smb: client: avoid double-free in smbd_free_send_io() after smbd_send_batch_flush()

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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...

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...

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...

EUVD-2026-25502

In the Linux kernel, the following vulnerability has been resolved: smb: client: avoid double-free in smbdfreesendio after smbdsendbatchflush smbdsendbatchflush already calls smbdfreesendio, so we should not call it again after smbdpostsend moved it to the batch list...

CVE-2026-31609

In the Linux kernel, the following vulnerability has been resolved: smb: client: avoid double-free in smbdfreesendio after smbdsendbatchflush smbdsendbatchflush already calls smbdfreesendio, so we should not call it again after smbdpostsend moved it to the batch list...

EUVD-2026-25429

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...

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...

CVE-2026-31534

This CVE ID has been rejected or withdrawn by its CVE Numbering Authority...

CVE-2026-31534

CVE-2026-31534 affects the Linux kernel SMB client logic. In smbdirect_send_batch processing, requests may exist without the IB_SEND_SIGNALED flag and could be destroyed by the final request that carries IB_SEND_SIGNALED. If the connection is broken, all outstanding requests are signaled even wit...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the smbdirectsendbatch process. In this process, requests may not be signaled with IBSENDSIGNALED...