program: creat(&(0x7f0000000240)='./file0\x00', 0x0) pipe2$9p(&(0x7f0000001900)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) write$P9_RVERSION(r1, &(0x7f0000000500)=ANY=[@ANYBLOB="1500000065ffff048000000800395032303030"], 0x15) r2 = dup(r1) write$FUSE_BMAP(r2, &(0x7f0000000100)={0x18}, 0x18) write$FUSE_NOTIFY_RETRIEVE(r2, &(0x7f00000000c0)={0x14c}, 0x137) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f00000004c0), 0x10400, &(0x7f0000000700)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r0, @ANYBLOB=',wfdno=', @ANYRESHEX=r2]) chmod(&(0x7f0000000140)='./file0\x00', 0x0) r3 = open$dir(&(0x7f0000000140)='./file0\x00', 0x1, 0x181) r4 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000280)='blkio.bfq.io_wait_time\x00', 0x275a, 0x0) r5 = openat$vga_arbiter(0xffffffffffffff9c, &(0x7f0000000080), 0x1c0002, 0x0) write$vga_arbiter(r5, &(0x7f0000000000)=ANY=[@ANYBLOB='lock io'], 0xc) write$vga_arbiter(r5, &(0x7f0000000040)=ANY=[@ANYBLOB="756e6c6f636b20f7d4796c598a696f2b6d656d00"], 0xe) ftruncate(r4, 0x80) sendfile(r3, r4, 0x0, 0x7ffff000) creat(&(0x7f0000000240)='./file0\x00', 0x0) (async) pipe2$9p(&(0x7f0000001900), 0x0) (async) write$P9_RVERSION(r1, &(0x7f0000000500)=ANY=[@ANYBLOB="1500000065ffff048000000800395032303030"], 0x15) (async) dup(r1) (async) write$FUSE_BMAP(r2, &(0x7f0000000100)={0x18}, 0x18) (async) write$FUSE_NOTIFY_RETRIEVE(r2, &(0x7f00000000c0)={0x14c}, 0x137) (async) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f00000004c0), 0x10400, &(0x7f0000000700)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r0, @ANYBLOB=',wfdno=', @ANYRESHEX=r2]) (async) chmod(&(0x7f0000000140)='./file0\x00', 0x0) (async) open$dir(&(0x7f0000000140)='./file0\x00', 0x1, 0x181) (async) openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000280)='blkio.bfq.io_wait_time\x00', 0x275a, 0x0) (async) openat$vga_arbiter(0xffffffffffffff9c, &(0x7f0000000080), 0x1c0002, 0x0) (async) write$vga_arbiter(r5, &(0x7f0000000000)=ANY=[@ANYBLOB='lock io'], 0xc) (async) write$vga_arbiter(r5, &(0x7f0000000040)=ANY=[@ANYBLOB="756e6c6f636b20f7d4796c598a696f2b6d656d00"], 0xe) (async) ftruncate(r4, 0x80) (async) sendfile(r3, r4, 0x0, 0x7ffff000) (async) [ 75.875579][ T5300] Bluetooth: hci0: command tx timeout [ 75.975483][ T5316] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 75.979865][ T5316] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] [ 75.982388][ T5316] CPU: 0 UID: 0 PID: 5316 Comm: syz.0.0 Not tainted 6.13.0-syzkaller-07267-g405057718a1f #0 [ 75.985476][ T5316] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 75.989116][ T5316] RIP: 0010:iter_file_splice_write+0xe07/0x1510 [ 75.991338][ T5316] Code: 00 00 fc ff df 41 80 3c 06 00 49 89 c6 74 08 4c 89 e7 e8 8c 47 df ff 49 c7 04 24 00 00 00 00 48 83 c3 08 48 89 d8 48 c1 e8 03 <42> 80 3c 30 00 74 08 48 89 df e8 7a 46 df ff 48 8b 44 24 20 48 8b [ 75.997872][ T5316] RSP: 0018:ffffc9000d447780 EFLAGS: 00010202 [ 76.000026][ T5316] RAX: 0000000000000001 RBX: 0000000000000008 RCX: 0000000000000005 [ 76.002697][ T5316] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 7fffffffffffffbc [ 76.005307][ T5316] RBP: ffffc9000d447a30 R08: ffffffff8246da44 R09: 1ffff1100a59c01b [ 76.007956][ T5316] R10: dffffc0000000000 R11: ffffffff82035df0 R12: ffff888036916838 [ 76.010609][ T5316] R13: 0000000000000000 R14: dffffc0000000000 R15: 7fffffffffffffbc [ 76.012903][ T5316] FS: 00007f6aee7b96c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 [ 76.015742][ T5316] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.017824][ T5316] CR2: 00007f6aee776fe0 CR3: 0000000041124000 CR4: 0000000000352ef0 [ 76.020294][ T5316] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 76.023165][ T5316] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 76.026132][ T5316] Call Trace: [ 76.027369][ T5316] [ 76.028327][ T5316] ? __die_body+0x5f/0xb0 [ 76.029599][ T5316] ? die_addr+0xb0/0xe0 [ 76.030863][ T5316] ? exc_general_protection+0x3dd/0x5d0 [ 76.032888][ T5316] ? asm_exc_general_protection+0x26/0x30 [ 76.034964][ T5316] ? __pfx_zero_pipe_buf_release+0x10/0x10 [ 76.037107][ T5316] ? iter_file_splice_write+0xd84/0x1510 [ 76.039238][ T5316] ? iter_file_splice_write+0xe07/0x1510 [ 76.041292][ T5316] ? __pfx_iter_file_splice_write+0x10/0x10 [ 76.043407][ T5316] ? rcu_read_lock_any_held+0xb7/0x160 [ 76.045268][ T5316] ? __pfx_iter_file_splice_write+0x10/0x10 [ 76.047329][ T5316] direct_splice_actor+0x11b/0x220 [ 76.049038][ T5316] splice_direct_to_actor+0x586/0xc80 [ 76.051022][ T5316] ? __pfx_direct_splice_actor+0x10/0x10 [ 76.052907][ T5316] ? __pfx_splice_direct_to_actor+0x10/0x10 [ 76.055069][ T5316] ? __fget_files+0x2a/0x410 [ 76.056585][ T5316] ? __pfx_lock_release+0x10/0x10 [ 76.058285][ T5316] do_splice_direct+0x289/0x3e0 [ 76.059884][ T5316] ? __pfx_do_splice_direct+0x10/0x10 [ 76.061690][ T5316] ? __pfx_direct_file_splice_eof+0x10/0x10 [ 76.063924][ T5316] ? rw_verify_area+0x243/0x630 [ 76.065781][ T5316] do_sendfile+0x564/0x8a0 [ 76.067302][ T5316] ? __pfx_do_sendfile+0x10/0x10 [ 76.069040][ T5316] ? __rseq_handle_notify_resume+0x34d/0x14e0 [ 76.071107][ T5316] __se_sys_sendfile64+0x17c/0x1e0 [ 76.073028][ T5316] ? __pfx___se_sys_sendfile64+0x10/0x10 [ 76.075034][ T5316] ? do_syscall_64+0x100/0x230 [ 76.076691][ T5316] ? do_syscall_64+0xb6/0x230 [ 76.078357][ T5316] do_syscall_64+0xf3/0x230 [ 76.079978][ T5316] ? clear_bhb_loop+0x35/0x90 [ 76.081736][ T5316] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.083944][ T5316] RIP: 0033:0x7f6aed98cd29 [ 76.085618][ T5316] 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 [ 76.092068][ T5316] RSP: 002b:00007f6aee7b9038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 [ 76.095008][ T5316] RAX: ffffffffffffffda RBX: 00007f6aedba5fa0 RCX: 00007f6aed98cd29 [ 76.097869][ T5316] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000007 [ 76.100730][ T5316] RBP: 00007f6aeda0e2a0 R08: 0000000000000000 R09: 0000000000000000 [ 76.103458][ T5316] R10: 000000007ffff000 R11: 0000000000000246 R12: 0000000000000000 [ 76.106261][ T5316] R13: 0000000000000000 R14: 00007f6aedba5fa0 R15: 00007ffc598fb4d8 [ 76.108880][ T5316] [ 76.109951][ T5316] Modules linked in: [ 76.111909][ T5316] ---[ end trace 0000000000000000 ]--- [ 76.119993][ T5316] RIP: 0010:iter_file_splice_write+0xe07/0x1510 [ 76.122956][ T5316] Code: 00 00 fc ff df 41 80 3c 06 00 49 89 c6 74 08 4c 89 e7 e8 8c 47 df ff 49 c7 04 24 00 00 00 00 48 83 c3 08 48 89 d8 48 c1 e8 03 <42> 80 3c 30 00 74 08 48 89 df e8 7a 46 df ff 48 8b 44 24 20 48 8b [ 76.130764][ T5316] RSP: 0018:ffffc9000d447780 EFLAGS: 00010202 [ 76.133476][ T5316] RAX: 0000000000000001 RBX: 0000000000000008 RCX: 0000000000000005 [ 76.136448][ T5316] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 7fffffffffffffbc [ 76.139396][ T5316] RBP: ffffc9000d447a30 R08: ffffffff8246da44 R09: 1ffff1100a59c01b [ 76.142654][ T5316] R10: dffffc0000000000 R11: ffffffff82035df0 R12: ffff888036916838 [ 76.145579][ T5316] R13: 0000000000000000 R14: dffffc0000000000 R15: 7fffffffffffffbc [ 76.148406][ T5316] FS: 00007f6aee7b96c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 [ 76.152175][ T5316] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.154613][ T5316] CR2: 00007f6aee776fe0 CR3: 0000000041124000 CR4: 0000000000352ef0 [ 76.157576][ T5316] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 76.160511][ T5316] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 76.163855][ T5316] Kernel panic - not syncing: Fatal exception [ 76.166332][ T5316] Kernel Offset: disabled [ 76.167843][ T5316] Rebooting in 86400 seconds..