Jann Horn 42a0cc3478 sys: don't hold uts_sem while accessing userspace memory ...

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: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>

2018-08-11 02:05:53 -05:00

..

.gitignore

alpha: .gitignore vmlinux.lds

2009-01-15 16:39:40 -08:00

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.

2014-01-31 09:21:55 -08:00

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

bugs.c

alpha: Implement CPU vulnerabilities sysfs functions.

2018-04-07 15:04:04 -07:00

console.c

vgacon: Set VGA struct resource types

2017-12-18 23:07:43 -06:00

core_apecs.c

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

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

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

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

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

entry.S

alpha: get rid of pointless insn in ret_from_kernel_thread

2018-03-28 08:58:27 -04:00

err_common.c

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

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

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

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

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gct.c

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

head.S

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

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

io.c

alpha: io: reorder barriers to guarantee writeX() and iowriteX() ordering #2

2018-05-22 18:10:36 -07:00

irq_alpha.c

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

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

irq_i8259.c

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

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

irq_impl.h

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

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irq_pyxis.c

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

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

irq_srm.c

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

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irq.c

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machvec_impl.h

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

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

Makefile

alpha: Implement CPU vulnerabilities sysfs functions.

2018-04-07 15:04:04 -07:00

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

2018-08-11 02:05:53 -05:00

pc873xx.c

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

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

pc873xx.h

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

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

pci_impl.h

alpha: fix reboot on Avanti platform

2018-01-20 17:01:10 -08:00

pci_iommu.c

alpha: simplify get_arch_dma_ops

2018-05-22 18:10:36 -07:00

pci-noop.c

alpha: use dma_direct_ops for jensen

2018-05-22 18:10:36 -07:00

pci-sysfs.c

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

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

pci.c

alpha: switch pci syscalls to SYSCALL_DEFINE

2018-03-28 08:58:19 -04:00

perf_event.c

perf: Fix sibling iteration

2018-03-16 20:44:12 +01:00

process.c

alpha: fix crash if pthread_create races with signal delivery

2018-01-20 17:01:16 -08:00

proto.h

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

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ptrace.c

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rtc.c

alpha: rtc: stop validating rtc_time in .read_time

2018-04-07 15:03:42 -07:00

setup.c

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

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

signal.c

signal/alpha: Use send_sig_fault where appropriate

2018-04-25 10:40:58 -05:00

smc37c93x.c

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

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

smc37c669.c

alpha: squash lines for immediate return

2017-09-04 12:04:32 -07:00

smp.c

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

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

srm_env.c

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

2016-12-24 11:46:01 -08:00

srmcons.c

treewide: setup_timer() -> timer_setup()

2017-11-21 15:57:07 -08:00

sys_alcor.c

License cleanup: add SPDX license identifiers to some files

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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

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sys_jensen.c

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

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sys_marvel.c

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

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sys_miata.c

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sys_mikasa.c

License cleanup: add SPDX license identifiers to some files

2017-11-02 10:04:46 -07:00

sys_nautilus.c

alpha: deprecate pci_get_bus_and_slot()

2018-01-20 17:01:04 -08:00

sys_noritake.c

License cleanup: add SPDX license identifiers to some files

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sys_rawhide.c

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sys_ruffian.c

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sys_rx164.c

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sys_sable.c

License cleanup: add SPDX license identifiers to some files

2017-11-02 10:04:46 -07:00

sys_sio.c

alpha/PCI: Fix noname IRQ level detection

2018-01-20 16:22:36 -08:00

sys_sx164.c

License cleanup: add SPDX license identifiers to some files

2017-11-02 10:04:46 -07:00

sys_takara.c

License cleanup: add SPDX license identifiers to some files

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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

License cleanup: add SPDX license identifiers to some files

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systbls.S

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time.c

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

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

traps.c

signal/alpha: Use force_sig_fault where appropriate

2018-04-25 10:40:59 -05:00

vmlinux.lds.S

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

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