9.8

CVE-2026-68154

libceph: reject zero bucket types in crush_decode

In the Linux kernel, the following vulnerability has been resolved:

libceph: reject zero bucket types in crush_decode

CRUSH bucket type 0 is reserved for devices.  The mapper relies on
that invariant and uses type 0 to identify leaf devices.

If crush_decode() accepts a bucket with type 0, a malformed CRUSH map
can make the mapper treat a negative bucket ID as a device and pass it
to is_out(), which then indexes the OSD weight array with a negative
value.

Reject zero bucket types while decoding the CRUSH map so the invalid
state never reaches the mapper.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version f24e9980eb860d8600cbe5ef3d2fd9295320d229
Version < 952ca5dc99913d169263f59fd689f586729a13c1
Status affected
Version f24e9980eb860d8600cbe5ef3d2fd9295320d229
Version < 146461f09565afe3665e65b0423d3d6b0fe806c5
Status affected
Version f24e9980eb860d8600cbe5ef3d2fd9295320d229
Version < 80fc40e11cda1b5d990a3f69c6efa344fb5cd987
Status affected
Version f24e9980eb860d8600cbe5ef3d2fd9295320d229
Version < b8a9fb6bf806f9c4891e71ae1beab0c07c23a877
Status affected
Version f24e9980eb860d8600cbe5ef3d2fd9295320d229
Version < 826cd1de5802fd392922785f9b64d76e65d2a100
Status affected
Version f24e9980eb860d8600cbe5ef3d2fd9295320d229
Version < 3b2f1937f5fce8b7dd5432e7693e3cc8b5eece56
Status affected
Version f24e9980eb860d8600cbe5ef3d2fd9295320d229
Version < 70998f91030ee083ecb336a1dff0701c20a38081
Status affected
Version f24e9980eb860d8600cbe5ef3d2fd9295320d229
Version < 05f90284223381005d6bcddab3fda4a97f9c3401
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 2.6.34
Status affected
Version 0
Version < 2.6.34
Status unaffected
Version <= 5.10.*
Version 5.10.265
Status unaffected
Version <= 5.15.*
Version 5.15.216
Status unaffected
Version <= 6.1.*
Version 6.1.183
Status unaffected
Version <= 6.6.*
Version 6.6.148
Status unaffected
Version <= 6.12.*
Version 6.12.101
Status unaffected
Version <= 6.18.*
Version 6.18.42
Status unaffected
Version <= 7.1.*
Version 7.1.6
Status unaffected
Version <= *
Version 7.2
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.7% 0.506
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
416baaa9-dc9f-4396-8d5f-8c081fb06d67 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/b8a9fb6bf806f9c4891e71ae1beab0c07c23a877
https://git.kernel.org/stable/c/826cd1de5802fd392922785f9b64d76e65d2a100
https://git.kernel.org/stable/c/3b2f1937f5fce8b7dd5432e7693e3cc8b5eece56
https://git.kernel.org/stable/c/70998f91030ee083ecb336a1dff0701c20a38081
https://git.kernel.org/stable/c/05f90284223381005d6bcddab3fda4a97f9c3401
https://git.kernel.org/stable/c/146461f09565afe3665e65b0423d3d6b0fe806c5
https://git.kernel.org/stable/c/80fc40e11cda1b5d990a3f69c6efa344fb5cd987
https://git.kernel.org/stable/c/952ca5dc99913d169263f59fd689f586729a13c1