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linux/fs/afs
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David Howells 9efcc4a129 afs: Fix unpinned address list during probing 
When it's probing all of a fileserver's interfaces to find which one is
best to use, afs_do_probe_fileserver() takes a lock on the server record
and notes the pointer to the address list.

It doesn't, however, pin the address list, so as soon as it drops the
lock, there's nothing to stop the address list from being freed under
us.

Fix this by taking a ref on the address list inside the locked section
and dropping it at the end of the function.

Fixes: 3bf0fb6f33 ("afs: Probe multiple fileservers simultaneously")
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Marc Dionne <marc.dionne@auristor.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-03-26 16:04:29 -07:00
..
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 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
afs.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
cache.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
callback.c afs: Fix possible assert with callbacks from yfs servers 2019-11-22 14:19:26 -08:00
cell.c afs: Fix characters allowed into cell names 2020-01-26 08:54:04 -08:00
cmservice.c afs: Fix handling of an abort from a service handler 2020-03-13 23:04:35 +00:00
dir_edit.c afs: Remove set but not used variables 'before', 'after' 2019-11-21 20:36:00 +00:00
dir_silly.c fsnotify: move fsnotify_nameremove() hook out of d_delete() 2019-06-20 14:47:44 +02:00
dir.c afs: Fix afs_lookup() to not clobber the version on a new dentry 2020-01-14 09:40:06 -08:00
dynroot.c afs: Fix creation calls in the dynamic root to fail with EOPNOTSUPP 2019-12-11 17:47:51 +00:00
file.c afs: Rename desc -> req in afs_fetch_data() 2019-11-21 09:12:17 +00:00
flock.c fs: afs: Use pr_warn instead of pr_warning 2019-10-18 15:01:55 +02:00
fs_probe.c afs: Fix unpinned address list during probing 2020-03-26 16:04:29 -07:00
fsclient.c afs: Introduce an afs_get_read() refcount helper 2019-11-21 09:12:17 +00:00
inode.c Printk changes for 5.5 2019-11-25 19:40:40 -08:00
internal.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-03-25 13:58:05 -07:00
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
main.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
Makefile afs: do not send list of client addresses 2019-06-02 18:06:26 -07:00
misc.c AFS development 2019-07-10 20:55:33 -07:00
mntpt.c afs: Fix mountpoint parsing 2019-12-11 16:56:54 +00:00
proc.c afs: Show volume name in /proc/net/afs/<cell>/volumes 2019-12-11 17:48:20 +00:00
protocol_uae.h afs: Add support for the UAE error table 2019-06-28 18:37:53 +01:00
protocol_yfs.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36 2019-05-24 17:27:11 +02:00
rotate.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36 2019-05-24 17:27:11 +02:00
rxrpc.c afs: Fix client call Rx-phase signal handling 2020-03-13 23:04:35 +00:00
security.c afs: Support RCU pathwalk 2019-09-02 11:43:54 +01:00
server_list.c AFS development 2019-07-10 20:55:33 -07:00
server.c afs: Fix afs_find_server lookups for ipv4 peers 2019-12-09 15:04:43 +00:00
super.c fs_parse: fold fs_parameter_desc/fs_parameter_spec 2020-02-07 14:48:37 -05:00
vl_list.c fs/afs: Replace rcu_swap_protected() with rcu_replace_pointer() 2019-10-30 08:44:27 -07:00
vl_probe.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36 2019-05-24 17:27:11 +02:00
vl_rotate.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36 2019-05-24 17:27:11 +02:00
vlclient.c afs: Switch the naming of call->iter and call->_iter 2019-11-21 09:12:17 +00:00
volume.c afs: remove unused variable 'afs_voltypes' 2019-09-02 11:43:54 +01:00
write.c AFS development 2019-07-10 20:55:33 -07:00
xattr.c afs: xattr: use scnprintf 2019-11-21 09:12:17 +00:00
xdr_fs.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36 2019-05-24 17:27:11 +02:00
yfsclient.c AFS development 2019-11-30 10:57:22 -08:00