CVE-2026-72155mtd: spi-nor: swp: Improve locking user experience
- —Not scoredno CVSS score yet
- 0.22%Exploitation in 30 daysEPSS · top 88% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
- 6 days later
· 6 days later
Published
- 3 months later
· 3 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.22% · top 88% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 3dd8012a8eeb3702fa17450ec1a16a3f38af138d – < 23c285be8f6fcde9088fe12bb69c701d46696be1
- affected 3dd8012a8eeb3702fa17450ec1a16a3f38af138d – < a6fd2145c73b80bb6a5eed7355a4f63597d712d9
- affected 3dd8012a8eeb3702fa17450ec1a16a3f38af138d – < 9a0d8dec3d11ca95d67537ea8fa6ee2730a5038a
- affected 3dd8012a8eeb3702fa17450ec1a16a3f38af138d – < dc341272cf8e15a2c511db3c4df5dab8adf70ad0
- affected 3dd8012a8eeb3702fa17450ec1a16a3f38af138d – < 6110ab5ffd84e8daa654652446a03ce2f77580a7
- affected 3dd8012a8eeb3702fa17450ec1a16a3f38af138d – < c0806df5cf806545160f3fdac3c888926ceac557
- affected 3dd8012a8eeb3702fa17450ec1a16a3f38af138d – < 12d4d69221159e6d0e72400ec81195d691169b53
- affected 3dd8012a8eeb3702fa17450ec1a16a3f38af138d – < e1d456b26bf23e30db305a6184e8abd9ab68bbf2
- affected 4.6
- unaffected < 4.6
- unaffected 5.10.266 – ≤ 5.10.*
- unaffected 5.15.217 – ≤ 5.15.*
- unaffected 6.1.178 – ≤ 6.1.*
- unaffected 6.6.145 – ≤ 6.6.*
- unaffected 6.12.97 – ≤ 6.12.*
- unaffected 6.18.40 – ≤ 6.18.*
- unaffected 7.1.5 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References8
- https://git.kernel.org/stable/c/23c285be8f6fcde9088fe12bb69c701d46696be1 (opens in a new tab)
- https://git.kernel.org/stable/c/a6fd2145c73b80bb6a5eed7355a4f63597d712d9 (opens in a new tab)
- https://git.kernel.org/stable/c/9a0d8dec3d11ca95d67537ea8fa6ee2730a5038a (opens in a new tab)
- https://git.kernel.org/stable/c/dc341272cf8e15a2c511db3c4df5dab8adf70ad0 (opens in a new tab)
- https://git.kernel.org/stable/c/6110ab5ffd84e8daa654652446a03ce2f77580a7 (opens in a new tab)
- https://git.kernel.org/stable/c/c0806df5cf806545160f3fdac3c888926ceac557 (opens in a new tab)
- https://git.kernel.org/stable/c/12d4d69221159e6d0e72400ec81195d691169b53 (opens in a new tab)
- https://git.kernel.org/stable/c/e1d456b26bf23e30db305a6184e8abd9ab68bbf2 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-58913 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://cveledger.app/cve/CVE-2026-72155)Record last updated .