linux — security advisory
In the Linux kernel, the following vulnerability has been resolved: rtc: pl031: fix rtc features null pointer dereference When there is no interrupt line, rtc alarm feature is disabled. The clearing of the alarm feature bit was being done prior to allocations of ldata->rtc device, resulting in a null pointer dereference. Clear RTC_FEATURE_ALARM after the rtc device is allocated.
- Products
- linux
- Affected versions
- Not specified
- Fixed versions
- 5.17.3-1
- CVEs
- CVE-2022-49273
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 30 Oct 2026, 15:26 UTC · Revision 1
Source evidence
In the Linux kernel, the following vulnerability has been resolved: rtc: pl031: fix rtc features null pointer dereference When there is no interrupt line, rtc alarm feature is disabled. The clearing of the alarm feature bit was being done prior to allocations of ldata->rtc device, resulting in a null pointer dereference. Clear RTC_FEATURE_ALARM after the rtc device is allocated.
osv:DEBIAN-CVE-2022-49273
linux
Fixed versions: 5.17.3-1
linux
Fixed versions: 5.17.3-1
linux
Fixed versions: 5.17.3-1
Complete source record
{
"id": "835765b8a2efc4079b34ec8853816d0cc866793ea818f3fcb8f74337722eb340",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2022-49273",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2022-49273",
"summary": "In the Linux kernel, the following vulnerability has been resolved: rtc: pl031: fix rtc features null pointer dereference When there is no interrupt line, rtc alarm feature is disabled. The clearing of the alarm feature bit was being done prior to allocations of ldata->rtc device, resulting in a null pointer dereference. Clear RTC_FEATURE_ALARM after the rtc device is allocated.",
"evidence": "osv:DEBIAN-CVE-2022-49273",
"products": [
{
"name": {
"value": "linux",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.17.3-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
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"evidence": "/affected/1/package/name"
},
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"fixed_versions": [
{
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"evidence": "/affected/1/ranges"
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},
{
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"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2022-49273",
"aliases": [
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],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
}
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"affected": [
{
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],
"package": {
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"purl": "pkg:deb/debian/linux?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49273.json"
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{
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"package": {
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"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49273.json"
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"ecosystem_specific": {
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{
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],
"package": {
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"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49273.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-15T08:02:58.464300891Z",
"provider": "osv",
"upstream": [
"CVE-2022-49273"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2022-49273"
]
},
"related_cves": [
{
"value": "CVE-2022-49273",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 324805,
"published_at": "2025-02-26T07:01:04.19+00:00"
}