On Mon, Mar 2, 2026 at 3:25 PM Jeff Layton <[email protected]> wrote: > > inode->i_ino is being widened from unsigned long to u64. The audit > subsystem uses unsigned long ino in struct fields, function parameters, > and local variables that store inode numbers from arbitrary filesystems. > On 32-bit platforms this truncates inode numbers that exceed 32 bits, > which will cause incorrect audit log entries and broken watch/mark > comparisons. > > Widen all audit ino fields, parameters, and locals to u64, and update > the inode format string from %lu to %llu to match. > > Signed-off-by: Jeff Layton <[email protected]> > --- > include/linux/audit.h | 2 +- > kernel/audit.h | 9 ++++----- > kernel/audit_fsnotify.c | 4 ++-- > kernel/audit_watch.c | 8 ++++---- > kernel/auditsc.c | 2 +- > 5 files changed, 12 insertions(+), 13 deletions(-)
We should also update audit_hash_ino() in kernel/audit.h. It is a *very* basic hash function, so I think leaving the function as-is and just changing the inode parameter from u32 to u64 should be fine. -- paul-moore.com
