linux/fs/afs
David Howells 1d0e850a49 afs: Fix cell removal
Fix cell removal by inserting a more final state than AFS_CELL_FAILED that
indicates that the cell has been unpublished in case the manager is already
requeued and will go through again.  The new AFS_CELL_REMOVED state will
just immediately leave the manager function.

Going through a second time in the AFS_CELL_FAILED state will cause it to
try to remove the cell again, potentially leading to the proc list being
removed.

Fixes: 989782dcdc ("afs: Overhaul cell database management")
Reported-by: syzbot+b994ecf2b023f14832c1@syzkaller.appspotmail.com
Reported-by: syzbot+0e0db88e1eb44a91ae8d@syzkaller.appspotmail.com
Reported-by: syzbot+2d0585e5efcd43d113c2@syzkaller.appspotmail.com
Reported-by: syzbot+1ecc2f9d3387f1d79d42@syzkaller.appspotmail.com
Reported-by: syzbot+18d51774588492bf3f69@syzkaller.appspotmail.com
Reported-by: syzbot+a5e4946b04d6ca8fa5f3@syzkaller.appspotmail.com
Suggested-by: Hillf Danton <hdanton@sina.com>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Hillf Danton <hdanton@sina.com>
2020-10-16 14:38:26 +01:00
..
addr_list.c afs: Use kfree_rcu() instead of casting kfree() to rcu_callback_t 2020-03-13 10:47:33 -07:00
afs_cm.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
afs_fs.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
afs_vl.h afs: Implement client support for the YFSVL.GetCellName RPC op 2020-06-04 15:37:57 +01:00
afs.h afs: Implement client support for the YFSVL.GetCellName RPC op 2020-06-04 15:37:57 +01:00
cache.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
callback.c afs: Fix the by-UUID server tree to allow servers with the same UUID 2020-06-04 15:37:57 +01:00
cell.c afs: Fix cell removal 2020-10-16 14:38:26 +01:00
cmservice.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
dir_edit.c afs: Remove set but not used variables 'before', 'after' 2019-11-21 20:36:00 +00:00
dir_silly.c afs: Fix silly rename 2020-06-16 22:00:28 +01:00
dir.c treewide: Remove uninitialized_var() usage 2020-07-16 12:35:15 -07:00
dynroot.c afs: Fix cell refcounting by splitting the usage counter 2020-10-16 14:38:22 +01:00
file.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
flock.c afs: Remove erroneous fallthough annotation 2020-08-27 14:33:01 -05:00
fs_operation.c afs: Fix key ref leak in afs_put_operation() 2020-08-20 10:41:45 -07:00
fs_probe.c rxrpc: Make rxrpc_kernel_get_srtt() indicate validity 2020-08-20 18:21:28 +01:00
fsclient.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
inode.c afs: Fix deadlock between writeback and truncate 2020-10-08 10:50:55 -07:00
internal.h afs: Fix cell removal 2020-10-16 14:38:26 +01:00
Kconfig docs: filesystems: fix renamed references 2020-04-20 15:45:22 -06:00
main.c afs: Fix rapid cell addition/removal by not using RCU on cells tree 2020-10-16 14:04:59 +01:00
Makefile afs: Detect cell aliases 1 - Cells with root volumes 2020-06-04 15:37:57 +01:00
misc.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
mntpt.c afs: Fix cell refcounting by splitting the usage counter 2020-10-16 14:38:22 +01:00
proc.c afs: Fix cell refcounting by splitting the usage counter 2020-10-16 14:38:22 +01:00
protocol_uae.h afs: Add support for the UAE error table 2019-06-28 18:37:53 +01:00
protocol_yfs.h afs: Implement client support for the YFSVL.GetCellName RPC op 2020-06-04 15:37:57 +01:00
rotate.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
rxrpc.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
security.c treewide: Remove uninitialized_var() usage 2020-07-16 12:35:15 -07:00
server_list.c afs: Reorganise volume and server trees to be rooted on the cell 2020-06-04 15:37:57 +01:00
server.c afs: Fix hang on rmmod due to outstanding timer 2020-06-20 12:01:58 -07:00
super.c afs: Fix cell refcounting by splitting the usage counter 2020-10-16 14:38:22 +01:00
vl_alias.c afs: Fix cell refcounting by splitting the usage counter 2020-10-16 14:38:22 +01:00
vl_list.c afs: Don't use VL probe running state to make decisions outside probe code 2020-08-20 18:21:28 +01:00
vl_probe.c afs: Don't use VL probe running state to make decisions outside probe code 2020-08-20 18:21:28 +01:00
vl_rotate.c afs: Fix cell refcounting by splitting the usage counter 2020-10-16 14:38:22 +01:00
vlclient.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
volume.c afs: Fix cell refcounting by splitting the usage counter 2020-10-16 14:38:22 +01:00
write.c afs: Fix deadlock between writeback and truncate 2020-10-08 10:50:55 -07:00
xattr.c afs: Build an abstraction around an "operation" concept 2020-06-04 15:37:17 +01:00
xdr_fs.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36 2019-05-24 17:27:11 +02:00
yfsclient.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00