kernel/git/stable/linux.git/net/sunrpc, branch linux-5.19.y

Revert "SUNRPC: Remove unreachable error condition"

2022-09-23T12:14:02+00:00

[ Upstream commit 13bd9014180425f5a35eaf3735971d582c299292 ] This reverts commit efe57fd58e1cb77f9186152ee12a8aa4ae3348e0. The assumption that it is impossible to return an ERR pointer from rpc_run_task() no longer holds due to commit 25cf32ad5dba ("SUNRPC: Handle allocation failure in rpc_new_task()"). Fixes: 25cf32ad5dba ('SUNRPC: Handle allocation failure in rpc_new_task()') Fixes: efe57fd58e1c ('SUNRPC: Remove unreachable error condition') Signed-off-by: Dan Aloni Signed-off-by: Trond Myklebust Signed-off-by: Sasha Levin

SUNRPC: Fix call completion races with call_decode()

2022-09-23T12:14:02+00:00

[ Upstream commit 17814819ac9829a437e06fbb5c7056a1f4f893da ] We need to make sure that the req->rq_private_buf is completely up to date before we make req->rq_reply_bytes_recvd visible to the call_decode() routine in order to avoid triggering the WARN_ON(). Reported-by: Benjamin Coddington Fixes: 72691a269f0b ("SUNRPC: Don't reuse bvec on retransmission of the request") Tested-by: Benjamin Coddington Signed-off-by: Trond Myklebust Signed-off-by: Sasha Levin

SUNRPC: RPC level errors should set task->tk_rpc_status

2022-08-31T15:18:01+00:00

[ Upstream commit ed06fce0b034b2e25bd93430f5c4cbb28036cc1a ] Fix up a case in call_encode() where we're failing to set task->tk_rpc_status when an RPC level error occurred. Fixes: 9c5948c24869 ("SUNRPC: task should be exit if encode return EKEYEXPIRED more times") Signed-off-by: Trond Myklebust Signed-off-by: Sasha Levin

net/sunrpc: fix potential memory leaks in rpc_sysfs_xprt_state_change()

2022-08-25T09:45:32+00:00

commit bfc48f1b0505ffcb03a6d749139b7577d6b81ae0 upstream. The issue happens on some error handling paths. When the function fails to grab the object `xprt`, it simply returns 0, forgetting to decrease the reference count of another object `xps`, which is increased by rpc_sysfs_xprt_kobj_get_xprt_switch(), causing refcount leaks. Also, the function forgets to check whether `xps` is valid before using it, which may result in NULL-dereferencing issues. Fix it by adding proper error handling code when either `xprt` or `xps` is NULL. Fixes: 5b7eb78486cd ("SUNRPC: take a xprt offline using sysfs") Signed-off-by: Xin Xiong Signed-off-by: Xin Tan Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman

SUNRPC: Don't reuse bvec on retransmission of the request

2022-08-25T09:45:15+00:00

commit 72691a269f0baad6d5f4aa7af97c29081b86d70f upstream. If a request is re-encoded and then retransmitted, we need to make sure that we also re-encode the bvec, in case the page lists have changed. Fixes: ff053dbbaffe ("SUNRPC: Move the call to xprt_send_pagedata() out of xprt_sock_sendmsg()") Signed-off-by: Trond Myklebust Signed-off-by: Greg Kroah-Hartman

SUNRPC: Reinitialise the backchannel request buffers before reuse

2022-08-25T09:45:15+00:00

commit 6622e3a73112fc336c1c2c582428fb5ef18e456a upstream. When we're reusing the backchannel requests instead of freeing them, then we should reinitialise any values of the send/receive xdr_bufs so that they reflect the available space. Fixes: 0d2a970d0ae5 ("SUNRPC: Fix a backchannel race") Signed-off-by: Trond Myklebust Signed-off-by: Greg Kroah-Hartman

sunrpc: fix expiry of auth creds

2022-08-25T09:45:15+00:00

commit f1bafa7375c01ff71fb7cb97c06caadfcfe815f3 upstream. Before this commit, with a large enough LRU of expired items (100), the loop skipped all the expired items and was entirely ineffectual in trimming the LRU list. Fixes: 95cd623250ad ('SUNRPC: Clean up the AUTH cache code') Signed-off-by: Dan Aloni Signed-off-by: Trond Myklebust Signed-off-by: Greg Kroah-Hartman

Merge tag 'nfsd-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux

2022-07-02T18:20:56+00:00

Pull nfsd fixes from Chuck Lever: "Notable regression fixes: - Fix NFSD crash during NFSv4.2 READ_PLUS operation - Fix incorrect status code returned by COMMIT operation" * tag 'nfsd-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: SUNRPC: Fix READ_PLUS crasher NFSD: restore EINVAL error translation in nfsd_commit()

SUNRPC: Fix READ_PLUS crasher

2022-06-30T21:41:08+00:00

Looks like there are still cases when "space_left - frag1bytes" can legitimately exceed PAGE_SIZE. Ensure that xdr->end always remains within the current encode buffer. Reported-by: Bruce Fields Reported-by: Zorro Lang Link: https://bugzilla.kernel.org/show_bug.cgi?id=216151 Fixes: 6c254bf3b637 ("SUNRPC: Fix the calculation of xdr->end in xdr_get_next_encode_buffer()") Signed-off-by: Chuck Lever

Merge tag 'nfs-for-5.19-2' of git://git.linux-nfs.org/projects/anna/linux-nfs

2022-06-17T20:17:57+00:00

Pull NFS client fixes from Anna Schumaker: - Add FMODE_CAN_ODIRECT support to NFSv4 so opens don't fail - Fix trunking detection & cl_max_connect setting - Avoid pnfs_update_layout() livelocks - Don't keep retrying pNFS if the server replies with NFS4ERR_UNAVAILABLE * tag 'nfs-for-5.19-2' of git://git.linux-nfs.org/projects/anna/linux-nfs: NFSv4: Add FMODE_CAN_ODIRECT after successful open of a NFS4.x file sunrpc: set cl_max_connect when cloning an rpc_clnt pNFS: Avoid a live lock condition in pnfs_update_layout() pNFS: Don't keep retrying if the server replied NFS4ERR_LAYOUTUNAVAILABLE