CVE-2026-64027

In the Linux kernel, the following vulnerability has been resolved: net: shaper: rework the VALID marking again Recent commit changed the semantics from NOTVALID to VALID. I didn't realize that the flags are not stored atomically with the entry in XArray. There's still a race of reader observing ...

CVE-2026-64027 net: shaper: rework the VALID marking (again)

In the Linux kernel, the following vulnerability has been resolved: net: shaper: rework the VALID marking again Recent commit changed the semantics from NOTVALID to VALID. I didn't realize that the flags are not stored atomically with the entry in XArray. There's still a race of reader observing ...

EUVD-2026-45600

In the Linux kernel, the following vulnerability has been resolved: net: shaper: rework the VALID marking again Recent commit changed the semantics from NOTVALID to VALID. I didn't realize that the flags are not stored atomically with the entry in XArray. There's still a race of reader observing ...

CVE-2026-64027

The CVE-2026-64027 issue affects the Linux kernel net: shaper component (XArray-based marking of entries). A race occurs when a reader observes a VALID mark is later invalidated by a writer reusing a slot, potentially leading to a use-after-free if net_shaper_rollback() frees entries without obse...

CVE-2026-64027 net: shaper: rework the VALID marking (again)

In the Linux kernel, the following vulnerability has been resolved: net: shaper: rework the VALID marking again Recent commit changed the semantics from NOTVALID to VALID. I didn't realize that the flags are not stored atomically with the entry in XArray. There's still a race of reader observing ...