CVE-2026-90056

Summary

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

net: fec: only stop PTP if it was initialized

fec_ptp_init() is only called when fep->bufdesc_ex is available. However, fec_probe() unconditionally calls fec_ptp_stop() on the failed_init path, and fec_drv_remove() unconditionally calls fec_ptp_stop() during device removal.

Check fep->bufdesc_ex before calling fec_ptp_stop() in both paths to avoid stopping PTP when it was not initialized.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux32cba57ba74be58589aeb4cb6496183e46a5e3e5 < 0dc8b3a395c3a749ab62c078f2fd54a402ae7e2baffected
LinuxLinux32cba57ba74be58589aeb4cb6496183e46a5e3e5 < 1973f108c481fab9bdc7daa6c77442af4a7388abaffected
LinuxLinux32cba57ba74be58589aeb4cb6496183e46a5e3e5 < 0602a4c238d2b6ed6e2bf5fa8ef7fa0203883dacaffected
LinuxLinux32cba57ba74be58589aeb4cb6496183e46a5e3e5 < 7566789664813c1778f0d4b7e0539fd863ea450caffected
LinuxLinux32cba57ba74be58589aeb4cb6496183e46a5e3e5 < 383f699a86fd04458dc47d10578c17e94f63d92faffected
LinuxLinux32cba57ba74be58589aeb4cb6496183e46a5e3e5 < 1f9639caeece703012bdb23975ebedf70f426269affected
LinuxLinux32cba57ba74be58589aeb4cb6496183e46a5e3e5 < 5975009651c4e5ec1492612962d0dd3dc86f6bdaaffected
LinuxLinux32cba57ba74be58589aeb4cb6496183e46a5e3e5 < dd890ae29299636fb037276fc1b5238698d08b03affected
LinuxLinux9561b28349a22c808c3ce25eaed4d132104bafb7affected
LinuxLinux3.18.99 < 3.19affected
LinuxLinux4.2affected
LinuxLinux0 < 4.2unaffected
LinuxLinux5.10.270 <= 5.10.*unaffected
LinuxLinux5.15.221 <= 5.15.*unaffected
LinuxLinux6.1.188 <= 6.1.*unaffected
LinuxLinux6.6.157 <= 6.6.*unaffected
LinuxLinux6.12.110 <= 6.12.*unaffected
LinuxLinux6.18.52 <= 6.18.*unaffected
LinuxLinux7.2.6 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References