CVE-2022-50516

The CVE-2022-50516 issue in the Linux kernel’s fs: dlm was fixed by a patch that ensures sb_lvbptr is not dereferenced when DLM_LKF_VALBLK is involved, avoiding a potential NULL/dangling pointer dereference in memcpy paths. The fix copies lvbptr arrays only when DLM_LKF_VALBLK is set (not merely ...

kernel: fs: dlm: fix invalid derefence of sb_lvbptr

In the Linux kernel, the following vulnerability has been resolved: fs: dlm: fix invalid derefence of sblvbptr I experience issues when putting a lkbsb on the stack and have sblvbptr field to a dangled pointer while not using DLMLKFVALBLK. It will crash with the following kernel message, the...