Answer in brief
CVE-2023-53049 records a Medium severity (CVSS 5.5) vulnerability in usb: ucsi: Fix NULL pointer deref in ucsi_connector_change(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.3:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.3:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.3:rc3:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=bdc62f2bae8fb0e8e99574de5232f0a3c54a27df <a6adfe9bbd6ac11e398b54ccd99a0f8eea09f3c0 || >=bdc62f2bae8fb0e8e99574de5232f0a3c54a27df <7dd27aed9c456670b3882877ef17a48195f21693 || >=bdc62f2bae8fb0e8e99574de5232f0a3c54a27df <1c5abcb13491da8c049f20462189c12c753ba978 || >=bdc62f2bae8fb0e8e99574de5232f0a3c54a27df <7ef0423e43f877a328454059d46763043ce3da44 || >=bdc62f2bae8fb0e8e99574de5232f0a3c54a27df <f87fb985452ab2083967103ac00bfd68fb182764 | a6adfe9bbd6ac11e398b54ccd99a0f8eea09f3c0, 7dd27aed9c456670b3882877ef17a48195f21693, 1c5abcb13491da8c049f20462189c12c753ba978, 7ef0423e43f877a328454059d46763043ce3da44, f87fb985452ab2083967103ac00bfd68fb182764 |
| Linux/Linuxgeneric | 5.5 | Not reported |
Published upstream
May 2, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 5, 2026
In the Linux kernel, the following vulnerability has been resolved: usb: ucsi: Fix NULL pointer deref in ucsi_connector_change() When ucsi_init() fails, ucsi->connector is NULL, yet in case of ucsi_acpi we may still get events which cause the ucs_acpi code to call ucsi_connector_change(), which then derefs the NULL ucsi->connector pointer. Fix this by not setting ucsi->ntfy inside ucsi_init() until ucsi_init() has succeeded, so that ucsi_connector_change() ignores the events because UCSI_ENABLE_NTFY_CONNECTOR_CHANGE is not set in the ntfy mask.
Quoted source text, attributed separately from HOL analysis.