CVE-2026-53032
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
bpf: Fix NULL deref in map_kptr_match_type for scalar regs
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| ab6c637ad0276e42f8acabcbc64932a6d346dab3 | affected | git | 520454e839710c327808c2fcc98e28cee77355fc | Unavailable | None listed |
| ab6c637ad0276e42f8acabcbc64932a6d346dab3 | affected | git | 0a36c1f72888bca0237295a4da19cd91821a90be | Unavailable | None listed |
| ab6c637ad0276e42f8acabcbc64932a6d346dab3 | affected | git | 6982653ce5f119982aa58f1af58e7bfbebf39252 | Unavailable | None listed |
| ab6c637ad0276e42f8acabcbc64932a6d346dab3 | affected | git | da1d615ce49a47986a8864e2371a26e97861085c | Unavailable | None listed |
| ab6c637ad0276e42f8acabcbc64932a6d346dab3 | affected | git | 4d0a375887ab4d49e4da1ff10f9606cab8f7c3ad | Unavailable | None listed |
| af3d2e0f3a54e67806959d161e613457772babc5 | affected | git | Unavailable | Unavailable | None listed |
| 4782968e0d631b0d8944dcfd4bf8fb49be087101 | affected | git | Unavailable | Unavailable | None listed |
| 6.4.16 | affected | semver | 6.5 | Unavailable | None listed |
| 6.5.3 | affected | semver | 6.6 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 6.6 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.6 | Unavailable | None listed |
| 6.6.141 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.91 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.33 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.0.10 | unaffected | semver | Unavailable | 7.0.* | None listed |
| 7.1 | unaffected | original_commit_for_fix | Unavailable | * | None listed |