https://github.com/torvalds/linux
Revision 3955333df9a50e8783d115613a397ae55d905080 authored by Laura Abbott on 11 May 2018, 23:01:57 UTC, committed by Linus Torvalds on 12 May 2018, 00:28:45 UTC
The existing kcore code checks for bad addresses against __va(0) with the assumption that this is the lowest address on the system. This may not hold true on some systems (e.g. arm64) and produce overflows and crashes. Switch to using other functions to validate the address range. It's currently only seen on arm64 and it's not clear if anyone wants to use that particular combination on a stable release. So this is not urgent for stable. Link: http://lkml.kernel.org/r/20180501201143.15121-1-labbott@redhat.com Signed-off-by: Laura Abbott <labbott@redhat.com> Tested-by: Dave Anderson <anderson@redhat.com> Cc: Kees Cook <keescook@chromium.org> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: Alexey Dobriyan <adobriyan@gmail.com>a Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent 7aaf772
Tip revision: 3955333df9a50e8783d115613a397ae55d905080 authored by Laura Abbott on 11 May 2018, 23:01:57 UTC
proc/kcore: don't bounds check against address 0
proc/kcore: don't bounds check against address 0
Tip revision: 3955333
| File | Mode | Size |
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| Documentation | ||
| LICENSES | ||
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | -rw-r--r-- | 12.8 KB |
| .cocciconfig | -rw-r--r-- | 59 bytes |
| .get_maintainer.ignore | -rw-r--r-- | 31 bytes |
| .gitattributes | -rw-r--r-- | 30 bytes |
| .gitignore | -rw-r--r-- | 1.5 KB |
| .mailmap | -rw-r--r-- | 9.2 KB |
| COPYING | -rw-r--r-- | 423 bytes |
| CREDITS | -rw-r--r-- | 96.3 KB |
| Kbuild | -rw-r--r-- | 2.2 KB |
| Kconfig | -rw-r--r-- | 287 bytes |
| MAINTAINERS | -rw-r--r-- | 441.8 KB |
| Makefile | -rw-r--r-- | 61.0 KB |
| README | -rw-r--r-- | 800 bytes |
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