diff options
| author |   Budimir Markovic <markovicbudimir@gmail.com> | 2025-08-07 04:18:11 +0000 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2025-08-08 12:55:00 -0700 |
| commit | aba0c94f61ec05315fa7815d21aefa4c87f6a9f4 (patch) | |
| tree | 76de9ac72880d01c4f0746117a73157a216705ab /include/uapi/linux/android/ssh:/git@git.zx2c4.com | |
| parent | net: ti: icss-iep: Fix incorrect type for return value in extts_enable() (diff) | |
vsock: Do not allow binding to VMADDR_PORT_ANY
It is possible for a vsock to autobind to VMADDR_PORT_ANY. This can
cause a use-after-free when a connection is made to the bound socket.
The socket returned by accept() also has port VMADDR_PORT_ANY but is not
on the list of unbound sockets. Binding it will result in an extra
refcount decrement similar to the one fixed in fcdd2242c023 (vsock: Keep
the binding until socket destruction).
Modify the check in __vsock_bind_connectible() to also prevent binding
to VMADDR_PORT_ANY.
Fixes: d021c344051a ("VSOCK: Introduce VM Sockets")
Reported-by: Budimir Markovic <markovicbudimir@gmail.com>
Signed-off-by: Budimir Markovic <markovicbudimir@gmail.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Link: https://patch.msgid.link/20250807041811.678-1-markovicbudimir@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/uapi/linux/android/ssh:/git@git.zx2c4.com')
0 files changed, 0 insertions, 0 deletions