Kernel/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2025-01-01 10:45:49 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

audit: skip sessionid sentinel value when auto-incrementing

Browse Source 
The value (unsigned int)-1 is used as a sentinel to indicate the
sessionID is unset.  Skip this value when the session_id value wraps.

Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
This commit is contained in:
Richard Guy Briggs 2016-11-10 01:41:14 -05:00 committed by Paul Moore
parent 8443075eac
commit 833fc48d18
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
kernel/auditsc.c
View File

@ -2025,8 +2025,11 @@ int audit_set_loginuid(kuid_t loginuid)
goto out;
/* are we setting or clearing? */
if (uid_valid(loginuid))
if (uid_valid(loginuid)) {
sessionid = (unsigned int)atomic_inc_return(&session_id);
if (unlikely(sessionid == (unsigned int)-1))
sessionid = (unsigned int)atomic_inc_return(&session_id);
}
task->sessionid = sessionid;
task->loginuid = loginuid;