freebsd-dev/sys/fs/nfs
Rick Macklem ef4edb70c9 nfsd: Add a sanity check for Owner/OwnerGroup string length
Robert Morris reported that, if a client sends an absurdly
large Owner/OwnerGroup string, the kernel malloc() for the
large size string can block forever.

This patch adds a sanity limit for Owner/OwnerGroup string
length.  Since the RFCs do not specify any limit and FreeBSD
can handle a group name greater than 1Kbyte, the limit is
set at a generous 10Kbytes.

Reported by:	rtm@lcs.mit.edu
PR:	260546
MFC after:	2 weeks
2022-05-04 13:58:22 -07:00
..
nfs_commonacl.c nfsd: Do not accept audit/alarm ACEs for the NFSv4 server 2022-01-11 09:40:07 -08:00
nfs_commonkrpc.c nfscl: Sanity check the Sequence slotid in reply 2021-11-27 15:02:04 -08:00
nfs_commonport.c nfscl: Add support for a NFSv4 AppendWrite RPC 2022-04-05 08:11:37 -07:00
nfs_commonsubs.c nfsd: Add a sanity check for Owner/OwnerGroup string length 2022-05-04 13:58:22 -07:00
nfs_var.h nfscl: Add support for a NFSv4 AppendWrite RPC 2022-04-30 13:49:23 -07:00
nfs.h nfsd: Add a sanity check for Owner/OwnerGroup string length 2022-05-04 13:58:22 -07:00
nfscl.h nfsv4 client: do the BindConnectionToSession as required 2021-04-11 14:34:57 -07:00
nfsclstate.h nfscl: Do pNFS layout return_on_close synchronously 2021-10-31 16:31:31 -07:00
nfsdport.h Do not copy vp into f_data for DTYPE_VNODE files. 2020-09-15 21:55:21 +00:00
nfskpiport.h Remove vfs_statfs and vnode_mount macros from NFS 2020-06-17 16:20:19 +00:00
nfsm_subs.h fs: clean up empty lines in .c and .h files 2020-09-01 21:18:40 +00:00
nfsport.h nfscl: Clean up the code by removing unused arguments 2022-04-13 07:43:13 -07:00
nfsproto.h Unbreak the build: Also define NFSV42_OLDNPROCS here. 2022-04-05 11:54:20 -06:00
nfsrvcache.h Replace all instances of the typedef mbuf_t with "struct mbuf *". 2020-04-17 21:17:51 +00:00
nfsrvstate.h nfsd: Fix the NFSv4.2 pNFS MDS server for NFSERR_NOSPC via LayoutError 2021-11-08 15:58:00 -08:00
nfsv4_errstr.h Add missing comma in nfsv4_errstr 2020-01-13 21:49:27 +00:00
rpcv2.h fs: clean up empty lines in .c and .h files 2020-09-01 21:18:40 +00:00
xdr_subs.h nfs: don't truncate directory cookies to 32-bits in the NFS server 2021-12-15 20:54:57 -07:00