kernel: smc: Fix use-after-free in tcp_write_timer_handler()

In the Linux kernel, the following vulnerability has been resolved: smc: Fix use-after-free in tcpwritetimerhandler. With Eric's ref tracker, syzbot finally found a repro for use-after-free in tcpwritetimerhandler by kernel TCP sockets. 0 If SMC creates a kernel socket in smccreate, the kernel...

kernel: smc: Fix use-after-free in tcp_write_timer_handler()

In the Linux kernel, the following vulnerability has been resolved: smc: Fix use-after-free in tcpwritetimerhandler. With Eric's ref tracker, syzbot finally found a repro for use-after-free in tcpwritetimerhandler by kernel TCP sockets. 0 If SMC creates a kernel socket in smccreate, the kernel...

K000163361: Linux kernel vulnerability CVE-2023-53781

Security Advisory Description In the Linux kernel, the following vulnerability has been resolved: smc: Fix use-after-free in tcpwritetimerhandler. With Eric's ref tracker, syzbot finally found a repro for use-after-free in tcpwritetimerhandler by kernel TCP sockets. 0 If SMC creates a kernel sock...

Linux Distros Unpatched Vulnerability : CVE-2026-90065

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net/smc: release the internal TCP sock on IPPROTOSMC socket creation failure IPPROTOSMC sockets create an internal TCP sock clcsock from the proto-init hook. Wh...

Linux Distros Unpatched Vulnerability : CVE-2026-90108

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net/smc: free stashed qentry before overwrite in REQADDLINK to ADDLINK transition When smcllceventhandler transitions the local LLC flow from...

Linux Distros Unpatched Vulnerability : CVE-2026-90107

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net/smc: free pending qentry in smcllcflowstop before memset smcllcflowstop resets a flow struct with a blind memset: spinlockbh&lgr-llcflowlock %NASLMINLEVEL...

DEBIAN-CVE-2026-90108

In the Linux kernel, the following vulnerability has been resolved: net/smc: free stashed qentry before overwrite in REQADDLINK to ADDLINK transition When smcllceventhandler transitions the local LLC flow from SMCLLCFLOWREQADDLINK to SMCLLCFLOWADDLINK on arrival of an ADDLINK request, it calls...

AZL-102848 CVE-2026-90108 affecting package kernel 6.6.152.1-1

In the Linux kernel, the following vulnerability has been resolved: net/smc: free stashed qentry before overwrite in REQADDLINK to ADDLINK transition When smcllceventhandler transitions the local LLC flow from SMCLLCFLOWREQADDLINK to SMCLLCFLOWADDLINK on arrival of an ADDLINK request, it calls...

DEBIAN-CVE-2026-90107

In the Linux kernel, the following vulnerability has been resolved: net/smc: free pending qentry in smcllcflowstop before memset smcllcflowstop resets a flow struct with a blind memset: spinlockbh&lgr-llcflowlock; memsetflow, 0, sizeofflow; flow-type = SMCLLCFLOWNONE; spinunlockbh&lgr-llcflowlock...

CVE-2026-90108

In the Linux kernel, the following vulnerability has been resolved: net/smc: free stashed qentry before overwrite in REQADDLINK to ADDLINK transition When smcllceventhandler transitions the local LLC flow from SMCLLCFLOWREQADDLINK to SMCLLCFLOWADDLINK on arrival of an ADDLINK request, it calls...

CVE-2026-90107

In the Linux kernel, the following vulnerability has been resolved: net/smc: free pending qentry in smcllcflowstop before memset smcllcflowstop resets a flow struct with a blind memset: spinlockbh&lgr-llcflowlock; memsetflow, 0, sizeofflow; flow-type = SMCLLCFLOWNONE; spinunlockbh&lgr-llcflowlock...

AZL-102797 CVE-2026-90107 affecting package kernel 6.6.152.1-1

In the Linux kernel, the following vulnerability has been resolved: net/smc: free pending qentry in smcllcflowstop before memset smcllcflowstop resets a flow struct with a blind memset: spinlockbh&lgr-llcflowlock; memsetflow, 0, sizeofflow; flow-type = SMCLLCFLOWNONE; spinunlockbh&lgr-llcflowlock...

CVE-2026-90065

In the Linux kernel, the following vulnerability has been resolved: net/smc: release the internal TCP sock on IPPROTOSMC socket creation failure IPPROTOSMC sockets create an internal TCP sock "clcsock" from the proto-init hook. When socket creation fails after proto-init has run - e.g. a cgroup B...

DEBIAN-CVE-2026-90065

In the Linux kernel, the following vulnerability has been resolved: net/smc: release the internal TCP sock on IPPROTOSMC socket creation failure IPPROTOSMC sockets create an internal TCP sock "clcsock" from the proto-init hook. When socket creation fails after proto-init has run - e.g. a cgroup B...

CVE-2026-90107

CVE-2026-90107 is a memory leak in the Linux kernel's SMC (Shared Memory Communications) module, specifically in smc_llc_flow_stop(). A blind memset zeroes the flow struct without first freeing a potentially non-NULL flow->qentry pointer. The leak is triggered when a late-arriving duplicate CO...

CVE-2026-90107 net/smc: free pending qentry in smc_llc_flow_stop() before memset

In the Linux kernel, the following vulnerability has been resolved: net/smc: free pending qentry in smcllcflowstop before memset smcllcflowstop resets a flow struct with a blind memset: spinlockbh&lgr-llcflowlock; memsetflow, 0, sizeofflow; flow-type = SMCLLCFLOWNONE; spinunlockbh&lgr-llcflowlock...

EUVD-2026-81700

In the Linux kernel, the following vulnerability has been resolved: net/smc: free pending qentry in smcllcflowstop before memset smcllcflowstop resets a flow struct with a blind memset: spinlockbh&lgr-llcflowlock; memsetflow, 0, sizeofflow; flow-type = SMCLLCFLOWNONE; spinunlockbh&lgr-llcflowlock...

CVE-2026-90107 net/smc: free pending qentry in smc_llc_flow_stop() before memset

In the Linux kernel, the following vulnerability has been resolved: net/smc: free pending qentry in smcllcflowstop before memset smcllcflowstop resets a flow struct with a blind memset: spinlockbh&lgr-llcflowlock; memsetflow, 0, sizeofflow; flow-type = SMCLLCFLOWNONE; spinunlockbh&lgr-llcflowlock...

CVE-2026-90108 net/smc: free stashed qentry before overwrite in REQ_ADD_LINK to ADD_LINK transition

In the Linux kernel, the following vulnerability has been resolved: net/smc: free stashed qentry before overwrite in REQADDLINK to ADDLINK transition When smcllceventhandler transitions the local LLC flow from SMCLLCFLOWREQADDLINK to SMCLLCFLOWADDLINK on arrival of an ADDLINK request, it calls...

CVE-2026-90108

CVE-2026-90108 is a memory leak in the Linux kernel 's net/smc subsystem. When smc_llc_event_handler() transitions the local LLC flow from SMC_LLC_FLOW_REQ_ADD_LINK to SMC_LLC_FLOW_ADD_LINK, it overwrites flow->qentry via smc_llc_flow_qentry_set() without first freeing a previously stashed ent...