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| author | kib <kib@FreeBSD.org> | 2008-10-31 10:38:30 +0000 |
|---|---|---|
| committer | kib <kib@FreeBSD.org> | 2008-10-31 10:38:30 +0000 |
| commit | 288874a97d33df16756a3874686562313e150f80 (patch) | |
| tree | fe6fa4d3bbb1630a25ba4365c47834c54444096d /sys/compat/linux/linux_util.c | |
| parent | e200f7c9b6fc508b9497ebb976b2d97cdc95b524 (diff) | |
| download | FreeBSD-src-288874a97d33df16756a3874686562313e150f80.zip FreeBSD-src-288874a97d33df16756a3874686562313e150f80.tar.gz | |
The code in linux_proc_exit() contains a race when multiple linux based
processes exits at the same time. The linux_emuldata structure is freed
but p->p_emuldata is left as a dangling pointer to the just freed memory.
The check for W_EXIT in the loop scanning the child processes isn't safe
since the state of the child process can change right afterwards. Lock
the process and check the W_EXIT before delivering signal.
Submitted by: tegge
Reviewed by: davidxu
MFC after: 1 week
Diffstat (limited to 'sys/compat/linux/linux_util.c')
0 files changed, 0 insertions, 0 deletions
