Revision 15cab952139404d0e593cb1aaab0a3547ac0f95b authored by Oleg Nesterov on 23 March 2012, 22:02:39 UTC, committed by Linus Torvalds on 23 March 2012, 23:58:40 UTC
Another old/known problem. If the tracee is killed after it reports syscall_entry, it starts the syscall and debugger can't control this. This confuses the users and this creates the security problems for ptrace jailers. Change tracehook_report_syscall_entry() to return non-zero if killed, this instructs syscall_trace_enter() to abort the syscall. Reported-by: Chris Evans <scarybeasts@gmail.com> Tested-by: Indan Zupancic <indan@nul.nu> Signed-off-by: Oleg Nesterov <oleg@redhat.com> Cc: Denys Vlasenko <vda.linux@googlemail.com> Cc: Tejun Heo <tj@kernel.org> Cc: Pedro Alves <palves@redhat.com> Cc: Jan Kratochvil <jan.kratochvil@redhat.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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| crypto | ||
| drivers | ||
| firmware | ||
| fs | ||
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| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
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| security | ||
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| .gitignore | -rw-r--r-- | 1014 bytes |
| .mailmap | -rw-r--r-- | 4.2 KB |
| COPYING | -rw-r--r-- | 18.3 KB |
| CREDITS | -rw-r--r-- | 92.8 KB |
| Kbuild | -rw-r--r-- | 2.5 KB |
| Kconfig | -rw-r--r-- | 252 bytes |
| MAINTAINERS | -rw-r--r-- | 205.0 KB |
| Makefile | -rw-r--r-- | 52.2 KB |
| README | -rw-r--r-- | 17.0 KB |
| REPORTING-BUGS | -rw-r--r-- | 3.3 KB |
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