- —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: i2c: imx: fix locked bus on SMBus block-read of 0 (atomic) SMBus 3.1 6.5.7 allows a Block Read byte count of 0, but the atomic (polling) path rejects it as -EPROTO. Worse, it returns without a NACK+STOP: the next receive cycle has already started, so the target keeps holding SDA and the bus stays stuck until a power cycle for this i2c controller. Reading I2DR to obtain the count likewise arms the next byte on the count > I2C_SMBUS_BLOCK_MAX path, which also returned -EPROTO directly and left the bus held. Handle both: NACK the in-flight dummy byte (TXAK) and extend msgs->len so the existing last-byte handling emits STOP; the dummy byte is discarded. A count of 0 is a valid empty block read; a count above I2C_SMBUS_BLOCK_MAX is still reported as -EPROTO, but only after the bus has been released. The interrupt-driven path has the same flaw from a later commit and is fixed separately, as it carries a different Fixes: tag and stable range.
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 (12 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 8e8782c71595a5ad29e234ce6b3d2fce787fb07a – < 0f29df3c3d607a9dbc14aed0e45504ced4d2e7ec
- affected 8e8782c71595a5ad29e234ce6b3d2fce787fb07a – < 38d4947431b2410850409fda016b2ac9f640a4dd
- affected 8e8782c71595a5ad29e234ce6b3d2fce787fb07a – < e3e8b02d4773cfc5ad561d2e5505efde36c6927a
- affected 8e8782c71595a5ad29e234ce6b3d2fce787fb07a – < 016ef0f6ca4bc9bf0330ac41bd2ea349759643e3
- affected 8e8782c71595a5ad29e234ce6b3d2fce787fb07a – < c882e8cc68fb993700dc21fd6e754001e6297934
- affected 8e8782c71595a5ad29e234ce6b3d2fce787fb07a – < 6d2c973926d0612360693bc559be2ffde836151b
- affected 8e8782c71595a5ad29e234ce6b3d2fce787fb07a – < 60ed00d46616a9232e42ea7a3e3c0273d7cf7543
- affected 8e8782c71595a5ad29e234ce6b3d2fce787fb07a – < cb2fc37857693b55909fb77dc2c87cfbc1cdc476
- affected 3.16
- unaffected < 3.16
- unaffected 5.10.266 – ≤ 5.10.*
- unaffected 5.15.217 – ≤ 5.15.*
- unaffected 6.1.184 – ≤ 6.1.*
- unaffected 6.6.148 – ≤ 6.6.*
- unaffected 6.12.101 – ≤ 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/0f29df3c3d607a9dbc14aed0e45504ced4d2e7ec (opens in a new tab)
- https://git.kernel.org/stable/c/38d4947431b2410850409fda016b2ac9f640a4dd (opens in a new tab)
- https://git.kernel.org/stable/c/e3e8b02d4773cfc5ad561d2e5505efde36c6927a (opens in a new tab)
- https://git.kernel.org/stable/c/016ef0f6ca4bc9bf0330ac41bd2ea349759643e3 (opens in a new tab)
- https://git.kernel.org/stable/c/c882e8cc68fb993700dc21fd6e754001e6297934 (opens in a new tab)
- https://git.kernel.org/stable/c/6d2c973926d0612360693bc559be2ffde836151b (opens in a new tab)
- https://git.kernel.org/stable/c/60ed00d46616a9232e42ea7a3e3c0273d7cf7543 (opens in a new tab)
- https://git.kernel.org/stable/c/cb2fc37857693b55909fb77dc2c87cfbc1cdc476 (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-2026-58900 (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)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-72142)Record last updated .