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| author | Eric Paris <eparis@redhat.com> | 2010-10-28 17:21:57 -0400 |
|---|---|---|
| committer | Eric Paris <eparis@redhat.com> | 2010-10-28 17:22:14 -0400 |
| commit | e7099d8a5a34d2876908a9fab4952dabdcfc5909 (patch) | |
| tree | 34f62d8ae23c4c115a0b615cd13e9ae7ddd28b42 /include/linux/fsnotify_backend.h | |
| parent | 5dd03f55fd2f21916ce248bb2e68bbfb39d94fe5 (diff) | |
| download | lwn-e7099d8a5a34d2876908a9fab4952dabdcfc5909.tar.gz lwn-e7099d8a5a34d2876908a9fab4952dabdcfc5909.zip | |
fanotify: limit the number of marks in a single fanotify group
There is currently no limit on the number of marks a given fanotify group
can have. Since fanotify is gated on CAP_SYS_ADMIN this was not seen as
a serious DoS threat. This patch implements a default of 8192, the same as
inotify to work towards removing the CAP_SYS_ADMIN gating and eliminating
the default DoS'able status.
Signed-off-by: Eric Paris <eparis@redhat.com>
Diffstat (limited to 'include/linux/fsnotify_backend.h')
| -rw-r--r-- | include/linux/fsnotify_backend.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h index b37f3a71a9dc..49ceed6e92b1 100644 --- a/include/linux/fsnotify_backend.h +++ b/include/linux/fsnotify_backend.h @@ -169,6 +169,7 @@ struct fsnotify_group { bool bypass_perm; /* protected by access_mutex */ #endif /* CONFIG_FANOTIFY_ACCESS_PERMISSIONS */ int f_flags; + unsigned int max_marks; } fanotify_data; #endif /* CONFIG_FANOTIFY */ }; |