[PATCH net v2 00/10] rxrpc: Miscellaneous fixes
David Howells
dhowells at redhat.com
Thu Jun 18 06:47:51 PDT 2026
Here are some miscellaneous AF_RXRPC fixes for more stuff found by Sashiko[1][2]:
(1) Reject ACKALL packets for calls not in Tx or immediate post-Tx state.
(2) Fix connection leak from AF_RXRPC recvmsg userspace OOB handling.
(3) Fix double unlock in AF_RXRPC recvmsg userspace OOB handling.
(4) Fix AFS preallocate charge to flush the waitqueue after unlistening
the socket so that any charging thread that does manage to get started
will be waited for before socket destruction.
(5) Fix AFS OOB notify handling to cancel in-progress OOB notification
handling and then to flush the workqueue it's on.
(6) Fix handling of apparent reply reception before initial transmission
starts in client call.
(7) Fix OOB challenge leak in cleanup on notification failure.
(8) Fix infinite loop in recvmsg if OOB packet available, but no calls.
(9) Fix notify vs recvmsg race where notify thinks the call is already
queued.
(10) Fix MSG_PEEK call leak for calls with no content.
David
The patches can be found here also:
http://git.kernel.org/cgit/linux/kernel/git/dhowells/linux-fs.git/log/?h=rxrpc-fixes
[1] https://sashiko.dev/#/patchset/20260609140911.838677-1-dhowells%40redhat.com
[2] https://sashiko.dev/#/patchset/20260616155749.2125907-1-dhowells%40redhat.com
Changes
=======
ver #2)
- Addressed the Sashiko review[2] of ver #1.
- Added patches to fix more bugs that it found.
- Adjusted AFS preallocate charge cleanup to only cancel the preallocate
work item after unlistening rather than flushing the entire waitqueue
(which may be waiting on DNS lookup).
-
David Howells (9):
rxrpc: Fix leak of connection from OOB challenge
rxrpc: Fix double unlock in rxrpc_recvmsg()
afs: Fix further netns teardown to cancel the preallocation charger
afs: Fix uncancelled rxrpc OOB message handler
rxrpc: Fix the reception of a reply packet before data transmission
rxrpc: Fix oob challenge leak in cleanup after notification failure
rxrpc: Fix potential infinite loop in rxrpc_recvmsg()
rxrpc: Fix socket notification race
rxrpc: Fix leak of released call in recvmsg(MSG_PEEK)
Wyatt Feng (1):
rxrpc: input: reject ACKALL outside transmit phase
fs/afs/cm_security.c | 3 ++-
fs/afs/rxrpc.c | 10 +++++++++-
net/rxrpc/ar-internal.h | 4 ++--
net/rxrpc/conn_event.c | 9 +++++++--
net/rxrpc/input.c | 29 +++++++++++++++++++++++++----
net/rxrpc/oob.c | 12 ++++++++++--
net/rxrpc/recvmsg.c | 10 ++++------
7 files changed, 59 insertions(+), 18 deletions(-)
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