Vulnerability Details CVE-2024-38574
In the Linux kernel, the following vulnerability has been resolved:
libbpf: Prevent null-pointer dereference when prog to load has no BTF
In bpf_objec_load_prog(), there's no guarantee that obj->btf is non-NULL
when passing it to btf__fd(), and this function does not perform any
check before dereferencing its argument (as bpf_object__btf_fd() used to
do). As a consequence, we get segmentation fault errors in bpftool (for
example) when trying to load programs that come without BTF information.
v2: Keep btf__fd() in the fix instead of reverting to bpf_object__btf_fd().
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 5.8%
CVSS Severity
CVSS v3 Score 5.5
References
- https://git.kernel.org/stable/c/1fd91360a75833b7110af9834ae26c977e1273e0
- https://git.kernel.org/stable/c/9bf48fa19a4b1d186e08b20bf7e5de26a15644fb
- https://git.kernel.org/stable/c/ef80b59acfa4dee4b5eaccb15572b69248831104
- https://git.kernel.org/stable/c/1fd91360a75833b7110af9834ae26c977e1273e0
- https://git.kernel.org/stable/c/9bf48fa19a4b1d186e08b20bf7e5de26a15644fb
- https://git.kernel.org/stable/c/ef80b59acfa4dee4b5eaccb15572b69248831104
Products affected by CVE-2024-38574
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cpe:2.3:o:linux:linux_kernel:6.8
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cpe:2.3:o:linux:linux_kernel:6.8.1
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cpe:2.3:o:linux:linux_kernel:6.8.10
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cpe:2.3:o:linux:linux_kernel:6.8.11
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cpe:2.3:o:linux:linux_kernel:6.8.2
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cpe:2.3:o:linux:linux_kernel:6.8.3
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cpe:2.3:o:linux:linux_kernel:6.8.4
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cpe:2.3:o:linux:linux_kernel:6.8.5
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cpe:2.3:o:linux:linux_kernel:6.8.6
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cpe:2.3:o:linux:linux_kernel:6.8.7
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cpe:2.3:o:linux:linux_kernel:6.8.8
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cpe:2.3:o:linux:linux_kernel:6.8.9
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cpe:2.3:o:linux:linux_kernel:6.9
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cpe:2.3:o:linux:linux_kernel:6.9.1
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cpe:2.3:o:linux:linux_kernel:6.9.2