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CVE-2022-49478
media: pvrusb2: fix array-index-out-of-bounds in pvr2_i2c_core_init
High7.8EPSS 0.29%
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: media: pvrusb2: fix array-index-out-of-bounds in pvr2_i2c_core_init Syzbot reported that -1 is used as array index. The problem was in missing validation check. hdw->unit_number is initialized with -1 and then if init table walk fails this value remains unchanged. Since code blindly uses this member for array indexing adding sanity check is the easiest fix for that. hdw->workpoll initialization moved upper to prevent warning in __flush_work.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 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)
- 0.29% · top 78% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
Affected products
- affected d855497edbfbf9e19a17f4a1154bca69cb4bd9ba – < 4351bfe36aba9fa7dc9d68d498d25d41a0f45e67
- affected d855497edbfbf9e19a17f4a1154bca69cb4bd9ba – < 2e004fe914b243db41fa96f9e583385f360ea58e
- affected d855497edbfbf9e19a17f4a1154bca69cb4bd9ba – < a3660e06675bccec4bf149c7229ea1d491ba10d7
- affected d855497edbfbf9e19a17f4a1154bca69cb4bd9ba – < 1310fc3538dcc375a2f46ef0a438512c2ca32827
- affected d855497edbfbf9e19a17f4a1154bca69cb4bd9ba – < a3304766d9384886e6d3092c776273526947a2e9
- affected d855497edbfbf9e19a17f4a1154bca69cb4bd9ba – < 3309c2c574e13b21b44729f5bdbf21f60189b79a
- affected d855497edbfbf9e19a17f4a1154bca69cb4bd9ba – < f99a8b1ec0eddc2931aeaa4f490277a15b39f511
- affected d855497edbfbf9e19a17f4a1154bca69cb4bd9ba – < 24e807541e4a9263ed928e6ae3498de3ad43bd1e
- affected d855497edbfbf9e19a17f4a1154bca69cb4bd9ba – < 471bec68457aaf981add77b4f590d65dd7da1059
- affected 2.6.18
- unaffected < 2.6.18
- unaffected 4.9.318 – ≤ 4.9.*
- unaffected 4.14.283 – ≤ 4.14.*
- unaffected 4.19.247 – ≤ 4.19.*
- unaffected 5.4.198 – ≤ 5.4.*
- unaffected 5.10.121 – ≤ 5.10.*
- unaffected 5.15.46 – ≤ 5.15.*
- unaffected 5.17.14 – ≤ 5.17.*
- unaffected 5.18.3 – ≤ 5.18.*
- unaffected 5.19 – ≤ *
References (9)
- https://git.kernel.org/stable/c/4351bfe36aba9fa7dc9d68d498d25d41a0f45e67 (opens in a new tab)
- https://git.kernel.org/stable/c/2e004fe914b243db41fa96f9e583385f360ea58e (opens in a new tab)
- https://git.kernel.org/stable/c/a3660e06675bccec4bf149c7229ea1d491ba10d7 (opens in a new tab)
- https://git.kernel.org/stable/c/1310fc3538dcc375a2f46ef0a438512c2ca32827 (opens in a new tab)
- https://git.kernel.org/stable/c/a3304766d9384886e6d3092c776273526947a2e9 (opens in a new tab)
- https://git.kernel.org/stable/c/3309c2c574e13b21b44729f5bdbf21f60189b79a (opens in a new tab)
- https://git.kernel.org/stable/c/f99a8b1ec0eddc2931aeaa4f490277a15b39f511 (opens in a new tab)
- https://git.kernel.org/stable/c/24e807541e4a9263ed928e6ae3498de3ad43bd1e (opens in a new tab)
- https://git.kernel.org/stable/c/471bec68457aaf981add77b4f590d65dd7da1059 (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://trackcve.app/cve/CVE-2022-49478)Record last updated .