cve-2023-52877
Vulnerability from cvelistv5
Published
2024-05-21 15:32
Modified
2024-12-19 08:27
Severity ?
Summary
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
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4987daf86c152ff882d51572d154ad12e4ff3a4b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9ee038590d808a95d16adf92818dcd4752273c08
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b37a168c0137156042a0ca9626651b5a789e822b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e5f53a68a596e04df3fde3099273435a30b6fdac
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e7a802447c491903aa7cb45967aa2a934a4e63fc
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/4987daf86c152ff882d51572d154ad12e4ff3a4b
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/9ee038590d808a95d16adf92818dcd4752273c08
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b37a168c0137156042a0ca9626651b5a789e822b
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/e5f53a68a596e04df3fde3099273435a30b6fdac
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/e7a802447c491903aa7cb45967aa2a934a4e63fc
Impacted products
Vendor Product Version
Linux Linux Version: 5.12
Show details on NVD website

To clipboard 

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}


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