CVE-2025-68786

CVE-2025-68786 affects the Linux kernel ksmbd code path. When i_size equals the requested size (including 0), the prior check_lock_range call used size-1 and could underflow, which is mitigated by skipping the equal-size case. The issue is resolved in upstream kernel 6.6.120, and Mageia advisorie...

CVE-2025-68786 ksmbd: skip lock-range check on equal size to avoid size==0 underflow

In the Linux kernel, the following vulnerability has been resolved: ksmbd: skip lock-range check on equal size to avoid size==0 underflow When size equals the current isize including 0, the code used to call checklockrangefilp, isize, size - 1, WRITE, which computes size - 1 and can underflow for...

CVE-2025-68786 ksmbd: skip lock-range check on equal size to avoid size==0 underflow

In the Linux kernel, the following vulnerability has been resolved: ksmbd: skip lock-range check on equal size to avoid size==0 underflow When size equals the current isize including 0, the code used to call checklockrangefilp, isize, size - 1, WRITE, which computes size - 1 and can underflow for...

CVE-2025-68786

In the Linux kernel, the following vulnerability has been resolved: ksmbd: skip lock-range check on equal size to avoid size==0 underflow When size equals the current isize including 0, the code used to call checklockrangefilp, isize, size - 1, WRITE, which computes size - 1 and can underflow for...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ksmbd: transportipc: Validate the payload size before reading the handle. The handleresponse function dereferences the payload as a 4-byte handle without verifying that the declared payload size is at least 4 bytes. A malformed o...

Linux Distros Unpatched Vulnerability : CVE-2025-68817

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in ksmbdtreeconnectput under concurrency Under high concurrency, A...

Linux Distros Unpatched Vulnerability : CVE-2025-68806

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: fix buffer validation by including null terminator size in EA length The smb2setea function, which handles Extended Attributes EA, was performing buffer...

Linux Distros Unpatched Vulnerability : CVE-2025-68786

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: skip lock-range check on equal size to avoid size==0 underflow When size equals the current isize including 0, the code used to call checklockrangefilp,...

Linux Distros Unpatched Vulnerability : CVE-2025-68809

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: vfs: fix race on mflags in vfscache ksmbd maintains delete-on-close and pending-delete state in ksmbdinode-mflags. In vfscache.c this field is accessed...

PT-2026-2541

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel’s ksmbd component has an issue related to inconsistent locking when accessing the m flags field within the vfs cache. Specifically, some code paths read and modify m fla...

K000159062: Linux kernel vulnerability CVE-2024-56627

Security Advisory Description In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix Out-of-Bounds Read in ksmbdvfsstreamread An offset from client could be a negative value, it could lead to an out-of-bounds read from the streambuf. Note that this issue is coming when...

K000159061: Linux kernel vulnerability CVE-2024-56626

Security Advisory Description In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix Out-of-Bounds Write in ksmbdvfsstreamwrite. An offset from client could be a negative value, it could allows to write data outside the bounds of the allocated buffer. Note that this issue ...

Linux Distros Unpatched Vulnerability : CVE-2023-54203

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: fix slab-out-of-bounds in initsmb2rsphdr When smb1 mount fails, KASAN detect slab-out-of-bounds in initsmb2rsphdr like the following one. For smb1...

Linux Distros Unpatched Vulnerability : CVE-2023-54162

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: fix possible memory leak in smb2lock argv needs to be free when setupasyncwork fails or when the current process is woken up. CVE-2023-54162 Note that...

PT-2026-20454

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A memory leak exists in the SMB server component of the Linux kernel, specifically within the ksmbd tcp new connection function. When kthread run fails during the creation of a new...

PT-2026-20452

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel’s ksmbd module contains a synchronization issue within the ksmbd chann list xarray. This lack of synchronization can lead to a use-after-free condition in multi-channel...

SUSE CVE-2023-54162

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix possible memory leak in smb2lock argv needs to be free when setupasyncwork fails or when the current process is woken up...

SUSE CVE-2023-54203

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix slab-out-of-bounds in initsmb2rsphdr When smb1 mount fails, KASAN detect slab-out-of-bounds in initsmb2rsphdr like the following one. For smb1 negotiate56bytes , initsmb2rsphdr for smb2 is called. The issue occurs whil...

EUVD-2023-60438

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix slab-out-of-bounds in initsmb2rsphdr When smb1 mount fails, KASAN detect slab-out-of-bounds in initsmb2rsphdr like the following one. For smb1 negotiate56bytes , initsmb2rsphdr for smb2 is called. The issue occurs whil...

CVE-2023-54250

CVE-2023-54250 is about ksmbd in the Linux kernel avoiding an out-of-bounds access in decode_preauth_ctxt(). The issue arises because pneg_ctxt->HashAlgorithms is accessed within the SMB request boundary, while deassemble_neg_contexts() only checks the eight-byte SMB2_neg_context header plus t...