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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database

Vulnerability Change Records for CVE-2024-42151

Change History

New CVE Received by NIST 7/30/2024 4:15:06 AM

Action Type Old Value New Value
Added Description 

								
							
							
								
							
						
								
							
								
In the Linux kernel, the following vulnerability has been resolved:

bpf: mark bpf_dummy_struct_ops.test_1 parameter as nullable

Test case dummy_st_ops/dummy_init_ret_value passes NULL as the first
parameter of the test_1() function. Mark this parameter as nullable to
make verifier aware of such possibility.
Otherwise, NULL check in the test_1() code:

      SEC("struct_ops/test_1")
      int BPF_PROG(test_1, struct bpf_dummy_ops_state *state)
      {
            if (!state)
                    return ...;

            ... access state ...
      }

Might be removed by verifier, thus triggering NULL pointer dereference
under certain conditions.

								
								
					

					

						Added
						Reference
						
							
							
								
							
								

								
							
							
								
							
						
								
							
								
kernel.org https://git.kernel.org/stable/c/1479eaff1f16983d8fda7c5a08a586c21891087d [No types assigned]

								
								
					

					

						Added
						Reference
						
							
							
								
							
								

								
							
							
								
							
						
								
							
								
kernel.org https://git.kernel.org/stable/c/7f79097b0de97a486b137b750d7dd7b20b519d23 [No types assigned]