general protection fault, probably for non-canonical address 0xdffffc0000000004: 0000 [#1] PREEMPT SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027] CPU: 1 PID: 6805 Comm: syz-executor.5 Tainted: G B 5.17.0-rc5-next-20220225 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 RIP: 0010:move_vma.constprop.0+0x9f4/0xf40 Code: 3c 02 00 0f 85 1d 05 00 00 48 8b 73 08 4c 89 e7 e8 31 5e fe ff 48 ba 00 00 00 00 00 fc ff df 48 8d 78 20 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 e0 04 00 00 48 81 48 20 00 00 10 00 e9 fe fc ff RSP: 0018:ffff888045bf7c98 EFLAGS: 00010212 RAX: 0000000000000000 RBX: ffff888042d158f0 RCX: 0000000000000004 RDX: dffffc0000000000 RSI: ffffffff821199cd RDI: 0000000000000020 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff858cc397 R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880171fa300 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000020ffa000 FS: 00007f791445c700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7916ff6000 CR3: 0000000045c2e000 CR4: 0000000000350ee0 Call Trace: SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=6811 comm=syz-executor.6 __do_sys_mremap+0x78f/0x14f0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f7916ee6b19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f791445c188 EFLAGS: 00000246 ORIG_RAX: 0000000000000019 RAX: ffffffffffffffda RBX: 00007f7916ff9f60 RCX: 00007f7916ee6b19 RDX: 0000000000001000 RSI: 0000000000001000 RDI: 0000000020ff9000 RBP: 00007f7916f40f6d R08: 0000000020ffa000 R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff29503baf R14: 00007f791445c300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:move_vma.constprop.0+0x9f4/0xf40 Code: 3c 02 00 0f 85 1d 05 00 00 48 8b 73 08 4c 89 e7 e8 31 5e fe ff 48 ba 00 00 00 00 00 fc ff df 48 8d 78 20 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 e0 04 00 00 48 81 48 20 00 00 10 00 e9 fe fc ff RSP: 0018:ffff888045bf7c98 EFLAGS: 00010212 RAX: 0000000000000000 RBX: ffff888042d158f0 RCX: 0000000000000004 RDX: dffffc0000000000 RSI: ffffffff821199cd RDI: 0000000000000020 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff858cc397 R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880171fa300 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000020ffa000 FS: 00007f791445c700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7916ff6000 CR3: 0000000045c2e000 CR4: 0000000000350ee0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=6811 comm=syz-executor.6 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 6815 Comm: syz-executor.3 Tainted: G B D 5.17.0-rc5-next-20220225 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 Call Trace: dump_stack_lvl+0x8b/0xb3 should_fail.cold+0x5/0xa should_failslab+0x5/0x10 kmem_cache_alloc_trace+0x55/0x3c0 __iomap_dio_rw+0x232/0x1a90 9pnet_fd: p9_fd_create_tcp (6822): problem connecting socket to 127.0.0.1 iomap_dio_rw+0x38/0x90 ext4_file_write_iter+0x9c3/0x1800 new_sync_write+0x437/0x660 kernel write not supported for file [eventfd] (pid: 6627 comm: kworker/1:0) vfs_write+0x7c2/0xad0 __x64_sys_pwrite64+0x1fd/0x250 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f534b478b19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f53489cd188 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 RAX: ffffffffffffffda RBX: 00007f534b58c020 RCX: 00007f534b478b19 RDX: 00000000fffffe5f RSI: 0000000020000000 RDI: 0000000000000003 RBP: 00007f53489cd1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000008040c00 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffd75544fbf R14: 00007f53489cd300 R15: 0000000000022000 kernel write not supported for file [eventfd] (pid: 6 comm: kworker/0:0) FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 6847 Comm: syz-executor.3 Tainted: G B D 5.17.0-rc5-next-20220225 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 Call Trace: dump_stack_lvl+0x8b/0xb3 should_fail.cold+0x5/0xa should_failslab+0x5/0x10 kmem_cache_alloc+0x5b/0x480 create_object.isra.0+0x3a/0xa20 kmem_cache_alloc_trace+0x22e/0x3c0 __iomap_dio_rw+0x232/0x1a90 iomap_dio_rw+0x38/0x90 ext4_file_write_iter+0x9c3/0x1800 new_sync_write+0x437/0x660 vfs_write+0x7c2/0xad0 __x64_sys_pwrite64+0x1fd/0x250 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f534b478b19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f53489cd188 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 RAX: ffffffffffffffda RBX: 00007f534b58c020 RCX: 00007f534b478b19 RDX: 00000000fffffe5f RSI: 0000000020000000 RDI: 0000000000000003 RBP: 00007f53489cd1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000008040c00 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffd75544fbf R14: 00007f53489cd300 R15: 0000000000022000 syz-executor.4 (6850) used greatest stack depth: 23136 bytes left ---------------- Code disassembly (best guess): 0: 3c 02 cmp $0x2,%al 2: 00 0f add %cl,(%rdi) 4: 85 1d 05 00 00 48 test %ebx,0x48000005(%rip) # 0x4800000f a: 8b 73 08 mov 0x8(%rbx),%esi d: 4c 89 e7 mov %r12,%rdi 10: e8 31 5e fe ff callq 0xfffe5e46 15: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx 1c: fc ff df 1f: 48 8d 78 20 lea 0x20(%rax),%rdi 23: 48 89 f9 mov %rdi,%rcx 26: 48 c1 e9 03 shr $0x3,%rcx * 2a: 80 3c 11 00 cmpb $0x0,(%rcx,%rdx,1) <-- trapping instruction 2e: 0f 85 e0 04 00 00 jne 0x514 34: 48 81 48 20 00 00 10 orq $0x100000,0x20(%rax) 3b: 00 3c: e9 .byte 0xe9 3d: fe (bad) 3e: fc cld 3f: ff .byte 0xff