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CVE-2022-48747
block: Fix wrong offset in bio_truncate()
High7.5EPSS 0.92%
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: block: Fix wrong offset in bio_truncate() bio_truncate() clears the buffer outside of last block of bdev, however current bio_truncate() is using the wrong offset of page. So it can return the uninitialized data. This happened when both of truncated/corrupted FS and userspace (via bdev) are trying to read the last of bdev.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVDNVD · Analyzed | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.92% · top 40% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
- affected 943cd69efac437d82a7aea0659fccbcc071730de – < 6cbf4c731d7812518cd857c2cfc3da9fd120f6ae
- affected 85a8ce62c2eabe28b9d76ca4eecf37922402df93 – < b63e120189fd92aff00096d11e2fc5253f60248b
- affected 85a8ce62c2eabe28b9d76ca4eecf37922402df93 – < 4633a79ff8bc82770486a063a08b55e5162521d8
- affected 85a8ce62c2eabe28b9d76ca4eecf37922402df93 – < 941d5180c430ce5b0f7a3622ef9b76077bfa3d82
- affected 85a8ce62c2eabe28b9d76ca4eecf37922402df93 – < 3ee859e384d453d6ac68bfd5971f630d9fa46ad3
- affected 5.4.9 – < 5.4.176
- affected 5.5
- unaffected < 5.5
- unaffected 5.4.176 – ≤ 5.4.*
- unaffected 5.10.96 – ≤ 5.10.*
- unaffected 5.15.19 – ≤ 5.15.*
- unaffected 5.16.5 – ≤ 5.16.*
- unaffected 5.17 – ≤ *
References (5)
- https://git.kernel.org/stable/c/6cbf4c731d7812518cd857c2cfc3da9fd120f6ae (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/b63e120189fd92aff00096d11e2fc5253f60248b (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/4633a79ff8bc82770486a063a08b55e5162521d8 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/941d5180c430ce5b0f7a3622ef9b76077bfa3d82 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/3ee859e384d453d6ac68bfd5971f630d9fa46ad3 (opens in a new tab)x_transferred
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)
- 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://trackcve.app/cve/CVE-2022-48747)Record last updated .