SUSE-SU-2025:21180-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues The following security issues were fixed: - CVE-2025-21816: hrtimers: Force migrate away hrtimers queued after bsc1238472. - CVE-2025-38653: proc: use the same treatment to check proclseek as ones for procreaditer...

CVE-2025-39950

In the Linux kernel, the following vulnerability has been resolved: net/tcp: Fix a NULL pointer dereference when using TCP-AO with TCPREPAIR A NULL pointer dereference can occur in tcpaofinishconnect during a connect system call on a socket with a TCP-AO key added and TCPREPAIR enabled. The...

UBUNTU-CVE-2025-39950

In the Linux kernel, the following vulnerability has been resolved: net/tcp: Fix a NULL pointer dereference when using TCP-AO with TCPREPAIR A NULL pointer dereference can occur in tcpaofinishconnect during a connect system call on a socket with a TCP-AO key added and TCPREPAIR enabled. The...

CVE-2025-39950

CVE-2025-39950 pertains to the Linux kernel: a NULL pointer dereference can occur in net/tcp when TCP-AO is used with TCP_REPAIR during connect(), due to dereferencing skb without null-check in tcp_ao_finish_connect(). The vulnerability affects code paths where a TCP-AO key is present and TCP_REP...

CVE-2025-39950 net/tcp: Fix a NULL pointer dereference when using TCP-AO with TCP_REPAIR

In the Linux kernel, the following vulnerability has been resolved: net/tcp: Fix a NULL pointer dereference when using TCP-AO with TCPREPAIR A NULL pointer dereference can occur in tcpaofinishconnect during a connect system call on a socket with a TCP-AO key added and TCPREPAIR enabled. The...

CVE-2025-39950 net/tcp: Fix a NULL pointer dereference when using TCP-AO with TCP_REPAIR

In the Linux kernel, the following vulnerability has been resolved: net/tcp: Fix a NULL pointer dereference when using TCP-AO with TCPREPAIR A NULL pointer dereference can occur in tcpaofinishconnect during a connect system call on a socket with a TCP-AO key added and TCPREPAIR enabled. The...

PT-2025-40646

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel related to a NULL pointer dereference within the tcp ao finish connect function when TCP-AO is used in conjunction with TCP REPAIR. This issue can occur...

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...

SUSE CVE-2021-4442

In the Linux kernel, the following vulnerability has been resolved: tcp: add sanity tests to TCPQUEUESEQ Qingyu Li reported a syzkaller bug where the repro changes RCV SEQ after restoring data in the receive queue. mprotect0x4aa000, 12288, PROTREAD = 0 mmap0x1ffff000, 4096, PROTNONE,...