CVE-2022-50245
rapidio: fix possible UAF when kfifo_alloc() fails
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: rapidio: fix possible UAF when kfifo_alloc() fails If kfifo_alloc() fails in mport_cdev_open(), goto err_fifo and just free priv. But priv is still in the chdev->file_list, then list traversal may cause UAF. This fixes the following smatch warning: drivers/rapidio/devices/rio_mport_cdev.c:1930 mport_cdev_open() warn: '&priv->list' not removed from list
Timeline
ID reserved
By Linux
Published
- 8 months later
· 8 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
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.17% · top 93% of all CVEs (8 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
Affected products
- affected e8de370188d098bb49483c287b44925957c3c9b6 – < 2a6c75adf8192f07ddcdd4a1a13488c890a73919
- affected e8de370188d098bb49483c287b44925957c3c9b6 – < 2dfd60724d271a6ab99f93f40f38f2ced1ddbb87
- affected e8de370188d098bb49483c287b44925957c3c9b6 – < a253dde0403a153075ffb254f6f7b2635e49e97a
- affected e8de370188d098bb49483c287b44925957c3c9b6 – < 311b488405ac45af46756b1c8f1d27007b68b07e
- affected e8de370188d098bb49483c287b44925957c3c9b6 – < 5ee850645e42f541ce1ea8130c2b27cc495f965c
- affected e8de370188d098bb49483c287b44925957c3c9b6 – < 2f5cc7fd73fd6253cc71214f0dd499cc62feb469
- affected e8de370188d098bb49483c287b44925957c3c9b6 – < 2ba06e57f933f0eac242e8b389433da1cc00d4d5
- affected e8de370188d098bb49483c287b44925957c3c9b6 – < cb87af2c19c0993f6e21f75b963a5599c5a73e76
- affected e8de370188d098bb49483c287b44925957c3c9b6 – < 02d7d89f816951e0862147d751b1150d67aaebdd
- affected 4.6
- unaffected < 4.6
- unaffected 4.9.337 – ≤ 4.9.*
- unaffected 4.14.303 – ≤ 4.14.*
- unaffected 4.19.270 – ≤ 4.19.*
- unaffected 5.4.229 – ≤ 5.4.*
- unaffected 5.10.163 – ≤ 5.10.*
- unaffected 5.15.86 – ≤ 5.15.*
- unaffected 6.0.16 – ≤ 6.0.*
- unaffected 6.1.2 – ≤ 6.1.*
- unaffected 6.2 – ≤ *
References (9)
- https://git.kernel.org/stable/c/2a6c75adf8192f07ddcdd4a1a13488c890a73919 (opens in a new tab)
- https://git.kernel.org/stable/c/2dfd60724d271a6ab99f93f40f38f2ced1ddbb87 (opens in a new tab)
- https://git.kernel.org/stable/c/a253dde0403a153075ffb254f6f7b2635e49e97a (opens in a new tab)
- https://git.kernel.org/stable/c/311b488405ac45af46756b1c8f1d27007b68b07e (opens in a new tab)
- https://git.kernel.org/stable/c/5ee850645e42f541ce1ea8130c2b27cc495f965c (opens in a new tab)
- https://git.kernel.org/stable/c/2f5cc7fd73fd6253cc71214f0dd499cc62feb469 (opens in a new tab)
- https://git.kernel.org/stable/c/2ba06e57f933f0eac242e8b389433da1cc00d4d5 (opens in a new tab)
- https://git.kernel.org/stable/c/cb87af2c19c0993f6e21f75b963a5599c5a73e76 (opens in a new tab)
- https://git.kernel.org/stable/c/02d7d89f816951e0862147d751b1150d67aaebdd (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)
- 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-2022-50245)Record last updated .