In the Linux kernel, the following vulnerability has been resolved:
usb: typec: tcpm: Fix NULL pointer dereference in tcpm_pd_svdm()
It is possible that typec_register_partner() returns ERR_PTR on failure.
When port->partner is an error, a NULL pointer dereference may occur as
shown below.
[91222.095236][ T319] typec port0: failed to register partner (-17)
...
[91225.061491][ T319] Unable to handle kernel NULL pointer dereference
at virtual address 000000000000039f
[91225.274642][ T319] pc : tcpm_pd_data_request+0x310/0x13fc
[91225.274646][ T319] lr : tcpm_pd_data_request+0x298/0x13fc
[91225.308067][ T319] Call trace:
[91225.308070][ T319] tcpm_pd_data_request+0x310/0x13fc
[91225.308073][ T319] tcpm_pd_rx_handler+0x100/0x9e8
[91225.355900][ T319] kthread_worker_fn+0x178/0x58c
[91225.355902][ T319] kthread+0x150/0x200
[91225.355905][ T319] ret_from_fork+0x10/0x30
Add a check for port->partner to avoid dereferencing a NULL pointer.
References
Configurations
Configuration 1 (hide)
|
History
06 Jan 2025, 20:32
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| First Time |
Linux linux Kernel
Linux |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| CWE | CWE-476 | |
| References | () https://git.kernel.org/stable/c/4987daf86c152ff882d51572d154ad12e4ff3a4b - Patch | |
| References | () https://git.kernel.org/stable/c/9ee038590d808a95d16adf92818dcd4752273c08 - Patch | |
| References | () https://git.kernel.org/stable/c/b37a168c0137156042a0ca9626651b5a789e822b - Patch | |
| References | () https://git.kernel.org/stable/c/e5f53a68a596e04df3fde3099273435a30b6fdac - Patch | |
| References | () https://git.kernel.org/stable/c/e7a802447c491903aa7cb45967aa2a934a4e63fc - Patch |
Information
Published : 2024-05-21 16:15
Updated : 2025-01-06 20:32
NVD link : CVE-2023-52877
Mitre link : CVE-2023-52877
CVE.ORG link : CVE-2023-52877
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-476
NULL Pointer Dereference