CVE-2022-49273
rtc: pl031: fix rtc features null pointer dereference
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
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.
Timeline
ID reserved
By Linux
Published
- 15 months later
· 15 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.26% · top 82% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
- affected d9b0dd54a1943f47a381a474f8ea2c94466110c0 – < cd2722e411e8ab7e5ae41102f6925fa13dffdac5
- affected d9b0dd54a1943f47a381a474f8ea2c94466110c0 – < d274ce4a3dfd0b9a292667535578359b865765cb
- affected d9b0dd54a1943f47a381a474f8ea2c94466110c0 – < 1b915703964f7e636961df04c540261dc55c6c70
- affected d9b0dd54a1943f47a381a474f8ea2c94466110c0 – < ea6af39f3da50c86367a71eb3cc674ade3ed244c
- affected 5.12
- unaffected < 5.12
- unaffected 5.15.33 – ≤ 5.15.*
- unaffected 5.16.19 – ≤ 5.16.*
- unaffected 5.17.2 – ≤ 5.17.*
- unaffected 5.18 – ≤ *
References (4)
- https://git.kernel.org/stable/c/cd2722e411e8ab7e5ae41102f6925fa13dffdac5 (opens in a new tab)
- https://git.kernel.org/stable/c/d274ce4a3dfd0b9a292667535578359b865765cb (opens in a new tab)
- https://git.kernel.org/stable/c/1b915703964f7e636961df04c540261dc55c6c70 (opens in a new tab)
- https://git.kernel.org/stable/c/ea6af39f3da50c86367a71eb3cc674ade3ed244c (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-2022-49273)Record last updated .