| commit | c2db3a421b92e6f616405b47cfc03ff249492a34 | |
| author | John Blackwood <john.blackwood@ccur.com> | |
| Mon, 7 Dec 2015 11:50:34 +0000 (7 11:50 +0000) | ||
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | |
| Fri, 29 Jan 2016 05:49:36 +0000 (28 21:49 -0800) | ||
| tree | bf0236b5dc4f7129ad117340a3a589fa78aba2da | treesnapshot (tar.gz zip) |
| parent | 7c2543203b59387f079afc85a03a87b15d5838b7 | commitdiff |
arm64: Clear out any singlestep state on a ptrace detach operation
commit 5db4fd8c52810bd9740c1240ebf89223b171aa70 upstream.
Make sure to clear out any ptrace singlestep state when a ptrace(2)
PTRACE_DETACH call is made on arm64 systems.
Otherwise, the previously ptraced task will die off with a SIGTRAP
signal if the debugger just previously singlestepped the ptraced task.
Signed-off-by: John Blackwood <john.blackwood@ccur.com>
[will: added comment to justify why this is in the arch code]
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 5db4fd8c52810bd9740c1240ebf89223b171aa70 upstream.
Make sure to clear out any ptrace singlestep state when a ptrace(2)
PTRACE_DETACH call is made on arm64 systems.
Otherwise, the previously ptraced task will die off with a SIGTRAP
signal if the debugger just previously singlestepped the ptraced task.
Signed-off-by: John Blackwood <john.blackwood@ccur.com>
[will: added comment to justify why this is in the arch code]
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| arch/arm64/kernel/ptrace.c | diffblobblamehistory |