Threats tagged 'ghsa-jc2x-56vj-85xr'

A vulnerability in the Linux kernel's net/sched ETS (Earliest TxTime Scheduler) component was resolved. The issue involves the ets_qdisc_change() function falling back to psched_mtu() without a proper floor for bands lacking an explicit quantum, which can cause a deficit-refill loop to spin under the qdisc lock. This occurs when a crafted size table causes qdisc_pkt_len to reach approximately 2 GiB, combined with a zero psched_mtu on a headerless device. The fix clamps explicitly configured quanta to a range between 256 and 1<<20 to prevent this condition.