diff options
| author | Richard Guy Briggs <rgb@redhat.com> | 2019-01-23 13:35:00 -0500 |
|---|---|---|
| committer | Paul Moore <paul@paul-moore.com> | 2019-01-30 20:51:47 -0500 |
| commit | 57d4657716aca81ef4d7ec23e8123d26e3d28954 (patch) | |
| tree | 61af3d955d7a01767f7d1e6ede67ca6096cc8a07 /include/linux/namei.h | |
| parent | 05c7a9cb2727cd3c3d8e767f48e5cd18486a8d16 (diff) | |
audit: ignore fcaps on umount
Don't fetch fcaps when umount2 is called to avoid a process hang while
it waits for the missing resource to (possibly never) re-appear.
Note the comment above user_path_mountpoint_at():
* A umount is a special case for path walking. We're not actually interested
* in the inode in this situation, and ESTALE errors can be a problem. We
* simply want track down the dentry and vfsmount attached at the mountpoint
* and avoid revalidating the last component.
This can happen on ceph, cifs, 9p, lustre, fuse (gluster) or NFS.
Please see the github issue tracker
https://github.com/linux-audit/audit-kernel/issues/100
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
[PM: merge fuzz in audit_log_fcaps()]
Signed-off-by: Paul Moore <paul@paul-moore.com>
Diffstat (limited to 'include/linux/namei.h')
| -rw-r--r-- | include/linux/namei.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/namei.h b/include/linux/namei.h index a78606e8e3df..9138b4471dbf 100644 --- a/include/linux/namei.h +++ b/include/linux/namei.h @@ -24,6 +24,8 @@ enum {LAST_NORM, LAST_ROOT, LAST_DOT, LAST_DOTDOT, LAST_BIND}; * - internal "there are more path components" flag * - dentry cache is untrusted; force a real lookup * - suppress terminal automount + * - skip revalidation + * - don't fetch xattrs on audit_inode */ #define LOOKUP_FOLLOW 0x0001 #define LOOKUP_DIRECTORY 0x0002 @@ -33,6 +35,7 @@ enum {LAST_NORM, LAST_ROOT, LAST_DOT, LAST_DOTDOT, LAST_BIND}; #define LOOKUP_REVAL 0x0020 #define LOOKUP_RCU 0x0040 #define LOOKUP_NO_REVAL 0x0080 +#define LOOKUP_NO_EVAL 0x0100 /* * Intent data |