Serge E. Hallyn 626ac545c1 user namespace: fix copy_user_ns return value ...

When a CONFIG_USER_NS=n and a user tries to unshare some namespace other
than the user namespace, the dummy copy_user_ns returns NULL rather than
the old_ns.

This value then gets assigned to task->nsproxy->user_ns, so that a
subsequent setuid, which uses task->nsproxy->user_ns, causes a NULL
pointer deref.

Fix this by returning old_ns.

Signed-off-by: Serge E. Hallyn <serue@us.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2007-07-19 14:05:08 -07:00

..

acpi

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asm-alpha

arch: personality independent stack top

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

asm-arm

arch: personality independent stack top

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

asm-arm26

arch: personality independent stack top

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

asm-avr32

arch: personality independent stack top

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

asm-blackfin

fbdev: detect primary display device

2007-07-17 10:23:11 -07:00

asm-cris

arch: personality independent stack top

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

asm-frv

arch: personality independent stack top

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

asm-generic

i386: Put allocated ELF notes in read-only data segment

2007-07-19 10:04:47 -07:00

asm-h8300

arch: personality independent stack top

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

asm-i386

lguest: the host code

2007-07-19 10:04:52 -07:00

asm-ia64

coredump masking: reimplementation of dumpable using two flags

2007-07-19 10:04:46 -07:00

asm-m32r

arch: personality independent stack top

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

asm-m68k

arch: personality independent stack top

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

asm-m68knommu

m68knommu: remove is_in_rom() function

2007-07-19 10:04:51 -07:00

asm-mips

arch: personality independent stack top

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

asm-parisc

arch: personality independent stack top

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

asm-powerpc

arch: personality independent stack top

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

asm-ppc

mm: remove ptep_test_and_clear_dirty and ptep_clear_flush_dirty

2007-07-17 10:22:59 -07:00

asm-s390

arch: personality independent stack top

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

asm-sh

arch: personality independent stack top

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

asm-sh64

arch: personality independent stack top

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

asm-sparc

arch: personality independent stack top

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

asm-sparc64

arch: personality independent stack top

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

asm-um

arch: personality independent stack top

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

asm-v850

fbdev: detect primary display device

2007-07-17 10:23:11 -07:00

asm-x86_64

arch: personality independent stack top

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

asm-xtensa

arch: personality independent stack top

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

crypto

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keys

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linux

user namespace: fix copy_user_ns return value

2007-07-19 14:05:08 -07:00

math-emu

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media

V4L/DVB (5835): saa7146/dvb-ttpci: Fix signedness warnings (gcc 4.1.1, kernel 2.6.22)

2007-07-18 14:24:44 -03:00

mtd

UBI: kill homegrown endian macros

2007-07-18 16:53:49 +03:00

net

[GENETLINK]: Dynamic multicast groups.

2007-07-18 15:47:52 -07:00

pcmcia

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rdma

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rxrpc

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scsi

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sound

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video

tgafb: actually allocate memory for the pseudo_palette

2007-07-17 10:23:12 -07:00

xen

xen: Place vcpu_info structure into per-cpu memory

2007-07-18 08:47:45 -07:00

Kbuild

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