CVE-2025-21773

Summary

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

can: etas_es58x: fix potential NULL pointer dereference on udev->serial

The driver assumed that es58x_dev->udev->serial could never be NULL. While this is true on commercially available devices, an attacker could spoof the device identity providing a NULL USB serial number. That would trigger a NULL pointer dereference.

Add a check on es58x_dev->udev->serial before accessing it.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux9f06631c3f1f0f298536443df85a6837ba4c5f5c < 1590667a60753ee5a54871f2840ceefd4a7831faaffected
LinuxLinux9f06631c3f1f0f298536443df85a6837ba4c5f5c < 722e8e1219c8b6ac2865011fe339315d6a8d0721affected
LinuxLinux9f06631c3f1f0f298536443df85a6837ba4c5f5c < 5059ea98d7bc133903d3e47ab36df6ed11d0c95faffected
LinuxLinux9f06631c3f1f0f298536443df85a6837ba4c5f5c < a1ad2109ce41c9e3912dadd07ad8a9c640064ffbaffected
LinuxLinux6.2affected
LinuxLinux0 < 6.2unaffected
LinuxLinux6.6.79 <= 6.6.*unaffected
LinuxLinux6.12.16 <= 6.12.*unaffected
LinuxLinux6.13.4 <= 6.13.*unaffected
LinuxLinux6.14 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References