Vulnerability details
CVE-2022-49478
Linux Linux
media: pvrusb2: fix array-index-out-of-bounds in pvr2_i2c_core_init
CVSS 3.1
7.8High
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.8High | 3.1 | CISA ADP / Vulnrichment (CISA-ADP) | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | 2.6.18 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | d855497edbfbf9e19a17f4a1154bca69cb4bd9ba ≤ v < 2e004fe914b243db41fa96f9e583385f360ea58e | CVEProject cvelistV5 (CNA) |
| Linux | Linux | d855497edbfbf9e19a17f4a1154bca69cb4bd9ba ≤ v < a3660e06675bccec4bf149c7229ea1d491ba10d7 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | d855497edbfbf9e19a17f4a1154bca69cb4bd9ba ≤ v < 1310fc3538dcc375a2f46ef0a438512c2ca32827 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | d855497edbfbf9e19a17f4a1154bca69cb4bd9ba ≤ v < a3304766d9384886e6d3092c776273526947a2e9 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | d855497edbfbf9e19a17f4a1154bca69cb4bd9ba ≤ v < 4351bfe36aba9fa7dc9d68d498d25d41a0f45e67 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | d855497edbfbf9e19a17f4a1154bca69cb4bd9ba ≤ v < f99a8b1ec0eddc2931aeaa4f490277a15b39f511 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | d855497edbfbf9e19a17f4a1154bca69cb4bd9ba ≤ v < 24e807541e4a9263ed928e6ae3498de3ad43bd1e | CVEProject cvelistV5 (CNA) |
| Linux | Linux | d855497edbfbf9e19a17f4a1154bca69cb4bd9ba ≤ v < 471bec68457aaf981add77b4f590d65dd7da1059 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | d855497edbfbf9e19a17f4a1154bca69cb4bd9ba ≤ v < 3309c2c574e13b21b44729f5bdbf21f60189b79a | CVEProject cvelistV5 (CNA) |
References and advisories
9- https://git.kernel.org/stable/c/4351bfe36aba9fa7dc9d68d498d25d41a0f45e67
- https://git.kernel.org/stable/c/2e004fe914b243db41fa96f9e583385f360ea58e
- https://git.kernel.org/stable/c/a3660e06675bccec4bf149c7229ea1d491ba10d7
- https://git.kernel.org/stable/c/1310fc3538dcc375a2f46ef0a438512c2ca32827
- https://git.kernel.org/stable/c/a3304766d9384886e6d3092c776273526947a2e9
- https://git.kernel.org/stable/c/3309c2c574e13b21b44729f5bdbf21f60189b79a
- https://git.kernel.org/stable/c/f99a8b1ec0eddc2931aeaa4f490277a15b39f511
- https://git.kernel.org/stable/c/24e807541e4a9263ed928e6ae3498de3ad43bd1e
- https://git.kernel.org/stable/c/471bec68457aaf981add77b4f590d65dd7da1059
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Details
- Published
- 2025-02-26
- Last updated
- 2026-05-11
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
0.29%
Probability of exploitation in 30 days
21.8%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-129Improper Validation of Array Index