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| author | Peter Hurley <[email protected]> | 2015-06-27 13:21:32 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2015-07-23 22:05:53 +0000 |
| commit | 3b19e032295647b7be2aa3be62510db4aaeda759 (patch) | |
| tree | 42d49b560e263749594dd73e5b149460bdad3dfd /net/switchdev/switchdev.c | |
| parent | Linux 4.2-rc3 (diff) | |
| download | kernel-3b19e032295647b7be2aa3be62510db4aaeda759.tar.gz kernel-3b19e032295647b7be2aa3be62510db4aaeda759.zip | |
n_tty: signal and flush atomically
When handling signalling char, claim the termios write lock before
signalling waiting readers and writers to prevent further i/o
before flushing the echo and output buffers. This prevents a
userspace signal handler which may output from racing the terminal
flush.
Reference: Bugzilla #99351 ("Output truncated in ssh session after...")
Fixes: commit d2b6f44779d3 ("n_tty: Fix signal handling flushes")
Reported-by: Filipe Brandenburger <[email protected]>
Signed-off-by: Peter Hurley <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'net/switchdev/switchdev.c')
0 files changed, 0 insertions, 0 deletions