kernel: nfsd: release layout stid on setlease failure

A flaw was found in the Linux kernel's Network File System Daemon nfsd. When a setlease operation fails, the system prematurely releases a layout state identifier. An attacker could exploit this by triggering the failure, leading to a use-after-free vulnerability. This could result in a system...

CVE-2026-74316

In the Linux kernel, the following vulnerability has been resolved: NFSD: Handle layout stid in nfsd4droprevokedstid nfsd4droprevokedstid has no SCTYPELAYOUT case, so when a client sends FREESTATEID for an admin-revoked layout stid, the default branch releases cllock and returns without unhashing...

UBUNTU-CVE-2026-74316

In the Linux kernel, the following vulnerability has been resolved: NFSD: Handle layout stid in nfsd4droprevokedstid nfsd4droprevokedstid has no SCTYPELAYOUT case, so when a client sends FREESTATEID for an admin-revoked layout stid, the default branch releases cllock and returns without unhashing...

CVE-2026-74316 NFSD: Handle layout stid in nfsd4_drop_revoked_stid()

In the Linux kernel, the following vulnerability has been resolved: NFSD: Handle layout stid in nfsd4droprevokedstid nfsd4droprevokedstid has no SCTYPELAYOUT case, so when a client sends FREESTATEID for an admin-revoked layout stid, the default branch releases cllock and returns without unhashing...

nfsd: release layout stid on setlease failure

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CVE-2026-53399

The CVE-2026-53399 issue affects the Linux kernel NFS server (nfsd) where nfs4_alloc_stid() publishes a new stid into cl_stateids with idr_alloc_cyclic under cl_lock, and if nfsd4_layout_setlease() fails, the teardown path frees the layout stateid directly via kmem_cache_free() without idr_remove...