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orange-pi-ky
kernel/fs/nfs
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Roberto Sassu f749cb60a0 nfs: Fix KMSAN warning in decode_getfattr_attrs() 
commit dc270d7159 upstream.

Fix the following KMSAN warning:

CPU: 1 UID: 0 PID: 7651 Comm: cp Tainted: G    B
Tainted: [B]=BAD_PAGE
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009)
=====================================================
=====================================================
BUG: KMSAN: uninit-value in decode_getfattr_attrs+0x2d6d/0x2f90
 decode_getfattr_attrs+0x2d6d/0x2f90
 decode_getfattr_generic+0x806/0xb00
 nfs4_xdr_dec_getattr+0x1de/0x240
 rpcauth_unwrap_resp_decode+0xab/0x100
 rpcauth_unwrap_resp+0x95/0xc0
 call_decode+0x4ff/0xb50
 __rpc_execute+0x57b/0x19d0
 rpc_execute+0x368/0x5e0
 rpc_run_task+0xcfe/0xee0
 nfs4_proc_getattr+0x5b5/0x990
 __nfs_revalidate_inode+0x477/0xd00
 nfs_access_get_cached+0x1021/0x1cc0
 nfs_do_access+0x9f/0xae0
 nfs_permission+0x1e4/0x8c0
 inode_permission+0x356/0x6c0
 link_path_walk+0x958/0x1330
 path_lookupat+0xce/0x6b0
 filename_lookup+0x23e/0x770
 vfs_statx+0xe7/0x970
 vfs_fstatat+0x1f2/0x2c0
 __se_sys_newfstatat+0x67/0x880
 __x64_sys_newfstatat+0xbd/0x120
 x64_sys_call+0x1826/0x3cf0
 do_syscall_64+0xd0/0x1b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The KMSAN warning is triggered in decode_getfattr_attrs(), when calling
decode_attr_mdsthreshold(). It appears that fattr->mdsthreshold is not
initialized.

Fix the issue by initializing fattr->mdsthreshold to NULL in
nfs_fattr_init().

Cc: stable@vger.kernel.org # v3.5.x
Fixes: 88034c3d88 ("NFSv4.1 mdsthreshold attribute xdr")
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-14 13:19:37 +01:00
..
blocklayout
pNFS: Fix the pnfs block driver's calculation of layoutget size
2024-01-25 15:35:18 -08:00
filelayout
pNFS/filelayout: fixup pNfs allocation modes
2024-06-12 11:12:49 +02:00
flexfilelayout
nfs: fix panic when nfs4_ff_layout_prepare_ds() fails
2024-03-26 18:20:04 -04:00
cache_lib.c
…
cache_lib.h
…
callback_proc.c
nfs: convert to ctime accessor functions
2023-07-24 10:30:01 +02:00
callback_xdr.c
SUNRPC: Fix integer overflow in decode_rc_list()
2024-10-17 15:24:23 +02:00
callback.c
nfsd: stop setting ->pg_stats for unused stats
2024-08-19 06:04:23 +02:00
callback.h
…
client.c
NFSv4: Prevent NULL-pointer dereference in nfs42_complete_copies()
2024-10-17 15:24:23 +02:00
delegation.c
NFS: remove revoked delegation from server's delegation list
2024-11-08 16:28:21 +01:00
delegation.h
…
dir.c
nfs: don't invalidate dentries on transient errors
2024-07-25 09:50:45 +02:00
direct.c
nfs: drop the incorrect assertion in nfs_swap_rw()
2024-07-05 09:33:55 +02:00
dns_resolve.c
NFS: Move common includes outside ifdef
2023-08-24 13:24:15 -04:00
dns_resolve.h
…
export.c
nfsd: allow reaping files still under writeback
2023-04-26 09:04:59 -04:00
file.c
filemap: Fix errors in file.c
2023-08-24 13:24:15 -04:00
fs_context.c
nfs: keep server info for remounts
2024-06-12 11:12:47 +02:00
fscache.c
NFS: Fix nfs_netfs_issue_read() xarray locking for writeback interrupt
2024-03-26 18:20:03 -04:00
fscache.h
nfs: convert to ctime accessor functions
2023-07-24 10:30:01 +02:00
getroot.c
…
inode.c
nfs: Fix KMSAN warning in decode_getfattr_attrs()
2024-11-14 13:19:37 +01:00
internal.h
nfs: fix undefined behavior in nfs_block_bits()
2024-06-16 13:47:47 +02:00
io.c
…
iostat.h
NFS: Remove all NFSIOS_FSCACHE counters due to conversion to netfs API
2023-04-11 13:08:26 -04:00
Kconfig
NFS: Enable the READ_PLUS operation by default
2023-08-23 15:58:47 -04:00
Makefile
…
mount_clnt.c
…
namespace.c
fs: pass the request_mask to generic_fillattr
2023-08-09 08:56:36 +02:00
netns.h
nfs: make the rpc_stat per net namespace
2024-05-17 12:01:57 +02:00
nfs2super.c
…
nfs2xdr.c
NFS: Guard against READDIR loop when entry names exceed MAXNAMELEN
2023-08-30 11:08:27 -04:00
nfs3_fs.h
fs: drop unused posix acl handlers
2023-03-06 09:57:12 +01:00
nfs3acl.c
Merge tag 'mm-nonmm-stable-2023-04-27-16-01' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2023-04-27 19:57:00 -07:00
nfs3client.c
NFS/pNFS: Set the connect timeout for the pNFS flexfiles driver
2023-08-24 13:24:15 -04:00
nfs3proc.c
…
nfs3super.c
fs: drop unused posix acl handlers
2023-03-06 09:57:12 +01:00
nfs3xdr.c
NFS: Guard against READDIR loop when entry names exceed MAXNAMELEN
2023-08-30 11:08:27 -04:00
nfs4_fs.h
fs: Pass argument to fcntl_setlease as int
2023-07-10 14:36:11 +02:00
nfs4client.c
NFSv4.1 another fix for EXCHGID4_FLAG_USE_PNFS_DS for DS server
2024-08-03 08:53:54 +02:00
nfs4file.c
fs: Pass argument to fcntl_setlease as int
2023-07-10 14:36:11 +02:00
nfs4getroot.c
…
nfs4idmap.c
cred: Do not default to init_cred in prepare_kernel_cred()
2022-11-01 10:04:52 -07:00
nfs4idmap.h
…
nfs4namespace.c
…
nfs4proc.c
NFSv4: Fix clearing of layout segments in layoutreturn
2024-09-18 19:24:06 +02:00
nfs4renewd.c
…
nfs4session.c
…
nfs4session.h
…
nfs4state.c
NFSv4: Prevent NULL-pointer dereference in nfs42_complete_copies()
2024-10-17 15:24:23 +02:00
nfs4super.c
…
nfs4sysctl.c
nfs: simplify two-level sysctl registration for nfs4_cb_sysctls
2023-04-13 11:49:35 -07:00
nfs4trace.c
…
nfs4trace.h
nfs4trace: fix state manager flag printing
2023-02-14 15:43:57 -05:00
nfs4xdr.c
NFSv4.2: Fix a memory stomp in decode_attr_security_label
2022-11-27 22:09:59 -05:00
nfs42.h
NFSv4.2: fix listxattr maximum XDR buffer size
2024-03-26 18:20:02 -04:00
nfs42proc.c
NFSv4: Prevent NULL-pointer dereference in nfs42_complete_copies()
2024-10-17 15:24:23 +02:00
nfs42xattr.c
NFSv4.2: fix wrong shrinker_id
2023-06-19 15:10:45 -04:00
nfs42xdr.c
NFSv4.2: Rework scratch handling for READ_PLUS (again)
2023-08-23 15:58:47 -04:00
nfs.h
…
nfsroot.c
NFS: Fix an off by one in root_nfs_cat()
2024-03-26 18:20:03 -04:00
nfstrace.c
…
nfstrace.h
NFS: Remove fscache specific trace points and NFS_INO_FSCACHE bit
2023-04-11 13:08:27 -04:00
pagelist.c
nfs: Avoid flushing many pages with NFS_FILE_SYNC
2024-07-25 09:50:45 +02:00
pnfs_dev.c
NFSv4/pnfs: minor fix for cleanup path in nfs4_get_device_info
2023-08-24 13:24:15 -04:00
pnfs_nfs.c
NFSv4.1/pnfs: fix NFS with TLS in pnfs
2024-03-26 18:20:03 -04:00
pnfs.c
NFSv4: Fix clearing of layout segments in layoutreturn
2024-09-18 19:24:06 +02:00
pnfs.h
NFS: Convert buffered writes to use folios
2023-02-14 14:22:32 -05:00
proc.c
…
read.c
NFS: Read unlock folio on nfs_page_create_from_folio() error
2024-04-03 15:28:29 +02:00
super.c
NFSv3: only use NFS timeout for MOUNT when protocols are compatible
2024-11-14 13:19:30 +01:00
symlink.c
nfs: propagate readlink errors in nfs_symlink_filler
2024-07-25 09:50:44 +02:00
sysctl.c
nfs: simplify two-level sysctl registration for nfs_cb_sysctls
2023-04-13 11:49:35 -07:00
sysfs.c
NFS: Fix sysfs server name memory leak
2023-08-19 10:26:29 -04:00
sysfs.h
NFS: Add sysfs links to sunrpc clients for nfs_clients
2023-06-19 15:04:13 -04:00
unlink.c
NFS: Fix a race in nfs_call_unlink()
2022-11-27 22:10:00 -05:00
write.c
nfs: fix UAF in direct writes
2024-04-03 15:28:29 +02:00