sg_write: data in/out 813/2552 bytes for SCSI command 0xa6-- guessing data in; program syz-executor.3 not setting count and/or reply_len properly ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6830 at lib/iov_iter.c:629 _copy_from_iter+0x2f1/0x1130 Modules linked in: CPU: 1 PID: 6830 Comm: syz-executor.3 Not tainted 6.1.0-rc7-next-20221130 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:_copy_from_iter+0x2f1/0x1130 Code: 37 ff 44 89 f3 e9 2f ff ff ff e8 4a 2f 37 ff be 79 02 00 00 48 c7 c7 80 b9 9e 84 e8 29 97 5a ff e9 13 fe ff ff e8 2f 2f 37 ff <0f> 0b 45 31 f6 e9 77 ff ff ff e8 20 2f 37 ff 31 ff 89 ee e8 e7 2a RSP: 0018:ffff88804624f5e8 EFLAGS: 00010212 RAX: 0000000000000ece RBX: 0000000000000000 RCX: ffffc90003bef000 RDX: 0000000000040000 RSI: ffffffff8211e9c1 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 00000000000009f8 R13: ffffea0000889600 R14: 00000000000009f8 R15: ffff88804624f818 FS: 00007fe95fcb6700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b3203c000 CR3: 00000000185fa000 CR4: 0000000000350ee0 Call Trace: <TASK> copy_page_from_iter+0xe3/0x180 blk_rq_map_user_iov+0xb0c/0x1650 blk_rq_map_user_io+0x1ee/0x220 sg_common_write.constprop.0+0xd84/0x15e0 sg_write.part.0+0x706/0xb20 sg_write+0x88/0xe0 vfs_write+0x358/0xe40 ksys_write+0x12b/0x260 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fe962740b19 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:00007fe95fcb6188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fe962853f60 RCX: 00007fe962740b19 RDX: 0000000000000a28 RSI: 0000000020000480 RDI: 0000000000000004 RBP: 00007fe96279af6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe2566aa1f R14: 00007fe95fcb6300 R15: 0000000000022000 </TASK> irq event stamp: 2505 hardirqs last enabled at (2515): [<ffffffff812e1068>] __up_console_sem+0x78/0x80 hardirqs last disabled at (2526): [<ffffffff812e104d>] __up_console_sem+0x5d/0x80 softirqs last enabled at (2354): [<ffffffff8118333b>] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (2349): [<ffffffff8118333b>] __irq_exit_rcu+0x11b/0x180 ---[ end trace 0000000000000000 ]--- sg_write: data in/out 813/2552 bytes for SCSI command 0xa6-- guessing data in; program syz-executor.3 not setting count and/or reply_len properly Bluetooth: hci3: command 0x0406 tx timeout Bluetooth: hci1: command 0x0406 tx timeout