HighFix available
media: pvrusb2: fix array-index-out-of-bounds in pvr2_i2c_core_init
Type: advisorySources: OSV
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.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 4.14.283, 4.19.247, 4.9.318, 5.10.121, 5.15.46, 5.17.14, 5.18.3, 5.4.198
- CVEs
- CVE-2022-49478
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 7 Nov 2026, 02:13 UTC · Revision 1
Source evidence
media: pvrusb2: fix array-index-out-of-bounds in pvr2_i2c_core_init
core-osv · Original sourcePublished 26 Feb 2025, 02:13 UTC
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.
osv:CVE-2022-49478
Kernel
Fixed versions: 4.9.318, 4.14.283, 4.19.247, 5.4.198, 5.10.121, 5.15.46, 5.17.14, 5.18.3
Complete source record
{
"id": "7fc3deae8e3288701c8e951fc4964a67ccd104a1e98588a51b71ee3be770f5b2",
"url": "https://osv.dev/vulnerability/CVE-2022-49478",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "media: pvrusb2: fix array-index-out-of-bounds in pvr2_i2c_core_init",
"summary": "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.",
"evidence": "osv:CVE-2022-49478",
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"modified": "2026-10-28T02:30:48.994023682Z",
"provider": "osv",
"references": [
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"https://git.kernel.org/stable/c/a3660e06675bccec4bf149c7229ea1d491ba10d7",
"https://git.kernel.org/stable/c/f99a8b1ec0eddc2931aeaa4f490277a15b39f511",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49478.json",
"https://nvd.nist.gov/vuln/detail/CVE-2022-49478",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
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"provider_metadata": {
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"source_id": "core-osv",
"document_id": 517270,
"published_at": "2025-02-26T02:13:19.33+00:00"
}