CVE-2024-38662 — Improper Input Validation in Linux
Severity
4.7MEDIUMNVD
OSV5.5
EPSS
0.0%
top 89.40%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJun 21
Latest updateSep 25
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…
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:NExploitability: 1.0 | Impact: 3.6