CVE-2026-46027

A flaw was found in the Linux kernel's net/smc component. A remote attacker could exploit this by sending a Connection Less Connection CLC decline message during an early handshake stage. This causes the system to attempt to update link-group level synchronization state before it is properly...

CVE-2026-46027

In the Linux kernel, the following vulnerability has been resolved: net/smc: avoid early lgr access in smcclcwaitmsg A CLC decline can be received while the handshake is still in an early stage, before the connection has been associated with a link group. The decline handling in smcclcwaitmsg...

Linux Distros Unpatched Vulnerability : CVE-2026-46027

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net/smc: avoid early lgr access in smcclcwaitmsg A CLC decline can be received while the handshake is still in an early stage, before the connection has been...

Astra Linux - уязвимость в linux-5.10, linux-5.15

In the Linux kernel, the following vulnerabilities have been resolved: net/smc: fixed a deadlock caused by canceldelayedworksyn The following LOCKDEP was detected: Workqueue: events smclgrfreework smc WARNING: a circular locking dependency was detected...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: net/smc: fixed the connection leak issue. There is a potential leak issue under the following execution sequence: smcrelease, smcconnectwork if sk-skstate == SMCINIT sendclcconfirim tcpabort; ... sk-skstate = SMCACTIVE...

Astra Linux - уязвимость в linux-5.10, linux-5.15, linux

In the Linux kernel, the following vulnerability has been resolved: net/smc: A NULL pointer dereferencing issue was addressed in smcpnetfindib. devname was called with dev.parent as an argument, but without performing a NULL-check before using it. This issue was resolved by checking the pointer...

Astra Linux - уязвимость в linux-6.1, linux-5.15

In the Linux kernel, the following vulnerabilities have been resolved: net/smc: fixed the LGR and link use-after-free issue. We encountered a LGR/link use-after-free issue, which manifested as the LGR/link refcnt reaching 0 early and entering the clear process, making resource access unsafe...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: net/smc: Avoid overwriting the copies of clcsock callback functions. The clcsock callback functions will be saved and replaced during the fallback process. However, if the fallback occurs more than once, the copies of these...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix general protection fault in smcdiagdump The syzbot report a crash: Oops: general protection fault, probably for non-canonical address 0xfbd5a5d5a0000003: 0000 1 SMP KASAN NOPTI KASAN: maybe wild-memory-access in rang...

Astra Linux - уязвимость в linux-5.10, linux-6.1

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix one NULL pointer dereference in smcibissgneedsync BUG: kernel NULL pointer dereference, address: 00000000000002ec PGD 0 P4D 0 Oops: Oops: 0000 1 SMP PTI CPU: 28 UID: 0 PID: 343 Comm: kworker/28:1 Kdump: loaded Tainte...

CVE-2026-31507

CVE-2026-31507 affects the Linux kernel SMC module (net/smc). The vulnerability is a double-free of the per-buffer state (smc_spd_priv) when tee(2) duplicates a splice pipe buffer, leading to a use-after-free and a kernel NULL pointer dereference, ultimately causing a kernel panic. The root cause...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013543)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013543 advisory. In the Linux kernel, the following vulnerability has been resolved: net/smc: fix potential panic dues to unprotected smcllcsrvaddlink There is a certain chance to...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013656)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013656 advisory. In the Linux kernel, the following vulnerability has been resolved: net/smc: Reset connection when trying to use SMCRv2 fails. We found a crash when using SMCRv2 wi...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013483)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013483 advisory. In the Linux kernel, the following vulnerability has been resolved: net/smc: Transitional solution for clcsock race issue We encountered a crash in smcsetsockopt and...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013537)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013537 advisory. In the Linux kernel, the following vulnerability has been resolved: net/smc: use smclgrlist.lock to protect smclgrlist.list iterate in smcrportadd While doing...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-010869)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-010869 advisory. In the Linux kernel, the following vulnerability has been resolved: net/smc: use smclgrlist.lock to protect smclgrlist.list iterate in smcrportadd While doing...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-010753)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-010753 advisory. In the Linux kernel, the following vulnerability has been resolved: net/smc: Transitional solution for clcsock race issue We encountered a crash in smcsetsockopt and...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-010693)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-010693 advisory. In the Linux kernel, the following vulnerability has been resolved: net/smc: Avoid overwriting the copies of clcsock callback functions The callback functions of...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-011239)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011239 advisory. In the Linux kernel, the following vulnerability has been resolved: net/smc: fix potential panic dues to unprotected smcllcsrvaddlink There is a certain chance to...

LSN-0119-1 Kernel Live Patch Security Notice

In the Linux kernel, the following vulnerability has been resolved: btrfs: ref-verify: fix use-after-free after invalid ref action At btrfsreftreemod after we successfully inserted the new ref entry local variable 'ref' into the respective block entry's rbtree local variable 'be', if we find an...