CVE-2024-42151

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-42151
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.
CVSS

No CVSS.

References
Link Resource
https://git.kernel.org/stable/c/1479eaff1f16983d8fda7c5a08a586c21891087d
https://git.kernel.org/stable/c/7f79097b0de97a486b137b750d7dd7b20b519d23
Configurations

No configuration.

History

30 Jul 2024, 13:32

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf: marcar el parámetro bpf_dummy_struct_ops.test_1 como anulable Caso de prueba dummy_st_ops/dummy_init_ret_value pasa NULL como primer parámetro de la función test_1(). Marque este parámetro como anulable para que el verificador sea consciente de tal posibilidad. De lo contrario, NULL verifica el código test_1(): SEC("struct_ops/test_1") int BPF_PROG(test_1, struct bpf_dummy_ops_state *state) { if (!state) return...; ... estado de acceso ... } El verificador podría eliminarlo, lo que provocaría la desreferencia del puntero NULL bajo ciertas condiciones.

30 Jul 2024, 08:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-07-30 08:15

Updated : 2024-07-30 13:32

NVD link : CVE-2024-42151

Mitre link : CVE-2024-42151

CVE.ORG link : CVE-2024-42151

JSON object : View

Products Affected

No product.

CWE

No CWE.