program: r0 = open_tree(0xffffffffffffff9c, &(0x7f0000000000)='.\x00', 0x89901) unshare(0x22020600) (async) r1 = socket$vsock_stream(0x28, 0x1, 0x0) setsockopt$SO_VM_SOCKETS_BUFFER_MIN_SIZE(r1, 0x28, 0x8, &(0x7f0000000100)=0xfffffffffffffffe, 0x112) (async) r2 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901) mknodat(0xffffffffffffff9c, &(0x7f00000000c0)='./file2\x00', 0x81c0, 0x0) (async) mount$cgroup(0x0, &(0x7f0000000000)='./file2\x00', &(0x7f0000000080), 0x200040, &(0x7f0000000100)={[{@name={'name', 0x3d, 'cpuset_v2_mode'}}, {@name={'name', 0x3d, 'cpuset_v2_mode'}}]}) r3 = bpf$MAP_CREATE_CONST_STR(0x0, &(0x7f0000000240)={0x2, 0x4, 0x8, 0x1, 0x80, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) bpf$PROG_LOAD(0x5, &(0x7f0000000140)={0xd, 0x10, &(0x7f0000000000)=@ringbuf={{0x18, 0x8, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x20}, {{0x18, 0x1, 0x1, 0x0, r3}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0x1ab92b}, {0x85, 0x0, 0x0, 0x8}, {0x4}}, {{0x5, 0x0, 0x4, 0x9, 0x0, 0x1, 0x2000}}, [@call={0x85, 0x0, 0x0, 0xba}], {{0x7, 0x1, 0xb, 0x8}, {0x6, 0x0, 0x5, 0x9}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f0000000980)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x2a, '\x00', 0x0, @sock_ops=0x1d, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffffffe, @void, @value}, 0x94) move_mount(r2, 0x0, r0, 0x0, 0x46) [ 68.970755][ T5300] Bluetooth: hci0: command tx timeout [ 68.985931][ T5314] ======================================================= [ 68.985931][ T5314] WARNING: The mand mount option has been deprecated and [ 68.985931][ T5314] and is ignored by this kernel. Remove the mand [ 68.985931][ T5314] option from the mount to silence this warning. [ 68.985931][ T5314] ======================================================= [ 69.038318][ T5315] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] SMP KASAN NOPTI [ 69.043579][ T5315] KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037] [ 69.047242][ T5315] CPU: 0 UID: 0 PID: 5315 Comm: syz.0.0 Not tainted 6.15.0-syzkaller-03589-gfeacb1774bd5 #0 PREEMPT(full) [ 69.051842][ T5315] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 69.056139][ T5315] RIP: 0010:do_move_mount+0x27d/0xb10 [ 69.058551][ T5315] Code: e8 d8 06 82 ff 41 be ea ff ff ff 49 bd 00 00 00 00 00 fc ff df 48 8b 6c 24 18 4c 8b 7c 24 08 48 8d 5d 48 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 94 e7 e4 ff 48 8b 1b 31 ff 48 89 [ 69.066550][ T5315] RSP: 0018:ffffc9000d47fd30 EFLAGS: 00010206 [ 69.068687][ T5315] RAX: 0000000000000006 RBX: 0000000000000032 RCX: ffff888000a28000 [ 69.072254][ T5315] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000004 [ 69.076493][ T5315] RBP: ffffffffffffffea R08: ffffffff8de1683b R09: 1ffffffff1bc2d07 [ 69.079776][ T5315] R10: dffffc0000000000 R11: fffffbfff1bc2d08 R12: 0000000000000004 [ 69.083134][ T5315] R13: dffffc0000000000 R14: 00000000ffffffea R15: ffff88803351d300 [ 69.086697][ T5315] FS: 00007f50e99c66c0(0000) GS:ffff88808d28c000(0000) knlGS:0000000000000000 [ 69.090467][ T5315] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 69.093268][ T5315] CR2: 00007f50e99c5fc8 CR3: 0000000042710000 CR4: 0000000000352ef0 [ 69.096628][ T5315] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 69.100047][ T5315] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 69.103519][ T5315] Call Trace: [ 69.104961][ T5315] [ 69.106230][ T5315] __se_sys_move_mount+0x413/0x590 [ 69.108343][ T5315] ? __pfx___se_sys_move_mount+0x10/0x10 [ 69.110553][ T5315] ? rcu_is_watching+0x15/0xb0 [ 69.112492][ T5315] ? do_syscall_64+0xbe/0x3b0 [ 69.114392][ T5315] ? __x64_sys_move_mount+0x20/0xc0 [ 69.116597][ T5315] do_syscall_64+0xfa/0x3b0 [ 69.118365][ T5315] ? lockdep_hardirqs_on+0x9c/0x150 [ 69.120303][ T5315] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 69.122705][ T5315] ? clear_bhb_loop+0x60/0xb0 [ 69.124563][ T5315] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 69.126674][ T5315] RIP: 0033:0x7f50e8b8e969 [ 69.128437][ T5315] 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 a8 ff ff ff f7 d8 64 89 01 48 [ 69.136041][ T5315] RSP: 002b:00007f50e99c6038 EFLAGS: 00000246 ORIG_RAX: 00000000000001ad [ 69.139502][ T5315] RAX: ffffffffffffffda RBX: 00007f50e8db6080 RCX: 00007f50e8b8e969 [ 69.142818][ T5315] RDX: 0000000000000003 RSI: 0000000000000000 RDI: 0000000000000005 [ 69.146173][ T5315] RBP: 00007f50e8c10ab1 R08: 0000000000000046 R09: 0000000000000000 [ 69.149378][ T5315] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 69.152760][ T5315] R13: 0000000000000000 R14: 00007f50e8db6080 R15: 00007fffe4d3be48 [ 69.156093][ T5315] [ 69.157394][ T5315] Modules linked in: [ 69.160059][ T5315] ---[ end trace 0000000000000000 ]--- [ 69.167237][ T5314] cgroup: name respecified [ 69.170024][ T5315] RIP: 0010:do_move_mount+0x27d/0xb10 [ 69.172367][ T5315] Code: e8 d8 06 82 ff 41 be ea ff ff ff 49 bd 00 00 00 00 00 fc ff df 48 8b 6c 24 18 4c 8b 7c 24 08 48 8d 5d 48 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 94 e7 e4 ff 48 8b 1b 31 ff 48 89 [ 69.181671][ T5315] RSP: 0018:ffffc9000d47fd30 EFLAGS: 00010206 [ 69.184426][ T5315] RAX: 0000000000000006 RBX: 0000000000000032 RCX: ffff888000a28000 [ 69.187764][ T5315] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000004 [ 69.191520][ T5315] RBP: ffffffffffffffea R08: ffffffff8de1683b R09: 1ffffffff1bc2d07 [ 69.194990][ T5315] R10: dffffc0000000000 R11: fffffbfff1bc2d08 R12: 0000000000000004 [ 69.198294][ T5315] R13: dffffc0000000000 R14: 00000000ffffffea R15: ffff88803351d300 [ 69.202228][ T5315] FS: 00007f50e99c66c0(0000) GS:ffff88808d28c000(0000) knlGS:0000000000000000 [ 69.206164][ T5315] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 69.209631][ T5315] CR2: 00007f50e8d84538 CR3: 0000000042710000 CR4: 0000000000352ef0 [ 69.213046][ T5315] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 69.216055][ T5315] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 69.219805][ T5315] Kernel panic - not syncing: Fatal exception [ 69.222784][ T5315] Kernel Offset: disabled [ 69.224652][ T5315] Rebooting in 86400 seconds..