CVE-2022-50544
usb: host: xhci: Fix potential memory leak in xhci_alloc_stream_info()
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: usb: host: xhci: Fix potential memory leak in xhci_alloc_stream_info() xhci_alloc_stream_info() allocates stream context array for stream_info ->stream_ctx_array with xhci_alloc_stream_ctx(). When some error occurs, stream_info->stream_ctx_array is not released, which will lead to a memory leak. We can fix it by releasing the stream_info->stream_ctx_array with xhci_free_stream_ctx() on the error path to avoid the potential memory leak.
Timeline
ID reserved
By Linux
Published
- 13 months later
· 13 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 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.16% · top 94% of all CVEs (8 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: Medium 5.5.
Weakness
Affected products
- affected 8df75f42f8e67e2851cdcf6da91640fb881defd1 – < 7fc6bab3413e6a42bb1264ff7c9149808c93a4c7
- affected 8df75f42f8e67e2851cdcf6da91640fb881defd1 – < e702de2f5c893bf2cdb0152191f99a6ad1411823
- affected 8df75f42f8e67e2851cdcf6da91640fb881defd1 – < ddab9fe76296840aad686c66888a9c1dfdbff5ff
- affected 8df75f42f8e67e2851cdcf6da91640fb881defd1 – < 9fa81cbd2dd300aa8fe9bac70e068b9a11cbb144
- affected 8df75f42f8e67e2851cdcf6da91640fb881defd1 – < 91271a3e772e180bbb8afb114c72fd294a02f93d
- affected 8df75f42f8e67e2851cdcf6da91640fb881defd1 – < fcd594da0b5955119d9707e4e0a8d0fb1c969101
- affected 8df75f42f8e67e2851cdcf6da91640fb881defd1 – < a40ad475236022f3432880e3091c380e46e71a71
- affected 8df75f42f8e67e2851cdcf6da91640fb881defd1 – < 782c873f8e7686f5b3c47e8b099f7e08c3dd1fdc
- affected 8df75f42f8e67e2851cdcf6da91640fb881defd1 – < 7e271f42a5cc3768cd2622b929ba66859ae21f97
- affected 2.6.35
- unaffected < 2.6.35
- unaffected 4.9.331 – ≤ 4.9.*
- unaffected 4.14.296 – ≤ 4.14.*
- unaffected 4.19.262 – ≤ 4.19.*
- unaffected 5.4.220 – ≤ 5.4.*
- unaffected 5.10.150 – ≤ 5.10.*
- unaffected 5.15.75 – ≤ 5.15.*
- unaffected 5.19.17 – ≤ 5.19.*
- unaffected 6.0.3 – ≤ 6.0.*
- unaffected 6.1 – ≤ *
References (9)
- https://git.kernel.org/stable/c/7fc6bab3413e6a42bb1264ff7c9149808c93a4c7 (opens in a new tab)
- https://git.kernel.org/stable/c/e702de2f5c893bf2cdb0152191f99a6ad1411823 (opens in a new tab)
- https://git.kernel.org/stable/c/ddab9fe76296840aad686c66888a9c1dfdbff5ff (opens in a new tab)
- https://git.kernel.org/stable/c/9fa81cbd2dd300aa8fe9bac70e068b9a11cbb144 (opens in a new tab)
- https://git.kernel.org/stable/c/91271a3e772e180bbb8afb114c72fd294a02f93d (opens in a new tab)
- https://git.kernel.org/stable/c/fcd594da0b5955119d9707e4e0a8d0fb1c969101 (opens in a new tab)
- https://git.kernel.org/stable/c/a40ad475236022f3432880e3091c380e46e71a71 (opens in a new tab)
- https://git.kernel.org/stable/c/782c873f8e7686f5b3c47e8b099f7e08c3dd1fdc (opens in a new tab)
- https://git.kernel.org/stable/c/7e271f42a5cc3768cd2622b929ba66859ae21f97 (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-2022-50544)Record last updated .