kernel: af_unix: Fix data races in unix_release_sock/unix_stream_sendmsg

In the Linux kernel, the following vulnerability has been resolved: afunix: Fix data races in unixreleasesock/unixstreamsendmsg A data-race condition has been identified in afunix. In one data path, the write function unixreleasesock atomically writes to sk-skshutdown using WRITEONCE. However, on...

UBUNTU-CVE-2024-44946

In the Linux kernel, the following vulnerability has been resolved: kcm: Serialise kcmsendmsg for the same socket. syzkaller reported UAF in kcmrelease. 0 The scenario is 1. Thread A builds a skb with MSGMORE and sets kcm-seqskb. 2. Thread A resumes building skb from kcm-seqskb but is blocked by...

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,...

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,...

CVE-2021-4442 tcp: add sanity tests to TCP_QUEUE_SEQ

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,...

CVE-2021-4442

CVE-2021-4442 – The Linux kernel TCP stack vulnerability described as: a syzkaller repro could cause RCV_SEQ to be advanced after data restoration in the receive queue, enabling an out-of-order or invalid sequence handling when TCP_QUEUE_SEQ is used on non-empty queues. The connected documents (A...

kernel: ipv4: Fix uninit-value access in __ip_make_skb()

In the Linux kernel, the following vulnerability has been resolved: ipv4: Fix uninit-value access in ipmakeskb KMSAN reported uninit-value access in ipmakeskb 1. ipmakeskb tests HDRINCL to know if the skb has icmphdr. However, HDRINCL can cause a race condition. If calling setsockopt2 with...

CVE-2022-48819

In the Linux kernel, the following vulnerability has been resolved: tcp: take care of mixed splice/sendmsgMSGZEROCOPY case syzbot found that mixing sendpage and sendmsgMSGZEROCOPY calls over the same TCP socket would again trigger the infamous warning in inetsockdestruct WARNONskforwardallocgetsk...

CVE-2022-48819

In the Linux kernel, the following vulnerability has been resolved: tcp: take care of mixed splice/sendmsgMSGZEROCOPY case syzbot found that mixing sendpage and sendmsgMSGZEROCOPY calls over the same TCP socket would again trigger the infamous warning in inetsockdestruct WARNONskforwardallocgetsk...

CVE-2022-48819

In the Linux kernel, the following vulnerability has been resolved: tcp: take care of mixed splice/sendmsgMSGZEROCOPY case syzbot found that mixing sendpage and sendmsgMSGZEROCOPY calls over the same TCP socket would again trigger the infamous warning in inetsockdestruct WARNONskforwardallocgetsk...

CVE-2022-48819

Summary: CVE-2022-48819 affects the Linux kernel TCP path. When mixing sendpage() data and MSG_ZEROCOPY via the same socket, a warning in inet_sock_destruct() (sk_forward_alloc_get(sk)) could be triggered, due to the sendpage() path being forgotten in zerocopy handling and the need to keep zeroco...

CVE-2022-48819 tcp: take care of mixed splice()/sendmsg(MSG_ZEROCOPY) case

In the Linux kernel, the following vulnerability has been resolved: tcp: take care of mixed splice/sendmsgMSGZEROCOPY case syzbot found that mixing sendpage and sendmsgMSGZEROCOPY calls over the same TCP socket would again trigger the infamous warning in inetsockdestruct WARNONskforwardallocgetsk...

CVE-2022-48819

In the Linux kernel, the following vulnerability has been resolved: tcp: take care of mixed splice/sendmsgMSGZEROCOPY case syzbot found that mixing sendpage and sendmsgMSGZEROCOPY calls over the same TCP socket would again trigger the infamous warning in inetsockdestruct WARNONskforwardallocgetsk...

CVE-2022-48819 tcp: take care of mixed splice()/sendmsg(MSG_ZEROCOPY) case

In the Linux kernel, the following vulnerability has been resolved: tcp: take care of mixed splice/sendmsgMSGZEROCOPY case syzbot found that mixing sendpage and sendmsgMSGZEROCOPY calls over the same TCP socket would again trigger the infamous warning in inetsockdestruct WARNONskforwardallocgetsk...

UBUNTU-CVE-2024-38596

In the Linux kernel, the following vulnerability has been resolved: afunix: Fix data races in unixreleasesock/unixstreamsendmsg A data-race condition has been identified in afunix. In one data path, the write function unixreleasesock atomically writes to sk-skshutdown using WRITEONCE. However, on...

Linux kernel security vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a data contention issue in afunix unixreleasesock/unixstreamsendmsg...

AZL-56207 CVE-2024-36927 affecting package kernel 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved: ipv4: Fix uninit-value access in ipmakeskb KMSAN reported uninit-value access in ipmakeskb 1. ipmakeskb tests HDRINCL to know if the skb has icmphdr. However, HDRINCL can cause a race condition. If calling setsockopt2 with...

UBUNTU-CVE-2024-36927

In the Linux kernel, the following vulnerability has been resolved: ipv4: Fix uninit-value access in ipmakeskb KMSAN reported uninit-value access in ipmakeskb 1. ipmakeskb tests HDRINCL to know if the skb has icmphdr. However, HDRINCL can cause a race condition. If calling setsockopt2 with...

SUSE CVE-2021-47544

In the Linux kernel, the following vulnerability has been resolved: tcp: fix page frag corruption on page fault Steffen reported a TCP stream corruption for HTTP requests served by the apache web-server using a cifs mount-point and memory mapping the relevant file. The root cause is quite similar...

SUSE CVE-2021-47457

In the Linux kernel, the following vulnerability has been resolved: can: isotp: isotpsendmsg: add result check for waiteventinterruptible Using waiteventinterruptible to wait for complete transmission, but do not check the result of waiteventinterruptible which can be interrupted. It will result ...