sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in; program syz-executor.2 not setting count and/or reply_len properly ------------[ cut here ]------------ WARNING: CPU: 0 PID: 7442 at lib/iov_iter.c:629 _copy_from_iter+0x2b2/0x1140 Modules linked in: CPU: 0 PID: 7442 Comm: syz-executor.2 Not tainted 6.2.0-rc6-next-20230130 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:_copy_from_iter+0x2b2/0x1140 Code: 5d 41 5e 41 5f e9 62 35 32 02 e8 e9 f4 35 ff be 79 02 00 00 48 c7 c7 80 c6 9e 84 e8 68 ad 59 ff e9 51 fe ff ff e8 ce f4 35 ff <0f> 0b 45 31 f6 eb 87 e8 c2 f4 35 ff 31 ff 89 ee e8 29 f0 35 ff 40 RSP: 0018:ffff888042e6f608 EFLAGS: 00010202 RAX: 00000000000018f0 RBX: 0000000000000000 RCX: ffffc90003a0c000 RDX: 0000000000040000 RSI: ffffffff82156982 RDI: 0000000000000001 RBP: 0000000000000390 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffff888042e6f838 R14: 0000000000000390 R15: ffff888042e6f838 FS: 00007f445c4d9700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f51df596547 CR3: 000000000f412000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: copy_page_from_iter+0x251/0x430 blk_rq_map_user_iov+0xb41/0x16c0 blk_rq_map_user_io+0x1d1/0x200 sg_common_write.constprop.0+0xd8d/0x15f0 sg_write.part.0+0x698/0xac0 sg_write+0x8d/0xe0 vfs_write+0x2cf/0xdc0 ksys_write+0x12b/0x260 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f445ef63b19 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f445c4d9188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f445f076f60 RCX: 00007f445ef63b19 RDX: 000000000000002b RSI: 0000000020000380 RDI: 0000000000000007 RBP: 00007f445efbdf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffebd0c955f R14: 00007f445c4d9300 R15: 0000000000022000 irq event stamp: 10855 hardirqs last enabled at (10893): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (10928): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (8180): [] __irq_exit_rcu+0xcc/0x110 softirqs last disabled at (7665): [] __irq_exit_rcu+0xcc/0x110 ---[ end trace 0000000000000000 ]--- sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in; program syz-executor.2 not setting count and/or reply_len properly sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in; program syz-executor.2 not setting count and/or reply_len properly sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in; program syz-executor.2 not setting count and/or reply_len properly sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in; program syz-executor.7 not setting count and/or reply_len properly sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in; program syz-executor.4 not setting count and/or reply_len properly sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in; program syz-executor.7 not setting count and/or reply_len properly perf: interrupt took too long (2590 > 2500), lowering kernel.perf_event_max_sample_rate to 77000 perf: interrupt took too long (3308 > 3237), lowering kernel.perf_event_max_sample_rate to 60000 perf: interrupt took too long (4140 > 4135), lowering kernel.perf_event_max_sample_rate to 48000 UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy misc raw-gadget: fail, usb_gadget_register_driver returned -16 UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy misc raw-gadget: fail, usb_gadget_register_driver returned -16 sit: Src spoofed 0.0.0.156/2002:0:29c:0:9cdf:3f09:: -> 172.20.20.170/5171::2200 sit: Src spoofed 0.0.0.156/2002:0:29c:0:9cdf:3f09:: -> 172.20.20.170/5171::2200 sit: Src spoofed 0.0.0.156/2002:0:29c:0:9cdf:3f09:: -> 172.20.20.170/5171::2200 sit: Src spoofed 0.0.0.156/2002:0:29c:0:9cdf:3f09:: -> 172.20.20.170/5171::2200 sit: Src spoofed 0.0.0.156/2002:0:29c:0:9cdf:3f09:: -> 172.20.20.170/5171::2200 Process accounting resumed