GO-2026-5051 Out-of-bounds read and panic in ReadDir in github.com/cloudsoda/go-smb2 and github.com/hirochachacha/go-smb2

ReadDir and ReadDirPlus parse the QUERYDIRECTORY SMB response by advancing through entries using the server-supplied NextEntryOffset field. The pre-fix code does not bound next against the remaining buffer before re-slicing, and the entry decoder IsInvalid check performs length arithmetic in int...

CVE-2026-64384

A flaw was found in the Linux kernel's Server Message Block SMB client. This vulnerability occurs due to a double-free error when handling change notify replies. If a response attempt returns a replayable error and frees its buffer, and then SMB2notifyinit fails, the same buffer can be freed agai...

CVE-2026-64437

A flaw was found in the ksmbd component of the Linux kernel. This vulnerability allows an authenticated client using the Server Message Block SMB protocol to trigger a use-after-free error. By sending specific close and cancel requests, an attacker can cause the kernel to crash, leading to a deni...

CVE-2026-64509

A flaw was found in the Linux kernel's rust: block module. This vulnerability occurs in the GenDisk cleanup paths, where temporary disk and request queue resources may not be properly released during error handling or after unregistration. This can lead to a resource leak, potentially causing...

CVE-2026-64393

A flaw was found in the Linux kernel's ksmbd component. This vulnerability allows a local attacker to escalate privileges by manipulating Server Message Block SMB2 SETINFO operations. The system incorrectly uses the ksmbd worker's credentials instead of the original user's credentials when...

CVE-2026-64398

A flaw was found in the Linux kernel's ksmbd component. An authenticated Server Message Block SMB client with only FILEWRITEATTRIBUTES permission can bypass a security check in the FSCTLSETZERODATA function. This allows the client to zero out file data, leading to data destruction and a denial of...

CVE-2026-64397

A flaw was found in the Linux kernel's ksmbd kernel Server Message Block daemon component. Concurrent directory query requests using the same file handle can lead to a stack use-after-free vulnerability. This occurs because smb2querydir stores a pointer to stack-allocated data that can be...

UBUNTU-CVE-2026-64522

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix eswitch mode block underflow on IPsec acquire SA mlx5exfrmaddstate handles acquire-flow temporary SAs by allocating software state and skipping hardware offload setup. That path jumps to the common success label...

PT-2026-65221

In the Linux kernel, the following vulnerability has been resolved: drm/edid: fix OOB read in drm parse tiled block drm parse tiled block casts the DisplayID block to a struct displayid tiled block and reads the full fixed layout up to tile-topology id7 without checking block-num bytes. The...

PT-2026-65132

Name of the Vulnerable Software and Affected Versions macOS Sequoia versions prior to 15.7.8 macOS Sonoma versions prior to 14.8.8 macOS Tahoe versions prior to 26.6 Description Connecting to a malicious SMB server may lead to unexpected system termination due to improper memory handling...

UBUNTU-CVE-2026-64232

In the Linux kernel, the following vulnerability has been resolved: block: recompute nrintegritysegments in blkinsertclonedrequest blkinsertclonedrequest already recomputes nrphyssegments against the bottom queue, because "the queue settings related to segment counting may differ from the origina...

smb: client: fix query_info() replay double-free

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udf: validate free block extents against the partition length

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smb: client: Fix next buffer leak in receive_encrypted_standard()

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smb: client: fix double-free in SMB2_open() replay

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SUSE CVE-2026-64326

In the Linux kernel, the following vulnerability has been resolved: block: skip syncblockdev on surprise removal in bdevmarkdead bdevmarkdead's @surprise == true means the device is already gone. The filesystem callback fsbdevmarkdead honours this and skips syncfilesystem, but the bare block devi...

SUSE CVE-2026-64380

In the Linux kernel, the following vulnerability has been resolved: smb: client: harden POSIX SID length parsing posixinfosidsize reads sid1 to obtain the subauthority count, but its existing boundary check still accepts buffers with only one remaining byte. Require two bytes before reading sid1 ...

SUSE CVE-2026-64381

In the Linux kernel, the following vulnerability has been resolved: smb: client: Fix next buffer leak in receiveencryptedstandard receiveencryptedstandard allocates nextbuffer before checking whether the number of compound PDUs already reached MAXCOMPOUND. If the limit check fails, the function...

SUSE CVE-2026-64382

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix double-free in SMB2open replay A response-bearing attempt can return a replayable error and free its response buffer. If SMB2openinit fails before the next send, cleanup retains the previous buffer type and frees...

SUSE CVE-2026-64386

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix queryinfo replay double-free A response-bearing attempt can return a replayable error and free its response buffer. If SMB2queryinfoinit fails before the next send, cleanup retains the previous buffer type and...