CVE-2023-53049

Description

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.

Reserved 2025-04-16 | Published 2025-05-02 | Updated 2025-05-04 | Assigner Linux

Product status

Default status
unaffected

bdc62f2bae8fb0e8e99574de5232f0a3c54a27df before a6adfe9bbd6ac11e398b54ccd99a0f8eea09f3c0
affected

bdc62f2bae8fb0e8e99574de5232f0a3c54a27df before 7dd27aed9c456670b3882877ef17a48195f21693
affected

bdc62f2bae8fb0e8e99574de5232f0a3c54a27df before 1c5abcb13491da8c049f20462189c12c753ba978
affected

bdc62f2bae8fb0e8e99574de5232f0a3c54a27df before 7ef0423e43f877a328454059d46763043ce3da44
affected

bdc62f2bae8fb0e8e99574de5232f0a3c54a27df before f87fb985452ab2083967103ac00bfd68fb182764
affected

Default status
affected

5.5
affected

Any version before 5.5
unaffected

5.10.177
unaffected

5.15.105
unaffected

6.1.22
unaffected

6.2.9
unaffected

6.3
unaffected

References

git.kernel.org/...c/a6adfe9bbd6ac11e398b54ccd99a0f8eea09f3c0

git.kernel.org/...c/7dd27aed9c456670b3882877ef17a48195f21693

git.kernel.org/...c/1c5abcb13491da8c049f20462189c12c753ba978

git.kernel.org/...c/7ef0423e43f877a328454059d46763043ce3da44

git.kernel.org/...c/f87fb985452ab2083967103ac00bfd68fb182764

cve.org (CVE-2023-53049)

nvd.nist.gov (CVE-2023-53049)

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