EUVD-2026-55552

In the Linux kernel, the following vulnerability has been resolved: userfaultfd: prevent registration of special VMAs Vova Tokarev says: userfaultfd allows registration on shadow stack VMAs. With userfaultfd access, you can register on the shadow stack, discard a page ... and inject a page with...

CVE-2026-68166 userfaultfd: prevent registration of special VMAs

In the Linux kernel, the following vulnerability has been resolved: userfaultfd: prevent registration of special VMAs Vova Tokarev says: userfaultfd allows registration on shadow stack VMAs. With userfaultfd access, you can register on the shadow stack, discard a page ... and inject a page with...

CVE-2026-68166 userfaultfd: prevent registration of special VMAs

In the Linux kernel, the following vulnerability has been resolved: userfaultfd: prevent registration of special VMAs Vova Tokarev says: userfaultfd allows registration on shadow stack VMAs. With userfaultfd access, you can register on the shadow stack, discard a page ... and inject a page with...

CVE-2026-68166

In the Linux kernel, the following vulnerability has been resolved: userfaultfd: prevent registration of special VMAs Vova Tokarev says: userfaultfd allows registration on shadow stack VMAs. With userfaultfd access, you can register on the shadow stack, discard a page ... and inject a page with...

CVE-2026-68165 mm/damon/core: validate ranges in damon_set_regions()

In the Linux kernel, the following vulnerability has been resolved: mm/damon/core: validate ranges in damonsetregions DAMON core logic assumes zero length regions don't exist. However, a few DAMON API callers including DAMONSYSFS, DAMONRECLAIM and DAMONLRUSORT allow users to set empty monitoring...

CVE-2026-68165

In the Linux kernel, the following vulnerability has been resolved: mm/damon/core: validate ranges in damonsetregions DAMON core logic assumes zero length regions don't exist. However, a few DAMON API callers including DAMONSYSFS, DAMONRECLAIM and DAMONLRUSORT allow users to set empty monitoring...

EUVD-2026-55551

In the Linux kernel, the following vulnerability has been resolved: mm/damon/core: validate ranges in damonsetregions DAMON core logic assumes zero length regions don't exist. However, a few DAMON API callers including DAMONSYSFS, DAMONRECLAIM and DAMONLRUSORT allow users to set empty monitoring...

CVE-2026-68165

The CVE affects the Linux kernel DAMON subsystem (mm/damon/core) where damon_set_regions() did not validate zero-length regions created by certain callers (DAMON_SYSFS, DAMON_RECLAIM, DAMON_LRU_SORT). This could trigger WARN_ONCE on CONFIG_DAMON_DEBUG_SANITY and cause a divide-by-zero in damon_me...

EUVD-2026-55550

In the Linux kernel, the following vulnerability has been resolved: mm/damon/core: disallow overlapping input ranges for damonsetregions damonsetregions assumes the input ranges are sorted by the address and don't overlap each other. Hence the assumption was initially to be explicitly validated...

CVE-2026-68164 mm/damon/core: disallow overlapping input ranges for damon_set_regions()

In the Linux kernel, the following vulnerability has been resolved: mm/damon/core: disallow overlapping input ranges for damonsetregions damonsetregions assumes the input ranges are sorted by the address and don't overlap each other. Hence the assumption was initially to be explicitly validated...

CVE-2026-68164

In the Linux kernel, the following vulnerability has been resolved: mm/damon/core: disallow overlapping input ranges for damonsetregions damonsetregions assumes the input ranges are sorted by the address and don't overlap each other. Hence the assumption was initially to be explicitly validated...

CVE-2026-68164

The CVE concerns the Linux kernel DAMON subsystem, specifically the function damon_set_regions() in mm/damon/core. The root cause was that input ranges were assumed to be sorted and non-overlapping, but a prior commit removed validation, allowing overlapping ranges. The consequence can be odd mon...

CVE-2026-68163 mm/page_vma_mapped: fix device-private PMD handling

In the Linux kernel, the following vulnerability has been resolved: mm/pagevmamapped: fix device-private PMD handling Commit 65edfda6f3f2 "mm/rmap: extend rmap and migration support device-private entries" introduced the concept of device-private PMD entries, but did not correctly update the rmap...

CVE-2026-68163

In the Linux kernel, the following vulnerability has been resolved: mm/pagevmamapped: fix device-private PMD handling Commit 65edfda6f3f2 "mm/rmap: extend rmap and migration support device-private entries" introduced the concept of device-private PMD entries, but did not correctly update the rmap...

EUVD-2026-55549

In the Linux kernel, the following vulnerability has been resolved: mm/pagevmamapped: fix device-private PMD handling Commit 65edfda6f3f2 "mm/rmap: extend rmap and migration support device-private entries" introduced the concept of device-private PMD entries, but did not correctly update the rmap...

CVE-2026-68162

In the Linux kernel, the following vulnerability has been resolved: sctp: avoid authenable sysctl UAF during netns teardown procsctpdoauth updates the SCTP control socket after changing net.sctp.authenable. The handler gets the per-net SCTP state from ctl-data, so an already opened sysctl file ca...

CVE-2026-68161

In the Linux kernel, the following vulnerability has been resolved: sctp: close UDP tunnel sockets during netns teardown procsctpdoudpport starts per-net SCTP UDP tunneling sockets when net.sctp.udpport is set, and stops/restarts them when the sysctl value changes. The netns exit path does not st...

CVE-2026-68161 sctp: close UDP tunnel sockets during netns teardown

In the Linux kernel, the following vulnerability has been resolved: sctp: close UDP tunnel sockets during netns teardown procsctpdoudpport starts per-net SCTP UDP tunneling sockets when net.sctp.udpport is set, and stops/restarts them when the sysctl value changes. The netns exit path does not st...

CVE-2026-68161 sctp: close UDP tunnel sockets during netns teardown

In the Linux kernel, the following vulnerability has been resolved: sctp: close UDP tunnel sockets during netns teardown procsctpdoudpport starts per-net SCTP UDP tunneling sockets when net.sctp.udpport is set, and stops/restarts them when the sysctl value changes. The netns exit path does not st...

EUVD-2026-55546

In the Linux kernel, the following vulnerability has been resolved: ceph: fix pre-auth out-of-bounds read on snaptrace in cephhandlecaps cephhandlecaps reads snaptracelen from the wire-format cephmdscaps header and uses it unconditionally to build a fake end pointer snaptrace + snaptracelen that ...