CVE-2023-52877
- Source
- https://cve.org/CVERecord?id=CVE-2023-52877
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-52877.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2023-52877
- Downstream
- Related
- Published
- 2024-05-21T15:32:09.946Z
- Modified
- 2026-04-11T12:46:37.870788Z
- Summary
- usb: typec: tcpm: Fix NULL pointer dereference in tcpm_pd_svdm()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
usb: typec: tcpm: Fix NULL pointer dereference in tcpmpdsvdm()
It is possible that typecregisterpartner() 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 : tcpmpddatarequest+0x310/0x13fc [91225.274646][ T319] lr : tcpmpddatarequest+0x298/0x13fc [91225.308067][ T319] Call trace: [91225.308070][ T319] tcpmpddatarequest+0x310/0x13fc [91225.308073][ T319] tcpmpdrxhandler+0x100/0x9e8 [91225.355900][ T319] kthreadworkerfn+0x178/0x58c [91225.355902][ T319] kthread+0x150/0x200 [91225.355905][ T319] retfromfork+0x10/0x30
Add a check for port->partner to avoid dereferencing a NULL pointer.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52877.json", "cna_assigner": "Linux" }- References
-
- 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://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52877.json
- https://nvd.nist.gov/vuln/detail/CVE-2023-52877
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced5e1d4c49fbc86dab6e005d66f066bd53c9479cdeFixede5f53a68a596e04df3fde3099273435a30b6fdacFixede7a802447c491903aa7cb45967aa2a934a4e63fcFixed9ee038590d808a95d16adf92818dcd4752273c08Fixedb37a168c0137156042a0ca9626651b5a789e822bFixed4987daf86c152ff882d51572d154ad12e4ff3a4b