CVE-2026-4408

A flaw was found in Samba. A remote attacker can exploit a misconfiguration in Samba file servers and classic domain controllers that use the "check password script" feature. If this script is configured with the %u substitution character, the client-controlled username is passed without proper...

UBUNTU-CVE-2026-4408

A flaw was found in Samba. A remote attacker can exploit a misconfiguration in Samba file servers and classic domain controllers that use the "check password script" feature. If this script is configured with the %u substitution character, the client-controlled username is passed without proper...

CVE-2026-43379

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in smblazyparentleasebreakclose opinfo pointer obtained via rcudereferencefp-fopinfo is being accessed after rcureadunlock has been called. This creates a race condition where the memory could be freed b...

CVE-2026-43185

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix signededness bug in smbdirectpreparenegotiation smbdirectpreparenegotiation casts an unsigned u32 value from sp-maxrecvsize and req-preferredsendsize to a signed int before computing mintint, .... A maliciously provide...

Linux Distros Unpatched Vulnerability : CVE-2026-31704

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: use checkaddoverflow to prevent u16 DACL size overflow setposixaclentriesdacl and setntacldacl accumulate ACE sizes in u16 variables. When a file has man...

CVE-2026-31718

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in ksmbdclosefd via durable scavenger When a durable file handle survives session disconnect TCP close without SMB2LOGOFF, sessionfdcheck sets fp-conn = NULL to preserve the handle for later reconnection...

CVE-2026-31711

CVE-2026-31711 concerns the Linux kernel ksmbd server where a leak of active_num_conn occurs during transport allocation failure. The issue lets an unauthenticated remote attacker exacerbate memory pressure by holding connections with large RFC1002 lengths, causing the max_connections pool to be ...

EUVD-2026-26515

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate numaces and harden ACE walk in smbinheritdacl smbinheritdacl trusts the on-disk numaces value from the parent directory's DACL xattr and uses it to size a heap allocation: acesbase = kmallocsizeofstruct smbace...

Linux Distros Unpatched Vulnerability : CVE-2026-31538

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: smb: server: make use of smbdirectsocket.recvio.credits.available The logic off managing rec...

D-Link DIR-825 缓冲区错误漏洞

The D-Link DIR-825 is a router produced by D-Link Corporation. The D-Link DIR-825 3.00b32 version has a buffer error vulnerability. This vulnerability stems from the operations of the NMBDprocess function in the sserver.c file of the nmbd component, which may lead to a buffer overflow...

SUSE CVE-2026-31536

In the Linux kernel, the following vulnerability has been resolved: smb: server: let senddone handle a completion without IBSENDSIGNALED With smbdirectsendbatch processing we likely have requests without IBSENDSIGNALED, which will be destroyed in the final request that has IBSENDSIGNALED set. If...

SUSE CVE-2026-31537

In the Linux kernel, the following vulnerability has been resolved: smb: server: make use of smbdirectsocket.sendio.bcredits It turns out that our code will corrupt the stream of reassabled data transfer messages when we trigger an immendiate empty send. In order to fix this we'll have a single...

CVE-2026-31536 smb: server: let send_done handle a completion without IB_SEND_SIGNALED

In the Linux kernel, the following vulnerability has been resolved: smb: server: let senddone handle a completion without IBSENDSIGNALED With smbdirectsendbatch processing we likely have requests without IBSENDSIGNALED, which will be destroyed in the final request that has IBSENDSIGNALED set. If...

ksmbd: fix potencial OOB in get_file_all_info() for compound requests

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CVE-2026-31477

In CVE-2026-31477, the Linux kernel ksmbd component smb2_lock() had three error-handling issues after detaching smb_lock from lock_list: (1) non-UNLOCK path leaks smb_lock and its flock when vfs_lock_file() returns an unexpected error, (2) UNLOCK path leaks on -ENOENT with stale error code, and (...

CVE-2026-31432

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix OOB write in QUERYINFO for compound requests When a compound request such as READ + QUERYINFOSecurity is received, and the first command READ consumes most of the response buffer, ksmbd could write beyond the allocated...

CVE-2026-23427

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in durable v2 replay of active file handles parsedurablehandlecontext unconditionally assigns dhinfo-fp-conn to the current connection when handling a DURABLEREQV2 context with SMB2FLAGSREPLAYOPERATION...

CVE-2026-23364

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Compare MACs in constant time To prevent timing attacks, MAC comparisons need to be constant-time. Replace the memcmp with the correct function, cryptomemneq...

The vulnerability of the `ksmbd_smb2_check_message()` function in the `fs/smb/server/smb2misc.c` module, which is part of the SMB server support in Linux kernel, allows a hacker to cause a service failure.

The vulnerability of the ksmbdsmb2checkmessage function in the fs/smb/server/smb2misc.c module, which is part of the SMB server support in Linux operating systems, is related to insufficient validation of input data. Exploiting this vulnerability could allow an attacker to cause service failures...

CVE-2026-23228 smb: server: fix leak of active_num_conn in ksmbd_tcp_new_connection()

In the Linux kernel, the following vulnerability has been resolved: smb: server: fix leak of activenumconn in ksmbdtcpnewconnection On kthreadrun failure in ksmbdtcpnewconnection, the transport is freed via freetransport, which does not decrement activenumconn, leaking this counter. Replace...