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-2024-35892 net/sched: fix lockdep splat in qdisc_tree_reduce_backlog()

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-2024-35880 io_uring/kbuf: hold io_buffer_list reference over mmap

In the Linux kernel, the following vulnerability has been resolved: iouring/kbuf: hold iobufferlist reference over mmap If we look up the kbuf, ensure that it doesn't get unregistered until after we're done with it. Since we're inside mmap, we cannot safely use the iouring lock. Rely on the fact...

CVE-2024-35880 io_uring/kbuf: hold io_buffer_list reference over mmap

In the Linux kernel, the following vulnerability has been resolved: iouring/kbuf: hold iobufferlist reference over mmap If we look up the kbuf, ensure that it doesn't get unregistered until after we're done with it. Since we're inside mmap, we cannot safely use the iouring lock. Rely on the fact...

CVE-2024-35860 bpf: support deferring bpf_link dealloc to after RCU grace period

In the Linux kernel, the following vulnerability has been resolved: bpf: support deferring bpflink dealloc to after RCU grace period BPF link for some program types is passed as a "context" which can be used by those BPF programs to look up additional information. E.g., for multi-kprobes and...

CVE-2024-35860 bpf: support deferring bpf_link dealloc to after RCU grace period

In the Linux kernel, the following vulnerability has been resolved: bpf: support deferring bpflink dealloc to after RCU grace period BPF link for some program types is passed as a "context" which can be used by those BPF programs to look up additional information. E.g., for multi-kprobes and...

CVE-2024-35860

CVE-2024-35860 : Linux kernel vulnerability in deferring bpf_link deallocation to after RCU grace period. When a bpf_link’s refcnt drops to zero, some active BPF programs could still access the link data via context, risking data access. The patch introduces two deallocation callbacks (synchronou...

CVE-2024-35860 bpf: support deferring bpf_link dealloc to after RCU grace period

In the Linux kernel, the following vulnerability has been resolved: bpf: support deferring bpflink dealloc to after RCU grace period BPF link for some program types is passed as a "context" which can be used by those BPF programs to look up additional information. E.g., for multi-kprobes and...

CVE-2024-35857

A flaw was found in the Linux kernel's ICMP protocol. Under some conditions, a NULL pointer dereference can be triggered due to a missing check, causing a system crash and resulting in a denial of service. Mitigation Mitigation for this issue is either not available or the currently available...

CVE-2024-35857

In the Linux kernel, the following vulnerability has been resolved: icmp: prevent possible NULL dereferences from icmpbuildprobe First problem is a double call to indevgetrcu, because the second one could return NULL. if indevgetrcudev && indevgetrcudev-ifalist Second problem is a read from...

AZL-42117 CVE-2024-35857 affecting package hyperv-daemons for versions less than 6.6.35.1-1

In the Linux kernel, the following vulnerability has been resolved: icmp: prevent possible NULL dereferences from icmpbuildprobe First problem is a double call to indevgetrcu, because the second one could return NULL. if indevgetrcudev && indevgetrcudev-ifalist Second problem is a read from...

CVE-2024-35857

In the Linux kernel, the following vulnerability has been resolved: icmp: prevent possible NULL dereferences from icmpbuildprobe First problem is a double call to indevgetrcu, because the second one could return NULL. if indevgetrcudev && indevgetrcudev-ifalist Second problem is a read from...

UBUNTU-CVE-2024-35857

In the Linux kernel, the following vulnerability has been resolved: icmp: prevent possible NULL dereferences from icmpbuildprobe First problem is a double call to indevgetrcu, because the second one could return NULL. if indevgetrcudev && indevgetrcudev-ifalist Second problem is a read from...

CVE-2024-35857

CVE-2024-35857 concerns the Linux kernel and involves two NULL-dereference issues in ICMP handling during icmp_build_probe(). The first defect is a double call to __in_dev_get_rcu(), where the second call could yield NULL, leading to a potential NULL dereference in the conditional path. The secon...

CVE-2024-35857 icmp: prevent possible NULL dereferences from icmp_build_probe()

In the Linux kernel, the following vulnerability has been resolved: icmp: prevent possible NULL dereferences from icmpbuildprobe First problem is a double call to indevgetrcu, because the second one could return NULL. if indevgetrcudev && indevgetrcudev-ifalist Second problem is a read from...

CVE-2024-35857

In the Linux kernel, the following vulnerability has been resolved: icmp: prevent possible NULL dereferences from icmpbuildprobe First problem is a double call to indevgetrcu, because the second one could return NULL. if indevgetrcudev && indevgetrcudev-ifalist Second problem is a read from...

CVE-2024-35857 icmp: prevent possible NULL dereferences from icmp_build_probe()

In the Linux kernel, the following vulnerability has been resolved: icmp: prevent possible NULL dereferences from icmpbuildprobe First problem is a double call to indevgetrcu, because the second one could return NULL. if indevgetrcudev && indevgetrcudev-ifalist Second problem is a read from...

CVE-2024-27396

A use-after-free vulnerability was found in the GPRS Tunneling Protocol GTP subsystem of the Linux kernel. This issue arises from improper management of memory resources in the gtpdellink function. This flaw allows an attacker with local access or network capabilities to execute arbitrary code or...

CVE-2024-27395

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: Fix Use-After-Free in ovsctexit Since kfreercu, which is called in the hlistforeachentryrcu traversal of ovsctlimitexit, is not part of the RCU read critical section, it is possible that the RCU grace period wil...

DEBIAN-CVE-2024-27394

In the Linux kernel, the following vulnerability has been resolved: tcp: Fix Use-After-Free in tcpaoconnectinit Since callrcu, which is called in the hlistforeachentryrcu traversal of tcpaoconnectinit, is not part of the RCU read critical section, it is possible that the RCU grace period will pas...