Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: TCP: Proper signedness in the calculation of remaining space in an skb object. Syzkaller reported a bug 1 where sk-skforwardalloc could overflow. When we send data, if an skb object exists at the end of the write queue, the kerne...

kernel: tcp: Correct signedness in skb remaining space calculation

In the Linux kernel, the following vulnerability has been resolved: tcp: Correct signedness in skb remaining space calculation Syzkaller reported a bug 1 where sk-skforwardalloc can overflow. When we send data, if an skb exists at the tail of the write queue, the kernel will attempt to append the...

SUSE CVE-2025-38463

In the Linux kernel, the following vulnerability has been resolved: tcp: Correct signedness in skb remaining space calculation Syzkaller reported a bug 1 where sk-skforwardalloc can overflow. When we send data, if an skb exists at the tail of the write queue, the kernel will attempt to append the...

AZL-65774 CVE-2025-38463 affecting package kernel for versions less than 6.6.104.2-1

In the Linux kernel, the following vulnerability has been resolved: tcp: Correct signedness in skb remaining space calculation Syzkaller reported a bug 1 where sk-skforwardalloc can overflow. When we send data, if an skb exists at the tail of the write queue, the kernel will attempt to append the...

DEBIAN-CVE-2025-38463

In the Linux kernel, the following vulnerability has been resolved: tcp: Correct signedness in skb remaining space calculation Syzkaller reported a bug 1 where sk-skforwardalloc can overflow. When we send data, if an skb exists at the tail of the write queue, the kernel will attempt to append the...

UBUNTU-CVE-2025-38463

In the Linux kernel, the following vulnerability has been resolved: tcp: Correct signedness in skb remaining space calculation Syzkaller reported a bug 1 where sk-skforwardalloc can overflow. When we send data, if an skb exists at the tail of the write queue, the kernel will attempt to append the...

CVE-2025-38463

The CVE-2025-38463 issue is a Linux kernel vulnerability in the TCP skb remaining space calculation. The bug arises from signedness handling when computing copy = size_goal - skb->len, where copy becomes an unsigned result that is then assigned to a 64-bit signed copy, causing copy to stay non...