CVEvulnerability
CVE-2026-68157
7.5 HIGH
Official page ↗
- Status
- Received
- Published
- 2026-08-10
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-476
Description
In the Linux kernel, the following vulnerability has been resolved:
libceph: guard missing CRUSH type name lookup
Localized read selection can walk a parent bucket whose name exists in
the CRUSH map while its type has no matching entry in type_names.
get_immediate_parent() then dereferences a NULL type_cn and passes an
invalid pointer into strcmp(), causing a null-ptr-deref.
Skip such malformed parent buckets unless both the bucket name and type
name metadata are present. This keeps malformed hierarchy data from
crashing locality lookup and safely falls back to "not local".
[ idryomov: add WARN_ON_ONCE ]
Related
Weakness · CWE (1)
- CWE-476 NULL Pointer Dereference weakness
References
- https://git.kernel.org/stable/c/3767c9f0c1bbd98dd25cb088356a0fc6c1f09f50 git.kernel.org
- https://git.kernel.org/stable/c/4716a64b7cc2797741f7be4e283ace78a9dff37d git.kernel.org
- https://git.kernel.org/stable/c/6a4b75d90f0cfbf22c14742ab35a803bc13f36ec git.kernel.org
- https://git.kernel.org/stable/c/8ff579ac03d6e9d17d6d9c8443110167c14a382d git.kernel.org
- https://git.kernel.org/stable/c/bbeae12fda3384a90fbebc8a19ba9d33f85b5361 git.kernel.org
- https://git.kernel.org/stable/c/c46d82c47afc968d6ee8ef4470fa2dd35b765c21 git.kernel.org
- https://git.kernel.org/stable/c/cbfcba275326c8c7dae9acd8f4a0d4c316fdafb0 git.kernel.org
- https://git.kernel.org/stable/c/db9cc9fd9660b2d69ee66f5a4cbec83c21a1c64d git.kernel.org