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Denys Vlasenko 49ae4d4b11 coredump: add a new elf note with siginfo of the signal 
Existing PRSTATUS note contains only si_signo, si_code, si_errno fields
from the siginfo of the signal which caused core to be dumped.

There are tools which try to analyze crashes for possible security
implications, and they want to use, among other data, si_addr field from
the SIGSEGV.

This patch adds a new elf note, NT_SIGINFO, which contains the complete
siginfo_t of the signal which killed the process.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Cc: Amerigo Wang <amwang@redhat.com>
Cc: "Jonathan M. Foote" <jmfoote@cert.org>
Cc: Roland McGrath <roland@hack.frob.com>
Cc: Pedro Alves <palves@redhat.com>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2012-10-06 03:05:16 +09:00
..
9p Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
adfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
affs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
afs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
autofs4 make get_file() return its argument 2012-09-26 21:10:25 -04:00
befs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
bfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
btrfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
cachefiles fs: cachefiles: add support for large files in filesystem caching 2012-07-30 17:25:21 -07:00
ceph fs: push rcu_barrier() from deactivate_locked_super() to filesystems 2012-10-02 21:35:55 -04:00
cifs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
coda fs: push rcu_barrier() from deactivate_locked_super() to filesystems 2012-10-02 21:35:55 -04:00
configfs userns: Convert configfs to use kuid and kgid where appropriate 2012-09-18 01:01:37 -07:00
cramfs userns: Convert cramfs to use kuid/kgid where appropriate 2012-09-21 03:13:08 -07:00
debugfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2012-10-02 11:11:09 -07:00
devpts VFS: Pass mount flags to sget() 2012-07-14 16:38:34 +04:00
dlm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2012-10-02 13:38:27 -07:00
ecryptfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
efs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
exofs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
exportfs switch dentry_open() to struct path, make it grab references itself 2012-07-23 00:01:29 +04:00
ext2 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
ext3 Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs 2012-10-04 09:14:01 -07:00
ext4 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
fat fat: simplify writeback_inode() 2012-10-06 03:05:12 +09:00
freevxfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
fscache
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fuse fs: push rcu_barrier() from deactivate_locked_super() to filesystems 2012-10-02 21:35:55 -04:00
gfs2 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2012-10-02 11:11:09 -07:00
hfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
hfsplus Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
hostfs userns: Convert hostfs to use kuid and kgid where appropriate 2012-09-21 03:13:23 -07:00
hpfs hpfs: convert to use leXX_add_cpu() 2012-10-06 03:05:08 +09:00
hppfs switch dentry_open() to struct path, make it grab references itself 2012-07-23 00:01:29 +04:00
hugetlbfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
isofs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
jbd jbd: Fix assertion failure in commit code due to lacking transaction credits 2012-09-12 15:52:03 +02:00
jbd2 The following are all bug fixes and regressions. The most notable are 2012-08-17 08:04:47 -07:00
jffs2 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
jfs JFS TRIM support and some minor fixes 2012-10-03 08:48:21 -07:00
lockd close the race in nlmsvc_free_block() 2012-09-22 20:48:20 -04:00
logfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
minix Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
ncpfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
nfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
nfs_common
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nfsd Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
nilfs2 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
nls nls: fix (and rename) mac NLS table files and config options 2012-06-01 19:51:22 -07:00
notify switch simple cases of fget_light to fdget 2012-09-26 22:20:08 -04:00
ntfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
ocfs2 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
omfs userns: Convert omfs to use kuid and kgid where appropriate 2012-09-21 03:13:16 -07:00
openpromfs fs: push rcu_barrier() from deactivate_locked_super() to filesystems 2012-10-02 21:35:55 -04:00
proc coredump: use SUID_DUMPABLE_ENABLED rather than hardcoded 1 2012-10-06 03:05:16 +09:00
pstore pstore/ram: Make tracing log versioned 2012-07-17 16:48:09 -07:00
qnx4 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
qnx6 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
quota Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2012-10-02 11:11:09 -07:00
ramfs don't pass nameidata to ->create() 2012-07-14 16:34:47 +04:00
reiserfs Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs 2012-10-04 09:14:01 -07:00
romfs fs: push rcu_barrier() from deactivate_locked_super() to filesystems 2012-10-02 21:35:55 -04:00
squashfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
sysfs sysfs: Fix comment typo "sysf_create_link". 2012-09-04 16:11:31 -07:00
sysv Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
ubifs No big changes for 3.7 in UBIFS: 2012-10-02 20:47:48 -07:00
udf Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs 2012-10-04 09:14:01 -07:00
ufs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
xfs xfs: update for 3.7-rc1 2012-10-02 20:42:58 -07:00
Kconfig
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Kconfig.binfmt coredump: make core dump functionality optional 2012-10-06 03:05:15 +09:00
Makefile coredump: make core dump functionality optional 2012-10-06 03:05:15 +09:00
aio.c aio: now fput() is OK from interrupt context; get rid of manual delayed __fput() 2012-07-22 23:57:59 +04:00
anon_inodes.c
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attr.c ima: add inode_post_setattr call 2012-09-07 14:57:46 -04:00
bad_inode.c don't pass nameidata to ->create() 2012-07-14 16:34:47 +04:00
binfmt_aout.c coredump: pass siginfo_t* to do_coredump() and below, not merely signr 2012-10-06 03:05:16 +09:00
binfmt_elf.c coredump: add a new elf note with siginfo of the signal 2012-10-06 03:05:16 +09:00
binfmt_elf_fdpic.c coredump: pass siginfo_t* to do_coredump() and below, not merely signr 2012-10-06 03:05:16 +09:00
binfmt_em86.c
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binfmt_flat.c coredump: pass siginfo_t* to do_coredump() and below, not merely signr 2012-10-06 03:05:16 +09:00
binfmt_misc.c
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binfmt_script.c
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binfmt_som.c
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bio-integrity.c
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bio.c Merge branch 'for-linus' of git://git.kernel.dk/linux-block 2012-08-25 11:36:43 -07:00
block_dev.c fs/block-dev.c:fix performance regression in O_DIRECT writes to md block devices 2012-08-02 09:50:39 +02:00
buffer.c block: replace __getblk_slow misfix by grow_dev_page fix 2012-08-23 12:17:36 +02:00
char_dev.c
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compat.c compat: fs: Generic compat_sys_sendfile implementation 2012-10-02 21:35:55 -04:00
compat_binfmt_elf.c coredump: add a new elf note with siginfo of the signal 2012-10-06 03:05:16 +09:00
compat_ioctl.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
coredump.c coredump: pass siginfo_t* to do_coredump() and below, not merely signr 2012-10-06 03:05:16 +09:00
coredump.h coredump: update coredump-related headers 2012-10-06 03:05:15 +09:00
dcache.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
dcookies.c
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direct-io.c block: move down direct IO plugging 2012-08-09 15:23:09 +02:00
drop_caches.c
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eventfd.c eventfd: change int to __u64 in eventfd_signal() 2012-05-31 17:49:32 -07:00
eventpoll.c epoll: support for disabling items, and a self-test app 2012-10-06 03:05:00 +09:00
exec.c coredump: use SUID_DUMPABLE_ENABLED rather than hardcoded 1 2012-10-06 03:05:16 +09:00
fcntl.c fcntl: fix misannotations 2012-09-26 22:20:20 -04:00
fhandle.c switch simple cases of fget_light to fdget 2012-09-26 22:20:08 -04:00
fifo.c fifo: Do not restart open() if it already found a partner 2012-07-16 08:33:14 -07:00
file.c export fget_light 2012-09-26 21:10:06 -04:00
file_table.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2012-10-02 21:38:48 -07:00
filesystems.c
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fs-writeback.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-10-01 09:06:36 -07:00
fs_struct.c get rid of ->mnt_longterm 2012-07-14 16:32:47 +04:00
generic_acl.c userns: Pass a userns parameter into posix_acl_to_xattr and posix_acl_from_xattr 2012-09-18 01:01:35 -07:00
inode.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-08-01 10:26:23 -07:00
internal.h fs: Add freezing handling to mnt_want_write() / mnt_drop_write() 2012-07-31 09:40:38 +04:00
ioctl.c switch simple cases of fget_light to fdget 2012-09-26 22:20:08 -04:00
ioprio.c Merge branch 'for-3.5/core' of git://git.kernel.dk/linux-block 2012-05-30 08:52:42 -07:00
libfs.c vfs: fix kerneldoc for generic_fh_to_parent() 2012-09-05 10:59:30 +02:00
locks.c switch simple cases of fget_light to fdget 2012-09-26 22:20:08 -04:00
mbcache.c
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mount.h get rid of magic in proc_namespace.c 2012-07-14 16:32:48 +04:00
mpage.c
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namei.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
namespace.c do_add_mount()/umount -l races 2012-09-22 20:48:18 -04:00
no-block.c
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open.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
pipe.c pipe(2) - race-free error recovery 2012-09-26 21:08:52 -04:00
pnode.c VFS: Make clone_mnt()/copy_tree()/collect_mounts() return errors 2012-07-14 16:37:27 +04:00
pnode.h
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posix_acl.c userns: Convert vfs posix_acl support to use kuids and kgids 2012-09-18 01:01:35 -07:00
proc_namespace.c get rid of magic in proc_namespace.c 2012-07-14 16:32:48 +04:00
read_write.c compat: fs: Generic compat_sys_sendfile implementation 2012-10-02 21:35:55 -04:00
read_write.h compat: fs: Generic compat_sys_sendfile implementation 2012-10-02 21:35:55 -04:00
readdir.c switch simple cases of fget_light to fdget 2012-09-26 22:20:08 -04:00
select.c switch simple cases of fget_light to fdget 2012-09-26 22:20:08 -04:00
seq_file.c userns: Make seq_file's user namespace accessible 2012-08-14 21:47:55 -07:00
signalfd.c switch simple cases of fget_light to fdget 2012-09-26 22:20:08 -04:00
splice.c switch simple cases of fget_light to fdget 2012-09-26 22:20:08 -04:00
stack.c
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stat.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
statfs.c switch simple cases of fget_light to fdget 2012-09-26 22:20:08 -04:00
super.c idr: rename MAX_LEVEL to MAX_IDR_LEVEL 2012-10-06 03:04:56 +09:00
sync.c switch simple cases of fget_light to fdget 2012-09-26 22:20:08 -04:00
timerfd.c switch simple cases of fget_light to fdget 2012-09-26 22:20:08 -04:00
utimes.c switch simple cases of fget_light to fdget 2012-09-26 22:20:08 -04:00
xattr.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2012-10-02 21:38:48 -07:00
xattr_acl.c userns: Pass a userns parameter into posix_acl_to_xattr and posix_acl_from_xattr 2012-09-18 01:01:35 -07:00