I disassembled the offending code, the error is in the following code: r13 is zero so the mov 0x40 is accessing data from the NULL ptr in r13
ffffffff8172898f: 4d 8b 55 40 mov 0x40(%r13),%r10 <---- here ffffffff81728993: 4d 8d ba c0 00 00 00 lea 0xc0(%r10),%r15 ffffffff8172899a: 4c 89 55 c0 mov %r10,-0x40(%rbp) ffffffff8172899e: 4c 89 ff mov %r15,%rdi ffffffff817289a1: e8 6a d3 af 00 call 0xffffffff82225d10 <--- down_write() So looking at aafs_create() in security/apparmor/apparmorfs.c I'm presuming the dir from d_inode(parent) is null and this is tripping this issue. Would be good to get John the apparmor maintainer to look at this. Normally I'd help debug this further, but I don't know how to get access to the RT kernel source. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2068602 Title: kernel oops in aafs_create in 6.8.1-1002-realtime kernel To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-realtime/+bug/2068602/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
