Unity Linux 20.1050e / 20.1060e Security Update: kernel (UTSA-2026-081025)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-081025 advisory. In the Linux kernel, the following vulnerability has been resolved: NFSD: Define a proclayoutcommit for the FlexFiles layout type Avoid a crash if a pNFS client shou...

kernel: pNFS: Fix use-after-free in pnfs_update_layout()

A flaw was found in the Linux kernel's parallel Network File System pNFS component. An issue in the pnfsupdatelayout function causes a use-after-free vulnerability due to incorrect ordering of memory management operations. This flaw can be triggered when the system attempts to update a pNFS layou...

kernel: NFSv4/pNFS: reject zero-length r_addr in nfs4_decode_mp_ds_addr

A flaw was found in the Linux kernel's NFSv4/pNFS implementation. The nfs4decodempdsaddr function, responsible for decoding network address information, does not properly handle zero-length raddr opaque data. A malicious or compromised metadata server can exploit this by providing a zero-length...

kernel: pNFS: Fix use-after-free in pnfs_update_layout()

A flaw was found in the Linux kernel's parallel Network File System pNFS component. An issue in the pnfsupdatelayout function causes a use-after-free vulnerability due to incorrect ordering of memory management operations. This flaw can be triggered when the system attempts to update a pNFS layou...

kernel: NFSv4/pNFS: reject zero-length r_addr in nfs4_decode_mp_ds_addr

A flaw was found in the Linux kernel's NFSv4/pNFS implementation. The nfs4decodempdsaddr function, responsible for decoding network address information, does not properly handle zero-length raddr opaque data. A malicious or compromised metadata server can exploit this by providing a zero-length...

kernel: pNFS: Fix use-after-free in pnfs_update_layout()

A flaw was found in the Linux kernel's parallel Network File System pNFS component. An issue in the pnfsupdatelayout function causes a use-after-free vulnerability due to incorrect ordering of memory management operations. This flaw can be triggered when the system attempts to update a pNFS layou...

kernel: NFSv4/pNFS: reject zero-length r_addr in nfs4_decode_mp_ds_addr

A flaw was found in the Linux kernel's NFSv4/pNFS implementation. The nfs4decodempdsaddr function, responsible for decoding network address information, does not properly handle zero-length raddr opaque data. A malicious or compromised metadata server can exploit this by providing a zero-length...

kernel: pNFS: Fix use-after-free in pnfs_update_layout()

A flaw was found in the Linux kernel's parallel Network File System pNFS component. An issue in the pnfsupdatelayout function causes a use-after-free vulnerability due to incorrect ordering of memory management operations. This flaw can be triggered when the system attempts to update a pNFS layou...

kernel: NFSv4/pNFS: reject zero-length r_addr in nfs4_decode_mp_ds_addr

A flaw was found in the Linux kernel's NFSv4/pNFS implementation. The nfs4decodempdsaddr function, responsible for decoding network address information, does not properly handle zero-length raddr opaque data. A malicious or compromised metadata server can exploit this by providing a zero-length...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: NFSv4: Fixed a NULL pointer dereference in pnfsmarkmatchinglsegsreturn. The commit de144ff4234f fixes the issue by changing pnfsreturnlayout to call pnfsmarkmatchinglsegsreturn, with NULL passed as the argument to the...

UBUNTU-CVE-2026-72132

In the Linux kernel, the following vulnerability has been resolved: NFS: Charge unstable writes by request size, not folio size nfsfoliomarkunstable and nfsfolioclearcommit charge and uncharge NRWRITEBACK/WBWRITEBACK by folionrpagesfolio once per request added to or removed from a commit list. Th...

EUVD-2026-58890

In the Linux kernel, the following vulnerability has been resolved: NFS: Charge unstable writes by request size, not folio size nfsfoliomarkunstable and nfsfolioclearcommit charge and uncharge NRWRITEBACK/WBWRITEBACK by folionrpagesfolio once per request added to or removed from a commit list. Th...

CVE-2026-72132

The CVE-2026-72132 issue affects the Linux kernel’s NFS writeback accounting. When a folio is split into multiple requests, the code could erroneously charge or uncharge NR_WRITEBACK/WB_WRITEBACK by the entire folio size for each request, inflating accounting by up to N× and potentially pushing d...

CVE-2026-72132 NFS: Charge unstable writes by request size, not folio size

In the Linux kernel, the following vulnerability has been resolved: NFS: Charge unstable writes by request size, not folio size nfsfoliomarkunstable and nfsfolioclearcommit charge and uncharge NRWRITEBACK/WBWRITEBACK by folionrpagesfolio once per request added to or removed from a commit list. Th...

pNFS: Fix use-after-free in pnfs_update_layout()

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CVE-2026-63800

In the Linux kernel, the following vulnerability has been resolved: pNFS: Fix use-after-free in pnfsupdatelayout When hitting the NFSLAYOUTRETURN branch in pnfsupdatelayout, the code calls pnfspreparetoretrylayoutgetlo. If it succeeds, pnfsputlayouthdrlo is called before tracepnfsupdatelayout,...

CVE-2026-63800 pNFS: Fix use-after-free in pnfs_update_layout()

In the Linux kernel, the following vulnerability has been resolved: pNFS: Fix use-after-free in pnfsupdatelayout When hitting the NFSLAYOUTRETURN branch in pnfsupdatelayout, the code calls pnfspreparetoretrylayoutgetlo. If it succeeds, pnfsputlayouthdrlo is called before tracepnfsupdatelayout,...

CVE-2026-63800 pNFS: Fix use-after-free in pnfs_update_layout()

In the Linux kernel, the following vulnerability has been resolved: pNFS: Fix use-after-free in pnfsupdatelayout When hitting the NFSLAYOUTRETURN branch in pnfsupdatelayout, the code calls pnfspreparetoretrylayoutgetlo. If it succeeds, pnfsputlayouthdrlo is called before tracepnfsupdatelayout,...

CVE-2026-63800

CVE-2026-63800 — Linux kernel (pNFS use-after-free) Affected: kernel code handling pnfs_update_layout() for NFS_LAYOUT_RETURN.Cause: If pnfs_prepare_to_retry_layoutget(lo) succeeds, pnfs_put_layout_hdr(lo) runs before trace_pnfs_update_layout(), while the tracepoint still references the structure...

EUVD-2026-45513

In the Linux kernel, the following vulnerability has been resolved: NFSv4/pNFS: reject zero-length raddr in nfs4decodempdsaddr nfs4decodempdsaddr decodes the rnetid and raddr opaques of a netaddr4 from a GETDEVICEINFO multipath-DS body, then immediately calls strrchrbuf, '.' to locate the port...