audit: type=1804 audit(1650405146.965:5): pid=10737 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.3" name="/root/syzkaller-testdir2840248439/syzkaller.GTSexy/58/cgroup.controllers" dev="sda1" ino=14121 res=1 kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 1 PID: 10744 Comm: syz-executor.5 Not tainted 4.14.275-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff888096be2380 task.stack: ffff88808f2a0000 RIP: 0010:dev_put include/linux/netdevice.h:3381 [inline] RIP: 0010:llc_ui_bind+0x5ba/0xa40 net/llc/af_llc.c:427 RSP: 0018:ffff88808f2a7d40 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90006295000 RDX: 00000000000000a8 RSI: ffffffff85d0b322 RDI: 0000000000000540 RBP: ffff88808f2a7e30 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888098a9adc0 R13: 1ffff11011e54fab R14: ffff8880a625d400 R15: 0000000000000000 FS: 00007f1f0f0ad700(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000561a1bc19e88 CR3: 00000000a6219000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: SYSC_bind net/socket.c:1489 [inline] SyS_bind+0x174/0x1f0 net/socket.c:1475 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f1f107380e9 RSP: 002b:00007f1f0f0ad168 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 RAX: ffffffffffffffda RBX: 00007f1f1084af60 RCX: 00007f1f107380e9 RDX: 0000000000000010 RSI: 0000000020000000 RDI: 0000000000000005 RBP: 00007f1f1079208d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc4a88d2ef R14: 00007f1f0f0ad300 R15: 0000000000022000 Code: 4e 04 0f 88 8f 29 51 01 0f 84 b3 01 00 00 e8 1e 8f 84 fb 48 8d bb 40 05 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 0a 04 00 00 4c 89 e7 48 8b 83 40 05 00 00 65 RIP: dev_put include/linux/netdevice.h:3381 [inline] RSP: ffff88808f2a7d40 RIP: llc_ui_bind+0x5ba/0xa40 net/llc/af_llc.c:427 RSP: ffff88808f2a7d40 ---[ end trace 56eab0ea4d857897 ]--- ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 0f 88 8f 29 51 01 js 0x1512995 6: 0f 84 b3 01 00 00 je 0x1bf c: e8 1e 8f 84 fb callq 0xfb848f2f 11: 48 8d bb 40 05 00 00 lea 0x540(%rbx),%rdi 18: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 1f: fc ff df 22: 48 89 fa mov %rdi,%rdx 25: 48 c1 ea 03 shr $0x3,%rdx * 29: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2d: 0f 85 0a 04 00 00 jne 0x43d 33: 4c 89 e7 mov %r12,%rdi 36: 48 8b 83 40 05 00 00 mov 0x540(%rbx),%rax 3d: 65 gs