CVE-2026-53032

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NULL deref in map_kptr_match_type for scalar regs Commit ab6c637ad027 ("bpf: Fix a bpf_kptr_xchg() issue with local kptr") refactored map_kptr_match_type() to branch on btf_is_kernel() before checking base_type(). A scalar register stored into a kptr slot has no btf, so the btf_is_kernel(reg->btf) call dereferences NULL. Move the base_type() != PTR_TO_BTF_ID guard before any reg->btf access.

CVSS

No CVSS.

References

Link	Resource
https://git.kernel.org/stable/c/0a36c1f72888bca0237295a4da19cd91821a90be
https://git.kernel.org/stable/c/4d0a375887ab4d49e4da1ff10f9606cab8f7c3ad
https://git.kernel.org/stable/c/520454e839710c327808c2fcc98e28cee77355fc
https://git.kernel.org/stable/c/6982653ce5f119982aa58f1af58e7bfbebf39252
https://git.kernel.org/stable/c/da1d615ce49a47986a8864e2371a26e97861085c

Configurations

No configuration.

History

24 Jun 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-24 17:17

Updated : 2026-06-24 17:17

NVD link : CVE-2026-53032

Mitre link : CVE-2026-53032

CVE.ORG link : CVE-2026-53032

JSON object : View

Products Affected

No product.

CWE

No CWE.

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