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linux-hardened/fs/btrfs
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David Sterba ac0c7cf8be btrfs: fix crash when tracepoint arguments are freed by wq callbacks 
Enabling btrfs tracepoints leads to instant crash, as reported. The wq
callbacks could free the memory and the tracepoints started to
dereference the members to get to fs_info.

The proposed fix https://marc.info/?l=linux-btrfs&m=148172436722606&w=2
removed the tracepoints but we could preserve them by passing only the
required data in a safe way.

Fixes: bc074524e1 ("btrfs: prefix fsid to all trace events")
CC: stable@vger.kernel.org # 4.8+
Reported-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2017-01-09 11:24:50 +01:00
..
tests btrfs: pull node/sector/stripe sizes out of root and into fs_info 2016-12-06 16:06:58 +01:00
acl.c posix_acl: Clear SGID bit when setting file permissions 2016-09-22 10:55:32 +02:00
async-thread.c btrfs: fix crash when tracepoint arguments are freed by wq callbacks 2017-01-09 11:24:50 +01:00
async-thread.h btrfs: limit async_work allocation and worker func duration 2016-12-13 11:01:30 -08:00
backref.c btrfs: remove root parameter from transaction commit/end routines 2016-12-06 16:07:00 +01:00
backref.h
btrfs_inode.h Btrfs: add a flags field to btrfs_fs_info 2016-09-26 17:59:49 +02:00
check-integrity.c btrfs: take an fs_info directly when the root is not used otherwise 2016-12-06 16:06:59 +01:00
check-integrity.h btrfs: take an fs_info directly when the root is not used otherwise 2016-12-06 16:06:59 +01:00
compression.c btrfs: take an fs_info directly when the root is not used otherwise 2016-12-06 16:06:59 +01:00
compression.h btrfs: use bio iterators for the decompression handlers 2016-11-30 13:45:19 +01:00
ctree.c btrfs: take an fs_info directly when the root is not used otherwise 2016-12-06 16:06:59 +01:00
ctree.h Btrfs: don't WARN() in btrfs_transaction_abort() for IO errors 2016-12-09 06:00:28 -08:00
dedupe.h btrfs: expand cow_file_range() to support in-band dedup and subpage-blocksize 2016-07-26 13:52:25 +02:00
delayed-inode.c btrfs: limit async_work allocation and worker func duration 2016-12-13 11:01:30 -08:00
delayed-inode.h btrfs: take an fs_info directly when the root is not used otherwise 2016-12-06 16:06:59 +01:00
delayed-ref.c btrfs: improve delayed refs iterations 2016-11-30 13:45:21 +01:00
delayed-ref.h Merge branch 'for-chris-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/fdmanana/linux into for-linus-4.10 2016-12-13 09:14:42 -08:00
dev-replace.c btrfs: remove root parameter from transaction commit/end routines 2016-12-06 16:07:00 +01:00
dev-replace.h btrfs: take an fs_info directly when the root is not used otherwise 2016-12-06 16:06:59 +01:00
dir-item.c btrfs: take an fs_info directly when the root is not used otherwise 2016-12-06 16:06:59 +01:00
disk-io.c Merge branch 'for-chris-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/fdmanana/linux into for-linus-4.10 2016-12-13 09:14:42 -08:00
disk-io.h btrfs: take an fs_info directly when the root is not used otherwise 2016-12-06 16:06:59 +01:00
export.c btrfs: root->fs_info cleanup, add fs_info convenience variables 2016-12-06 16:06:59 +01:00
export.h
extent-tree.c btrfs: opencode chunk locking, remove helpers 2016-12-06 16:07:00 +01:00
extent_io.c btrfs: remove root parameter from transaction commit/end routines 2016-12-06 16:07:00 +01:00
extent_io.h btrfs: take an fs_info directly when the root is not used otherwise 2016-12-06 16:06:59 +01:00
extent_map.c btrfs: Fix slab accounting flags 2016-07-26 13:52:25 +02:00
extent_map.h btrfs: cleanup, stop casting for extent_map->lookup everywhere 2016-01-15 19:22:28 +01:00
file-item.c btrfs: take an fs_info directly when the root is not used otherwise 2016-12-06 16:06:59 +01:00
file.c Merge branch 'for-chris-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/fdmanana/linux into for-linus-4.10 2016-12-13 09:14:42 -08:00
free-space-cache.c btrfs: opencode chunk locking, remove helpers 2016-12-06 16:07:00 +01:00
free-space-cache.h btrfs: take an fs_info directly when the root is not used otherwise 2016-12-06 16:06:59 +01:00
free-space-tree.c btrfs: remove root parameter from transaction commit/end routines 2016-12-06 16:07:00 +01:00
free-space-tree.h Btrfs: implement the free space B-tree 2015-12-17 12:16:47 -08:00
hash.c btrfs: advertise which crc32c implementation is being used at module load 2016-06-06 14:08:28 +02:00
hash.h btrfs: advertise which crc32c implementation is being used at module load 2016-06-06 14:08:28 +02:00
inode-item.c btrfs: take an fs_info directly when the root is not used otherwise 2016-12-06 16:06:59 +01:00
inode-map.c btrfs: take an fs_info directly when the root is not used otherwise 2016-12-06 16:06:59 +01:00
inode-map.h Btrfs: Initialize btrfs_root->highest_objectid when loading tree root and subvolume roots 2016-01-15 19:25:02 +01:00
inode.c Revert "Btrfs: adjust len of writes if following a preallocated extent" 2016-12-11 15:27:15 -08:00
ioctl.c btrfs: remove root parameter from transaction commit/end routines 2016-12-06 16:07:00 +01:00
Kconfig
locking.c btrfs: cleanup, remove stray return statements 2016-01-07 14:30:52 +01:00
locking.h
lzo.c btrfs: use bio iterators for the decompression handlers 2016-11-30 13:45:19 +01:00
Makefile Btrfs: add free space tree sanity tests 2015-12-17 12:16:47 -08:00
math.h
ordered-data.c btrfs: root->fs_info cleanup, add fs_info convenience variables 2016-12-06 16:06:59 +01:00
ordered-data.h btrfs: pull node/sector/stripe sizes out of root and into fs_info 2016-12-06 16:06:58 +01:00
orphan.c
print-tree.c btrfs: take an fs_info directly when the root is not used otherwise 2016-12-06 16:06:59 +01:00
print-tree.h btrfs: take an fs_info directly when the root is not used otherwise 2016-12-06 16:06:59 +01:00
props.c btrfs: take an fs_info directly when the root is not used otherwise 2016-12-06 16:06:59 +01:00
props.h
qgroup.c Merge branch 'for-chris-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/fdmanana/linux into for-linus-4.10 2016-12-13 09:14:42 -08:00
qgroup.h btrfs: take an fs_info directly when the root is not used otherwise 2016-12-06 16:06:59 +01:00
raid56.c btrfs: take an fs_info directly when the root is not used otherwise 2016-12-06 16:06:59 +01:00
raid56.h btrfs: take an fs_info directly when the root is not used otherwise 2016-12-06 16:06:59 +01:00
rcu-string.h
reada.c btrfs: take an fs_info directly when the root is not used otherwise 2016-12-06 16:06:59 +01:00
relocation.c Merge branch 'for-chris-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/fdmanana/linux into for-linus-4.10 2016-12-13 09:14:42 -08:00
root-tree.c btrfs: remove root parameter from transaction commit/end routines 2016-12-06 16:07:00 +01:00
scrub.c btrfs: remove root parameter from transaction commit/end routines 2016-12-06 16:07:00 +01:00
send.c btrfs: remove root parameter from transaction commit/end routines 2016-12-06 16:07:00 +01:00
send.h Btrfs: use linux/sizes.h to represent constants 2016-01-07 14:38:02 +01:00
struct-funcs.c btrfs: fix string and comment grammatical issues and typos 2016-05-25 22:35:14 +02:00
super.c btrfs: remove root parameter from transaction commit/end routines 2016-12-06 16:07:00 +01:00
sysfs.c btrfs: convert printk(KERN_* to use pr_* calls 2016-09-26 18:08:44 +02:00
sysfs.h btrfs: sysfs: introduce helper for syncing bits with sysfs files 2016-01-21 18:50:40 +01:00
transaction.c btrfs: remove root parameter from transaction commit/end routines 2016-12-06 16:07:00 +01:00
transaction.h btrfs: remove root parameter from transaction commit/end routines 2016-12-06 16:07:00 +01:00
tree-defrag.c Btrfs: fix locking bugs when defragging leaves 2015-12-18 02:51:32 +00:00
tree-log.c Merge branch 'for-chris-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/fdmanana/linux into for-linus-4.10 2016-12-13 09:14:42 -08:00
tree-log.h Btrfs: fix lockdep warning on deadlock against an inode's log mutex 2016-08-25 03:58:32 -07:00
ulist.c btrfs: fix string and comment grammatical issues and typos 2016-05-25 22:35:14 +02:00
ulist.h
uuid-tree.c btrfs: remove root parameter from transaction commit/end routines 2016-12-06 16:07:00 +01:00
volumes.c btrfs: opencode chunk locking, remove helpers 2016-12-06 16:07:00 +01:00
volumes.h btrfs: opencode chunk locking, remove helpers 2016-12-06 16:07:00 +01:00
xattr.c btrfs: remove root parameter from transaction commit/end routines 2016-12-06 16:07:00 +01:00
xattr.h btrfs: Switch to generic xattr handlers 2016-05-17 19:17:09 -04:00
zlib.c btrfs: use bio iterators for the decompression handlers 2016-11-30 13:45:19 +01:00