CVE-2026-74692 net/smc: fix TOCTOU race between smc_listen_out() and listener close

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix TOCTOU race between smclistenout and listener close smclistenout reads lsmc-sk.skstate without the listener lock, then acquires locksocknested only after the check passes. This opens a window where smccloseactive can...

CVE-2026-74692

A TOCTOU race condition in the Linux kernel's net/smc module allows a remote attacker to trigger kernel memory exhaustion. The function smc_listen_out() reads the listener's socket state without holding the listener lock, then acquires the lock only afterward. This window lets smc_close_active() ...

EUVD-2026-64379

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix TOCTOU race between smclistenout and listener close smclistenout reads lsmc-sk.skstate without the listener lock, then acquires locksocknested only after the check passes. This opens a window where smccloseactive can...

CVE-2026-74631

CVE-2026-74631 affects the Linux kernel net: smc subsystem, specifically the smc_rx_splice() function. The root cause is a splice entry lifetime imbalance : pages are passed to splice_to_pipe() before the references covering each entry's lifetime are taken. In the VM-backed RMB path, unqueued ent...

EUVD-2026-64568

In the Linux kernel, the following vulnerability has been resolved: net: smc: fix splice entry lifetime imbalance in smcrxsplice smcrxsplice passes pages to splicetopipe before taking the references that cover the lifetime of each splice entry. In the VM-backed RMB path, splicetopipe may drop...

CVE-2026-74631 net: smc: fix splice entry lifetime imbalance in smc_rx_splice

In the Linux kernel, the following vulnerability has been resolved: net: smc: fix splice entry lifetime imbalance in smcrxsplice smcrxsplice passes pages to splicetopipe before taking the references that cover the lifetime of each splice entry. In the VM-backed RMB path, splicetopipe may drop...

CVE-2026-74631 net: smc: fix splice entry lifetime imbalance in smc_rx_splice

In the Linux kernel, the following vulnerability has been resolved: net: smc: fix splice entry lifetime imbalance in smcrxsplice smcrxsplice passes pages to splicetopipe before taking the references that cover the lifetime of each splice entry. In the VM-backed RMB path, splicetopipe may drop...

Linux Distros Unpatched Vulnerability : CVE-2026-74631

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: smc: fix splice entry lifetime imbalance in smcrxsplice smcrxsplice passes pages to splicetopipe before taking the references that cover the lifetime of ea...

PT-2026-79697

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix TOCTOU race between smc listen out and listener close smc listen out reads lsmc-sk.sk state without the listener lock, then acquires lock sock nested only after the check passes. This opens a window where smc close...

PT-2026-79724

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix qentry overwrite for CONFIRM LINK and ADD LINK CONT in smc llc event handler The SMC LLC CONFIRM LINK / SMC LLC ADD LINK CONT branch in smc llc event handler stores an incoming qentry into the local LLC flow without...

Linux Distros Unpatched Vulnerability : CVE-2026-74719

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net/smc: fix qentry overwrite for CONFIRMLINK and ADDLINKCONT in smcllceventhandler The SMCLLCCONFIRMLINK / SMCLLCADDLINKCONT branch in smcllceventhandler store...

Linux Distros Unpatched Vulnerability : CVE-2026-74692

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net/smc: fix TOCTOU race between smclistenout and listener close smclistenout reads lsmc-sk.skstate without the listener lock, then acquires locksocknested only...

PT-2026-79636

In the Linux kernel, the following vulnerability has been resolved: net: smc: fix splice entry lifetime imbalance in smc rx splice smc rx splice passes pages to splice to pipe before taking the references that cover the lifetime of each splice entry. In the VM-backed RMB path, splice to pipe may...

kernel: net/smc: reject CHID-0 ACCEPT that matches an empty ism_dev slot

A flaw was found in the Linux kernel's Server-Message-Block Direct SMC-D client. A remote attacker can exploit this vulnerability by sending a specially crafted SMC-Dv2 proposal with a Channel Identifier CHID of 0. This malicious proposal can cause a null pointer dereference in the kernel's SMC...

kernel: net/smc: reject CHID-0 ACCEPT that matches an empty ism_dev slot

A flaw was found in the Linux kernel's Server-Message-Block Direct SMC-D client. A remote attacker can exploit this vulnerability by sending a specially crafted SMC-Dv2 proposal with a Channel Identifier CHID of 0. This malicious proposal can cause a null pointer dereference in the kernel's SMC...

kernel: net/smc: reject CHID-0 ACCEPT that matches an empty ism_dev slot

A flaw was found in the Linux kernel's Server-Message-Block Direct SMC-D client. A remote attacker can exploit this vulnerability by sending a specially crafted SMC-Dv2 proposal with a Channel Identifier CHID of 0. This malicious proposal can cause a null pointer dereference in the kernel's SMC...

Important: kernel security, bug fix, and enhancement update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: net: ieee802154: do not leave a dangling sk pointer in ieee802154create CVE-2024-56602 kernel: ip6gre: Use cached t-net in ip6erspanchangelink CVE-2026-46120 kernel: sched/psi: fix race...

CVE-2026-74493

A flaw was found in the Linux kernel's net/smc component. A use-after-free vulnerability occurs during link group termination when a concurrent close operation unregisters a connection and frees its socket before the termination worker can properly hold the socket. This race condition can lead to...

SUSE CVE-2026-74493

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix socket use-after-free during link group termination smclgrterminate drops connslock after finding a connection in lgr-connsall, but before taking a reference on its socket. The connection is embedded in the socket, a...

AZL-96326 CVE-2026-74493 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix socket use-after-free during link group termination smclgrterminate drops connslock after finding a connection in lgr-connsall, but before taking a reference on its socket. The connection is embedded in the socket, a...