CVE-2023-52877: usb: typec: tcpm: Fix NULL pointer dereference in tcpm_pd_svdm()
First published: Tue May 21 2024(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <5.15.138 | 5.15.138 |
| redhat/kernel | <6.1.62 | 6.1.62 |
| redhat/kernel | <6.5.11 | 6.5.11 |
| redhat/kernel | <6.6.1 | 6.6.1 |
| redhat/kernel | <6.7 | 6.7 |
| Linux Linux kernel | >=5.12<5.15.138 | |
| Linux Linux kernel | >=5.16<6.1.62 | |
| Linux Linux kernel | >=6.2<6.5.11 | |
| Linux Linux kernel | >=6.6<6.6.1 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://git.kernel.org/stable/c/4987daf86c152ff882d51572d154ad12e4ff3a4b
- https://git.kernel.org/stable/c/9ee038590d808a95d16adf92818dcd4752273c08
- https://git.kernel.org/stable/c/b37a168c0137156042a0ca9626651b5a789e822b
- https://git.kernel.org/stable/c/e5f53a68a596e04df3fde3099273435a30b6fdac
- https://git.kernel.org/stable/c/e7a802447c491903aa7cb45967aa2a934a4e63fc
- https://access.redhat.com/security/cve/CVE-2023-52877
- https://lore.kernel.org/linux-cve-announce/2024052122-CVE-2023-52877-0826@gregkh/T
- https://access.redhat.com/errata/RHSA-2024:4211
- https://access.redhat.com/errata/RHSA-2024:4352
- https://bugzilla.redhat.com/show_bug.cgi?id=2282712
- agent/title
- agent/weakness
- agent/type
- agent/first-publish-date
- agent/author
- agent/event
- agent/description
- agent/references
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2023-52877
- agent/software-canonical-lookup
- collector/mitre-cve
- source/MITRE
- collector/nvd-api
- source/NVD
- agent/severity
- agent/remedy
- agent/last-modified-date
- agent/softwarecombine
- agent/tags
- agent/source
- package-manager/redhat
- vendor/linux
- canonical/linux linux kernel
- version/linux linux kernel/5.12
- version/linux linux kernel/5.16
- version/linux linux kernel/6.2
- version/linux linux kernel/6.6