https://github.com/torvalds/linux
Revision 26135022f85105ad725cda103fa069e29e83bd16 authored by Amanieu d'Antras on 06 August 2015, 22:46:29 UTC, committed by Linus Torvalds on 07 August 2015, 01:39:40 UTC
This function may copy the si_addr_lsb, si_lower and si_upper fields to user mode when they haven't been initialized, which can leak kernel stack data to user mode. Just checking the value of si_code is insufficient because the same si_code value is shared between multiple signals. This is solved by checking the value of si_signo in addition to si_code. Signed-off-by: Amanieu d'Antras <amanieu@gmail.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Tip revision: 26135022f85105ad725cda103fa069e29e83bd16 authored by Amanieu d'Antras on 06 August 2015, 22:46:29 UTC
signal: fix information leak in copy_siginfo_to_user
signal: fix information leak in copy_siginfo_to_user
Tip revision: 2613502
| File | Mode | Size |
|---|---|---|
| Documentation | ||
| arch | ||
| block | ||
| crypto | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .gitignore | -rw-r--r-- | 1.2 KB |
| .mailmap | -rw-r--r-- | 5.3 KB |
| COPYING | -rw-r--r-- | 18.3 KB |
| CREDITS | -rw-r--r-- | 94.7 KB |
| Kbuild | -rw-r--r-- | 2.6 KB |
| Kconfig | -rw-r--r-- | 252 bytes |
| MAINTAINERS | -rw-r--r-- | 313.7 KB |
| Makefile | -rw-r--r-- | 53.3 KB |
| README | -rw-r--r-- | 18.2 KB |
| REPORTING-BUGS | -rw-r--r-- | 7.3 KB |
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