https://cve.radiocsirt.org Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Sat, 10 Oct 2026 04:30:11 +0000 https://cve.radiocsirt.org/vuln/cve-2025-38193 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>net_sched: sch_sfq: reject invalid perturb period</p> <p>Gerrard Tai reported that SFQ perturb_period has no range check yet, and this can be used to trigger a race condition fixed in a separate patch.</p> <p>We want to make sure ctl-&gt;perturb_period * HZ will not overflow and is positive.</p> <p>tc qd add dev lo root sfq perturb -10 # negative value : error Error: sch_sfq: invalid perturb period.</p> <p>tc qd add dev lo root sfq perturb 1000000000 # too big : error Error: sch_sfq: invalid perturb period.</p> <p>tc qd add dev lo root sfq perturb 2000000 # acceptable value tc -s -d qd sh dev lo qdisc sfq 8005: root refcnt 2 limit 127p quantum 64Kb depth 127 flows 128 divisor 1024 perturb 2000000sec Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>net_sched: sch_sfq: reject invalid perturb period</p> <p>Gerrard Tai reported that SFQ perturb_period has no range check yet, and this can be used to trigger a race condition fixed in a separate patch.</p> <p>We want to make sure ctl-&gt;perturb_period * HZ will not overflow and is positive.</p> <p>tc qd add dev lo root sfq perturb -10 # negative value : error Error: sch_sfq: invalid perturb period.</p> <p>tc qd add dev lo root sfq perturb 1000000000 # too big : error Error: sch_sfq: invalid perturb period.</p> <p>tc qd add dev lo root sfq perturb 2000000 # acceptable value tc -s -d qd sh dev lo qdisc sfq 8005: root refcnt 2 limit 127p quantum 64Kb depth 127 flows 128 divisor 1024 perturb 2000000sec Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0</p> https://cve.radiocsirt.org/vuln/cve-2025-38193