db305a6184e8abd9ab68bbf2 | 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) |
|---|---|---|---|---|---|
| 4.6 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.6 | Unavailable | None listed |
| 5.10.266 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.217 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.178 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.145 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.97 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.40 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.5 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |