Affected: Alpaquita:25: linux-lts, Alpaquita:stream: linux-lts

In the Linux kernel, the following vulnerability has been resolved:

sched_ext: bpf_iter_scx_dsq_new() should always initialize iterator

BPF programs may call next() and destroy() on BPF iterators even after new() returns an error value (e.g. bpf_for_each() macro ignores error returns from new()). bpf_iter_scx_dsq_new() could leave the iterator in an uninitialized state after an error return causing bpf_iter_scx_dsq_next() to dereference garbage data. Make bpf_iter_scx_dsq_new() always clear $kit->dsq so that next() and destroy() become noops.

In the Linux kernel, the following vulnerability has been resolved:

sched_ext: bpf_iter_scx_dsq_new() should always initialize iterator

BPF programs may call next() and destroy() on BPF iterators even after new() returns an error value (e.g. bpf_for_each() macro ignores error returns from new()). bpf_iter_scx_dsq_new() could leave the iterator in an uninitialized state after an error return causing bpf_iter_scx_dsq_next() to dereference garbage data. Make bpf_iter_scx_dsq_new() always clear $kit->dsq so that next() and destroy() become noops.

microcode_ctl: From CVEorg collector kernel: information leak via transient execution vulnerability in some AMD processors kernel: transient execution vulnerability in some AMD processors kernel: drm/xe/tracing: Fix a potential TP_printk UAF kernel: igb: Fix potential invalid memory access in igb_init_module() kernel: exfat: fix out-of-bounds access of directory entries kernel: nfsd: release svc_expkey/svc_export with rcu_work kernel: zram: fix NULL pointer in comp_algorithm_show() kernel: xen: Xen hypercall page unsafe against speculative attacks (Xen Security Advisory 466) kernel: NFS: Fix potential buffer overflowin nfs_sysfs_link_rpc_client() kernel: acpi: nfit: vmalloc-out-of-bounds Read in acpi_nfit_ctl kernel: bpf: Fix UAF via mismatching bpf_prog/attachment RCU flavors kernel: crypto: pcrypt - Call crypto layer directly when padata_do_parallel() return -EBUSY kernel: af_packet: fix vlan_get_protocol_dgram() vs MSG_PEEK kernel: af_packet: fix vlan_get_tci() vs MSG_PEEK kernel: netfs: Fix the (non-)cancellation of copy when cache is temporarily disabled kernel: netfs: Fix ceph copy to cache on write-begin kernel: memcg: fix soft lockup in the OOM process kernel: usb: xhci: Fix NULL pointer dereference on certain command aborts kernel: xfrm: state: fix out-of-bounds read during lookup kernel: i3c: dw: Fix use-after-free in dw_i3c_master driver due to race condition kernel: HID: core: Fix assumption that Resolution Multipliers must be in Logical Collections kernel: Bluet…

Affected: Ubuntu:16.04:LTS: linux-hwe-edge, Ubuntu:18.04:LTS: linux-aws-5.0, Ubuntu:18.04:LTS: linux-aws-5.3, Ubuntu:18.04:LTS: linux-azure, Ubuntu:18.04:LTS: linux-azure-5.3, Ubuntu:18.04:LTS: linux-azure-edge, Ubuntu:18.04:LTS: linux-gcp, Ubuntu:18.04:LTS: linux-gcp-5.3, Ubuntu:18.04:LTS: linux-gke-4.15, Ubuntu:18.04:LTS: linux-gke-5.4 and 78 more

In the Linux kernel, the following vulnerability has been resolved: sched_ext: bpf_iter_scx_dsq_new() should always initialize iterator BPF programs may call next() and destroy() on BPF iterators even after new() returns an error value (e.g. bpf_for_each() macro ignores error returns from new()). bpf_iter_scx_dsq_new() could leave the iterator in an uninitialized state after an error return causing bpf_iter_scx_dsq_next() to dereference garbage data. Make bpf_iter_scx_dsq_new() always clear $kit->dsq so that next() and destroy() become noops.

Ein lokaler Angreifer kann mehrere Schwachstellen in Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuführen.