UnratedFix available
iommu/omap: Fix buffer overflow in debugfs
Type: advisorySources: OSV
In the Linux kernel, the following vulnerability has been resolved: iommu/omap: Fix buffer overflow in debugfs There are two issues here: 1) The "len" variable needs to be checked before the very first write. Otherwise if omap2_iommu_dump_ctx() with "bytes" less than 32 it is a buffer overflow. 2) The snprintf() function returns the number of bytes that *would* have been copied if there were enough space. But we want to know the number of bytes which were *actually* copied so use scnprintf() instead.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 4.14.296, 4.19.262, 4.9.331, 5.10.150, 5.15.75, 5.19.17, 5.4.220, 6.0.3
- CVEs
- CVE-2022-50301
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 8 Nov 2026, 00:38 UTC · Revision 1
Source evidence
iommu/omap: Fix buffer overflow in debugfs
core-osv · Original sourcePublished 15 Sept 2025, 14:45 UTC
In the Linux kernel, the following vulnerability has been resolved: iommu/omap: Fix buffer overflow in debugfs There are two issues here: 1) The "len" variable needs to be checked before the very first write. Otherwise if omap2_iommu_dump_ctx() with "bytes" less than 32 it is a buffer overflow. 2) The snprintf() function returns the number of bytes that *would* have been copied if there were enough space. But we want to know the number of bytes which were *actually* copied so use scnprintf() instead.
osv:CVE-2022-50301
Kernel
Fixed versions: 4.9.331, 4.14.296, 4.19.262, 5.4.220, 5.10.150, 5.15.75, 5.19.17, 6.0.3
Complete source record
{
"id": "2ad1eaf04692b2596919d1c30793b275d955049bdc9bad930f0718d1f685e838",
"url": "https://osv.dev/vulnerability/CVE-2022-50301",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "iommu/omap: Fix buffer overflow in debugfs",
"summary": "In the Linux kernel, the following vulnerability has been resolved: iommu/omap: Fix buffer overflow in debugfs There are two issues here: 1) The \"len\" variable needs to be checked before the very first write. Otherwise if omap2_iommu_dump_ctx() with \"bytes\" less than 32 it is a buffer overflow. 2) The snprintf() function returns the number of bytes that *would* have been copied if there were enough space. But we want to know the number of bytes which were *actually* copied so use scnprintf() instead.",
"evidence": "osv:CVE-2022-50301",
"products": [
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{
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{
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"evidence": "/affected/1/ranges"
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{
"value": "5.4.220",
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{
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{
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"severity": "unknown",
"structured": {
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"aliases": [
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{
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{
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{
"type": "ECOSYSTEM",
"events": [
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{
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"events": [
{
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{
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{
"type": "ECOSYSTEM",
"events": [
{
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{
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{
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"package": {
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],
"modified": "2026-10-28T02:30:52.621562073Z",
"provider": "osv",
"references": [
"https://git.kernel.org/stable/c/0c7043a5b5c3b35f5dc8875757f71e7f491d64d4",
"https://git.kernel.org/stable/c/184233a5202786b20220acd2d04ddf909ef18f29",
"https://git.kernel.org/stable/c/2fee0dbfaeaaa4bda04279ce772c4572b1429d04",
"https://git.kernel.org/stable/c/4010a1afaae1c0fb9c2cac5de703bed29b1f1782",
"https://git.kernel.org/stable/c/648472df221f2bbffb433b964bcb87baccc586d8",
"https://git.kernel.org/stable/c/706e359cf046c142db290244c3f4938b20fbe805",
"https://git.kernel.org/stable/c/9814cc350e0765ce69244bf55ae4c8b29facd27e",
"https://git.kernel.org/stable/c/bd0438f534b2e31b12f0b39b355c5dc2bbdaf854",
"https://git.kernel.org/stable/c/ec53b99b6b9da8b501f001595a6260c03b42d5b7",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50301.json",
"https://nvd.nist.gov/vuln/detail/CVE-2022-50301",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
"provider_metadata": {
"cna_assigner": "Linux",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50301.json"
}
},
"related_cves": [
{
"value": "CVE-2022-50301",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 521034,
"published_at": "2025-09-15T14:45:57.019+00:00"
}