CVE-2026-53032
- Source
- https://cve.org/CVERecord?id=CVE-2026-53032
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53032.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-53032
- Downstream
BELL (1)
DEBIAN (1)
openSUSE (1)
SUSE (11)
- Related
- Published
- 2026-06-24T16:29:39Z
- Modified
- 2026-10-08T02:51:04Z
- Summary
- bpf: Fix NULL deref in map_kptr_match_type for scalar regs
- Details
-
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.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53032.json" }- References
-
- 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
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53032.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-53032
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedab6c637ad0276e42f8acabcbc64932a6d346dab3Fixed520454e839710c327808c2fcc98e28cee77355fcFixed0a36c1f72888bca0237295a4da19cd91821a90beFixed6982653ce5f119982aa58f1af58e7bfbebf39252Fixedda1d615ce49a47986a8864e2371a26e97861085cFixed4d0a375887ab4d49e4da1ff10f9606cab8f7c3ad
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.4.16Fixed6.5
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.5.3Fixed6.6
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedaf3d2e0f3a54e67806959d161e613457772babc5
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced4782968e0d631b0d8944dcfd4bf8fb49be087101