unimore/kernel-hacking-2024-linux-steffo
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Hugh Dickins f4d43bd579 fix compat console unimap regression 
Why is it that since the 2f1a2ccb9c console
UTF-8 fixes went into 2.6.22-rc1, the PowerMac G5 shows only inverse video
question marks for the text on tty2-6? whereas tty1 is fine, and so is x86.

No fault of that patch: by removing the old fallback behaviour, it reveals
that 32-bit setfont running on 64-bit kernels has only really worked on
the current console, the rest getting faked by that inadequate fallback.

Bring the compat do_unimap_ioctl into line with the main one: PIO_UNIMAP
and GIO_UNIMAP apply to the specified tty, not redirected to fg_console.
Use the same checks, and most particularly, remember to check access_ok:
con_set_unimap and con_get_unimap are using __get_user and __put_user.

And the compat vt_check should ask for the same capability as the main
one, CAP_SYS_TTY_CONFIG rather than CAP_SYS_ADMIN.  Added in vt_ioctl's
vc_cons_allocated check for safety, though failure may well be impossible.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-25 17:37:46 -07:00
..
9p Detach sched.h from mm.h 2007-05-21 09:18:19 -07:00
adfs Remove SLAB_CTOR_CONSTRUCTOR 2007-05-17 05:23:04 -07:00
affs Detach sched.h from mm.h 2007-05-21 09:18:19 -07:00
afs Detach sched.h from mm.h 2007-05-21 09:18:19 -07:00
autofs Replace pid_t in autofs with struct pid reference 2007-05-11 08:29:36 -07:00
autofs4 Fix some coding-style errors in autofs 2007-05-11 08:29:36 -07:00
befs Remove SLAB_CTOR_CONSTRUCTOR 2007-05-17 05:23:04 -07:00
bfs Remove SLAB_CTOR_CONSTRUCTOR 2007-05-17 05:23:04 -07:00
cifs Remove SLAB_CTOR_CONSTRUCTOR 2007-05-17 05:23:04 -07:00
coda Detach sched.h from mm.h 2007-05-21 09:18:19 -07:00
configfs Detach sched.h from mm.h 2007-05-21 09:18:19 -07:00
cramfs
debugfs
devpts
dlm
ecryptfs eCryptfs: delay writing 0's after llseek until write 2007-05-23 20:14:15 -07:00
efs Remove SLAB_CTOR_CONSTRUCTOR 2007-05-17 05:23:04 -07:00
exportfs
ext2 Remove SLAB_CTOR_CONSTRUCTOR 2007-05-17 05:23:04 -07:00
ext3 Remove SLAB_CTOR_CONSTRUCTOR 2007-05-17 05:23:04 -07:00
ext4 Remove SLAB_CTOR_CONSTRUCTOR 2007-05-17 05:23:04 -07:00
fat Remove SLAB_CTOR_CONSTRUCTOR 2007-05-17 05:23:04 -07:00
freevxfs
fuse fuse: delete inode on drop 2007-05-23 20:14:13 -07:00
gfs2 Detach sched.h from mm.h 2007-05-21 09:18:19 -07:00
hfs Detach sched.h from mm.h 2007-05-21 09:18:19 -07:00
hfsplus Detach sched.h from mm.h 2007-05-21 09:18:19 -07:00
hostfs
hpfs Detach sched.h from mm.h 2007-05-21 09:18:19 -07:00
hppfs
hugetlbfs Remove SLAB_CTOR_CONSTRUCTOR 2007-05-17 05:23:04 -07:00
isofs Remove SLAB_CTOR_CONSTRUCTOR 2007-05-17 05:23:04 -07:00
jbd fix file specification in comments 2007-05-09 08:58:16 +02:00
jbd2 fix file specification in comments 2007-05-09 08:58:16 +02:00
jffs2 Remove SLAB_CTOR_CONSTRUCTOR 2007-05-17 05:23:04 -07:00
jfs Remove SLAB_CTOR_CONSTRUCTOR 2007-05-17 05:23:04 -07:00
lockd NLM: Fix sparse warnings 2007-05-14 19:33:46 -04:00
minix Detach sched.h from mm.h 2007-05-21 09:18:19 -07:00
msdos
ncpfs Detach sched.h from mm.h 2007-05-21 09:18:19 -07:00
nfs NFS: Fix nfs_direct_dirty_pages() 2007-05-24 11:18:18 -04:00
nfs_common
nfsd Detach sched.h from mm.h 2007-05-21 09:18:19 -07:00
nls
ntfs Detach sched.h from mm.h 2007-05-21 09:18:19 -07:00
ocfs2 [PATCH] ocfs2: use generic_segment_checks 2007-05-25 11:06:37 -07:00
openpromfs Remove SLAB_CTOR_CONSTRUCTOR 2007-05-17 05:23:04 -07:00
partitions partitions/LDM: build fix 2007-05-21 21:38:17 -07:00
proc Remove SLAB_CTOR_CONSTRUCTOR 2007-05-17 05:23:04 -07:00
qnx4 Remove SLAB_CTOR_CONSTRUCTOR 2007-05-17 05:23:04 -07:00
ramfs Detach sched.h from mm.h 2007-05-21 09:18:19 -07:00
reiserfs Missing 'const' from reiserfs MIN_KEY declaration. 2007-05-23 20:14:13 -07:00
romfs Remove SLAB_CTOR_CONSTRUCTOR 2007-05-17 05:23:04 -07:00
smbfs Detach sched.h from mm.h 2007-05-21 09:18:19 -07:00
sysfs Detach sched.h from mm.h 2007-05-21 09:18:19 -07:00
sysv Remove SLAB_CTOR_CONSTRUCTOR 2007-05-17 05:23:04 -07:00
udf Detach sched.h from mm.h 2007-05-21 09:18:19 -07:00
ufs Remove SLAB_CTOR_CONSTRUCTOR 2007-05-17 05:23:04 -07:00
vfat
xfs Remove SLAB_CTOR_CONSTRUCTOR 2007-05-17 05:23:04 -07:00
aio.c signal/timer/event: KAIO eventfd support example 2007-05-11 08:29:37 -07:00
anon_inodes.c signal/timer/event fds: anonymous inode source 2007-05-11 08:29:36 -07:00
attr.c
bad_inode.c
binfmt_aout.c
binfmt_elf.c Invalid return value of execve() resulting in oopses 2007-05-08 11:15:15 -07:00
binfmt_elf_fdpic.c
binfmt_em86.c
binfmt_flat.c
binfmt_misc.c Detach sched.h from mm.h 2007-05-21 09:18:19 -07:00
binfmt_script.c
binfmt_som.c
bio.c
block_dev.c Remove SLAB_CTOR_CONSTRUCTOR 2007-05-17 05:23:04 -07:00
buffer.c Fix "fs: convert core functions to zero_user_page" 2007-05-21 09:15:32 -07:00
char_dev.c
compat.c optimize compat_core_sys_select() by a using stack space for small fd sets 2007-05-23 20:14:12 -07:00
compat_ioctl.c fix compat console unimap regression 2007-05-25 17:37:46 -07:00
dcache.c
dcookies.c
direct-io.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2007-05-09 12:54:17 -07:00
dnotify.c
dquot.c circular locking dependency found in QUOTA OFF 2007-05-17 05:23:05 -07:00
drop_caches.c
eventfd.c eventfd use waitqueue lock ... 2007-05-18 13:09:34 -07:00
eventpoll.c epoll: move kfree inside ep_free 2007-05-15 08:54:00 -07:00
exec.c uselib: add missing MNT_NOEXEC check 2007-05-23 20:14:13 -07:00
fcntl.c
fifo.c Detach sched.h from mm.h 2007-05-21 09:18:19 -07:00
file.c
file_table.c
filesystems.c
fs-writeback.c
generic_acl.c
inode.c Remove SLAB_CTOR_CONSTRUCTOR 2007-05-17 05:23:04 -07:00
inotify.c
inotify_user.c
internal.h
ioctl.c
ioprio.c
Kconfig Remove obsolete fat_cvf help text 2007-05-09 08:58:15 +02:00
Kconfig.binfmt fs: Kill sh dependency for binfmt_flat. 2007-05-21 14:34:00 +09:00
libfs.c fs/libfs.c: >80 columns line break fix 2007-05-09 06:44:57 +02:00
locks.c Remove SLAB_CTOR_CONSTRUCTOR 2007-05-17 05:23:04 -07:00
Makefile signal/timer/event: eventfd core 2007-05-11 08:29:36 -07:00
mbcache.c
mpage.c consolidate generic_writepages and mpage_writepages 2007-05-11 08:29:35 -07:00
namei.c [PATCH] complete message queue auditing 2007-05-11 05:38:26 -04:00
namespace.c
nfsctl.c
no-block.c
open.c Remove suid/sgid bits on [f]truncate() 2007-05-08 20:10:00 -07:00
pipe.c
pnode.c
pnode.h
posix_acl.c
quota.c circular locking dependency found in QUOTA OFF 2007-05-17 05:23:05 -07:00
quota_v1.c
quota_v2.c
read_write.c
read_write.h
readdir.c
select.c Style fix in fs/select.c 2007-05-09 07:10:02 +02:00
seq_file.c
signalfd.c signalfd: retrieve multiple signals with one read() call 2007-05-23 20:14:14 -07:00
splice.c
stack.c
stat.c
super.c
sync.c
timerfd.c timerfd use waitqueue lock ... 2007-05-18 13:09:34 -07:00
utimes.c utimensat implementation 2007-05-08 11:15:18 -07:00
xattr.c [PATCH] audit inode for all xattr syscalls 2007-05-11 05:38:26 -04:00
xattr_acl.c