CVE-2026-10655 Use-after-free race in SNTP async client when closing the socket while the socket service is still polling it

The asynchronous SNTP client in Zephyr subsys/net/lib/sntp/sntp.c, sntpcloseasync closed the UDP socket file descriptor directly from the calling thread immediately after detaching it from the network socket service, without synchronizing with the socket-service poll thread. The socket service...

CVE-2026-10654 RFCOMM session-disconnect race leaks session/L2CAP and denies further RFCOMM service in Zephyr Bluetooth Classic

A race condition in the Zephyr Bluetooth Classic RFCOMM host stack subsys/bluetooth/host/classic/rfcomm.c mishandles a simultaneous bidirectional session disconnect. When the local device has initiated a session teardown state BTRFCOMMSTATEDISCONNECTING, DISC sent, RTX timer armed and the connect...

CVE-2026-10654

The CVE-2026-10654 issue is a race in Zephyr’s Bluetooth Classic RFCOMM host stack (subsys/bluetooth/host/classic/rfcomm.c): when one side initiates a session teardown and the peer simultaneously sends a DISC for DLCI 0, rfcomm_handle_disc() forces the session to DISCONNECTED without calling bt_l...

CVE-2026-10654

A race condition in the Zephyr Bluetooth Classic RFCOMM host stack subsys/bluetooth/host/classic/rfcomm.c mishandles a simultaneous bidirectional session disconnect. When the local device has initiated a session teardown state BTRFCOMMSTATEDISCONNECTING, DISC sent, RTX timer armed and the connect...

CVE-2026-10654 RFCOMM session-disconnect race leaks session/L2CAP and denies further RFCOMM service in Zephyr Bluetooth Classic

A race condition in the Zephyr Bluetooth Classic RFCOMM host stack subsys/bluetooth/host/classic/rfcomm.c mishandles a simultaneous bidirectional session disconnect. When the local device has initiated a session teardown state BTRFCOMMSTATEDISCONNECTING, DISC sent, RTX timer armed and the connect...

PT-2026-53913

A race condition in the Zephyr Bluetooth Classic RFCOMM host stack subsys/bluetooth/host/classic/rfcomm.c mishandles a simultaneous bidirectional session disconnect. When the local device has initiated a session teardown state BT RFCOMM STATE DISCONNECTING, DISC sent, RTX timer armed and the...

PT-2026-53914

The asynchronous SNTP client in Zephyr subsys/net/lib/sntp/sntp.c, sntp close async closed the UDP socket file descriptor directly from the calling thread immediately after detaching it from the network socket service, without synchronizing with the socket-service poll thread. The socket service...

CVE-2026-10648

mcumgrserialprocessfrag in subsys/mgmt/mcumgr/transport/src/serialutil.c calls netbufreset on the result of smppacketalloc before checking it for NULL. smppacketalloc uses netbufallocKNOWAIT against the shared MCUmgr packet pool CONFIGMCUMGRTRANSPORTNETBUFCOUNT, default 4, which returns NULL when...

EUVD-2026-40239

mcumgrserialprocessfrag in subsys/mgmt/mcumgr/transport/src/serialutil.c calls netbufreset on the result of smppacketalloc before checking it for NULL. smppacketalloc uses netbufallocKNOWAIT against the shared MCUmgr packet pool CONFIGMCUMGRTRANSPORTNETBUFCOUNT, default 4, which returns NULL when...

CVE-2026-10648

mcumgrserialprocessfrag in subsys/mgmt/mcumgr/transport/src/serialutil.c calls netbufreset on the result of smppacketalloc before checking it for NULL. smppacketalloc uses netbufallocKNOWAIT against the shared MCUmgr packet pool CONFIGMCUMGRTRANSPORTNETBUFCOUNT, default 4, which returns NULL when...

CVE-2026-10648 NULL-pointer dereference in MCUmgr serial/console SMP transport on buffer-pool exhaustion

mcumgrserialprocessfrag in subsys/mgmt/mcumgr/transport/src/serialutil.c calls netbufreset on the result of smppacketalloc before checking it for NULL. smppacketalloc uses netbufallocKNOWAIT against the shared MCUmgr packet pool CONFIGMCUMGRTRANSPORTNETBUFCOUNT, default 4, which returns NULL when...

CVE-2026-10648 NULL-pointer dereference in MCUmgr serial/console SMP transport on buffer-pool exhaustion

mcumgrserialprocessfrag in subsys/mgmt/mcumgr/transport/src/serialutil.c calls netbufreset on the result of smppacketalloc before checking it for NULL. smppacketalloc uses netbufallocKNOWAIT against the shared MCUmgr packet pool CONFIGMCUMGRTRANSPORTNETBUFCOUNT, default 4, which returns NULL when...

CVE-2026-10648

CVE-2026-10648 affects Zephyr’s MCUmgr serial/console SMP transport paths. The bug occurs in mcumgr_serial_process_frag() where net_buf_reset() is invoked on the result of smp_packet_alloc() before checking NULL. smp_packet_alloc() draws from the shared MCUmgr packet pool (default 4 entries) via ...

PT-2026-53755

Name of the Vulnerable Software and Affected Versions Zephyr version 4.4.0 Description An issue exists where the mcumgr serial process frag function in subsys/mgmt/mcumgr/transport/src/serial util.c calls net buf reset on the result of smp packet alloc without first verifying if the result is NUL...

SUSE CVE-2026-53298

In the Linux kernel, the following vulnerability has been resolved: net: airoha: Move ndesc initialization at end of airohaqdmainitrxqueue If queue entry or DMA descriptor list allocation fails in airohaqdmainitrxqueue routine, airohaqdmacleanup will trigger a NULL pointer dereference running...

CVE-2026-53298

In the Linux kernel, the following vulnerability has been resolved: net: airoha: Move ndesc initialization at end of airohaqdmainitrxqueue If queue entry or DMA descriptor list allocation fails in airohaqdmainitrxqueue routine, airohaqdmacleanup will trigger a NULL pointer dereference running...

DEBIAN-CVE-2026-53298

In the Linux kernel, the following vulnerability has been resolved: net: airoha: Move ndesc initialization at end of airohaqdmainitrxqueue If queue entry or DMA descriptor list allocation fails in airohaqdmainitrxqueue routine, airohaqdmacleanup will trigger a NULL pointer dereference running...

UBUNTU-CVE-2026-53298

In the Linux kernel, the following vulnerability has been resolved: net: airoha: Move ndesc initialization at end of airohaqdmainitrxqueue If queue entry or DMA descriptor list allocation fails in airohaqdmainitrxqueue routine, airohaqdmacleanup will trigger a NULL pointer dereference running...

CVE-2026-53298 net: airoha: Move ndesc initialization at end of airoha_qdma_init_rx_queue()

In the Linux kernel, the following vulnerability has been resolved: net: airoha: Move ndesc initialization at end of airohaqdmainitrxqueue If queue entry or DMA descriptor list allocation fails in airohaqdmainitrxqueue routine, airohaqdmacleanup will trigger a NULL pointer dereference running...

CVE-2026-53298

In the Linux kernel, the following vulnerability has been resolved: net: airoha: Move ndesc initialization at end of airohaqdmainitrxqueue If queue entry or DMA descriptor list allocation fails in airohaqdmainitrxqueue routine, airohaqdmacleanup will trigger a NULL pointer dereference running...