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| author |   Dai Ngo <dai.ngo@oracle.com> | 2022-12-12 14:50:11 -0800 |
|---|---|---|
| committer |   Chuck Lever <chuck.lever@oracle.com> | 2022-12-14 10:11:54 -0500 |
| commit | 75333d48f92256a0dec91dbf07835e804fc411c0 (patch) | |
| tree | 60a5e5d9f7cb898684c31021c8ba1d1cc164b192 /net/unix/af_unix.c | |
| parent | nfsd: under NFSv4.1, fix double svc_xprt_put on rpc_create failure (diff) | |
| download | wireguard-linux-75333d48f92256a0dec91dbf07835e804fc411c0.tar.xz wireguard-linux-75333d48f92256a0dec91dbf07835e804fc411c0.zip | |
NFSD: fix use-after-free in __nfs42_ssc_open()
Problem caused by source's vfsmount being unmounted but remains
on the delayed unmount list. This happens when nfs42_ssc_open()
return errors.
Fixed by removing nfsd4_interssc_connect(), leave the vfsmount
for the laundromat to unmount when idle time expires.
We don't need to call nfs_do_sb_deactive when nfs42_ssc_open
return errors since the file was not opened so nfs_server->active
was not incremented. Same as in nfsd4_copy, if we fail to
launch nfsd4_do_async_copy thread then there's no need to
call nfs_do_sb_deactive
Reported-by: Xingyuan Mo <hdthky0@gmail.com>
Signed-off-by: Dai Ngo <dai.ngo@oracle.com>
Tested-by: Xingyuan Mo <hdthky0@gmail.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions