CVE-2026-68178

In the Linux kernel, the following vulnerability has been resolved: misc: nsm: pin the module while the device is open miscopen installs a misc driver's file operations with fopsget, which pins fileoperations::owner before replacing the file's fop. The NSM misc device leaves nsmdevfops.owner unse...

CVE-2026-68179

In the Linux kernel, the following vulnerability has been resolved: misc: nsm: only unlock nsmdev on post-lock error paths nsmdevioctl jumps to the common out label even when the initial copyfromuser fails before nsm-lock has been taken. The error path then blindly unlocks a mutex that was never...

UBUNTU-CVE-2026-68178

In the Linux kernel, the following vulnerability has been resolved: misc: nsm: pin the module while the device is open miscopen installs a misc driver's file operations with fopsget, which pins fileoperations::owner before replacing the file's fop. The NSM misc device leaves nsmdevfops.owner unse...

CVE-2026-68179

CVE-2026-68179 affects the Linux kernel NSM: nsm_dev_ioctl() may unlock a mutex that was never acquired when pre-lock copy_from_user() fails, risking a local DoS. A patch changes control flow to return immediately on pre-lock failures and to keep the unlock path for post-lock errors only. The vul...