CVE-2026-72057

In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: preserve tcskbcb across defragmentation tcfcthandlefragments calls nfcthandlefragments without saving and restoring skb-cb. The defrag helper clears IPCB/IP6CB, which aliases the tcskbcb/qdiscskbcb control buffe...

CVE-2026-72036

In the Linux kernel, the following vulnerability has been resolved: net/sched: schmultiq: Replace direct dequeue call with peek and qdiscdequeuepeeked multiqdequeue takes a packet from a band's child with a direct -dequeue call after multiqpeek peeked it. When the child is non-work-conserving the...

UBUNTU-CVE-2026-72181

In the Linux kernel, the following vulnerability has been resolved: mips: sched: Fix CPUMASKOFFSTACK memory corruption This patch addresses a critical memory management flaw. When CONFIGCPUMASKOFFSTACK is enabled, cpumaskvart is a pointer. Consequently, sizeofnewmask evaluates to the pointer size...

UBUNTU-CVE-2026-72036

In the Linux kernel, the following vulnerability has been resolved: net/sched: schmultiq: Replace direct dequeue call with peek and qdiscdequeuepeeked multiqdequeue takes a packet from a band's child with a direct -dequeue call after multiqpeek peeked it. When the child is non-work-conserving the...

UBUNTU-CVE-2026-72035

In the Linux kernel, the following vulnerability has been resolved: net/sched: schtaprio: Replace direct dequeue call with peek and qdiscdequeuepeeked When taprio's software path peeks a non-work-conserving child qdisc, the child stashes the peeked skb in its gsoskb; tapriodequeuefromtxq then tak...

EUVD-2026-59437

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsflow: Dont expose folded kernel pointers The flow classifier falls back to addrfold for fields that are missing from packet headers. In map mode, userspace controls mask, xor, rshift, addend and divisor, and can...

CVE-2026-74284 net/sched: sch_hfsc: Don't make class passive twice

In the Linux kernel, the following vulnerability has been resolved: net/sched: schhfsc: Don't make class passive twice updatevf is called from two places for the same class during a single dequeue when the class's child qdisc e.g. codel/fqcodel drops its last packets while dequeuing: 1. The child...

EUVD-2026-59329

In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: fix nfconnlabels leak on two error paths tcfctfillparams calls nfconnlabelsget setting putlabels when TCACTLABELS is present, but two later error sites use a bare return instead of "goto err", skipping the err:...

CVE-2026-72430 net/sched: act_ct: fix nf_connlabels leak on two error paths

In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: fix nfconnlabels leak on two error paths tcfctfillparams calls nfconnlabelsget setting putlabels when TCACTLABELS is present, but two later error sites use a bare return instead of "goto err", skipping the err:...

CVE-2026-72390 net/sched: sch_teql: Introduce slaves_lock to avoid race condition and UAF

In the Linux kernel, the following vulnerability has been resolved: net/sched: schteql: Introduce slaveslock to avoid race condition and UAF The teql master-slaves singly linked list is not protected against multiple writes. It can be mod'ed concurently from teqlmasterxmit, teqldequeue, teqlinit...

CVE-2026-72390

The CVE-2026-72390 issue is in the Linux kernel net/sched sch_teql implementation. The teql master->slaves singly linked list was not protected against concurrent writes, allowing a slab-use-after-free via teql_master_xmit() while another CPU could hold a stale pointer to the list. The fix add...

CVE-2026-72390 net/sched: sch_teql: Introduce slaves_lock to avoid race condition and UAF

In the Linux kernel, the following vulnerability has been resolved: net/sched: schteql: Introduce slaveslock to avoid race condition and UAF The teql master-slaves singly linked list is not protected against multiple writes. It can be mod'ed concurently from teqlmasterxmit, teqldequeue, teqlinit...

CVE-2026-72338 net/sched: act_pedit: fix TOCTOU heap OOB write in tc offload

In the Linux kernel, the following vulnerability has been resolved: net/sched: actpedit: fix TOCTOU heap OOB write in tc offload There is a TOCTOU race condition in flower lockless approach between sizing a flowrule buffer and filling it. [email protected] reports: The clsflower...

CVE-2026-72326 net/sched: cake: reject overhead values that underflow length

In the Linux kernel, the following vulnerability has been resolved: net/sched: cake: reject overhead values that underflow length CAKE accepts signed overhead values and stores them in an s16, but the adjusted packet length calculation uses unsigned arithmetic. A negative effective length can...

CVE-2026-72181 mips: sched: Fix CPUMASK_OFFSTACK memory corruption

In the Linux kernel, the following vulnerability has been resolved: mips: sched: Fix CPUMASKOFFSTACK memory corruption This patch addresses a critical memory management flaw. When CONFIGCPUMASKOFFSTACK is enabled, cpumaskvart is a pointer. Consequently, sizeofnewmask evaluates to the pointer size...

CVE-2026-72057 net/sched: act_ct: preserve tc_skb_cb across defragmentation

In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: preserve tcskbcb across defragmentation tcfcthandlefragments calls nfcthandlefragments without saving and restoring skb-cb. The defrag helper clears IPCB/IP6CB, which aliases the tcskbcb/qdiscskbcb control buffe...

CVE-2026-72036 net/sched: sch_multiq: Replace direct dequeue call with peek and qdisc_dequeue_peeked

In the Linux kernel, the following vulnerability has been resolved: net/sched: schmultiq: Replace direct dequeue call with peek and qdiscdequeuepeeked multiqdequeue takes a packet from a band's child with a direct -dequeue call after multiqpeek peeked it. When the child is non-work-conserving the...

CVE-2026-72035

CVE-2026-72035 involves the Linux kernel net/sched, specifically sch_taprio. A direct dequeue call was replaced with a peek-based path via qdisc_dequeue_peeked to correct a bug where tapping a non-work-conserving child qdisc could cause an orphaned or desynced skb and, in some cases, dereference ...

CVE-2026-74266: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net/sched: schdualpi2: Do not call qdisctreereducebacklog during peek before restoring qlen Whenever dualpi2 drops packets during peek, it calls qdisctreereducebacklog. An issue arises because it calls qdisctreereducebacklog befo...

CVE-2026-74284: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net/sched: schhfsc: Don't make class passive twice updatevf is called from two places for the same class during a single dequeue when the class's child qdisc e.g. codel/fqcodel drops its last packets while dequeuing: 1. The child...