CVE-2021-47418 net_sched: fix NULL deref in fifo_set_limit()

In the Linux kernel, the following vulnerability has been resolved: netsched: fix NULL deref in fifosetlimit syzbot reported another NULL deref in fifosetlimit 1 I could repro the issue with : unshare -n tc qd add dev lo root handle 1:0 tbf limit 200000 burst 70000 rate 100Mbit tc qd replace dev ...

CVE-2021-47395

In the Linux kernel, the following vulnerability has been resolved: mac80211: limit injected vht mcs/nss in ieee80211parsetxradiotap Limit max values for vht mcs and nss in ieee80211parsetxradiotap routine in order to fix the following warning reported by syzbot: WARNING: CPU: 0 PID: 10717 at...

CVE-2021-47395 mac80211: limit injected vht mcs/nss in ieee80211_parse_tx_radiotap

In the Linux kernel, the following vulnerability has been resolved: mac80211: limit injected vht mcs/nss in ieee80211parsetxradiotap Limit max values for vht mcs and nss in ieee80211parsetxradiotap routine in order to fix the following warning reported by syzbot: WARNING: CPU: 0 PID: 10717 at...

CVE-2021-47390

CVE-2021-47390 concerns the Linux kernel KVM path on x86, where KASAN reports a stack-out-of-bounds access in kvm_make_vcpus_request_mask() when handling IOAPIC indirect requests. The root cause is that the vcpu_bitmap is allocated as a single stack long instead of a size equal to KVM_MAX_VCPUS, ...

CVE-2021-47376

CVE-2021-47376 is a Linux kernel issue where an oversize allocation in kmalloc path could trigger a warning during BPF verification. The provided description and connected advisories indicate the fix adds an oversize check before kvcalloc() via the commit that introduces the guard in mm/kvmalloc(...

CVE-2021-47370 mptcp: ensure tx skbs always have the MPTCP ext

In the Linux kernel, the following vulnerability has been resolved: mptcp: ensure tx skbs always have the MPTCP ext Due to signed/unsigned comparison, the expression: info-sizegoal - skb-len 0 evaluates to true when the size goal is smaller than the skb size. That results in lack of tx cache...

CVE-2021-47262

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Ensure liveliness of nested VM-Enter fail tracepoint message Use the string machinery provided by the tracing subystem to make a copy of the string literals consumed by the "nested VM-Enter failed" tracepoint. A complet...

CVE-2021-47230

CVE-2021-47230 affects the Linux kernel KVM on x86. The vulnerability arises from a lack of synchronization between the vCPU SMM flag and the MMU’s SMM flag, so that when RSM is not emulated correctly, KVM can bail out and leave the MMU in an inconsistent state. This misalignment can cause a NULL...

CVE-2024-36007

In the Linux kernel, the following vulnerability has been resolved: mlxsw: spectrumacltcam: Fix warning during rehash As previously explained, the rehash delayed work migrates filters from one region to another. This is done by iterating over all chunks all the filters with the same priority in t...

CVE-2024-35995

In the Linux kernel, the following vulnerability has been resolved: ACPI: CPPC: Use accesswidth over bitwidth for system memory accesses To align with ACPI 6.3+, since bitwidth can be any 8-bit value, it cannot be depended on to be always on a clean 8b boundary. This was uncovered on the Cobalt 1...

CVE-2024-36007 mlxsw: spectrum_acl_tcam: Fix warning during rehash

In the Linux kernel, the following vulnerability has been resolved: mlxsw: spectrumacltcam: Fix warning during rehash As previously explained, the rehash delayed work migrates filters from one region to another. This is done by iterating over all chunks all the filters with the same priority in t...

CVE-2024-36007

The CVE-2024-36007 issue relates to the Linux kernel mlxsw spectrum_acl_tcam rehash process. The problem was that on error the chunk marker was reset while entry markers remained relative to it, risking resuming migration from an entry not in the current chunk and causing a chunk to be processed ...

CVE-2024-36006 mlxsw: spectrum_acl_tcam: Fix incorrect list API usage

In the Linux kernel, the following vulnerability has been resolved: mlxsw: spectrumacltcam: Fix incorrect list API usage Both the function that migrates all the chunks within a region and the function that migrates all the entries within a chunk call listfirstentry on the respective lists without...

CVE-2024-36004 i40e: Do not use WQ_MEM_RECLAIM flag for workqueue

In the Linux kernel, the following vulnerability has been resolved: i40e: Do not use WQMEMRECLAIM flag for workqueue Issue reported by customer during SRIOV testing, call trace: When both i40e and the i40iw driver are loaded, a warning in checkflushdependency is being triggered. This seems to be...

CVE-2024-35995

CVE-2024-35995 describes a Linux kernel issue where the ACPI CPPC code misread system memory by relying on bit_width, risking incorrect memory access. The fix switches to using access_width for size calculation and reads/writes using an offset and width, with a fallback to bit_width if access_wid...

CVE-2024-35989 dmaengine: idxd: Fix oops during rmmod on single-CPU platforms

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Fix oops during rmmod on single-CPU platforms During the removal of the idxd driver, registered offline callback is invoked as part of the clean up process. However, on systems with only one CPU online, no valid...

CVE-2024-35973 geneve: fix header validation in geneve[6]_xmit_skb

In the Linux kernel, the following vulnerability has been resolved: geneve: fix header validation in geneve6xmitskb syzbot is able to trigger an uninit-value in genevexmit 1 Problem : While most ip tunnel helpers like iptunnelgetdsfield uses skbprotocolskb, true, pskbinetmaypull is only using...

CVE-2024-35892

In the Linux kernel, the following vulnerability has been resolved: net/sched: fix lockdep splat in qdisctreereducebacklog qdisctreereducebacklog is called with the qdisc lock held, not RTNL. We must use qdisclookuprcu instead of qdisclookup syzbot reported: WARNING: suspicious RCU usage...

CVE-2024-35892

CVE-2024-35892 stems from a Linux kernel net/sched issue where qdisc_tree_reduce_backlog() was called with the qdisc lock held while RTNL was not held, triggering a lockdep splat due to unsafe RCU usage. The fix switches from qdisc_lookup() to qdisc_lookup_rcu() to safely dereference qdisc data u...

CVE-2024-22429

Dell BIOS contains an Improper Input Validation vulnerability. A local authenticated malicious user with admin privileges could potentially exploit this vulnerability, leading to arbitrary code execution...