program: creat(&(0x7f0000000240)='./file0\x00', 0x148) r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000040)=@req3={0x410000, 0x100000001, 0x210000, 0x1, 0xa}, 0x1c) setsockopt$packet_int(r0, 0x107, 0xf, &(0x7f0000000000)=0x7, 0x4) pipe2$9p(&(0x7f0000001900)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) write$P9_RVERSION(r2, &(0x7f0000000500)=ANY=[@ANYBLOB="1500000065ffff048000000800395032303030"], 0x15) r3 = dup(r2) write$FUSE_BMAP(r3, &(0x7f0000000100)={0x18}, 0x18) write$FUSE_NOTIFY_RETRIEVE(r3, &(0x7f00000000c0)={0x14c}, 0x137) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f00000004c0), 0x10400, &(0x7f0000000700)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESHEX=r3]) chmod(&(0x7f0000000340)='./file0\x00', 0x0) r4 = open$dir(&(0x7f0000000180)='./file0\x00', 0x1, 0x0) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000280)='blkio.bfq.io_wait_time\x00', 0x275a, 0x0) ftruncate(r5, 0x57) sendfile(r4, r5, 0x0, 0x7ffff000) [ 79.080968][ T1312] ieee802154 phy0 wpan0: encryption failed: -22 [ 79.083641][ T1312] ieee802154 phy1 wpan1: encryption failed: -22 [ 79.087145][ T5299] Bluetooth: hci0: command tx timeout [ 79.324160][ T5314] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] SMP KASAN NOPTI [ 79.329333][ T5314] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] [ 79.332898][ T5314] CPU: 0 UID: 0 PID: 5314 Comm: syz.0.0 Not tainted 6.15.0-rc7-syzkaller-00082-g5cdb2c77c4c3 #0 PREEMPT(full) [ 79.337036][ T5314] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 79.341250][ T5314] RIP: 0010:iter_file_splice_write+0xa9b/0x1000 [ 79.343868][ T5314] Code: 00 74 08 4c 89 f7 e8 64 ac e0 ff 49 8b 1e 49 c7 06 00 00 00 00 48 83 c3 08 48 89 d8 48 c1 e8 03 49 be 00 00 00 00 00 fc ff df <42> 80 3c 30 00 44 8b 64 24 04 74 08 48 89 df e8 31 ac e0 ff 4c 8b [ 79.350758][ T5314] RSP: 0018:ffffc9000d29f840 EFLAGS: 00010202 [ 79.352897][ T5314] RAX: 0000000000000001 RBX: 0000000000000008 RCX: ffff88800030c880 [ 79.355893][ T5314] RDX: 0000000000000002 RSI: 0000000000000000 RDI: 7fffffffffffffa8 [ 79.359650][ T5314] RBP: ffffc9000d29fa50 R08: ffff888043e500df R09: 1ffff110087ca01b [ 79.363639][ T5314] R10: dffffc0000000000 R11: ffffffff82013ec0 R12: dffffc0000000000 [ 79.367686][ T5314] R13: 7fffffffffffffa8 R14: dffffc0000000000 R15: ffff888041d37028 [ 79.371740][ T5314] FS: 00007f7734be86c0(0000) GS:ffff88808d6c2000(0000) knlGS:0000000000000000 [ 79.376026][ T5314] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.378839][ T5314] CR2: 000056224a2362e8 CR3: 0000000040996000 CR4: 0000000000352ef0 [ 79.382026][ T5314] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 79.385174][ T5314] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 79.388542][ T5314] Call Trace: [ 79.390039][ T5314] [ 79.391423][ T5314] ? __pfx_iter_file_splice_write+0x10/0x10 [ 79.394012][ T5314] ? rcu_read_lock_any_held+0xb3/0x120 [ 79.396178][ T5314] ? __pfx_iter_file_splice_write+0x10/0x10 [ 79.398368][ T5314] direct_splice_actor+0xfe/0x160 [ 79.400072][ T5314] splice_direct_to_actor+0x5a8/0xcc0 [ 79.401838][ T5314] ? __pfx_direct_splice_actor+0x10/0x10 [ 79.403683][ T5314] ? __pfx_splice_direct_to_actor+0x10/0x10 [ 79.405635][ T5314] ? __pfx_aa_file_perm+0x10/0x10 [ 79.407460][ T5314] do_splice_direct+0x181/0x270 [ 79.409166][ T5314] ? __pfx_do_splice_direct+0x10/0x10 [ 79.411077][ T5314] ? __pfx_direct_file_splice_eof+0x10/0x10 [ 79.413283][ T5314] ? rw_verify_area+0x258/0x650 [ 79.415158][ T5314] do_sendfile+0x4da/0x7d0 [ 79.416902][ T5314] ? __pfx_do_sendfile+0x10/0x10 [ 79.418967][ T5314] ? rcu_is_watching+0x15/0xb0 [ 79.423946][ T5314] ? __rseq_handle_notify_resume+0x37e/0x11f0 [ 79.426568][ T5314] __se_sys_sendfile64+0x13e/0x190 [ 79.428751][ T5314] ? rcu_is_watching+0x15/0xb0 [ 79.430647][ T5314] ? __pfx___se_sys_sendfile64+0x10/0x10 [ 79.432888][ T5314] ? do_syscall_64+0xba/0x210 [ 79.434802][ T5314] do_syscall_64+0xf6/0x210 [ 79.436625][ T5314] ? clear_bhb_loop+0x60/0xb0 [ 79.438625][ T5314] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 79.441204][ T5314] RIP: 0033:0x7f7733d8e969 [ 79.442799][ T5314] 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 [ 79.450530][ T5314] RSP: 002b:00007f7734be8038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 [ 79.454016][ T5314] RAX: ffffffffffffffda RBX: 00007f7733fb5fa0 RCX: 00007f7733d8e969 [ 79.457124][ T5314] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 0000000000000008 [ 79.460247][ T5314] RBP: 00007f7733e10ab1 R08: 0000000000000000 R09: 0000000000000000 [ 79.463551][ T5314] R10: 000000007ffff000 R11: 0000000000000246 R12: 0000000000000000 [ 79.466422][ T5314] R13: 0000000000000000 R14: 00007f7733fb5fa0 R15: 00007ffc2fb681b8 [ 79.469286][ T5314] [ 79.470601][ T5314] Modules linked in: [ 79.472594][ T5314] ---[ end trace 0000000000000000 ]--- [ 79.480030][ T5314] RIP: 0010:iter_file_splice_write+0xa9b/0x1000 [ 79.482821][ T5314] Code: 00 74 08 4c 89 f7 e8 64 ac e0 ff 49 8b 1e 49 c7 06 00 00 00 00 48 83 c3 08 48 89 d8 48 c1 e8 03 49 be 00 00 00 00 00 fc ff df <42> 80 3c 30 00 44 8b 64 24 04 74 08 48 89 df e8 31 ac e0 ff 4c 8b [ 79.491930][ T5314] RSP: 0018:ffffc9000d29f840 EFLAGS: 00010202 [ 79.495076][ T5314] RAX: 0000000000000001 RBX: 0000000000000008 RCX: ffff88800030c880 [ 79.498246][ T5314] RDX: 0000000000000002 RSI: 0000000000000000 RDI: 7fffffffffffffa8 [ 79.501599][ T5314] RBP: ffffc9000d29fa50 R08: ffff888043e500df R09: 1ffff110087ca01b [ 79.504975][ T5314] R10: dffffc0000000000 R11: ffffffff82013ec0 R12: dffffc0000000000 [ 79.508139][ T5314] R13: 7fffffffffffffa8 R14: dffffc0000000000 R15: ffff888041d37028 [ 79.512180][ T5314] FS: 00007f7734be86c0(0000) GS:ffff88808d6c2000(0000) knlGS:0000000000000000 [ 79.516105][ T5314] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.518872][ T5314] CR2: 000056224a2362e8 CR3: 0000000040996000 CR4: 0000000000352ef0 [ 79.522483][ T5314] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 79.525978][ T5314] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 79.530178][ T5314] Kernel panic - not syncing: Fatal exception [ 79.533070][ T5314] Kernel Offset: disabled [ 79.534938][ T5314] Rebooting in 86400 seconds..