general protection fault, probably for non-canonical address 0xffff0fff00000000: 0000 [#1] PREEMPT SMP KASAN KASAN: maybe wild-memory-access in range [0xfff89ff800000000-0xfff89ff800000007] CPU: 1 PID: 19 Comm: ksoftirqd/1 Not tainted 6.0.0-rc1-syzkaller-00028-g4dce3b375179 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 RIP: 0010:rcu_do_batch kernel/rcu/tree.c:2245 [inline] RIP: 0010:rcu_core+0x7af/0x1780 kernel/rcu/tree.c:2505 Code: 07 f3 f7 ff 49 8d 7f 08 5e 48 89 f8 48 c1 e8 03 42 80 3c 20 00 0f 85 f8 0b 00 00 49 8b 47 08 4c 89 ff 49 c7 47 08 00 00 00 00 d0 48 c7 c6 f0 2f 32 81 48 c7 c7 c0 4e a9 87 e8 4c eb f7 ff 65 RSP: 0000:ffffc9000014fd58 EFLAGS: 00010246 RAX: ffff0fff00000000 RBX: 0000000000000000 RCX: 603ad66270707a3c RDX: 1ffff1102006cbee RSI: ffffffff81322f8d RDI: ffffc900017e8000 RBP: 0000000000000008 R08: 0000000000000000 R09: ffffffff8b0766df R10: fffffbfff160ecdb R11: 0000000000000001 R12: dffffc0000000000 R13: ffffc9000014fdc8 R14: 0000000000000007 R15: ffffc900017e8000 FS: 0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000007825000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __do_softirq+0x1c0/0x9a9 kernel/softirq.c:571 run_ksoftirqd kernel/softirq.c:934 [inline] run_ksoftirqd+0x2d/0x60 kernel/softirq.c:926 smpboot_thread_fn+0x645/0x9c0 kernel/smpboot.c:164 kthread+0x2ea/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:rcu_do_batch kernel/rcu/tree.c:2245 [inline] RIP: 0010:rcu_core+0x7af/0x1780 kernel/rcu/tree.c:2505 Code: 07 f3 f7 ff 49 8d 7f 08 5e 48 89 f8 48 c1 e8 03 42 80 3c 20 00 0f 85 f8 0b 00 00 49 8b 47 08 4c 89 ff 49 c7 47 08 00 00 00 00 d0 48 c7 c6 f0 2f 32 81 48 c7 c7 c0 4e a9 87 e8 4c eb f7 ff 65 RSP: 0000:ffffc9000014fd58 EFLAGS: 00010246 RAX: ffff0fff00000000 RBX: 0000000000000000 RCX: 603ad66270707a3c RDX: 1ffff1102006cbee RSI: ffffffff81322f8d RDI: ffffc900017e8000 RBP: 0000000000000008 R08: 0000000000000000 R09: ffffffff8b0766df R10: fffffbfff160ecdb R11: 0000000000000001 R12: dffffc0000000000 R13: ffffc9000014fdc8 R14: 0000000000000007 R15: ffffc900017e8000 FS: 0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000007825000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: f3 f7 ff repz idiv %edi 3: 49 8d 7f 08 lea 0x8(%r15),%rdi 7: 5e pop %rsi 8: 48 89 f8 mov %rdi,%rax b: 48 c1 e8 03 shr $0x3,%rax f: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1) 14: 0f 85 f8 0b 00 00 jne 0xc12 1a: 49 8b 47 08 mov 0x8(%r15),%rax 1e: 4c 89 ff mov %r15,%rdi 21: 49 c7 47 08 00 00 00 movq $0x0,0x8(%r15) 28: 00 * 29: ff d0 callq *%rax <-- trapping instruction 2b: 48 c7 c6 f0 2f 32 81 mov $0xffffffff81322ff0,%rsi 32: 48 c7 c7 c0 4e a9 87 mov $0xffffffff87a94ec0,%rdi 39: e8 4c eb f7 ff callq 0xfff7eb8a 3e: 65 gs