tnum_scast: rerun CI #8423
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tnum_scast: rerun CI #8423
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There are two bpf_link__destroy(freplace_link) calls in
test_tailcall_bpf2bpf_freplace(). After the first bpf_link__destroy()
is called, if the following bpf_map_{update,delete}_elem() throws an
exception, it will jump to the "out" label and call bpf_link__destroy()
again, causing double free and eventually leading to a segfault.
Fix it by directly resetting freplace_link to NULL after the first
bpf_link__destroy() call.
Fixes: 021611d ("selftests/bpf: Add test to verify tailcall and freplace restrictions")
Signed-off-by: Tengda Wu <[email protected]>
Signed-off-by: Andrii Nakryiko <[email protected]>
Reviewed-by: Leon Hwang <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
Update btf_ext_parse_info() to ensure the core_relo header is present before reading its fields. This avoids a potential buffer read overflow reported by the OSS Fuzz project. Fixes: cf57916 ("libbpf: Support BTF.ext loading and output in either endianness") Signed-off-by: Tony Ambardar <[email protected]> Signed-off-by: Andrii Nakryiko <[email protected]> Link: https://issues.oss-fuzz.com/issues/388905046 Link: https://lore.kernel.org/bpf/[email protected]
The runqslower binary from a cross-endian build currently fails to run because the included skeleton has host endianness. Fix this by passing the target BPF endianness to the runqslower sub-make. Fixes: 5a63c33 ("selftests/bpf: Support cross-endian building") Signed-off-by: Tony Ambardar <[email protected]> Signed-off-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
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