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An issue was discovered in the Linux kernel before 5.11.11. The BPF subsystem does not properly consider that resolved_ids and resolved_sizes are intentionally uninitialized in the vmlinux BPF Type Format (BTF) which can cause a system crash upon an unexpected access attempt (in map_create in kernel/bpf/syscall.c or check_btf_info in kernel/bpf/verifier.c) aka CID-350a5c4dd245.

🗓️ 06 Apr 2021 07:00:00Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 3 Views

BPF bug before 5.11.11 leaves resolved_ids and resolved_sizes uninitialized in BTF, causing crash.

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10 Mar 2023 08:00Current
8.8High risk
Vulners AI Score8.8
CVSS 24.9
CVSS 3.15.5
EPSS0.00109
3