vulnerability

Huawei EulerOS: CVE-2024-38662: kernel security update

Severity
4
CVSS
(AV:L/AC:M/Au:S/C:N/I:C/A:N)
Published
Jun 21, 2024
Added
Oct 9, 2024
Modified
Jan 30, 2025

Description

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

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 map_delete
on a sockmap/sockhash.

We don't intend to support this artificial use scenario. Extend the
existing verifier allowed-program-type check for updating sockmap/sockhash
to also cover deleting from a map.

From now on only BPF programs which were previously allowed to update
sockmap/sockhash can delete from these map types.

Solutions

huawei-euleros-2_0_sp12-upgrade-bpftoolhuawei-euleros-2_0_sp12-upgrade-kernelhuawei-euleros-2_0_sp12-upgrade-kernel-abi-stablelistshuawei-euleros-2_0_sp12-upgrade-kernel-toolshuawei-euleros-2_0_sp12-upgrade-kernel-tools-libshuawei-euleros-2_0_sp12-upgrade-python3-perf
Title
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