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CVE-2024-26591

Public on 2024-02-22
Modified on 2024-02-28
Description

bpf: Fix re-attachment branch in bpf_tracing_prog_attach

The following case can cause a crash due to missing attach_btf:

1) load rawtp program
2) load fentry program with rawtp as target_fd
3) create tracing link for fentry program with target_fd = 0
4) repeat 3

Severity
Medium
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CVSS v3 Base Score
5.5
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Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Kernel-5.15 Extra kernel 2024-02-01 20:10 ALAS2KERNEL-5.15-2024-036
Amazon Linux 2023 kernel 2024-02-15 02:51 ALAS2023-2024-519

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD CVSSv3 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H