medium 5.5

CVE-2023-52877 json

usb: typec: tcpm: Fix NULL pointer dereference in tcpm_pd_svdm()

published 2024-05-21 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-59590

cvss: 5.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 12%
public exploits: 0; none known

In the Linux kernel, the following vulnerability has been resolved:

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.

Patch / fix

fixed in 1 distros 6 links 5

Linux Linux 5.15.138, 6.1.62, 6.5.11, 6.6.1, 6.7

debian ubuntu red hat suse almalinux rocky linux

linux Debian 12 6.1.64-1
linux Debian 14, Debian 13 6.6.8-1

debian advisories DEBIAN-CVE-2023-52877

linux Ubuntu 22.04 LTS 5.15.0-100.110
linux-aws Ubuntu 22.04 LTS 5.15.0-1056.61
linux-gcp Ubuntu 22.04 LTS 5.15.0-1053.61
linux-gke Ubuntu 22.04 LTS 5.15.0-1052.57
linux-ibm Ubuntu 22.04 LTS 5.15.0-1048.51
linux-kvm Ubuntu 22.04 LTS 5.15.0-1052.57
linux-azure Ubuntu 22.04 LTS 5.15.0-1058.66
linux-gkeop Ubuntu 22.04 LTS 5.15.0-1038.44

ubuntu advisories UBUNTU-CVE-2023-52877

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

kernel RHEL 8 4.18.0-553.8.1.el8_10
perf RHEL 8 4.18.0-553.8.1.el8_10
bpftool RHEL 8 4.18.0-553.8.1.el8_10
kernel-core RHEL 8 4.18.0-553.8.1.el8_10
kernel-tools RHEL 8 4.18.0-553.8.1.el8_10
python3-perf RHEL 8 4.18.0-553.8.1.el8_10
kernel-modules RHEL 8 4.18.0-553.8.1.el8_10
kernel-zfcpdump RHEL 8 4.18.0-553.8.1.el8_10

red hat advisories RHSA-2025:13135 RHSA-2024:4211 RHSA-2024:4352

kernel-rt Linux Micro 6.0 6.4.0-9.1
kernel-source-rt Linux Micro 6.0 6.4.0-9.1
kernel-source Linux Micro 6.0 6.4.0-18.1
kernel-default Linux Micro 6.0 6.4.0-18.1
kernel-kvmsmall Linux Micro 6.0 6.4.0-18.1
kernel-default-base Linux Micro 6.0 6.4.0-17.1.1.51
kernel-rt Real Time Module 15 SP6, openSUSE Leap 15.6 6.4.0-150600.10.5.1
kernel-syms-rt Real Time Module 15 SP6, openSUSE Leap 15.6 6.4.0-150600.10.5.1

suse advisories SUSE-SU-2025:20028-1 SUSE-SU-2025:20008-1 SUSE-SU-2024:2973-1 SUSE-SU-2024:2896-1 SUSE-SU-2024:2571-1 SUSE-SU-2024:2190-1

kernel-rt AlmaLinux 8 4.18.0-553.8.1.rt7.349.el8_10
kernel-rt-kvm AlmaLinux 8 4.18.0-553.8.1.rt7.349.el8_10
kernel-rt-core AlmaLinux 8 4.18.0-553.8.1.rt7.349.el8_10
kernel-rt-modules AlmaLinux 8 4.18.0-553.8.1.rt7.349.el8_10
kernel-rt-debug-kvm AlmaLinux 8 4.18.0-553.8.1.rt7.349.el8_10
kernel-rt-debug-core AlmaLinux 8 4.18.0-553.8.1.rt7.349.el8_10
kernel-rt-debug-modules AlmaLinux 8 4.18.0-553.8.1.rt7.349.el8_10
kernel-rt-modules-extra AlmaLinux 8 4.18.0-553.8.1.rt7.349.el8_10

almalinux advisories ALSA-2024:4352 ALSA-2024:4211

kernel-rt Rocky Linux 8 4.18.0-553.8.1.rt7.349.el8_10
kernel Rocky Linux 8 4.18.0-553.8.1.el8_10

rocky linux advisories RLSA-2024:4352 RLSA-2024:4211

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-52877 updated 2026-11-07 cvss 4.4

kernel: usb: typec: tcpm: Fix NULL pointer dereference in tcpm_pd_svdm()

Red Hat Enterprise Linux 9 rv, perf, rtla, kernel, bpftool, libperf, +82 more
affected: no fix available
Red Hat CodeReady Linux Builder EUS (v.9.4) libperf 5.14.0-427.81.1.el9_4, kernel-debuginfo-common-s390x 5.14.0-427.81.1.el9_4, kernel-debuginfo-common-x86_64 5.14.0-427.81.1.el9_4, kernel-debuginfo-common-aarch64 5.14.0-427.81.1.el9_4, kernel-debuginfo-common-ppc64le 5.14.0-427.81.1.el9_4 Red Hat Enterprise Linux AppStream EUS (v.9.4) rv 5.14.0-427.81.1.el9_4, perf 5.14.0-427.81.1.el9_4, rtla 5.14.0-427.81.1.el9_4, kernel-devel-matched 5.14.0-427.81.1.el9_4, kernel-64k-devel-matched 5.14.0-427.81.1.el9_4, kernel-debug-devel-matched 5.14.0-427.81.1.el9_4, +6 more
fixed: vendor fix RHSA-2025:13135
Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.8.1.el8_10, kernel 4.18.0-553.8.1.el8_10, bpftool 4.18.0-553.8.1.el8_10, kernel-core 4.18.0-553.8.1.el8_10, kernel-tools 4.18.0-553.8.1.el8_10, python3-perf 4.18.0-553.8.1.el8_10, +15 more
fixed: vendor fix RHSA-2024:4211
Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool 7.3.0-427.81.1.el9_4, kernel 5.14.0-427.81.1.el9_4, kernel-64k 5.14.0-427.81.1.el9_4, kernel-core 5.14.0-427.81.1.el9_4, kernel-tools 5.14.0-427.81.1.el9_4, python3-perf 5.14.0-427.81.1.el9_4, +28 more
fixed: vendor fix RHSA-2025:13135
Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.8.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.8.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.8.1.el8_10
fixed: vendor fix RHSA-2024:4211
Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.8.1.rt7.349.el8_10, kernel-rt-kvm 4.18.0-553.8.1.rt7.349.el8_10, kernel-rt-core 4.18.0-553.8.1.rt7.349.el8_10, kernel-rt-modules 4.18.0-553.8.1.rt7.349.el8_10, kernel-rt-debug-kvm 4.18.0-553.8.1.rt7.349.el8_10, kernel-rt-debug-core 4.18.0-553.8.1.rt7.349.el8_10, +4 more
fixed: vendor fix RHSA-2024:4352
Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt 5.14.0-427.81.1.el9_4, kernel-rt-core 5.14.0-427.81.1.el9_4, kernel-rt-modules 5.14.0-427.81.1.el9_4, kernel-rt-debug-core 5.14.0-427.81.1.el9_4, kernel-rt-modules-core 5.14.0-427.81.1.el9_4, kernel-rt-debug-modules 5.14.0-427.81.1.el9_4, +4 more Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt 5.14.0-427.81.1.el9_4, kernel-rt-kvm 5.14.0-427.81.1.el9_4, kernel-rt-core 5.14.0-427.81.1.el9_4, kernel-rt-modules 5.14.0-427.81.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.81.1.el9_4, kernel-rt-debug-core 5.14.0-427.81.1.el9_4, +6 more
fixed: vendor fix RHSA-2025:13135
Red Hat Enterprise Linux RT (v. 8) kernel-rt 4.18.0-553.8.1.rt7.349.el8_10, kernel-rt-core 4.18.0-553.8.1.rt7.349.el8_10, kernel-rt-modules 4.18.0-553.8.1.rt7.349.el8_10, kernel-rt-debug-core 4.18.0-553.8.1.rt7.349.el8_10, kernel-rt-debug-modules 4.18.0-553.8.1.rt7.349.el8_10, kernel-rt-modules-extra 4.18.0-553.8.1.rt7.349.el8_10, +2 more
fixed: vendor fix RHSA-2024:4352

show 1 more

Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise Linux BaseOS (v. 8) kernel-headers 4.18.0-553.8.1.el8_10, kernel-cross-headers 4.18.0-553.8.1.el8_10
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-06-10)

Exploit prediction

0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	5.5	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

Linux Linux

Classification

Weakness

CWE-476 NULL Pointer Dereference

Technology feeds

Linux kernel rss critical rss

References

Sources

CVE List CVE-2023-52877
NVD CVE-2023-52877

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary