CVE-2026-31421

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsfw: fix NULL pointer dereference on shared blocks The old-method path in fwclassify calls tcfblockq and dereferences q-handle. Shared blocks leave block-q NULL, causing a NULL deref when an empty clsfw filter is...

CVE-2026-31422 net/sched: cls_flow: fix NULL pointer dereference on shared blocks

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsflow: fix NULL pointer dereference on shared blocks flowchange calls tcfblockq and dereferences q-handle to derive a default baseclass. Shared blocks leave block-q NULL, causing a NULL deref when a flow filter witho...

SUSE CVE-2024-53044

In the Linux kernel, the following vulnerability has been resolved: net/sched: schapi: fix xainsert error path in tcfblockgetext This command: $ tc qdisc replace dev eth0 ingressblock 1 egressblock 1 clsact Error: block dev insert failed: -EBUSY. fails because user space requests the same block...

CVE-2024-53044 net/sched: sch_api: fix xa_insert() error path in tcf_block_get_ext()

In the Linux kernel, the following vulnerability has been resolved: net/sched: schapi: fix xainsert error path in tcfblockgetext This command: $ tc qdisc replace dev eth0 ingressblock 1 egressblock 1 clsact Error: block dev insert failed: -EBUSY. fails because user space requests the same block...

CVE-2024-41010 bpf: Fix too early release of tcx_entry

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix too early release of tcxentry Pedro Pinto and later independently also Hyunwoo Kim and Wongi Lee reported an issue that the tcxentry can be released too early leading to a use after free UAF when an active old-style...

CVE-2024-41010 bpf: Fix too early release of tcx_entry

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix too early release of tcxentry Pedro Pinto and later independently also Hyunwoo Kim and Wongi Lee reported an issue that the tcxentry can be released too early leading to a use after free UAF when an active old-style...