program: r0 = socket$inet_tcp(0x2, 0x1, 0x0) r1 = dup2(r0, r0) mmap$IORING_OFF_SQ_RING(&(0x7f0000ffb000/0x3000)=nil, 0x3000, 0x0, 0x13, r1, 0x0) mremap(&(0x7f0000ffc000/0x4000)=nil, 0x4000, 0x1000, 0x0, &(0x7f0000ffa000/0x1000)=nil) mremap(&(0x7f0000ffc000/0x1000)=nil, 0x1000, 0x3000, 0x0, &(0x7f0000ffd000/0x3000)=nil) [ 68.473329][ T4668] Bluetooth: hci0: command tx timeout [ 68.514871][ T5322] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000004: 0000 [#1] SMP KASAN NOPTI [ 68.519416][ T5322] KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027] [ 68.522425][ T5322] CPU: 0 UID: 0 PID: 5322 Comm: syz.0.0 Not tainted 6.14.0-syzkaller-12245-g91e5bfe317d8 #0 PREEMPT(full) [ 68.526455][ T5322] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 68.530319][ T5322] RIP: 0010:__se_sys_mremap+0x25fa/0x2c00 [ 68.532641][ T5322] Code: c0 0f 85 0e 05 00 00 0f b6 9c 24 20 03 00 00 31 ff 89 de e8 28 0e ab ff 85 db 0f 84 7b 01 00 00 e8 1b 0b ab ff e9 9e 00 00 00 <80> 78 04 00 74 0a bf 20 00 00 00 e8 26 2f 15 00 4c 8b 34 25 20 00 [ 68.539903][ T5322] RSP: 0018:ffffc9000d4c7b40 EFLAGS: 00010246 [ 68.542199][ T5322] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff92001a98fca [ 68.545261][ T5322] RDX: ffffc9000df82000 RSI: 00000000000000b0 RDI: 00000000000000b1 [ 68.548224][ T5322] RBP: ffffc9000d4c7f00 R08: ffffffff821d1f14 R09: ffffffff8c26d057 [ 68.551160][ T5322] R10: 0000000000000004 R11: ffff88801efcc880 R12: 0000200000ffc000 [ 68.554212][ T5322] R13: ffff888012398140 R14: 0000000018000098 R15: ffffc9000d4c7cd0 [ 68.557291][ T5322] FS: 00007fa4f7bf56c0(0000) GS:ffff88808c59c000(0000) knlGS:0000000000000000 [ 68.560592][ T5322] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 68.563051][ T5322] CR2: 00007fa4fb998570 CR3: 0000000043108000 CR4: 0000000000352ef0 [ 68.566092][ T5322] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 68.569117][ T5322] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 68.572267][ T5322] Call Trace: [ 68.573561][ T5322] [ 68.574692][ T5322] ? __pfx___se_sys_mremap+0x10/0x10 [ 68.576883][ T5322] ? rcu_is_watching+0x15/0xb0 [ 68.578836][ T5322] ? __rseq_handle_notify_resume+0x3c8/0x15d0 [ 68.581208][ T5322] ? __x64_sys_mremap+0x20/0xc0 [ 68.583113][ T5322] do_syscall_64+0xf3/0x230 [ 68.584938][ T5322] ? clear_bhb_loop+0x45/0xa0 [ 68.586757][ T5322] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 68.588994][ T5322] RIP: 0033:0x7fa4fb78d169 [ 68.590717][ T5322] 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 [ 68.598005][ T5322] RSP: 002b:00007fa4f7bf5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000019 [ 68.601247][ T5322] RAX: ffffffffffffffda RBX: 00007fa4fb9a5fa0 RCX: 00007fa4fb78d169 [ 68.604165][ T5322] RDX: 0000000000003000 RSI: 0000000000001000 RDI: 0000200000ffc000 [ 68.607004][ T5322] RBP: 00007fa4fb80e2a0 R08: 0000200000ffd000 R09: 0000000000000000 [ 68.609798][ T5322] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 68.612552][ T5322] R13: 0000000000000000 R14: 00007fa4fb9a5fa0 R15: 00007ffd37fcf468 [ 68.615382][ T5322] [ 68.616590][ T5322] Modules linked in: [ 68.618687][ T5322] ---[ end trace 0000000000000000 ]--- [ 68.633101][ T5322] RIP: 0010:__se_sys_mremap+0x25fa/0x2c00 [ 68.635468][ T5322] Code: c0 0f 85 0e 05 00 00 0f b6 9c 24 20 03 00 00 31 ff 89 de e8 28 0e ab ff 85 db 0f 84 7b 01 00 00 e8 1b 0b ab ff e9 9e 00 00 00 <80> 78 04 00 74 0a bf 20 00 00 00 e8 26 2f 15 00 4c 8b 34 25 20 00 [ 68.644254][ T5322] RSP: 0018:ffffc9000d4c7b40 EFLAGS: 00010246 [ 68.646628][ T5322] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff92001a98fca [ 68.649484][ T5322] RDX: ffffc9000df82000 RSI: 00000000000000b0 RDI: 00000000000000b1 [ 68.652685][ T5322] RBP: ffffc9000d4c7f00 R08: ffffffff821d1f14 R09: ffffffff8c26d057 [ 68.655770][ T5322] R10: 0000000000000004 R11: ffff88801efcc880 R12: 0000200000ffc000 [ 68.658755][ T5322] R13: ffff888012398140 R14: 0000000018000098 R15: ffffc9000d4c7cd0 [ 68.662257][ T5322] FS: 00007fa4f7bf56c0(0000) GS:ffff88808c59c000(0000) knlGS:0000000000000000 [ 68.665702][ T5322] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 68.668261][ T5322] CR2: 00007fa4fb97d538 CR3: 0000000043108000 CR4: 0000000000352ef0 [ 68.671764][ T5322] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 68.675197][ T5322] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 68.678144][ T5322] Kernel panic - not syncing: Fatal exception [ 68.680595][ T5322] Kernel Offset: disabled [ 68.682307][ T5322] Rebooting in 86400 seconds..