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Suraj Jitindar Singh df3da4ea5a ext4: fix potential race between s_group_info online resizing and access 
During an online resize an array of pointers to s_group_info gets replaced
so it can get enlarged. If there is a concurrent access to the array in
ext4_get_group_info() and this memory has been reused then this can lead to
an invalid memory access.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=206443
Link: https://lore.kernel.org/r/20200221053458.730016-3-tytso@mit.edu
Signed-off-by: Suraj Jitindar Singh <surajjs@amazon.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Balbir Singh <sblbir@amazon.com>
Cc: stable@kernel.org
2020-02-21 00:38:12 -05:00
..
acl.c
ext4: compare old and new mode before setting update_mode flag
2018-12-10 00:22:38 -05:00
acl.h
ext4: fix up remaining files with SPDX cleanups
2017-12-17 22:00:59 -05:00
balloc.c
ext4: fix potential race between online resizing and write operations
2020-02-21 00:37:09 -05:00
bitmap.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
block_validity.c
ext4: add cond_resched() to ext4_protect_reserved_inode
2020-02-13 11:56:26 -05:00
dir.c
ext4: fix checksum errors with indexed dirs
2020-02-13 11:56:19 -05:00
ext4_extents.h
ext4: make some functions static in extents.c
2020-01-17 16:24:54 -05:00
ext4_jbd2.c
ext4: uninline ext4_inode_journal_mode()
2020-01-17 16:24:52 -05:00
ext4_jbd2.h
ext4: uninline ext4_inode_journal_mode()
2020-01-17 16:24:52 -05:00
ext4.h
ext4: fix potential race between s_group_info online resizing and access
2020-02-21 00:38:12 -05:00
extents_status.c
ext4: use percpu_counters for extent_status cache hits/misses
2019-08-28 11:19:23 -04:00
extents_status.h
ext4: fix extent_status trace points
2020-01-25 02:03:03 -05:00
extents.c
ext4: fix extent_status fragmentation for plain files
2020-01-23 12:02:15 -05:00
file.c
ext4: Optimize ext4 DIO overwrites
2019-12-26 11:57:18 -05:00
fsmap.c
ext4: fix miscellaneous sparse warnings
2019-05-12 04:49:47 -04:00
fsmap.h
ext4: fix up remaining files with SPDX cleanups
2017-12-17 22:00:59 -05:00
fsync.c
ext4: update ext4_sync_file() to not use __generic_file_fsync()
2019-11-05 11:31:40 -05:00
hash.c
ext4: fix kernel oops caused by spurious casefold flag
2019-09-03 01:43:17 -04:00
ialloc.c
ext4: simulate various I/O and checksum errors when reading metadata
2019-12-26 11:28:31 -05:00
indirect.c
ext4: remove ext4_{ind,ext}_calc_metadata_amount()
2020-01-17 16:24:54 -05:00
inline.c
ext4,jbd2: fix comment and code style
2020-01-25 02:24:53 -05:00
inode-test.c
kunit: allow kunit tests to be loaded as a module
2020-01-09 16:42:29 -07:00
inode.c
ext4: fix a data race in EXT4_I(inode)->i_disksize
2020-02-19 23:17:02 -05:00
ioctl.c
ext4: Add EXT4_IOC_FSGETXATTR/EXT4_IOC_FSSETXATTR to compat_ioctl
2020-01-17 16:24:55 -05:00
Kconfig
This merge window, we've added some performance improvements in how we
2020-01-30 15:17:05 -08:00
Makefile
kunit: allow kunit tests to be loaded as a module
2020-01-09 16:42:29 -07:00
mballoc.c
ext4: fix potential race between s_group_info online resizing and access
2020-02-21 00:38:12 -05:00
mballoc.h
ext4: fix up remaining files with SPDX cleanups
2017-12-17 22:00:59 -05:00
migrate.c
ext4: Reserve revoke credits for freed blocks
2019-11-05 16:00:49 -05:00
mmp.c
ext4: don't assume that mmp_nodename/bdevname have NUL
2020-02-13 11:53:10 -05:00
move_extent.c
ext4: use jbd2_inode dirty range scoping
2019-06-20 17:26:26 -04:00
namei.c
ext4: add cond_resched() to __ext4_find_entry()
2020-02-19 23:53:52 -05:00
page-io.c
ext4: fix deadlock allocating crypto bounce page from mempool
2020-01-17 16:24:54 -05:00
readpage.c
ext4: remove unneeded check for error allocating bio_post_read_ctx
2020-01-17 16:24:54 -05:00
resize.c
ext4: fix potential race between online resizing and write operations
2020-02-21 00:37:09 -05:00
super.c
ext4: fix potential race between online resizing and write operations
2020-02-21 00:37:09 -05:00
symlink.c
ext4: switch to fscrypt_get_symlink()
2018-01-11 22:10:40 -05:00
sysfs.c
ext4: export information about first/last errors via /sys/fs/ext4/<dev>
2019-12-26 11:29:10 -05:00
truncate.h
ext4: handle layout changes to pinned DAX mappings
2018-07-29 17:00:22 -04:00
verity.c
fs-verity: implement readahead of Merkle tree pages
2020-01-14 13:27:32 -08:00
xattr_security.c
ext4: use XATTR_CREATE in ext4_initxattrs()
2018-05-10 11:52:14 -04:00
xattr_trusted.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
xattr_user.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
xattr.c
ext4: drop ext4_kvmalloc()
2020-01-17 16:24:55 -05:00
xattr.h
ext4: add extra checks to ext4_xattr_block_get()
2018-03-30 20:04:11 -04:00