torvalds/linux
torvalds/linux
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Code
84e90b0b51
linux/fs/hfs
History
Pan Bian ce96a407ad hfs: do not free node before using 
hfs_bmap_free() frees the node via hfs_bnode_put(node).  However, it
then reads node->this when dumping error message on an error path, which
may result in a use-after-free bug.  This patch frees the node only when
it is never again used.

Link: http://lkml.kernel.org/r/1542963889-128825-1-git-send-email-bianpan2016@163.com
Fixes: a1185ffa2fc ("HFS rewrite")
Signed-off-by: Pan Bian <bianpan2016@163.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Joe Perches <joe@perches.com>
Cc: Ernesto A. Fernandez <ernesto.mnd.fernandez@gmail.com>
Cc: Viacheslav Dubeyko <slava@dubeyko.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-11-30 14:56:14 -08:00
..
attr.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
bfind.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
bitmap.c hfs/hfsplus: convert dprint to hfs_dbg 2013-04-30 17:04:05 -07:00
bnode.c hfs/hfsplus: clean up unused variables in bnode.c 2017-11-17 16:10:03 -08:00
brec.c hfs: fix BUG on bnode parent update 2018-10-31 08:54:13 -07:00
btree.c hfs: do not free node before using 2018-11-30 14:56:14 -08:00
btree.h hfs: prevent btree data loss on ENOSPC 2018-10-31 08:54:13 -07:00
catalog.c hfs: prevent btree data loss on ENOSPC 2018-10-31 08:54:13 -07:00
dir.c hfs: use d_splice_alias() 2018-05-22 14:27:59 -04:00
extent.c fs/hfs/extent.c: fix array out of bounds read of array extent 2018-10-31 08:54:13 -07:00
hfs_fs.h Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
hfs.h
inode.c hfs: update timestamp on truncate() 2018-10-31 08:54:13 -07:00
Kconfig fs/hfs: remove depends on CONFIG_EXPERIMENTAL 2013-01-21 14:39:05 -08:00
Makefile
mdb.c Rename superblock flags (MS_xyz -> SB_xyz) 2017-11-27 13:05:09 -08:00
part_tbl.c
string.c get rid of 'parent' argument of ->d_compare() 2016-07-31 16:37:25 -04:00
super.c Rename superblock flags (MS_xyz -> SB_xyz) 2017-11-27 13:05:09 -08:00
sysdep.c VFS: normal filesystems (and lustre): d_inode() annotations 2015-04-15 15:06:57 -04:00
trans.c qstr: constify instances in hfs 2016-07-20 23:30:06 -04:00