CVE-2023-53049
published 2025-05-02CVE-2023-53049: In the Linux kernel, the following vulnerability has been resolved: usb: ucsi: Fix NULL pointer deref in ucsi_connector_change() When ucsi_init() fails…
PriorityP418medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.19%
8.7th percentile
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.
Affected
16 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.25-1 (bookworm) | linux 6.1.25-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= bdc62f2bae8fb0e8e99574de5232f0a3c54a27df < a6adfe9bbd6ac11e398b54ccd99a0f8eea09f3c0 | a6adfe9bbd6ac11e398b54ccd99a0f8eea09f3c0 |
| linux | linux | >= bdc62f2bae8fb0e8e99574de5232f0a3c54a27df < 7dd27aed9c456670b3882877ef17a48195f21693 | 7dd27aed9c456670b3882877ef17a48195f21693 |
| linux | linux | >= bdc62f2bae8fb0e8e99574de5232f0a3c54a27df < 1c5abcb13491da8c049f20462189c12c753ba978 | 1c5abcb13491da8c049f20462189c12c753ba978 |
| linux | linux | >= bdc62f2bae8fb0e8e99574de5232f0a3c54a27df < 7ef0423e43f877a328454059d46763043ce3da44 | 7ef0423e43f877a328454059d46763043ce3da44 |
| linux | linux | >= bdc62f2bae8fb0e8e99574de5232f0a3c54a27df < f87fb985452ab2083967103ac00bfd68fb182764 | f87fb985452ab2083967103ac00bfd68fb182764 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.178-1 | 5.10.178-1 |
| linux | linux_kernel | >= 0 < 6.1.25-1 | 6.1.25-1 |
| linux | linux_kernel | >= 0 < 6.1.25-1 | 6.1.25-1 |
| linux | linux_kernel | >= 0 < 6.1.25-1 | 6.1.25-1 |
| linux | linux_kernel | >= 5.11 < 5.15.105 | 5.15.105 |
| linux | linux_kernel | >= 5.16 < 6.1.22 | 6.1.22 |
| linux | linux_kernel | >= 5.5 < 5.10.177 | 5.10.177 |
| linux | linux_kernel | >= 6.2 < 6.2.9 | 6.2.9 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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GHSA
GHSA-fgxf-q65m-q88v: In the Linux kernel, the following vulnerability has been resolved:
usb: ucsi: Fix NULL pointer deref in ucsi_connector_change()
When ucsi_init() fa
ghsa_unreviewed·2025-05-02
CVE-2023-53049 [MEDIUM] CWE-476 GHSA-fgxf-q65m-q88v: In the Linux kernel, the following vulnerability has been resolved:
usb: ucsi: Fix NULL pointer deref in ucsi_connector_change()
When ucsi_init() fa
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.
OSV
CVE-2023-53049: In the Linux kernel, the following vulnerability has been resolved: usb: ucsi: Fix NULL pointer deref in ucsi_connector_change() When ucsi_init() fail
osv·2025-05-02·CVSS 5.5
CVE-2023-53049 [MEDIUM] CVE-2023-53049: In the Linux kernel, the following vulnerability has been resolved: usb: ucsi: Fix NULL pointer deref in ucsi_connector_change() When ucsi_init() fail
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.
Red Hat
kernel: usb: ucsi: Fix NULL pointer deref in ucsi_connector_change()
vendor_redhat·2025-05-02·CVSS 5.5
CVE-2023-53049 [MEDIUM] kernel: usb: ucsi: Fix NULL pointer deref in ucsi_connector_change()
kernel: usb: ucsi: Fix NULL pointer deref in ucsi_connector_change()
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.
Statement: A NULL pointer dereference vulnerability in the UCSI USB Type-C subsystem was fixed in ucsi_connector_change(). If ucsi_init() fails, a race condition may cause connec
Debian
CVE-2023-53049: linux - In the Linux kernel, the following vulnerability has been resolved: usb: ucsi: ...
vendor_debian·2023·CVSS 5.5
CVE-2023-53049 [MEDIUM] CVE-2023-53049: linux - In the Linux kernel, the following vulnerability has been resolved: usb: ucsi: ...
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.
Scope: local
bookworm: resolved (fixed in 6.1.25-1)
bullseye: resolved (fixed in 5.10.178-1)
forky: resolved (fixed in 6.1.25-1)
sid: resolved (fixed in 6.1.25-1)
trixie: resolved (fixed in 6.1.25-1)
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/1c5abcb13491da8c049f20462189c12c753ba978https://git.kernel.org/stable/c/7dd27aed9c456670b3882877ef17a48195f21693https://git.kernel.org/stable/c/7ef0423e43f877a328454059d46763043ce3da44https://git.kernel.org/stable/c/a6adfe9bbd6ac11e398b54ccd99a0f8eea09f3c0https://git.kernel.org/stable/c/f87fb985452ab2083967103ac00bfd68fb182764
2025-05-02
Published