CVE-2026-63828

In the Linux kernel, the following vulnerability has been resolved: apparmor: mediate the implicit connect of TCP fast open sendmsg sendmsg/sendto with MSGFASTOPEN is a combination of connect2 and write2: it opens the connection in the SYN. apparmorsocketsendmsg only checks AAMAYSEND, so a profil...

EUVD-2026-45494

In the Linux kernel, the following vulnerability has been resolved: apparmor: mediate the implicit connect of TCP fast open sendmsg sendmsg/sendto with MSGFASTOPEN is a combination of connect2 and write2: it opens the connection in the SYN. apparmorsocketsendmsg only checks AAMAYSEND, so a profil...

CVE-2026-63828

In the Linux kernel, the following vulnerability has been resolved: apparmor: mediate the implicit connect of TCP fast open sendmsg sendmsg/sendto with MSGFASTOPEN is a combination of connect2 and write2: it opens the connection in the SYN. apparmorsocketsendmsg only checks AAMAYSEND, so a profil...

PT-2026-61144

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in AppArmor where the sendmsg and sendto functions, when used with the MSG FASTOPEN flag, combine the actions of connect2 and write2 to open a connection during the SYN...

RockyLinux 10 : kernel (RLSA-2026:36956)

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:36956 advisory. kernel: net/sched: ets: Always remove class from active list before deleting in etsqdiscchange CVE-2025-71066 kernel: sctp: revalidate list cursor afte...

The vulnerability of the sendmsg() function in the Linux operating system’s kernel allows a hacker to trigger a service failure.

The vulnerability of the sendmsg function in the Linux operating system’s kernel is related to the assignment of a null pointer. Exploiting this vulnerability could allow an attacker to trigger a service failure...

UBUNTU-CVE-2026-52935

In the Linux kernel, the following vulnerability has been resolved: xfrm: espintcp: do not reuse an in-progress partial send espintcp keeps a single in-flight transmit in ctx-partial. Before building a new skmsg, espintcpsendmsg first tries to flush that state through espintcppushmsgs. For blocki...

kernel: can: isotp: fix tx.buf use-after-free in isotp_sendmsg()

A flaw was found in the Linux kernel's Controller Area Network CAN ISO-TP isotp module. This vulnerability, known as a use-after-free, occurs when the system attempts to free a memory region while it is still being used. A local attacker could trigger this condition by sending a signal that...

CVE-2026-46227

In the Linux kernel, the following vulnerability has been resolved: sctp: revalidate list cursor after sctpsendmsgtoasoc in SCTPSENDALL The SCTPSENDALL path in sctpsendmsg iterates ep-asocs with listforeachentrysafe, which caches the next entry in @tmp before the loop body runs. The body calls...

CVE-2026-43494 net/rds: reset op_nents when zerocopy page pin fails

In the Linux kernel, the following vulnerability has been resolved: net/rds: reset opnents when zerocopy page pin fails When iovitergetpages2 fails in rdsmessagezcopyfromuser, the pinned pages are released with putpage, and rm-data.opmmpznotifier is cleared. But we fail to properly clear...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerabilities have been resolved: ipv4, ipv6: Fixed the handling of transhdrlen in ip,6appenddata. Including transhdrlen in the packet length is a problem when the packet is partially filled e.g., a sendMSGMORE operation occurred previously when appending to a...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: bpf, sockmap: Fixed a memory leak in tcpbpfsendmsg when skmsg is full. If tcpbpfsendmsg is running while skmsg is full, and skmsgalloc returns an -ENOMEM error, tcpbpfsendmsg will enter a waitformemory state. If part of the...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: ipv6: Fixed an issue of signed integer overflow in l2tpip6sendmsg. When len = INTMAX - transhdrlen, the value of ulen = len + transhdrlen will cause an overflow. To address this issue, we can follow the approach used by udpv6 and...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: llc: Makes llcuisendmsg more robust against changes related to bonding. syzbot was able to exploit llcuisendmsg, allocating a skb without sufficient headroom, and then attempting to append 14 bytes of Ethernet header information...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: kcm: Fixed error handling for SOCKDGRAM in kcmsendmsg. Syzkaller identified a memory leak in kcmsendmsg, and the commit c821a88bd720 "kcm: Fix memory leak in the error path of kcmsendmsg" suppressed this issue by updating...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: - rxrpc: Fixed the locking mechanism in rxrpc’s sendmsg function. - Three bugs were fixed in the implementation of rxrpc’s sendmsg function: 1 The rxrpcnewclientcall function should release the socket lock when returning an...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerabilities have been resolved: IB/hfi1: Fixed the off-by-one error in sdma.h’s tx-numdescs. Unfortunately, the commit fd8958efe877 introduced another error, causing the descp array to overflow. This leads to further crashes that can be easily reproduced usi...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-021640)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-021640 advisory. 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...

Exploit for Write-what-where Condition in Linux Linux_Kernel

Dirty Frag - kernel Linux critical Vulnerability- CVE-2026-432...

SUSE CVE-2026-43016

In the Linux kernel, the following vulnerability has been resolved: bpf: sockmap: Fix use-after-free of sk-sksocket in skpsockverdictdataready. syzbot reported use-after-free of AFUNIX socket's sk-sksocket in skpsockverdictdataready. 0 In unixstreamsendmsg, the peer socket's -skdataready is calle...