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CVE-2026-23136

libceph: reset sparse-read state in osd_fault() PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: libceph: reset sparse-read state in osd_fault() When a fault occurs, the connection is abandoned, reestablished, and any pending operations are retried. The OSD client tracks the progress of a sparse-read reply using a separate state machine, largely independent of the messenger's state. If a connection is lost mid-payload or the sparse-read state machine returns an error, the sparse-read state is not reset. The OSD client will then interpret the beginning of a new reply as the continuation of the old one. If this makes the sparse-read machinery enter a failure state, it may never recover, producing loops like: libceph: [0] got 0 extents libceph: data len 142248331 != extent len 0 libceph: osd0 (1)...:6801 socket error on read libceph: data len 142248331 != extent len 0 libceph: osd0 (1)...:6801 socket error on read Therefore, reset the sparse-read state in osd_fault(), ensuring retries start from a clean state.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected f628d799972799023d32c2542bb2639eb8c4f84e before 90a60fe61908afa0eaf7f8fcf1421b9b50e5f7ff; affected f628d799972799023d32c2542bb2639eb8c4f84e before e94075e950a6598e710b9f7dffea5aa388f40313; affected f628d799972799023d32c2542bb2639eb8c4f84e before 10b7c72810364226f7b27916ea3e2a4f870bc04b; affected f628d799972799023d32c2542bb2639eb8c4f84e before 11194b416ef95012c2cfe5f546d71af07b639e93
Linux / Linuxaffected 6.6; unaffected 0 before 6.6; unaffected 6.6.121 through 6.6.*; unaffected 6.12.66 through 6.12.*; unaffected 6.18.6 through 6.18.*; unaffected 6.19 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.