CVE-2026-98299

The Linux kernel is vulnerable to a division by zero crash in the tcp_rcvbuf_grow() and tcp_rcv_space_adjust() functions within net/ipv4/tcp_input.c. The root cause is that if net.ipv4.tcp_rmem is configured with arbitrarily small values (e.g., 1), sk->sk_rcvbuf is initialized to 1, causing tp...

EUVD-2026-93284

In the Linux kernel, the following vulnerability has been resolved: tcp: do not let tcprmem be set below 4096 We can hit a division by zero crash in tcprcvbufgrow and tcprcvspaceadjust: divide error: 0000 1 PREEMPT SMP RIP: 0010:tcprcvbufgrow+0x187/0x450 net/ipv4/tcpinput.c:939 ... grow =...