The vulnerability of the oplock.c component in the Linux operating system’s kernel allows a hacker to induce a service failure.

The vulnerability of the oplock.c component in the Linux operating system’s kernel is related to improper memory release before deleting the last reference. Exploiting this vulnerability can allow an attacker to cause a service failure...

CVE-2025-57632

libsmb2 6.2+ is vulnerable to Buffer Overflow. When processing SMB2 chained PDUs NextCommand, libsmb2 repeatedly calls smb2addiovector to append to a fixed-size iovec array without checking the upper bound of v-niov SMB2MAXVECTORS=256. An attacker can craft responses with many chained PDUs to...

DEBIAN-CVE-2025-57632

libsmb2 6.2+ is vulnerable to Buffer Overflow. When processing SMB2 chained PDUs NextCommand, libsmb2 repeatedly calls smb2addiovector to append to a fixed-size iovec array without checking the upper bound of v-niov SMB2MAXVECTORS=256. An attacker can craft responses with many chained PDUs to...

CVE-2025-57632

libsmb2 6.2+ is vulnerable to Buffer Overflow. When processing SMB2 chained PDUs NextCommand, libsmb2 repeatedly calls smb2addiovector to append to a fixed-size iovec array without checking the upper bound of v-niov SMB2MAXVECTORS=256. An attacker can craft responses with many chained PDUs to...

UBUNTU-CVE-2025-57632

libsmb2 6.2+ is vulnerable to Buffer Overflow. When processing SMB2 chained PDUs NextCommand, libsmb2 repeatedly calls smb2addiovector to append to a fixed-size iovec array without checking the upper bound of v-niov SMB2MAXVECTORS=256. An attacker can craft responses with many chained PDUs to...

PT-2025-39452

Name of the Vulnerable Software and Affected Versions libsmb2 versions 6.2 and later Description The software contains a flaw due to improper handling of SMB2 chained PDUs NextCommand. Specifically, the smb2 add iovector function is repeatedly called to append to a fixed-size iovec array without...

CVE-2025-57632

libsmb2 6.2+ is vulnerable to Buffer Overflow. When processing SMB2 chained PDUs NextCommand, libsmb2 repeatedly calls smb2addiovector to append to a fixed-size iovec array without checking the upper bound of v-niov SMB2MAXVECTORS=256. An attacker can craft responses with many chained PDUs to...

CVE-2025-57632

libsmb2 6.2+ is vulnerable to Buffer Overflow. When processing SMB2 chained PDUs NextCommand, libsmb2 repeatedly calls smb2addiovector to append to a fixed-size iovec array without checking the upper bound of v-niov SMB2MAXVECTORS=256. An attacker can craft responses with many chained PDUs to...

smb: client: fix use-after-free in cifs_oplock_break

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ksmbd: fix potential use-after-free in oplock/lease break ack

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smb: client: fix potential UAF in smb2_is_valid_oplock_break()

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smb: client: fix potential UAF in is_valid_oplock_break()

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Linux Distros Unpatched Vulnerability : CVE-2025-38527

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - smb: client: fix use-after-free in cifsoplockbreak A race condition can occur in cifsoplockbreak leading to a use-after-free of the cinode structure when...

CVE-2023-4515

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate command request size In commit 2b9b8f3b68ed "ksmbd: validate command payload size", except for SMB2OPLOCKBREAKHE command, the request size of other commands is not checked, it's not expected. Fix it by add check f...

CVE-2025-38527

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix use-after-free in cifsoplockbreak A race condition can occur in cifsoplockbreak leading to a use-after-free of the cinode structure when unmounting: cifsoplockbreak cifsFileInfoputcfile cifsFileInfoputfinal...

SUSE CVE-2025-38527

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix use-after-free in cifsoplockbreak A race condition can occur in cifsoplockbreak leading to a use-after-free of the cinode structure when unmounting: cifsoplockbreak cifsFileInfoputcfile cifsFileInfoputfinal...

DEBIAN-CVE-2023-4515

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate command request size In commit 2b9b8f3b68ed "ksmbd: validate command payload size", except for SMB2OPLOCKBREAKHE command, the request size of other commands is not checked, it's not expected. Fix it by add check f...

CVE-2023-4515

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate command request size In commit 2b9b8f3b68ed "ksmbd: validate command payload size", except for SMB2OPLOCKBREAKHE command, the request size of other commands is not checked, it's not expected. Fix it by add check f...

UBUNTU-CVE-2023-4515

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate command request size In commit 2b9b8f3b68ed "ksmbd: validate command payload size", except for SMB2OPLOCKBREAKHE command, the request size of other commands is not checked, it's not expected. Fix it by add check f...

CVE-2023-4515 ksmbd: validate command request size

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate command request size In commit 2b9b8f3b68ed "ksmbd: validate command payload size", except for SMB2OPLOCKBREAKHE command, the request size of other commands is not checked, it's not expected. Fix it by add check f...