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CVE-2024-38662 Detail

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.


Metrics

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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://git.kernel.org/stable/c/000a65bf1dc04fb2b65e2abf116f0bc0fc2ee7b1 Mailing List  Patch 
https://git.kernel.org/stable/c/000a65bf1dc04fb2b65e2abf116f0bc0fc2ee7b1 Mailing List  Patch 
https://git.kernel.org/stable/c/11e8ecc5b86037fec43d07b1c162e233e131b1d9 Mailing List  Patch 
https://git.kernel.org/stable/c/11e8ecc5b86037fec43d07b1c162e233e131b1d9 Mailing List  Patch 
https://git.kernel.org/stable/c/29467edc23818dc5a33042ffb4920b49b090e63d Mailing List  Patch 
https://git.kernel.org/stable/c/29467edc23818dc5a33042ffb4920b49b090e63d Mailing List  Patch 
https://git.kernel.org/stable/c/6693b172f008846811f48a099f33effc26068e1e Mailing List  Patch 
https://git.kernel.org/stable/c/6693b172f008846811f48a099f33effc26068e1e Mailing List  Patch 
https://git.kernel.org/stable/c/98e948fb60d41447fd8d2d0c3b8637fc6b6dc26d Mailing List  Patch 
https://git.kernel.org/stable/c/98e948fb60d41447fd8d2d0c3b8637fc6b6dc26d Mailing List  Patch 
https://git.kernel.org/stable/c/b81e1c5a3c70398cf76631ede63a03616ed1ba3c Mailing List  Patch 
https://git.kernel.org/stable/c/b81e1c5a3c70398cf76631ede63a03616ed1ba3c Mailing List  Patch 

Weakness Enumeration

CWE-ID CWE Name Source
NVD-CWE-noinfo Insufficient Information cwe source acceptance level NIST  

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2024-38662
NVD Published Date:
06/21/2024
NVD Last Modified:
11/21/2024
Source:
kernel.org