general protection fault, probably for non-canonical address 0xdffffc000000006a: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000350-0x0000000000000357] CPU: 1 PID: 4125 Comm: systemd-udevd Not tainted 5.7.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:rose_send_frame+0x1dd/0x2f0 net/rose/rose_link.c:101 Code: 48 c1 ea 03 80 3c 02 00 0f 85 06 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 6b 20 48 8d bd 50 03 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 ea 00 00 00 4c 8b bd 50 03 00 00 e9 77 fe ff ff RSP: 0018:ffffc90000da8b00 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: ffff8880a7747000 RCX: ffffffff86fe8de3 RDX: 000000000000006a RSI: ffffffff86fe8f52 RDI: 0000000000000350 RBP: 0000000000000000 R08: ffff88809ebde3c0 R09: ffffed1014fa2b9d R10: ffff8880a7d15ce3 R11: ffffed1014fa2b9c R12: ffff8880a7747000 R13: 0000000000000078 R14: ffff8880a70fa040 R15: 0000000000000010 FS: 00007f62d9a0b8c0(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000b90004 CR3: 000000009ea12000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rose_transmit_clear_request+0x1de/0x290 net/rose/rose_link.c:255 rose_rx_call_request+0x488/0x1960 net/rose/af_rose.c:996 rose_loopback_timer+0x15d/0x470 net/rose/rose_loopback.c:100 call_timer_fn+0x1ac/0x780 kernel/time/timer.c:1404 expire_timers kernel/time/timer.c:1449 [inline] __run_timers kernel/time/timer.c:1773 [inline] __run_timers kernel/time/timer.c:1740 [inline] run_timer_softirq+0x623/0x1600 kernel/time/timer.c:1786 __do_softirq+0x26c/0x9f7 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x192/0x1d0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:546 [inline] smp_apic_timer_interrupt+0x19e/0x600 arch/x86/kernel/apic/apic.c:1140 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829 RIP: 0010:__sanitizer_cov_trace_pc+0x22/0x50 kernel/kcov.c:187 Code: 0f 1f 84 00 00 00 00 00 65 48 8b 04 25 00 1f 02 00 65 8b 15 a8 e0 8e 7e 81 e2 00 01 1f 00 48 8b 34 24 75 2b 8b 90 d8 13 00 00 <83> fa 02 75 20 48 8b 88 e0 13 00 00 8b 80 dc 13 00 00 48 8b 11 48 RSP: 0018:ffffc90001477838 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: ffff88809ebde3c0 RBX: 0000000000000005 RCX: ffffffff8360b098 RDX: 0000000000000000 RSI: ffffffff8360b0ab RDI: 0000000000000005 RBP: ffff88809f3a1580 R08: ffff88809ebde3c0 R09: fffffbfff19067dd R10: ffffffff8c833ee7 R11: fffffbfff19067dc R12: 0000000000000001 R13: 0000000000000328 R14: dffffc0000000000 R15: 0000000000000000 tomoyo_domain_quota_is_ok+0x31b/0x500 security/tomoyo/util.c:1070 tomoyo_supervisor+0x2d5/0xee0 security/tomoyo/common.c:2089 tomoyo_audit_path_log security/tomoyo/file.c:168 [inline] tomoyo_path_permission security/tomoyo/file.c:587 [inline] tomoyo_path_permission+0x257/0x360 security/tomoyo/file.c:573 tomoyo_path_perm+0x2f6/0x400 security/tomoyo/file.c:838 security_inode_getattr+0xeb/0x150 security/security.c:1273 vfs_getattr+0x22/0x60 fs/stat.c:117 vfs_statx+0x142/0x1e0 fs/stat.c:201 vfs_lstat include/linux/fs.h:3284 [inline] __do_sys_newlstat+0x96/0x120 fs/stat.c:364 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x49/0xb3 RIP: 0033:0x7f62d887e335 Code: 69 db 2b 00 64 c7 00 16 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 83 ff 01 48 89 f0 77 30 48 89 c7 48 89 d6 b8 06 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 03 f3 c3 90 48 8b 15 31 db 2b 00 f7 d8 64 89 RSP: 002b:00007ffe39fcab48 EFLAGS: 00000246 ORIG_RAX: 0000000000000006 RAX: ffffffffffffffda RBX: 000055b9f3f46c70 RCX: 00007f62d887e335 RDX: 00007ffe39fcab80 RSI: 00007ffe39fcab80 RDI: 000055b9f3f45c70 RBP: 00007ffe39fcac40 R08: 00007f62d8b3d228 R09: 0000000000001010 R10: 00007f62d8b3cb58 R11: 0000000000000246 R12: 000055b9f3f45c70 R13: 000055b9f3f45c90 R14: 000055b9f3f2221b R15: 000055b9f3f22220 Modules linked in: ---[ end trace 966005b88254e728 ]--- RIP: 0010:rose_send_frame+0x1dd/0x2f0 net/rose/rose_link.c:101 Code: 48 c1 ea 03 80 3c 02 00 0f 85 06 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 6b 20 48 8d bd 50 03 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 ea 00 00 00 4c 8b bd 50 03 00 00 e9 77 fe ff ff RSP: 0018:ffffc90000da8b00 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: ffff8880a7747000 RCX: ffffffff86fe8de3 RDX: 000000000000006a RSI: ffffffff86fe8f52 RDI: 0000000000000350 RBP: 0000000000000000 R08: ffff88809ebde3c0 R09: ffffed1014fa2b9d R10: ffff8880a7d15ce3 R11: ffffed1014fa2b9c R12: ffff8880a7747000 R13: 0000000000000078 R14: ffff8880a70fa040 R15: 0000000000000010 FS: 00007f62d9a0b8c0(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000b90004 CR3: 000000009ea12000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400