diff --git a/libafl/src/bolts/core_affinity.rs b/libafl/src/bolts/core_affinity.rs
index 3185111ac2..5a43c04a40 100644
--- a/libafl/src/bolts/core_affinity.rs
+++ b/libafl/src/bolts/core_affinity.rs
@@ -816,6 +816,51 @@ mod openbsd {
     }
 }
 
+#[cfg(any(target_os = "solaris", target_os = "illumos"))]
+#[inline]
+fn get_core_ids_helper() -> Result<Vec<CoreId>, Error> {
+    solaris::get_core_ids()
+}
+
+#[cfg(any(target_os = "solaris", target_os = "illumos"))]
+#[inline]
+fn set_for_current_helper(core_id: CoreId) -> Result<(), Error> {
+    solaris::set_for_current(core_id)
+}
+
+#[cfg(any(target_os = "solaris", target_os = "illumos"))]
+mod solaris {
+    use alloc::vec::Vec;
+    use std::thread::available_parallelism;
+
+    use super::CoreId;
+    use crate::Error;
+
+    #[allow(clippy::unnecessary_wraps)]
+    pub fn get_core_ids() -> Result<Vec<CoreId>, Error> {
+        Ok((0..(usize::from(available_parallelism()?)))
+            .into_iter()
+            .map(|n| CoreId { id: n })
+            .collect::<Vec<_>>())
+    }
+
+    pub fn set_for_current(core_id: CoreId) -> Result<(), Error> {
+        let result = unsafe {
+            libc::processor_bind(
+                libc::P_PID,
+                libc::PS_MYID,
+                core_id.id as i32,
+                std::ptr::null_mut(),
+            )
+        };
+        if result < 0 {
+            Err(Error::unknown("Failed to processor_bind"))
+        } else {
+            Ok(())
+        }
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use std::thread::available_parallelism;
diff --git a/libafl/src/bolts/llmp.rs b/libafl/src/bolts/llmp.rs
index b4bb3644ea..7e0c2d9dec 100644
--- a/libafl/src/bolts/llmp.rs
+++ b/libafl/src/bolts/llmp.rs
@@ -74,6 +74,7 @@ use core::{
     time::Duration,
 };
 #[cfg(all(unix, feature = "std"))]
+#[cfg(not(any(target_os = "solaris", target_os = "illumos")))]
 use std::os::unix::io::AsRawFd;
 #[cfg(feature = "std")]
 use std::{
@@ -87,6 +88,7 @@ use std::{
 #[cfg(all(debug_assertions, feature = "llmp_debug", feature = "std"))]
 use backtrace::Backtrace;
 #[cfg(all(unix, feature = "std"))]
+#[cfg(not(any(target_os = "solaris", target_os = "illumos")))]
 use nix::sys::socket::{self, sockopt::ReusePort};
 use serde::{Deserialize, Serialize};
 
@@ -380,6 +382,7 @@ fn tcp_bind(port: u16) -> Result<TcpListener, Error> {
     let listener = TcpListener::bind((_LLMP_BIND_ADDR, port))?;
 
     #[cfg(unix)]
+    #[cfg(not(any(target_os = "solaris", target_os = "illumos")))]
     socket::setsockopt(listener.as_raw_fd(), ReusePort, &true)?;
 
     Ok(listener)
diff --git a/libafl/src/bolts/shmem.rs b/libafl/src/bolts/shmem.rs
index f5b9881584..ee983936d4 100644
--- a/libafl/src/bolts/shmem.rs
+++ b/libafl/src/bolts/shmem.rs
@@ -800,12 +800,22 @@ pub mod unix_shmem {
 
         impl CommonUnixShMem {
             /// Create a new shared memory mapping, using shmget/shmat
+            #[allow(unused_qualifications)]
             pub fn new(map_size: usize) -> Result<Self, Error> {
+                #[cfg(any(target_os = "solaris", target_os = "illumos"))]
+                const SHM_R: libc::c_int = 0o400;
+                #[cfg(not(any(target_os = "solaris", target_os = "illumos")))]
+                const SHM_R: libc::c_int = libc::SHM_R;
+                #[cfg(any(target_os = "solaris", target_os = "illumos"))]
+                const SHM_W: libc::c_int = 0o200;
+                #[cfg(not(any(target_os = "solaris", target_os = "illumos")))]
+                const SHM_W: libc::c_int = libc::SHM_W;
+
                 unsafe {
                     let os_id = shmget(
                         libc::IPC_PRIVATE,
                         map_size,
-                        libc::IPC_CREAT | libc::IPC_EXCL | libc::SHM_R | libc::SHM_W,
+                        libc::IPC_CREAT | libc::IPC_EXCL | SHM_R | SHM_W,
                     );
 
                     if os_id < 0_i32 {