Jann Horn b692c405a1 sys: don't hold uts_sem while accessing userspace memory ...

commit 42a0cc3478 upstream.

Holding uts_sem as a writer while accessing userspace memory allows a
namespace admin to stall all processes that attempt to take uts_sem.
Instead, move data through stack buffers and don't access userspace memory
while uts_sem is held.

Cc: stable@vger.kernel.org
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-09-09 19:56:00 +02:00

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asm-offsets.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

audit.c

alpha: Enable system-call auditing support.

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binfmt_loader.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

console.c

vgacon: Set VGA struct resource types

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core_apecs.c

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core_cia.c

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core_irongate.c

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core_lca.c

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core_marvel.c

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core_mcpcia.c

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core_polaris.c

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core_t2.c

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core_titan.c

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core_tsunami.c

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core_wildfire.c

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entry.S

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err_common.c

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err_ev6.c

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err_ev7.c

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err_impl.h

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err_marvel.c

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err_titan.c

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es1888.c

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gct.c

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head.S

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io.c

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irq_alpha.c

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irq_i8259.c

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irq_impl.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

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irq_pyxis.c

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irq_srm.c

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irq.c

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machvec_impl.h

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Makefile

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module.c

alpha: support R_ALPHA_REFLONG relocations for module loading

2017-08-29 12:01:52 -07:00

osf_sys.c

sys: don't hold uts_sem while accessing userspace memory

2018-09-09 19:56:00 +02:00

pc873xx.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

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pc873xx.h

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pci_impl.h

alpha: fix reboot on Avanti platform

2018-02-16 20:23:07 +01:00

pci_iommu.c

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pci-noop.c

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pci-sysfs.c

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pci.c

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perf_event.c

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process.c

alpha: fix crash if pthread_create races with signal delivery

2018-02-16 20:23:07 +01:00

proto.h

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ptrace.c

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rtc.c

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setup.c

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signal.c

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smc37c93x.c

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smc37c669.c

alpha: squash lines for immediate return

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smp.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

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srm_env.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

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srmcons.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

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sys_alcor.c

Merge tag 'spdx_identifiers-4.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

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sys_cabriolet.c

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sys_dp264.c

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sys_eb64p.c

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sys_eiger.c

Merge tag 'spdx_identifiers-4.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

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sys_jensen.c

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sys_marvel.c

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sys_miata.c

Merge tag 'spdx_identifiers-4.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

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sys_mikasa.c

Merge tag 'spdx_identifiers-4.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

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sys_nautilus.c

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sys_noritake.c

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sys_rawhide.c

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sys_ruffian.c

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sys_rx164.c

Merge tag 'spdx_identifiers-4.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

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sys_sable.c

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sys_sio.c

alpha/PCI: Fix noname IRQ level detection

2018-01-23 19:58:19 +01:00

sys_sx164.c

Merge tag 'spdx_identifiers-4.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

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sys_takara.c

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sys_titan.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

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sys_wildfire.c

Merge tag 'spdx_identifiers-4.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

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systbls.S

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time.c

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traps.c

alpha: fix formating of stack content

2018-02-16 20:23:07 +01:00

vmlinux.lds.S

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

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