Siemens SIMATIC Devices Improper Input Validation (CVE-2024-38662)

bpf: Allow delete from sockmap/sockhash only if update is allowed. We have seen an influx of syzkaller reports where a BPF program attached to a tracepoint triggers a locking rule violation by performing a mapdelete on a sockmap/sockhash. We don't intend to support this artificial use scenario...

Siemens SIMATIC Devices Improper Locking (CVE-2024-35895)

"In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Prevent lock inversion deadlock in map delete elem syzkaller started using corpuses where a BPF tracing program deletes elements from a sockmap/sockhash map. Because BPF tracing programs can be invoked from any...

kernel: bpf, sockmap: Prevent lock inversion deadlock in map delete elem

CVE-2024-35895 addresses a vulnerability in the Linux kernel's Berkeley Packet Filter BPF subsystem, specifically within the sockmap feature. The issue arises when BPF tracing programs, which can execute in various interrupt contexts, attempt to delete elements from sockmap or sockhash maps. This...