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| author | Al Viro <viro@zeniv.linux.org.uk> | 2011-03-23 20:52:50 +0100 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2011-03-23 22:01:18 +0100 |
| commit | a9712bc12c40c172e393f85a9b2ba8db4bf59509 (patch) | |
| tree | c40217e028ae937da7ad94e249e2247191ffcc8f /kernel/kallsyms.c | |
| parent | proc: enable writing to /proc/pid/mem (diff) | |
| download | linux-a9712bc12c40c172e393f85a9b2ba8db4bf59509.tar.xz linux-a9712bc12c40c172e393f85a9b2ba8db4bf59509.zip | |
deal with races in /proc/*/{syscall,stack,personality}
All of those are rw-r--r-- and all are broken for suid - if you open
a file before the target does suid-root exec, you'll be still able
to access it. For personality it's not a big deal, but for syscall
and stack it's a real problem.
Fix: check that task is tracable for you at the time of read().
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'kernel/kallsyms.c')
0 files changed, 0 insertions, 0 deletions