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) [ 68.072171][ T5308] Bluetooth: hci0: command tx timeout [ 68.108535][ T5323] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000004: 0000 [#1] SMP KASAN NOPTI [ 68.114062][ T5323] KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027] [ 68.117365][ T5323] CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Not tainted 6.14.0-syzkaller-12245-g91e5bfe317d8 #0 PREEMPT(full) [ 68.122329][ T5323] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 68.130498][ T5323] RIP: 0010:__se_sys_mremap+0x25fa/0x2c00 [ 68.133987][ T5323] 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 [ 68.141801][ T5323] RSP: 0018:ffffc9000d54fb40 EFLAGS: 00010246 [ 68.144213][ T5323] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff92001aa9fca [ 68.147255][ T5323] RDX: ffffc9000e23a000 RSI: 00000000000000b0 RDI: 00000000000000b1 [ 68.150252][ T5323] RBP: ffffc9000d54ff00 R08: ffffffff821d1f14 R09: ffffffff8c26d057 [ 68.153329][ T5323] R10: 0000000000000004 R11: ffff88801fa0a440 R12: 0000200000ffc000 [ 68.156261][ T5323] R13: ffff888012bb3a00 R14: 0000000018000098 R15: ffffc9000d54fcd0 [ 68.159357][ T5323] FS: 00007fe08dc686c0(0000) GS:ffff88808c59c000(0000) knlGS:0000000000000000 [ 68.162980][ T5323] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 68.165719][ T5323] CR2: 00007fe08cf98570 CR3: 00000000532b0000 CR4: 0000000000352ef0 [ 68.169003][ T5323] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 68.172199][ T5323] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 68.175457][ T5323] Call Trace: [ 68.176624][ T5323] [ 68.177716][ T5323] ? __pfx___se_sys_mremap+0x10/0x10 [ 68.179642][ T5323] ? rcu_is_watching+0x15/0xb0 [ 68.181272][ T5323] ? __rseq_handle_notify_resume+0x3c8/0x15d0 [ 68.183513][ T5323] ? __x64_sys_mremap+0x20/0xc0 [ 68.185276][ T5323] do_syscall_64+0xf3/0x230 [ 68.186969][ T5323] ? clear_bhb_loop+0x45/0xa0 [ 68.188754][ T5323] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 68.190878][ T5323] RIP: 0033:0x7fe08cd8d169 [ 68.192688][ T5323] 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 [ 68.200461][ T5323] RSP: 002b:00007fe08dc68038 EFLAGS: 00000246 ORIG_RAX: 0000000000000019 [ 68.203907][ T5323] RAX: ffffffffffffffda RBX: 00007fe08cfa5fa0 RCX: 00007fe08cd8d169 [ 68.206803][ T5323] RDX: 0000000000003000 RSI: 0000000000001000 RDI: 0000200000ffc000 [ 68.209651][ T5323] RBP: 00007fe08ce0e2a0 R08: 0000200000ffd000 R09: 0000000000000000 [ 68.212492][ T5323] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 68.215608][ T5323] R13: 0000000000000000 R14: 00007fe08cfa5fa0 R15: 00007fff94137d68 [ 68.218713][ T5323] [ 68.219977][ T5323] Modules linked in: [ 68.222095][ T5323] ---[ end trace 0000000000000000 ]--- [ 68.238257][ T5323] RIP: 0010:__se_sys_mremap+0x25fa/0x2c00 [ 68.240698][ T5323] 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 [ 68.250635][ T5323] RSP: 0018:ffffc9000d54fb40 EFLAGS: 00010246 [ 68.255088][ T5323] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff92001aa9fca [ 68.258396][ T5323] RDX: ffffc9000e23a000 RSI: 00000000000000b0 RDI: 00000000000000b1 [ 68.262904][ T5323] RBP: ffffc9000d54ff00 R08: ffffffff821d1f14 R09: ffffffff8c26d057 [ 68.265629][ T5323] R10: 0000000000000004 R11: ffff88801fa0a440 R12: 0000200000ffc000 [ 68.269061][ T5323] R13: ffff888012bb3a00 R14: 0000000018000098 R15: ffffc9000d54fcd0 [ 68.273468][ T5323] FS: 00007fe08dc686c0(0000) GS:ffff88808c59c000(0000) knlGS:0000000000000000 [ 68.276664][ T5323] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 68.279205][ T5323] CR2: 00007fe08cf98570 CR3: 00000000532b0000 CR4: 0000000000352ef0 [ 68.283417][ T5323] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 68.287223][ T5323] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 68.290482][ T5323] Kernel panic - not syncing: Fatal exception [ 68.293145][ T5323] Kernel Offset: disabled [ 68.294825][ T5323] Rebooting in 86400 seconds..