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

nfsd: set SC_STATUS_FREED in nfsd4_drop_revoked_stid for delegations

nfsd4_drop_revoked_stid() handles FREE_STATEID for admin-revoked
delegations but does not set SC_STATUS_FREED before releasing cl_lock.
revoke_delegation() uses this flag to detect whether FREE_STATEID has
already processed the delegation -- without it, the freed delegation is
added to cl_revoked via list_add(), producing a use-after-free when
cl_revoked is later traversed in __destroy_client().

The SC_STATUS_REVOKED path in nfsd4_free_stateid() (line 7983) already
sets SC_STATUS_FREED correctly. Apply the same pattern to the
SC_STATUS_ADMIN_REVOKED path in nfsd4_drop_revoked_stid().

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
8dd91e8d31febf4d9cca3ae1bb4771d33ae7ee5a affected < d832a0587528853d45481d1faf75d4b5d062adaf
8dd91e8d31febf4d9cca3ae1bb4771d33ae7ee5a affected < 1e4795766719ffd74b8cf0f2fde4a1350f8326bf
8dd91e8d31febf4d9cca3ae1bb4771d33ae7ee5a affected < a6d89032e5c6620d5bb44582a72555ce07bf1c2e
8dd91e8d31febf4d9cca3ae1bb4771d33ae7ee5a affected < 650d370cfbc66a96dd14d517bd704689b5bda4e5
967faa26f313a62e7bebc55d5b8122eaee43b929 affected —
6.11.6 affected < 6.12
Linux Linux affected
Version Status Constraints
6.12 affected —
0 unaffected < 6.12
6.12.109 unaffected ≤ 6.12.*
6.18.50 unaffected ≤ 6.18.*
7.2.4 unaffected ≤ 7.2.*
7.3-rc1 unaffected ≤ *

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Fixes

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References
Link Providers
https://git.kernel.org/stable/c/1e4795766719ffd74b8cf0f2fde4a1350f8326bf cve-icon cve-icon
https://git.kernel.org/stable/c/650d370cfbc66a96dd14d517bd704689b5bda4e5 cve-icon cve-icon
https://git.kernel.org/stable/c/a6d89032e5c6620d5bb44582a72555ce07bf1c2e cve-icon cve-icon
https://git.kernel.org/stable/c/d832a0587528853d45481d1faf75d4b5d062adaf cve-icon cve-icon
History

Fri, 11 Sep 2026 23:45:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: nfsd: set SC_STATUS_FREED in nfsd4_drop_revoked_stid for delegations nfsd4_drop_revoked_stid() handles FREE_STATEID for admin-revoked delegations but does not set SC_STATUS_FREED before releasing cl_lock. revoke_delegation() uses this flag to detect whether FREE_STATEID has already processed the delegation -- without it, the freed delegation is added to cl_revoked via list_add(), producing a use-after-free when cl_revoked is later traversed in __destroy_client(). The SC_STATUS_REVOKED path in nfsd4_free_stateid() (line 7983) already sets SC_STATUS_FREED correctly. Apply the same pattern to the SC_STATUS_ADMIN_REVOKED path in nfsd4_drop_revoked_stid().
Title nfsd: set SC_STATUS_FREED in nfsd4_drop_revoked_stid for delegations
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-09-11T19:46:20.280Z

Reserved: 2026-09-11T19:38:34.750Z

Link: CVE-2026-89703

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-11T20:19:57.537

Modified: 2026-09-11T20:19:57.537

Link: CVE-2026-89703

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.