diff options
| author | Alexander Mikhalitsyn <[email protected]> | 2023-06-27 10:43:14 -0700 |
|---|---|---|
| committer | Jakub Kicinski <[email protected]> | 2023-06-27 10:50:22 -0700 |
| commit | a9c49cc2f5b578c4ffa0ee135aa552d06dec0e82 (patch) | |
| tree | 8c033bdb8f17c3ebf4c5f8ecc95aab953a1fd21c /arch/x86/kernel/cpu/microcode/amd.c | |
| parent | 603fc57ab70c306fa483ca66152223e861455e09 (diff) | |
net: scm: introduce and use scm_recv_unix helper
Recently, our friends from bluetooth subsystem reported [1] that after
commit 5e2ff6704a27 ("scm: add SO_PASSPIDFD and SCM_PIDFD") scm_recv()
helper become unusable in kernel modules (because it uses unexported
pidfd_prepare() API).
We were aware of this issue and workarounded it in a hard way
by commit 97154bcf4d1b ("af_unix: Kconfig: make CONFIG_UNIX bool").
But recently a new functionality was added in the scope of commit
817efd3cad74 ("Bluetooth: hci_sock: Forward credentials to monitor")
and after that bluetooth can't be compiled as a kernel module.
After some discussion in [1] we decided to split scm_recv() into
two helpers, one won't support SCM_PIDFD (used for unix sockets),
and another one will be completely the same as it was before commit
5e2ff6704a27 ("scm: add SO_PASSPIDFD and SCM_PIDFD").
Link: https://lore.kernel.org/lkml/CAJqdLrpFcga4n7wxBhsFqPQiN8PKFVr6U10fKcJ9W7AcZn+o6Q@mail.gmail.com/ [1]
Fixes: 5e2ff6704a27 ("scm: add SO_PASSPIDFD and SCM_PIDFD")
Signed-off-by: Alexander Mikhalitsyn <[email protected]>
Reviewed-by: Kuniyuki Iwashima <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
Diffstat (limited to 'arch/x86/kernel/cpu/microcode/amd.c')
0 files changed, 0 insertions, 0 deletions