cve-2024-38574
Vulnerability from cvelistv5
Published
2024-06-19 13:35
Modified
2024-12-19 09:04
Severity ?
Summary
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().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1fd91360a75833b7110af9834ae26c977e1273e0Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9bf48fa19a4b1d186e08b20bf7e5de26a15644fbPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ef80b59acfa4dee4b5eaccb15572b69248831104Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/1fd91360a75833b7110af9834ae26c977e1273e0Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/9bf48fa19a4b1d186e08b20bf7e5de26a15644fbPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/ef80b59acfa4dee4b5eaccb15572b69248831104Patch
Impacted products
Vendor Product Version
Linux Linux Version: df7c3f7d3a3ddab31ca8cfa9b86a8729ec43fd2e
Version: df7c3f7d3a3ddab31ca8cfa9b86a8729ec43fd2e
Version: df7c3f7d3a3ddab31ca8cfa9b86a8729ec43fd2e
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   Linux Linux Version: 6.8
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