AuxXxilium/linux_dsm_epyc7002
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1deb9c5dfb
linux_dsm_epyc7002/arch/tile/kernel
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Chris Metcalf 1deb9c5dfb arch/tile: don't allow user code to set the PL via ptrace or signal return 
The kernel was allowing any component of the pt_regs to be updated either
by signal handlers writing to the stack, or by processes writing via
PTRACE_POKEUSR or PTRACE_SETREGS, which meant they could set their PL
up from 0 to 1 and get access to kernel code and data (or, in practice,
cause a kernel panic).  We now always reset the ex1 field, allowing the
user to set their ICS bit only.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
2010-11-01 15:31:17 -04:00
..
asm-offsets.c arch/tile: core support for Tilera 32-bit chips. 2010-06-04 17:11:18 -04:00
backtrace.c arch/tile: support new info op generated by compiler 2010-10-15 15:39:25 -04:00
compat_signal.c arch/tile: Use <asm-generic/syscalls.h> 2010-10-14 14:34:33 -04:00
compat.c arch/tile: make ptrace() work properly for TILE-Gx COMPAT mode 2010-10-15 15:39:44 -04:00
early_printk.c arch/tile: bomb raw_local_irq_ to arch_local_irq_ 2010-11-01 15:30:42 -04:00
entry.S arch/tile: parameterize system PLs to support KVM port 2010-10-15 15:38:09 -04:00
hardwall.c arch/tile: bomb raw_local_irq_ to arch_local_irq_ 2010-11-01 15:30:42 -04:00
head_32.S arch/tile: parameterize system PLs to support KVM port 2010-10-15 15:38:09 -04:00
hvglue.lds arch/tile: Enable more sophisticated IRQ model for 32-bit chips. 2010-07-06 13:34:01 -04:00
init_task.c arch/tile: core support for Tilera 32-bit chips. 2010-06-04 17:11:18 -04:00
intvec_32.S arch/tile: enable single-step support for TILE-Gx 2010-10-15 15:38:26 -04:00
irq.c arch/tile: bomb raw_local_irq_ to arch_local_irq_ 2010-11-01 15:30:42 -04:00
machine_kexec.c arch/tile: complete migration to new kmap_atomic scheme 2010-11-01 15:30:36 -04:00
Makefile arch/tile: Add driver to enable access to the user dynamic network. 2010-07-06 13:34:15 -04:00
messaging.c arch/tile: bomb raw_local_irq_ to arch_local_irq_ 2010-11-01 15:30:42 -04:00
module.c arch/tile: Miscellaneous cleanup changes. 2010-07-06 13:41:51 -04:00
pci-dma.c arch/tile: Do not use GFP_KERNEL for dma_alloc_coherent(). 2010-06-05 10:26:55 -04:00
proc.c arch: tile: kernel/proc.c Removed duplicated #include 2010-08-13 08:10:16 -04:00
process.c arch/tile: parameterize system PLs to support KVM port 2010-10-15 15:38:09 -04:00
ptrace.c arch/tile: don't allow user code to set the PL via ptrace or signal return 2010-11-01 15:31:17 -04:00
reboot.c arch/tile: bomb raw_local_irq_ to arch_local_irq_ 2010-11-01 15:30:42 -04:00
regs_32.S arch/tile: parameterize system PLs to support KVM port 2010-10-15 15:38:09 -04:00
relocate_kernel.S arch/tile: core support for Tilera 32-bit chips. 2010-06-04 17:11:18 -04:00
setup.c arch/tile: bomb raw_local_irq_ to arch_local_irq_ 2010-11-01 15:30:42 -04:00
signal.c arch/tile: don't allow user code to set the PL via ptrace or signal return 2010-11-01 15:31:17 -04:00
single_step.c arch/tile: enable single-step support for TILE-Gx 2010-10-15 15:38:26 -04:00
smp.c arch/tile: bomb raw_local_irq_ to arch_local_irq_ 2010-11-01 15:30:42 -04:00
smpboot.c arch/tile: Miscellaneous cleanup changes. 2010-07-06 13:41:51 -04:00
stack.c arch/tile: prevent corrupt top frame from causing backtracer runaway 2010-10-14 15:19:04 -04:00
sys.c arch/tile: Use <asm-generic/syscalls.h> 2010-10-14 14:34:33 -04:00
tile-desc_32.c arch/tile: Shrink the tile-opcode files considerably. 2010-07-06 13:40:56 -04:00
time.c arch/tile: bomb raw_local_irq_ to arch_local_irq_ 2010-11-01 15:30:42 -04:00
tlb.c arch/tile: core support for Tilera 32-bit chips. 2010-06-04 17:11:18 -04:00
traps.c arch/tile: enable single-step support for TILE-Gx 2010-10-15 15:38:26 -04:00
vmlinux.lds.S arch/tile: Miscellaneous cleanup changes. 2010-07-06 13:41:51 -04:00