general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 1 PID: 16547 Comm: udevd Not tainted 5.5.0-syzkaller #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 RIP: 0010:do_last fs/namei.c:3205 [inline] RIP: 0010:path_openat+0x281/0x2fb0 fs/namei.c:3476 Code: ff df 48 c1 ea 03 80 3c 02 00 0f 85 41 25 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5c 24 58 48 8d 7b 04 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 39 RSP: 0018:ffffc900028877d8 EFLAGS: 00010247 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff81c26989 RDX: 0000000000000000 RSI: ffffffff81c26996 RDI: 0000000000000004 RBP: ffffc90002887920 R08: ffff88800d005900 R09: ffff88800d006190 R10: fffffbfff1505ce0 R11: ffffffff8a82e707 R12: ffff88801c4461e0 R13: ffff88800d005900 R14: ffffc90002887b48 R15: ffffc90002887960 FS: 00007fd3e989c7a0(0000) GS:ffff88802d100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f20eb300000 CR3: 000000005fb0e000 CR4: 0000000000340ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: do_filp_open+0x1a1/0x280 fs/namei.c:3506 do_open_execat+0x137/0x690 fs/exec.c:856 open_exec+0x47/0x80 fs/exec.c:888 load_elf_binary+0x60a/0x5310 fs/binfmt_elf.c:759 search_binary_handler fs/exec.c:1658 [inline] search_binary_handler+0x16d/0x570 fs/exec.c:1635 exec_binprm fs/exec.c:1701 [inline] __do_execve_file.isra.0+0x1329/0x22b0 fs/exec.c:1821 do_execveat_common fs/exec.c:1867 [inline] do_execve fs/exec.c:1884 [inline] __do_sys_execve fs/exec.c:1960 [inline] __se_sys_execve fs/exec.c:1955 [inline] __x64_sys_execve+0x8f/0xc0 fs/exec.c:1955 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fd3e8f80207 Code: 77 19 f4 48 89 d7 44 89 c0 0f 05 48 3d 00 f0 ff ff 76 e0 f7 d8 64 41 89 01 eb d8 f7 d8 64 41 89 01 eb df b8 3b 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 02 f3 c3 48 8b 15 00 8c 2d 00 f7 d8 64 89 02 RSP: 002b:00007fff93b51ba8 EFLAGS: 00000202 ORIG_RAX: 000000000000003b RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 00007fd3e8f80207 RDX: 0000000002556200 RSI: 00007fff93b51ca0 RDI: 00007fff93b52cb0 RBP: 0000000000625500 R08: 0000000000004865 R09: 0000000000004865 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000002556200 R13: 0000000000000007 R14: 00000000023b5030 R15: 0000000000000005 Modules linked in: ---[ end trace b9db036d9277297b ]--- RIP: 0010:do_last fs/namei.c:3205 [inline] RIP: 0010:path_openat+0x281/0x2fb0 fs/namei.c:3476 Code: ff df 48 c1 ea 03 80 3c 02 00 0f 85 41 25 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5c 24 58 48 8d 7b 04 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 39 RSP: 0018:ffffc900028877d8 EFLAGS: 00010247 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff81c26989 RDX: 0000000000000000 RSI: ffffffff81c26996 RDI: 0000000000000004 RBP: ffffc90002887920 R08: ffff88800d005900 R09: ffff88800d006190 R10: fffffbfff1505ce0 R11: ffffffff8a82e707 R12: ffff88801c4461e0 R13: ffff88800d005900 R14: ffffc90002887b48 R15: ffffc90002887960 FS: 00007fd3e989c7a0(0000) GS:ffff88802d100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f20eb300000 CR3: 000000005fb0e000 CR4: 0000000000340ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600