Roland McGrath 00ec99da43 core dump: remain dumpable ...

The coredump code always calls set_dumpable(0) when it starts (even
if RLIMIT_CORE prevents any core from being dumped).  The effect of
this (via task_dumpable) is to make /proc/pid/* files owned by root
instead of the user, so the user can no longer examine his own
process--in a case where there was never any privileged data to
protect.  This affects e.g. auxv, environ, fd; in Fedora (execshield)
kernels, also maps.  In practice, you can only notice this when a
debugger has requested PTRACE_EVENT_EXIT tracing.

set_dumpable was only used in do_coredump for synchronization and not
intended for any security purpose.  (It doesn't secure anything that wasn't
already unsecured when a process dies by SIGTERM instead of SIGQUIT.)

This changes do_coredump to check the core_waiters count as the means of
synchronization, which is sufficient.  Now we leave the "dumpable" bits alone.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2007-11-12 10:32:29 -08:00

..

9p

9p: use copy of the options value instead of original

2007-11-06 08:02:53 -06:00

adfs

Slab API: remove useless ctor parameter and reorder parameters

2007-10-17 08:42:45 -07:00

affs

fs: mark nibblemap const

2007-10-17 08:42:47 -07:00

afs

fs/afs/vlocation.c: fix off-by-one

2007-11-05 15:12:32 -08:00

autofs

Use task_pid_nr() instead of pid_nr(task_pid())

2007-10-19 11:53:43 -07:00

autofs4

pid namespaces: round up the API

2007-10-19 11:53:37 -07:00

befs

Slab API: remove useless ctor parameter and reorder parameters

2007-10-17 08:42:45 -07:00

bfs

Slab API: remove useless ctor parameter and reorder parameters

2007-10-17 08:42:45 -07:00

cifs

exportfs: make struct export_operations const

2007-10-22 08:13:21 -07:00

coda

pid namespaces: round up the API

2007-10-19 11:53:37 -07:00

configfs

r/o bind mounts: filesystem helpers for custom 'struct file's

2007-10-17 08:43:04 -07:00

cramfs

fs/cramfs/inode.c: replace hardcoded value with preprocessor constant

2007-10-18 14:37:29 -07:00

debugfs

[PATCH] pass dentry to audit_inode()/audit_inode_child()

2007-10-21 02:37:18 -04:00

devpts

devpts: add fsnotify create event

2007-05-08 11:14:59 -07:00

dlm

[DLM] lowcomms: Do not muck with sysctl_rmem_max.

2007-11-07 04:11:42 -08:00

ecryptfs

eCryptfs: release mutex on hash error path

2007-11-05 15:12:33 -08:00

efs

exportfs: make struct export_operations const

2007-10-22 08:13:21 -07:00

exportfs

exportfs: update documentation

2007-10-22 08:13:21 -07:00

ext2

exportfs: make struct export_operations const

2007-10-22 08:13:21 -07:00

ext3

exportfs: make struct export_operations const

2007-10-22 08:13:21 -07:00

ext4

exportfs: make struct export_operations const

2007-10-22 08:13:21 -07:00

fat

exportfs: make struct export_operations const

2007-10-22 08:13:21 -07:00

freevxfs

mm: Remove slab destructors from kmem_cache_create().

2007-07-20 10:11:58 +09:00

fuse

fuse: add blksize field to fuse_attr

2007-10-18 14:37:31 -07:00

gfs2

exportfs: make struct export_operations const

2007-10-22 08:13:21 -07:00

hfs

Slab API: remove useless ctor parameter and reorder parameters

2007-10-17 08:42:45 -07:00

hfsplus

Slab API: remove useless ctor parameter and reorder parameters

2007-10-17 08:42:45 -07:00

hostfs

uml: fix hostfs style

2007-10-16 09:43:07 -07:00

hpfs

Slab API: remove useless ctor parameter and reorder parameters

2007-10-17 08:42:45 -07:00

hppfs

[PATCH] Mark struct super_operations const

2007-02-12 09:48:47 -08:00

hugetlbfs

r/o bind mounts: filesystem helpers for custom 'struct file's

2007-10-17 08:43:04 -07:00

isofs

exportfs: make struct export_operations const

2007-10-22 08:13:21 -07:00

jbd

JBD: Fix JBD warnings when compiling with CONFIG_JBD_DEBUG

2007-10-19 11:53:35 -07:00

jbd2

JBD2: debug code cleanup.

2007-10-17 18:49:59 -04:00

jffs2

[JFFS2] Prevent return of initialised variable in jffs2_init_acl_post()

2007-10-27 10:36:44 -04:00

jfs

exportfs: make struct export_operations const

2007-10-22 08:13:21 -07:00

lockd

NFS/SUNRPC: use transport protocol naming

2007-10-09 17:17:53 -04:00

minix

limit minixfs printks on corrupted dir i_size

2007-10-17 08:42:53 -07:00

msdos

[PATCH] mark struct inode_operations const 2

2007-02-12 09:48:46 -08:00

ncpfs

Slab API: remove useless ctor parameter and reorder parameters

2007-10-17 08:42:45 -07:00

nfs

NFS: Fix for bug in handling of errors for O_DIRECT writes

2007-10-23 16:41:21 -07:00

nfs_common

…

nfsd

cleanup asm/scatterlist.h includes

2007-11-02 08:47:06 +01:00

nls

sparse pointer use of zero as null

2007-10-18 14:37:31 -07:00

ntfs

NTFS: Fix read regression.

2007-11-03 12:27:21 -07:00

ocfs2

ocfs2: fix rename vs unlink race

2007-11-06 15:35:40 -08:00

openpromfs

Slab API: remove useless ctor parameter and reorder parameters

2007-10-17 08:42:45 -07:00

partitions

fs/partitions/sun.c endianness annotations

2007-10-14 12:41:51 -07:00

proc

[NET]: Kill proc_net_create()

2007-11-07 04:10:52 -08:00

qnx4

Slab API: remove useless ctor parameter and reorder parameters

2007-10-17 08:42:45 -07:00

ramfs

Remove valueless definition of hard-selected RAMFS option

2007-10-17 08:42:56 -07:00

reiserfs

exportfs: make struct export_operations const

2007-10-22 08:13:21 -07:00

romfs

fs/romfs/inode.c: trivial improvements

2007-10-17 08:42:47 -07:00

smbfs

Slab API: remove useless ctor parameter and reorder parameters

2007-10-17 08:42:45 -07:00

sysfs

sysfs: make sysfs_{get,put}_active() static

2007-10-30 21:52:33 -07:00

sysv

Slab API: remove useless ctor parameter and reorder parameters

2007-10-17 08:42:45 -07:00

udf

fs/udf/balloc.c: mark a variable as uninitialized_var()

2007-10-17 08:43:00 -07:00

ufs

revert "ufs: Fix mount check in ufs_fill_super()"

2007-10-30 08:06:55 -07:00

vfat

[PATCH] mark struct inode_operations const 3

2007-02-12 09:48:46 -08:00

xfs

exportfs: make struct export_operations const

2007-10-22 08:13:21 -07:00

aio.c

Remove struct task_struct::io_wait

2007-10-18 14:37:20 -07:00

anon_inodes.c

anon-inodes use open coded atomic_inc for the shared inode

2007-10-17 08:43:00 -07:00

attr.c

VFS: make notify_change pass ATTR_KILL_S*ID to setattr operations

2007-10-18 14:37:22 -07:00

bad_inode.c

sendfile: remove bad_sendfile() from bad_file_ops

2007-07-10 08:04:15 +02:00

binfmt_aout.c

core_pattern: ignore RLIMIT_CORE if core_pattern is a pipe

2007-10-17 08:42:50 -07:00

binfmt_elf_fdpic.c

pid namespaces: changes to show virtual ids to user

2007-10-19 11:53:40 -07:00

binfmt_elf.c

pid namespaces: changes to show virtual ids to user

2007-10-19 11:53:40 -07:00

binfmt_em86.c

Convert files to UTF-8 and some cleanups

2007-10-19 23:21:04 +02:00

binfmt_flat.c

binfmt_flat: warning fixes

2007-10-17 08:42:54 -07:00

binfmt_misc.c

Convert files to UTF-8 and some cleanups

2007-10-19 23:21:04 +02:00

binfmt_script.c

Convert files to UTF-8 and some cleanups

2007-10-19 23:21:04 +02:00

binfmt_som.c

core_pattern: ignore RLIMIT_CORE if core_pattern is a pipe

2007-10-17 08:42:50 -07:00

bio.c

bio: make freeing of ->bi_io_vec conditional in bio_free()

2007-10-16 11:03:52 +02:00

block_dev.c

Slab API: remove useless ctor parameter and reorder parameters

2007-10-17 08:42:45 -07:00

buffer.c

nobh: nobh_write_end fix

2007-10-21 08:54:05 -07:00

char_dev.c

mm: bdi init hooks

2007-10-17 08:42:45 -07:00

compat_ioctl.c

[COMPAT]: Fix new dev_ifname32 returning -EFAULT

2007-10-30 21:29:42 -07:00

compat.c

mm: variable length argument support

2007-07-19 10:04:45 -07:00

dcache.c

dcache: don't expose uninitialized memory in /proc/<pid>/fd/<fd>

2007-10-22 08:13:18 -07:00

dcookies.c

Remove fs.h from mm.h

2007-07-29 17:09:29 -07:00

direct-io.c

remove ZERO_PAGE

2007-10-16 09:42:53 -07:00

dnotify.c

mm: Remove slab destructors from kmem_cache_create().

2007-07-20 10:11:58 +09:00

dquot.c

quota: send messages via netlink

2007-10-17 08:42:56 -07:00

drop_caches.c

invalidate_mapping_pages(): add cond_resched

2007-07-16 09:05:36 -07:00

eventfd.c

eventfd use waitqueue lock ...

2007-05-18 13:09:34 -07:00

eventpoll.c

fs/eventpoll.c: use list_for_each_entry() instead of list_for_each()

2007-10-19 11:53:38 -07:00

exec.c

core dump: remain dumpable

2007-11-12 10:32:29 -08:00

fcntl.c

pid namespaces: changes to show virtual ids to user

2007-10-19 11:53:40 -07:00

fifo.c

Detach sched.h from mm.h

2007-05-21 09:18:19 -07:00

file_table.c

fs/file_table.c: use list_for_each_entry() instead of list_for_each()

2007-10-19 11:53:38 -07:00

file.c

…

filesystems.c

add filesystem subtype support

2007-05-08 11:15:01 -07:00

fs-writeback.c

Use helpers to obtain task pid in printks

2007-10-19 11:53:43 -07:00

generic_acl.c

Introduce is_owner_or_cap() to wrap CAP_FOWNER use with fsuid check

2007-07-17 12:00:03 -07:00

inode.c

introduce I_SYNC

2007-10-17 08:43:02 -07:00

inotify_user.c

change inotifyfs magic as the same magic is used for futexfs

2007-10-17 08:43:00 -07:00

inotify.c

[PATCH] new helper - inotify_evict_watch()

2007-10-21 02:37:38 -04:00

internal.h

cleanup compat ioctl handling

2007-05-08 11:15:09 -07:00

ioctl.c

drop obsolete sys_ioctl export

2007-07-16 09:05:48 -07:00

ioprio.c

ioprio: allow sys_ioprio_set() value of 0 to reset ioprio setting

2007-11-07 13:54:07 +01:00

Kconfig

Kbuild/doc: fix links to Documentation files

2007-10-30 14:26:30 -07:00

Kconfig.binfmt

fs: Kill sh dependency for binfmt_flat.

2007-05-21 14:34:00 +09:00

libfs.c

exportfs: add new methods

2007-10-22 08:13:19 -07:00

locks.c

locks: fix possible infinite loop in posix deadlock detection

2007-10-30 09:04:18 -07:00

Makefile

Remove valueless definition of hard-selected RAMFS option

2007-10-17 08:42:56 -07:00

mbcache.c

fs: Fix to correct the mbcache entries counter

2007-10-25 15:18:29 -07:00

mpage.c

mm: buffered write cleanup

2007-10-16 09:42:54 -07:00

namei.c

[PATCH] pass dentry to audit_inode()/audit_inode_child()

2007-10-21 02:37:18 -04:00

namespace.c

[PATCH] new helpers - collect_mounts() and release_collected_mounts()

2007-10-21 02:37:25 -04:00

nfsctl.c

nfsctl: use vfs_path_lookup

2007-07-19 10:04:45 -07:00

no-block.c

…

open.c

[PATCH] pass dentry to audit_inode()/audit_inode_child()

2007-10-21 02:37:18 -04:00

pipe.c

sched: affine sync wakeups

2007-10-15 17:00:19 +02:00

pnode.c

Introduce a handy list_first_entry macro

2007-05-08 11:15:11 -07:00

pnode.h

[PATCH] new helpers - collect_mounts() and release_collected_mounts()

2007-10-21 02:37:25 -04:00

posix_acl.c

…

quota_v1.c

…

quota_v2.c

…

quota.c

[IA64] Fix build failure in fs/quota.c

2007-07-27 15:40:13 -07:00

read_write.c

Cleanup macros for distinguishing mandatory locks

2007-10-09 18:32:46 -04:00

read_write.h

…

readdir.c

ROUND_UP macro cleanup in fs/(select|compat|readdir).c

2007-05-08 11:15:09 -07:00

select.c

fs/select, remove unused macros

2007-10-19 11:53:41 -07:00

seq_file.c

[FS] seq_file: Introduce the seq_open_private()

2007-10-10 16:55:33 -07:00

signalfd.c

rename signalfd_siginfo fields

2007-10-17 08:43:01 -07:00

splice.c

Implement file posix capabilities

2007-10-17 08:43:07 -07:00

stack.c

[PATCH] fs/stack.c: Copy i_nlink after all other attributes are copied

2007-02-19 14:21:50 -08:00

stat.c

header cleaning: don't include smp_lock.h when not used

2007-05-08 11:15:07 -07:00

super.c

Convert files to UTF-8 and some cleanups

2007-10-19 23:21:04 +02:00

sync.c

Introduce fixed sys_sync_file_range2() syscall, implement on PowerPC and ARM

2007-06-28 11:38:30 -07:00

timerfd.c

make timerfd return a u64 and fix the __put_user

2007-07-26 11:35:17 -07:00

utimes.c

VFS: check nanoseconds in utimensat

2007-10-17 08:42:52 -07:00

xattr_acl.c

[PATCH] remove many unneeded #includes of sched.h

2007-02-14 08:09:54 -08:00

xattr.c

[PATCH] pass dentry to audit_inode()/audit_inode_child()

2007-10-21 02:37:18 -04:00