CVE-2026-68157
Detail
Received This CVE record has recently been published to the CVE List and has been included within the NVD dataset.
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 ]
Metrics
CVSS Version 4.0
CVSS Version 3.x
CVSS Version 2.0
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 3.x Severity and Vector Strings:
NVD assessment
not yet provided.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 Severity and Vector Strings:
NVD assessment
not yet provided.
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Change History
4 change records found show changes
CVE Modified by kernel.org
8/19/2026 1:20:32 PM
Action
Type
Old Value
New Value
Added
Reference
https://git.kernel.org/stable/c/6a4b75d90f0cfbf22c14742ab35a803bc13f36ec
Added
Reference
https://git.kernel.org/stable/c/8ff579ac03d6e9d17d6d9c8443110167c14a382d
Added
Reference
https://git.kernel.org/stable/c/cbfcba275326c8c7dae9acd8f4a0d4c316fdafb0
Changed
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["net/ceph/osdmap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"117d96a04f007ce8fc2e292369056c3bd09f6f63","lessThan":"c46d82c47afc968d6ee8ef4470fa2dd35b765c21","versionType":"git","status":"affected"},{"version":"117d96a04f007ce8fc2e292369056c3bd09f6f63","lessThan":"3767c9f0c1bbd98dd25cb088356a0fc6c1f09f50","versionType":"git","status":"affected"},{"version":"117d96a04f007ce8fc2e292369056c3bd09f6f63","lessThan":"4716a64b7cc2797741f7be4e283ace78a9dff37d","versionType":"git","status":"affected"},{"version":"117d96a04f007ce8fc2e292369056c3bd09f6f63","lessThan":"db9cc9fd9660b2d69ee66f5a4cbec83c21a1c64d","versionType":"git","status":"affected"},{"version":"117d96a04f007ce8fc2e292369056c3bd09f6f63","lessThan":"bbeae12fda3384a90fbebc8a19ba9d33f85b5361","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["net/ceph/osdmap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.8","status":"affected"},{"version":"0","lessThan":"5.8","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
Record truncated, showing 2048 of 2445 characters.
View Entire Change Record [{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["net/ceph/osdmap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"117d96a04f007ce8fc2e292369056c3bd09f6f63","lessThan":"cbfcba275326c8c7dae9acd8f4a0d4c316fdafb0","versionType":"git","status":"affected"},{"version":"117d96a04f007ce8fc2e292369056c3bd09f6f63","lessThan":"8ff579ac03d6e9d17d6d9c8443110167c14a382d","versionType":"git","status":"affected"},{"version":"117d96a04f007ce8fc2e292369056c3bd09f6f63","lessThan":"6a4b75d90f0cfbf22c14742ab35a803bc13f36ec","versionType":"git","status":"affected"},{"version":"117d96a04f007ce8fc2e292369056c3bd09f6f63","lessThan":"c46d82c47afc968d6ee8ef4470fa2dd35b765c21","versionType":"git","status":"affected"},{"version":"117d96a04f007ce8fc2e292369056c3bd09f6f63","lessThan":"3767c9f0c1bbd98dd25cb088356a0fc6c1f09f50","versionType":"git","status":"affected"},{"version":"117d96a04f007ce8fc2e292369056c3bd09f6f63","lessThan":"4716a64b7cc2797741f7be4e283ace78a9dff37d","versionType":"git","status":"affected"},{"version":"117d96a04f007ce8fc2e292369056c3bd09f6f63","lessThan":"db9cc9fd9660b2d69ee66f5a4cbec83c21a1c64d","versionType":"git","status":"affected"},{"version":"117d96a04f007ce8fc2e292369056c3bd09f6f63","lessThan":"bbeae12fda3384a90fbebc8a19ba9d33f85b5361","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["net/ceph/osdmap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.8","status":"affected"},{"version":"0","lessThan":"5.8","versionType":"semver","status":"unaffected"},{"version":"5.10.265","lessThanOrEqual":"5.10.*","versionType":"semver","status":"unaffected"},{"version":"5.15.216","lessThanOrEqual":"5.15.*","versionType":"semver","status":"unaffected"},{"version":"6.1.183","lessThanOrEqual":"6.1.*","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"
CVE Modified by kernel.org
8/17/2026 1:18:16 AM
Action
Type
Old Value
New Value
Changed
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["net/ceph/osdmap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"117d96a04f007ce8fc2e292369056c3bd09f6f63","lessThan":"c46d82c47afc968d6ee8ef4470fa2dd35b765c21","versionType":"git","status":"affected"},{"version":"117d96a04f007ce8fc2e292369056c3bd09f6f63","lessThan":"3767c9f0c1bbd98dd25cb088356a0fc6c1f09f50","versionType":"git","status":"affected"},{"version":"117d96a04f007ce8fc2e292369056c3bd09f6f63","lessThan":"4716a64b7cc2797741f7be4e283ace78a9dff37d","versionType":"git","status":"affected"},{"version":"117d96a04f007ce8fc2e292369056c3bd09f6f63","lessThan":"db9cc9fd9660b2d69ee66f5a4cbec83c21a1c64d","versionType":"git","status":"affected"},{"version":"117d96a04f007ce8fc2e292369056c3bd09f6f63","lessThan":"bbeae12fda3384a90fbebc8a19ba9d33f85b5361","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["net/ceph/osdmap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.8","status":"affected"},{"version":"0","lessThan":"5.8","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2-rc5","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["net/ceph/osdmap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"117d96a04f007ce8fc2e292369056c3bd09f6f63","lessThan":"c46d82c47afc968d6ee8ef4470fa2dd35b765c21","versionType":"git","status":"affected"},{"version":"117d96a04f007ce8fc2e292369056c3bd09f6f63","lessThan":"3767c9f0c1bbd98dd25cb088356a0fc6c1f09f50","versionType":"git","status":"affected"},{"version":"117d96a04f007ce8fc2e292369056c3bd09f6f63","lessThan":"4716a64b7cc2797741f7be4e283ace78a9dff37d","versionType":"git","status":"affected"},{"version":"117d96a04f007ce8fc2e292369056c3bd09f6f63","lessThan":"db9cc9fd9660b2d69ee66f5a4cbec83c21a1c64d","versionType":"git","status":"affected"},{"version":"117d96a04f007ce8fc2e292369056c3bd09f6f63","lessThan":"bbeae12fda3384a90fbebc8a19ba9d33f85b5361","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["net/ceph/osdmap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.8","status":"affected"},{"version":"0","lessThan":"5.8","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
CVE Modified by kernel.org
8/13/2026 7:17:21 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
New CVE Received from kernel.org
8/10/2026 9:20:01 AM
Action
Type
Old Value
New Value
Added
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 ]
Added
Reference
https://git.kernel.org/stable/c/3767c9f0c1bbd98dd25cb088356a0fc6c1f09f50
Added
Reference
https://git.kernel.org/stable/c/4716a64b7cc2797741f7be4e283ace78a9dff37d
Added
Reference
https://git.kernel.org/stable/c/bbeae12fda3384a90fbebc8a19ba9d33f85b5361
Added
Reference
https://git.kernel.org/stable/c/c46d82c47afc968d6ee8ef4470fa2dd35b765c21
Added
Reference
https://git.kernel.org/stable/c/db9cc9fd9660b2d69ee66f5a4cbec83c21a1c64d
Added
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["net/ceph/osdmap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"117d96a04f007ce8fc2e292369056c3bd09f6f63","lessThan":"c46d82c47afc968d6ee8ef4470fa2dd35b765c21","versionType":"git","status":"affected"},{"version":"117d96a04f007ce8fc2e292369056c3bd09f6f63","lessThan":"3767c9f0c1bbd98dd25cb088356a0fc6c1f09f50","versionType":"git","status":"affected"},{"version":"117d96a04f007ce8fc2e292369056c3bd09f6f63","lessThan":"4716a64b7cc2797741f7be4e283ace78a9dff37d","versionType":"git","status":"affected"},{"version":"117d96a04f007ce8fc2e292369056c3bd09f6f63","lessThan":"db9cc9fd9660b2d69ee66f5a4cbec83c21a1c64d","versionType":"git","status":"affected"},{"version":"117d96a04f007ce8fc2e292369056c3bd09f6f63","lessThan":"bbeae12fda3384a90fbebc8a19ba9d33f85b5361","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["net/ceph/osdmap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.8","status":"affected"},{"version":"0","lessThan":"5.8","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2-rc5","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
Quick Info
CVE Dictionary Entry: CVE-2026-68157 NVD
Published Date: 08/10/2026 NVD
Last Modified: 08/19/2026
Source: kernel.org
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