CVE-2026-64139

In the Linux kernel ksmbd subsystem, commit 299f962c0b02 added check_add_overflow() guards that issue break statements in set_posix_acl_entries_dacl(), bypassing kfree(sid) calls and leaking struct smb_sid allocations per loop iteration. A crafted file with many POSIX ACL entries triggers repeate...

CVE-2026-64139

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix SID memory leak in setposixaclentriesdacl on overflow Commit 299f962c0b02 "ksmbd: use checkaddoverflow to prevent u16 DACL size overflow" added checkaddoverflow guards that break out of the ACE-building loops in...

CVE-2026-64139 ksmbd: fix SID memory leak in set_posix_acl_entries_dacl() on overflow

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix SID memory leak in setposixaclentriesdacl on overflow Commit 299f962c0b02 "ksmbd: use checkaddoverflow to prevent u16 DACL size overflow" added checkaddoverflow guards that break out of the ACE-building loops in...

CVE-2026-53397

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix posixacl leak on SETACL decode failure nfsaclsvcdecodesetaclargs and nfs3svcdecodesetaclargs each call nfsstreamdecodeacl twice, first for NFSACL and then for NFSDFACL. Each successful call transfers ownership of a...

CVE-2026-53396 nfsd: fix posix_acl leak and ignored error in nfsd4_create_file

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix posixacl leak and ignored error in nfsd4createfile nfsd4createfile has two bugs in its ACL handling: The return value of nfsd4acltoattr is silently discarded. When the NFSv4-to-POSIX ACL conversion fails e.g., -EINVAL f...

EUVD-2026-45518

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix posixacl leak and ignored error in nfsd4createfile nfsd4createfile has two bugs in its ACL handling: The return value of nfsd4acltoattr is silently discarded. When the NFSv4-to-POSIX ACL conversion fails e.g., -EINVAL f...

CVE-2026-53396 nfsd: fix posix_acl leak and ignored error in nfsd4_create_file

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix posixacl leak and ignored error in nfsd4createfile nfsd4createfile has two bugs in its ACL handling: The return value of nfsd4acltoattr is silently discarded. When the NFSv4-to-POSIX ACL conversion fails e.g., -EINVAL f...

CVE-2026-53396

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix posixacl leak and ignored error in nfsd4createfile nfsd4createfile has two bugs in its ACL handling: The return value of nfsd4acltoattr is silently discarded. When the NFSv4-to-POSIX ACL conversion fails e.g., -EINVAL f...

CVE-2026-53397 nfsd: fix posix_acl leak on SETACL decode failure

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix posixacl leak on SETACL decode failure nfsaclsvcdecodesetaclargs and nfs3svcdecodesetaclargs each call nfsstreamdecodeacl twice, first for NFSACL and then for NFSDFACL. Each successful call transfers ownership of a...

CVE-2026-53397

The CVE-2026-53397 entry describes a Linux kernel leakage with posix_acl objects during SETACL decode in NFS code paths. Specifically, nfsaclsvc_decode_setaclargs() and nfs3svc_decode_setaclargs() call nfs_stream_decode_acl() for NFS_ACL and NFS_DFACL; if the first succeeds and the second fails, ...

CVE-2026-53396

CVE-2026-53396 (Linux kernel, NFSd) : The issue arises in nfsd4_create_file() where two ACL-handling bugs allow potential ACL leakage and incorrect behavior on CREATE. Specifically, the return value of nfsd4_acl_to_attr() is discarded, so failed ACL conversions (e.g., -EINVAL for unsupported ACE ...

CVE-2026-53397

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix posixacl leak on SETACL decode failure nfsaclsvcdecodesetaclargs and nfs3svcdecodesetaclargs each call nfsstreamdecodeacl twice, first for NFSACL and then for NFSDFACL. Each successful call transfers ownership of a...

CVE-2026-53395

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix dead ACL conflict guard in nfsd4create nfsd4create steals create-crdpacl/crpacl into the local nfsdattrs via the designated initializer, then immediately sets the source pointers to NULL. The subsequent conflict guard...

CVE-2026-53395 nfsd: fix dead ACL conflict guard in nfsd4_create

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix dead ACL conflict guard in nfsd4create nfsd4create steals create-crdpacl/crpacl into the local nfsdattrs via the designated initializer, then immediately sets the source pointers to NULL. The subsequent conflict guard...

CVE-2026-53395

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix dead ACL conflict guard in nfsd4create nfsd4create steals create-crdpacl/crpacl into the local nfsdattrs via the designated initializer, then immediately sets the source pointers to NULL. The subsequent conflict guard...

CVE-2026-53395 nfsd: fix dead ACL conflict guard in nfsd4_create

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix dead ACL conflict guard in nfsd4create nfsd4create steals create-crdpacl/crpacl into the local nfsdattrs via the designated initializer, then immediately sets the source pointers to NULL. The subsequent conflict guard...

CVE-2026-53395

Summary (concrete details from provided documents): CVE-2026-53395 affects the Linux kernel NFS server (nfsd). In nfsd4_create, the code steals create->cr_dpacl/cr_pacl into a local nfsd_attrs via a designated initializer and then nils the source pointers. The subsequent conflict guard tests t...

Linux Distros Unpatched Vulnerability : CVE-2026-53397

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - nfsd: fix posixacl leak on SETACL decode failure nfsaclsvcdecodesetaclargs and nfs3svcdecodesetaclargs each call nfsstreamdecodeacl twice, first for NFSACL and...

PT-2026-61102

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A memory leak occurs in the nfsd component when a SETACL decode failure happens. The functions nfsaclsvc decode setaclargs and nfs3svc decode setaclargs call nfs stream decode acl twice ...

PT-2026-61456

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A memory leak exists in the ksmbd module within the set posix acl entries dacl function. The issue occurs when the system detects a DACL Discretionary Access Control List size overflow...