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TI-2023-29761 Aliases CVE-2023-53472GHSA-3g53-3cmj-qjrh

pwm: lpc32xx: Remove handling of PWM channels

Priority LOW 24CWE-476Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-476.

Summary

In the Linux kernel, the following vulnerability has been resolved: pwm: lpc32xx: Remove handling of PWM channels Because LPC32xx PWM controllers have only a single output which is registered as the only PWM device/channel per controller, it is known in advance that pwm->hwpwm value is always 0. On basis of this fact simplify the code by removing operations with pwm->hwpwm, there is no controls which require channel number as input. Even though I wasn't aware at the time when I forward ported that patch, this fixes a null pointer dereference as lpc32xx->chip.pwms is NULL before devm_pwmchip_add() is called.

Why it matters now

EPSS 0.0016 5th percentileScored 2026-11-07
Fix Fixed Linux (Linux): 4.14.326, 4.19.295, 5.4.257 +7

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux4.14.248 to before 4.14.326; 4.19.208 to before 4.19.295; 5.4.149 to before 5.4.257; 5.10.69 to before 5.10.195; 4.9.284 to before 4.10; 5.14.8 to before 5.154.14.326, 4.19.295, 5.4.257, 5.10.195, 4.10, 5.15Patch availableCNA
LinuxLinux5.15 and later4.14.326, 4.19.295, 5.4.257, 5.10.195, 5.15.132, 6.1.54, 6.5.4, 6.6Patch availableCNA
  • Linux VendorLinux Affected 4.14.248 to before 4.14.326; 4.19.208 to before 4.19.295; 5.4.149 to before 5.4.257; 5.10.69 to before 5.10.195; 4.9.284 to before 4.10; 5.14.8 to before 5.15 Fixed in 4.14.326, 4.19.295, 5.4.257, 5.10.195, 4.10, 5.15 Patch available CNA
  • Linux VendorLinux Affected 5.15 and later Fixed in 4.14.326, 4.19.295, 5.4.257, 5.10.195, 5.15.132, 6.1.54, 6.5.4, 6.6 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*4.9.284 to before 4.10; 4.14.248 to before 4.14.326; 4.19.208 to before 4.19.295; 5.4.149 to before 5.4.257; 5.10.69 to before 5.10.195; 5.14.8 to before 5.15.132; 5.16 to before 6.1.54; 6.2 to before 6.5.4VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 4.9.284 to before 4.10; 4.14.248 to before 4.14.326; 4.19.208 to before 4.19.295; 5.4.149 to before 5.4.257; 5.10.69 to before 5.10.195; 5.14.8 to before 5.15.132; 5.16 to before 6.1.54; 6.2 to before 6.5.4 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 4.14.326, 4.19.295, 5.4.257, 5.10.195, 4.10, 5.15
  • Fix · CNA Linux (Linux) Fixed in 4.14.326, 4.19.295, 5.4.257, 5.10.195, 5.15.132, 6.1.54, 6.5.4, 6.6

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 5 products
  • Red Hat Enterprise Linux 10
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-53472
  2. 2026-10-03 Alias added: GHSA-3g53-3cmj-qjrh

References

Patch 8

  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
  • TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
  • TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
  • TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
  • TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
See all 15278 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences