CVE-2026-31609 smb: client: avoid double-free in smbd_free_send_io() after smbd_send_batch_flush()

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-2026-31608 smb: server: avoid double-free in smb_direct_free_sendmsg after smb_direct_flush_send_list()

In the Linux kernel, the following vulnerability has been resolved: smb: server: avoid double-free in smbdirectfreesendmsg after smbdirectflushsendlist smbdirectflushsendlist already calls smbdirectfreesendmsg, so we should not call it again after postsendmsg 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...

CVE-2026-31608

CVE-2026-31608 affects the Linux kernel SMB server. The issue is a double-free in smb_direct_free_sendmsg when invoked after smb_direct_flush_send_list(); smb_direct_flush_send_list() already calls smb_direct_free_sendmsg(), so a second call after post_sendmsg() is incorrect. The fix moves the ca...

CVE-2026-31609 smb: client: avoid double-free in smbd_free_send_io() after smbd_send_batch_flush()

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-2026-31608 smb: server: avoid double-free in smb_direct_free_sendmsg after smb_direct_flush_send_list()

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

CVE-2026-31608

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

CVE-2026-31539

In the Linux kernel, the following vulnerability has been resolved: smb: smbdirect: introduce smbdirectsocket.recvio.credits.available The logic off managing recv credits by counting posted recvio and granted credits is racy. That's because the peer might already consumed a credit, but between...

CVE-2026-31539

In the Linux kernel, the following vulnerability has been resolved: smb: smbdirect: introduce smbdirectsocket.recvio.credits.available The logic off managing recv credits by counting posted recvio and granted credits is racy. That's because the peer might already consumed a credit, but between...

CVE-2026-31539 smb: smbdirect: introduce smbdirect_socket.recv_io.credits.available

In the Linux kernel, the following vulnerability has been resolved: smb: smbdirect: introduce smbdirectsocket.recvio.credits.available The logic off managing recv credits by counting posted recvio and granted credits is racy. That's because the peer might already consumed a credit, but between...

CVE-2026-31539

The CVE-2026-31539 entry describes a race condition in the Linux kernel smbdirect module where credits for receive buffers can be granted to a peer that has already consumed them. This could enable resource exhaustion and a DoS condition. The root cause is improper counting of posted recv_io cred...

EUVD-2026-25431

In the Linux kernel, the following vulnerability has been resolved: smb: server: make use of smbdirectsocket.recvio.credits.available The logic off managing recv credits by counting posted recvio and granted credits is racy. That's because the peer might already consumed a credit, but between...

CVE-2026-31538 smb: server: make use of smbdirect_socket.recv_io.credits.available

In the Linux kernel, the following vulnerability has been resolved: smb: server: make use of smbdirectsocket.recvio.credits.available The logic off managing recv credits by counting posted recvio and granted credits is racy. That's because the peer might already consumed a credit, but between...

CVE-2026-31538

In the Linux kernel, the following vulnerability has been resolved: smb: server: make use of smbdirectsocket.recvio.credits.available The logic off managing recv credits by counting posted recvio and granted credits is racy. That's because the peer might already consumed a credit, but between...

CVE-2026-31538 smb: server: make use of smbdirect_socket.recv_io.credits.available

In the Linux kernel, the following vulnerability has been resolved: smb: server: make use of smbdirectsocket.recvio.credits.available The logic off managing recv credits by counting posted recvio and granted credits is racy. That's because the peer might already consumed a credit, but between...

CVE-2026-31538

In the Linux kernel, the following vulnerability has been resolved: smb: server: make use of smbdirectsocket.recvio.credits.available The logic off managing recv credits by counting posted recvio and granted credits is racy. That's because the peer might already consumed a credit, but between...

CVE-2026-31537 smb: server: make use of smbdirect_socket.send_io.bcredits

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-2026-31537 smb: server: make use of smbdirect_socket.send_io.bcredits

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

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-2026-31537

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...