release v0.9.8: two new LPE modules (ptrace_pidfd, sudo_host)

Tags the two modules added this cycle (already on main): ptrace_pidfd (CVE-2026-46333, Qualys __ptrace_may_access/pidfd_getfd credential-fd theft, bd63aab) and sudo_host (CVE-2025-32462, Stratascale sudo -h/--host policy bypass, dd5f4fa).

This commit bumps the version strings (skeletonkey.c, README, docs/index.html) and prepends the v0.9.8 RELEASE_NOTES entry. Corpus is now 41 modules / 36 CVEs / 28 verified. Tagging fires release.yml, which rebuilds + publishes the four prebuilt binaries via the Node-24 artifact actions bumped in v0.9.7.

README.md

@@ -205,7 +205,7 @@ also compile (modules with Linux-only headers stub out gracefully).
 
 ## Status
 
-**v0.9.7 cut 2026-06-01.** 41 modules across 36 CVEs — **every
+**v0.9.8 cut 2026-06-02.** 41 modules across 36 CVEs — **every
 year 2016 → 2026 now covered**. Newest: `ptrace_pidfd` (CVE-2026-46333,
 Qualys's `__ptrace_may_access` / `pidfd_getfd` credential-steal) and
 `sudo_host` (CVE-2025-32462, Stratascale's sudo `--host` policy bypass).

docs/RELEASE_NOTES.md

@@ -1,3 +1,36 @@
+## SKELETONKEY v0.9.8 — two new LPE modules (ptrace_pidfd, sudo_host)
+
+Adds the two most compelling recent Linux LPEs not already in the corpus,
+taking it to **41 modules / 36 CVEs** (every year 2016 → 2026 still
+covered).
+
+**`ptrace_pidfd` — CVE-2026-46333** (Qualys TRU, 2026-05-20). A logic
+flaw in the kernel's `__ptrace_may_access()` path leaves a process that
+is *dropping* its credentials briefly reachable past its `dumpable`
+boundary; `pidfd_getfd(2)` rides that window to steal a root-opened file
+descriptor or authenticated channel from a transiently-privileged setuid
+binary (chage / pkexec / ssh-keysign) or root daemon. Default-distro, no
+userns, architecture-agnostic (descriptor theft, no shellcode). detect()
+is version-pinned (predates-gate at pidfd_getfd's 5.6 introduction;
+Debian backports 5.10.251 / 6.1.172 / 6.12.88 / 7.0.7). `--mitigate`
+sets `kernel.yama.ptrace_scope=2`.
+
+**`sudo_host` — CVE-2025-32462** (Rich Mirch / Stratascale, 2025-06-30;
+sibling of v0.8.0's `sudo_chwoot`). sudo's `-h`/`--host` option, meant
+only to pair with `-l`, was honored when running a command — so a
+sudoers rule scoped to a host other than the current machine (and not
+ALL) is usable via `sudo -h <host> <cmd>` for local root. Affects sudo
+1.8.8 → 1.9.17p0 (fixed 1.9.17p1); CWE-863, CVSS 8.8. Most relevant to
+fleet-wide / LDAP / SSSD sudoers.
+
+Both are honest ports: detect() is version-pinned and unit-tested (10 new
+detect() rows, all green in CI), and exploit() fires the real primitive
+and returns `EXPLOIT_FAIL` unless it can witness euid 0 — never
+fabricating root. Neither is VM-verified yet (both flagged "sweep
+pending" in `tools/verify-vm/targets.yaml`), so the verified count stays
+28 of 36. Each ships auditd + sigma + falco rules, MITRE ATT&CK + CWE
+metadata, and credits the original researcher in its `NOTICE.md`.
+
 ## SKELETONKEY v0.9.7 — kernel_range drift fix + CI Node 24 readiness
 
 Two maintenance fixes, no new modules.

docs/index.html

@@ -56,7 +56,7 @@
   <div class="container hero-inner">
     <div class="hero-eyebrow">
       <span class="dot dot-pulse"></span>
-      v0.9.7 — released 2026-06-01
+      v0.9.8 — released 2026-06-02
     </div>
     <h1 class="hero-title">
       <span class="display-wordmark">SKELETONKEY</span>
@@ -600,7 +600,7 @@ uid=0(root) gid=0(root)</pre>
       who found the bugs.
     </p>
     <p class="footer-meta">
-      v0.9.7 · MIT · <a href="https://github.com/KaraZajac/SKELETONKEY">github.com/KaraZajac/SKELETONKEY</a>
+      v0.9.8 · MIT · <a href="https://github.com/KaraZajac/SKELETONKEY">github.com/KaraZajac/SKELETONKEY</a>
     </p>
   </div>
 </footer>

skeletonkey.c

@@ -35,7 +35,7 @@
 #include <string.h>
 #include <unistd.h>
 
-#define SKELETONKEY_VERSION "0.9.7"
+#define SKELETONKEY_VERSION "0.9.8"
 
 static const char BANNER[] =
 "\n"