CVE-2026-90076

In the Linux kernel, the following vulnerability has been resolved: net/sched: fq: add overflow bounds to quantum and initial quantum fqinit computes quantum = 2 pschedmtu and initialquantum = 10 pschedmtu with no overflow check. A device with a huge MTU e.g. dummy with maxmtu == 0 accepting MTU...

AZL-102920 CVE-2026-90072 affecting package kernel 6.6.152.1-1

In the Linux kernel, the following vulnerability has been resolved: net/sched: sfq: clamp quantum to avoid signed overflow soft lockup sfqinit sets q-quantum = pschedmtuqdiscdevsch unsigned. A device with a huge MTU e.g. dummy with maxmtu == 0 accepting MTU 2147483634 makes pschedmtu return...

DEBIAN-CVE-2026-90074

In the Linux kernel, the following vulnerability has been resolved: net/sched: fqpie: clamp default quantum to avoid signed overflow fqpieinit sets q-quantum = pschedmtuqdiscdevsch without clamping. A device with a huge MTU e.g. dummy with maxmtu == 0 accepting MTU 2147483634 makes pschedmtu retu...

CVE-2026-90058

In the Linux kernel, the following vulnerability has been resolved: net/sched: bound qdiscpktlen to prevent qdisc soft lockup qdiscgetstab accepts a user-supplied size table, and qdisccalculatepktlen amplifies qdiscpktlen through the overhead, the size-table data u16, and sizelog up to...

AZL-102933 CVE-2026-90058 affecting package kernel 6.6.152.1-1

In the Linux kernel, the following vulnerability has been resolved: net/sched: bound qdiscpktlen to prevent qdisc soft lockup qdiscgetstab accepts a user-supplied size table, and qdisccalculatepktlen amplifies qdiscpktlen through the overhead, the size-table data u16, and sizelog up to...

DEBIAN-CVE-2026-90058

In the Linux kernel, the following vulnerability has been resolved: net/sched: bound qdiscpktlen to prevent qdisc soft lockup qdiscgetstab accepts a user-supplied size table, and qdisccalculatepktlen amplifies qdiscpktlen through the overhead, the size-table data u16, and sizelog up to...

CVE-2026-90053

In the Linux kernel, the following vulnerability has been resolved: net/sched: schhtb: limit htbclassify inner-class filter hops htbclassify follows each filter-selected inner class by switching to cl-filterlist, but never bounds the number of hops. A filter on an inner class can point back to...

DEBIAN-CVE-2026-90053

In the Linux kernel, the following vulnerability has been resolved: net/sched: schhtb: limit htbclassify inner-class filter hops htbclassify follows each filter-selected inner class by switching to cl-filterlist, but never bounds the number of hops. A filter on an inner class can point back to...

AZL-102324 CVE-2026-90053 affecting package kernel 6.6.152.1-1

In the Linux kernel, the following vulnerability has been resolved: net/sched: schhtb: limit htbclassify inner-class filter hops htbclassify follows each filter-selected inner class by switching to cl-filterlist, but never bounds the number of hops. A filter on an inner class can point back to...

CVE-2026-90076 net/sched: fq: add overflow bounds to quantum and initial quantum

In the Linux kernel, the following vulnerability has been resolved: net/sched: fq: add overflow bounds to quantum and initial quantum fqinit computes quantum = 2 pschedmtu and initialquantum = 10 pschedmtu with no overflow check. A device with a huge MTU e.g. dummy with maxmtu == 0 accepting MTU...

EUVD-2026-81937

In the Linux kernel, the following vulnerability has been resolved: net/sched: fq: add overflow bounds to quantum and initial quantum fqinit computes quantum = 2 pschedmtu and initialquantum = 10 pschedmtu with no overflow check. A device with a huge MTU e.g. dummy with maxmtu == 0 accepting MTU...

CVE-2026-90076

CVE-2026-90076 affects the Linux kernel 's net/sched FQ (Fair Queue) qdisc. In fq_init(), the quantum and initial_quantum values are computed from psched_mtu() without overflow protection. A network device with an extremely large MTU (e.g., a dummy device accepting MTU 2147483634) causes the 32-b...

CVE-2026-90076 net/sched: fq: add overflow bounds to quantum and initial quantum

In the Linux kernel, the following vulnerability has been resolved: net/sched: fq: add overflow bounds to quantum and initial quantum fqinit computes quantum = 2 pschedmtu and initialquantum = 10 pschedmtu with no overflow check. A device with a huge MTU e.g. dummy with maxmtu == 0 accepting MTU...

EUVD-2026-81936

In the Linux kernel, the following vulnerability has been resolved: net/sched: fqcodel: clamp default quantum and mtu fqcodelinit sets q-quantum = pschedmtuqdiscdevsch without clamping. A device with a huge MTU e.g. dummy with maxmtu == 0 accepting MTU 2147483634 makes pschedmtu return 0x80000000...

CVE-2026-90075

In the Linux kernel , the fq_codel qdisc (net/sched) fails to clamp the default quantum and codel mtu derived from psched_mtu(). A device whose MTU wraps the value into the sign bit (e.g., a dummy device with max_mtu == 0 accepting MTU 2147483634) causes two distinct failures: (1) the signed flow...

EUVD-2026-81935

In the Linux kernel, the following vulnerability has been resolved: net/sched: fqpie: clamp default quantum to avoid signed overflow fqpieinit sets q-quantum = pschedmtuqdiscdevsch without clamping. A device with a huge MTU e.g. dummy with maxmtu == 0 accepting MTU 2147483634 makes pschedmtu retu...

CVE-2026-90075 net/sched: fq_codel: clamp default quantum and mtu

In the Linux kernel, the following vulnerability has been resolved: net/sched: fqcodel: clamp default quantum and mtu fqcodelinit sets q-quantum = pschedmtuqdiscdevsch without clamping. A device with a huge MTU e.g. dummy with maxmtu == 0 accepting MTU 2147483634 makes pschedmtu return 0x80000000...

CVE-2026-90074 net/sched: fq_pie: clamp default quantum to avoid signed overflow

In the Linux kernel, the following vulnerability has been resolved: net/sched: fqpie: clamp default quantum to avoid signed overflow fqpieinit sets q-quantum = pschedmtuqdiscdevsch without clamping. A device with a huge MTU e.g. dummy with maxmtu == 0 accepting MTU 2147483634 makes pschedmtu retu...

CVE-2026-90075 net/sched: fq_codel: clamp default quantum and mtu

In the Linux kernel, the following vulnerability has been resolved: net/sched: fqcodel: clamp default quantum and mtu fqcodelinit sets q-quantum = pschedmtuqdiscdevsch without clamping. A device with a huge MTU e.g. dummy with maxmtu == 0 accepting MTU 2147483634 makes pschedmtu return 0x80000000...

CVE-2026-90074

In the Linux kernel , the fq_pie network scheduling qdisc sets its default quantum from psched_mtu() without clamping. A device with an extremely large MTU (e.g. a dummy device with max_mtu == 0 accepting MTU 2147483634) causes psched_mtu() to return 0x80000000, which overflows the signed flow-&g...