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) [ 68.898344][ T5311] Bluetooth: hci0: command tx timeout [ 68.930956][ T5326] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000004: 0000 [#1] SMP KASAN NOPTI [ 68.936313][ T5326] KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027] [ 68.939542][ T5326] CPU: 0 UID: 0 PID: 5326 Comm: syz.0.0 Not tainted 6.14.0-syzkaller-12245-g91e5bfe317d8 #0 PREEMPT(full) [ 68.943891][ T5326] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 68.952125][ T5326] RIP: 0010:__se_sys_mremap+0x25fa/0x2c00 [ 68.955650][ T5326] 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 [ 68.963357][ T5326] RSP: 0018:ffffc9000d577b40 EFLAGS: 00010246 [ 68.965761][ T5326] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff92001aaefca [ 68.968919][ T5326] RDX: ffffc9000de42000 RSI: 00000000000000b0 RDI: 00000000000000b1 [ 68.971983][ T5326] RBP: ffffc9000d577f00 R08: ffffffff821d1f14 R09: ffffffff8c26d057 [ 68.975163][ T5326] R10: 0000000000000004 R11: ffff888000ea2440 R12: 0000200000ffc000 [ 68.978202][ T5326] R13: ffff888011fd8500 R14: 0000000018000098 R15: ffffc9000d577cd0 [ 68.981254][ T5326] FS: 00007fd5970826c0(0000) GS:ffff88808c59c000(0000) knlGS:0000000000000000 [ 68.984667][ T5326] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 68.987223][ T5326] CR2: 00007fd596398570 CR3: 0000000043c52000 CR4: 0000000000352ef0 [ 68.990333][ T5326] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 68.993418][ T5326] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 68.996506][ T5326] Call Trace: [ 68.997826][ T5326] [ 68.998999][ T5326] ? __pfx___se_sys_mremap+0x10/0x10 [ 69.001049][ T5326] ? rcu_is_watching+0x15/0xb0 [ 69.002900][ T5326] ? __rseq_handle_notify_resume+0x3c8/0x15d0 [ 69.005347][ T5326] ? __x64_sys_mremap+0x20/0xc0 [ 69.007362][ T5326] do_syscall_64+0xf3/0x230 [ 69.009242][ T5326] ? clear_bhb_loop+0x45/0xa0 [ 69.011060][ T5326] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 69.013332][ T5326] RIP: 0033:0x7fd59618d169 [ 69.015145][ T5326] 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 [ 69.022485][ T5326] RSP: 002b:00007fd597082038 EFLAGS: 00000246 ORIG_RAX: 0000000000000019 [ 69.025700][ T5326] RAX: ffffffffffffffda RBX: 00007fd5963a5fa0 RCX: 00007fd59618d169 [ 69.028772][ T5326] RDX: 0000000000003000 RSI: 0000000000001000 RDI: 0000200000ffc000 [ 69.031872][ T5326] RBP: 00007fd59620e2a0 R08: 0000200000ffd000 R09: 0000000000000000 [ 69.035055][ T5326] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 69.038126][ T5326] R13: 0000000000000000 R14: 00007fd5963a5fa0 R15: 00007ffe93a9d048 [ 69.041275][ T5326] [ 69.042550][ T5326] Modules linked in: [ 69.044715][ T5326] ---[ end trace 0000000000000000 ]--- [ 69.062397][ T5326] RIP: 0010:__se_sys_mremap+0x25fa/0x2c00 [ 69.064691][ T5326] 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 [ 69.072612][ T5326] RSP: 0018:ffffc9000d577b40 EFLAGS: 00010246 [ 69.075004][ T5326] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff92001aaefca [ 69.079751][ T5326] RDX: ffffc9000de42000 RSI: 00000000000000b0 RDI: 00000000000000b1 [ 69.083008][ T5326] RBP: ffffc9000d577f00 R08: ffffffff821d1f14 R09: ffffffff8c26d057 [ 69.086108][ T5326] R10: 0000000000000004 R11: ffff888000ea2440 R12: 0000200000ffc000 [ 69.089516][ T5326] R13: ffff888011fd8500 R14: 0000000018000098 R15: ffffc9000d577cd0 [ 69.092579][ T5326] FS: 00007fd5970826c0(0000) GS:ffff88808c59c000(0000) knlGS:0000000000000000 [ 69.096428][ T5326] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 69.099814][ T5326] CR2: 00007fd596398570 CR3: 0000000043c52000 CR4: 0000000000352ef0 [ 69.103223][ T5326] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 69.106331][ T5326] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 69.110109][ T5326] Kernel panic - not syncing: Fatal exception [ 69.112809][ T5326] Kernel Offset: disabled [ 69.114473][ T5326] Rebooting in 86400 seconds..