sg_write: data in/out 316/580 bytes for SCSI command 0x6a-- guessing data in; program syz-executor.2 not setting count and/or reply_len properly ------------[ cut here ]------------ WARNING: CPU: 1 PID: 8024 at lib/iov_iter.c:376 _copy_from_iter+0x2bf/0x1200 Modules linked in: CPU: 1 PID: 8024 Comm: syz-executor.2 Not tainted 6.3.0-rc5-next-20230405 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:_copy_from_iter+0x2bf/0x1200 Code: 5d 41 5e 41 5f e9 d5 16 35 02 e8 7c 68 36 ff be 7c 01 00 00 48 c7 c7 60 ce 9e 84 e8 9b 73 5a ff e9 48 fe ff ff e8 61 68 36 ff <0f> 0b 45 31 f6 eb 87 e8 55 68 36 ff 31 ff 89 ee e8 8c 63 36 ff 40 RSP: 0018:ffff8880146cf608 EFLAGS: 00010212 RAX: 00000000000013a2 RBX: 0000000000000000 RCX: ffffc90002fff000 RDX: 0000000000040000 RSI: ffffffff82154d4f RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880146cf838 R13: ffffea00010df000 R14: 0000000000000244 R15: ffff8880146cf838 FS: 00007fbfa598e700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc4394fe3a4 CR3: 00000000415aa000 CR4: 0000000000350ee0 Call Trace: <TASK> copy_page_from_iter+0xe3/0x180 blk_rq_map_user_iov+0xb39/0x16c0 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+0x2d8/0xdc0 ksys_write+0x12b/0x260 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fbfa8418b19 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:00007fbfa598e188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fbfa852bf60 RCX: 00007fbfa8418b19 RDX: 0000000000000274 RSI: 0000000020000040 RDI: 0000000000000004 RBP: 00007fbfa8472f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffebbbeaedf R14: 00007fbfa598e300 R15: 0000000000022000 </TASK> irq event stamp: 1441 hardirqs last enabled at (1451): [<ffffffff812fb878>] __up_console_sem+0x78/0x80 hardirqs last disabled at (1462): [<ffffffff812fb85d>] __up_console_sem+0x5d/0x80 softirqs last enabled at (1138): [<ffffffff8118db0c>] __irq_exit_rcu+0xcc/0x110 softirqs last disabled at (1021): [<ffffffff8118db0c>] __irq_exit_rcu+0xcc/0x110 ---[ end trace 0000000000000000 ]---