Ksawlii/kernel_samsung_a53x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions
kernel_samsung_a53x/fs/nfsd
History
Tetsuo Handa 85fe1743c9 NFSD: unregister shrinker when nfsd_init_net() fails 
[ Upstream commit bd86c69dae65de30f6d47249418ba7889809e31a ]

syzbot is reporting UAF read at register_shrinker_prepared() [1], for
commit 7746b32f467b3813 ("NFSD: add shrinker to reap courtesy clients on
low memory condition") missed that nfsd4_leases_net_shutdown() from
nfsd_exit_net() is called only when nfsd_init_net() succeeded.
If nfsd_init_net() fails due to nfsd_reply_cache_init() failure,
register_shrinker() from nfsd4_init_leases_net() has to be undone
before nfsd_init_net() returns.

Link: https://syzkaller.appspot.com/bug?extid=ff796f04613b4c84ad89 [1]
Reported-by: syzbot <syzbot+ff796f04613b4c84ad89@syzkaller.appspotmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Fixes: 7746b32f467b3813 ("NFSD: add shrinker to reap courtesy clients on low memory condition")
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-19 12:28:25 +01:00
..
acl.h NFSD: add posix ACLs to struct nfsd_attrs 2024-11-19 12:28:04 +01:00
auth.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
auth.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
blocklayout.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
blocklayoutxdr.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
blocklayoutxdr.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cache.h nfsd: use DEFINE_SHOW_ATTRIBUTE to define nfsd_reply_cache_stats_fops 2024-11-19 12:28:24 +01:00
current_stateid.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
export.c nfsd: report per-export stats 2024-11-19 12:27:31 +01:00
export.h nfsd: report per-export stats 2024-11-19 12:27:31 +01:00
fault_inject.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
filecache.c nfsd: rework hashtable handling in nfsd_do_file_acquire 2024-11-19 12:28:25 +01:00
filecache.h nfsd: use DEFINE_SHOW_ATTRIBUTE to define nfsd_file_cache_stats_fops 2024-11-19 12:28:24 +01:00
flexfilelayout.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
flexfilelayoutxdr.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
flexfilelayoutxdr.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
idmap.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
Kconfig NFSD: Remove CONFIG_NFSD_V3 2024-11-19 12:27:54 +01:00
lockd.c Keep read and write fds with each nlm_file 2024-11-19 12:27:44 +01:00
Makefile NFSD: Remove CONFIG_NFSD_V3 2024-11-19 12:27:54 +01:00
netns.h NFSD: add shrinker to reap courtesy clients on low memory condition 2024-11-19 12:28:23 +01:00
nfs2acl.c SUNRPC: Parametrize how much of argsize should be zeroed 2024-11-19 12:28:23 +01:00
nfs3acl.c SUNRPC: Parametrize how much of argsize should be zeroed 2024-11-19 12:28:23 +01:00
nfs3proc.c NFSD: Refactor common code out of dirlist helpers 2024-11-19 12:28:23 +01:00
nfs3xdr.c NFSD: Clean up WRITE arg decoders 2024-11-19 12:28:23 +01:00
nfs4acl.c NFSD: add posix ACLs to struct nfsd_attrs 2024-11-19 12:28:04 +01:00
nfs4callback.c nfsd: make nfsd4_run_cb a bool return function 2024-11-19 12:28:24 +01:00
nfs4idmap.c NFSD: move from strlcpy with unused retval to strscpy 2024-11-19 12:28:21 +01:00
nfs4layouts.c NFSD: Add tracepoints to report NFSv4 callback completions 2024-11-19 12:28:22 +01:00
nfs4proc.c NFSD: Cap rsize_bop result based on send buffer size 2024-11-19 12:28:24 +01:00
nfs4recover.c nfsd: Propagate some error code returned by memdup_user() 2024-11-19 12:28:21 +01:00
nfs4state.c nfsd: extra checks when freeing delegation stateids 2024-11-19 12:28:24 +01:00
nfs4xdr.c NFSD: Clean up nfs4svc_encode_compoundres() 2024-11-19 12:28:23 +01:00
nfscache.c nfsd: use DEFINE_SHOW_ATTRIBUTE to define nfsd_reply_cache_stats_fops 2024-11-19 12:28:24 +01:00
nfsctl.c NFSD: unregister shrinker when nfsd_init_net() fails 2024-11-19 12:28:25 +01:00
nfsd.h NFSD: add shrinker to reap courtesy clients on low memory condition 2024-11-19 12:28:23 +01:00
nfsfh.c NFSD: Remove CONFIG_NFSD_V3 2024-11-19 12:27:54 +01:00
nfsfh.h NFSD: Remove CONFIG_NFSD_V3 2024-11-19 12:27:54 +01:00
nfsproc.c NFSD: Refactor common code out of dirlist helpers 2024-11-19 12:28:23 +01:00
nfssvc.c NFSD: move from strlcpy with unused retval to strscpy 2024-11-19 12:28:21 +01:00
nfsxdr.c NFSD: Clean up WRITE arg decoders 2024-11-19 12:28:23 +01:00
pnfs.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
state.h nfsd: make nfsd4_run_cb a bool return function 2024-11-19 12:28:24 +01:00
stats.c nfsd: use DEFINE_PROC_SHOW_ATTRIBUTE to define nfsd_proc_ops 2024-11-19 12:28:24 +01:00
stats.h nfsd: make nfsd_stats.th_cnt atomic_t 2024-11-19 12:27:50 +01:00
trace.c NFSD: Add SPDX header for fs/nfsd/trace.c 2024-11-19 12:27:20 +01:00
trace.h NFSD: Add a mechanism to wait for a DELEGRETURN 2024-11-19 12:28:22 +01:00
vfs.c NFSD: Make nfsd4_remove() wait before returning NFS4ERR_DELAY 2024-11-19 12:28:22 +01:00
vfs.h NFSD: drop fname and flen args from nfsd_create_locked() 2024-11-19 12:28:22 +01:00
xdr.h SUNRPC: Change return value type of .pc_encode 2024-11-19 12:27:48 +01:00
xdr3.h SUNRPC: Change return value type of .pc_encode 2024-11-19 12:27:48 +01:00
xdr4.h NFSD: Pack struct nfsd4_compoundres 2024-11-19 12:28:23 +01:00
xdr4cb.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00