sg_write: data in/out 912/247 bytes for SCSI command 0x10-- guessing data in; program syz-executor.3 not setting count and/or reply_len properly ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4064 at lib/iov_iter.c:629 _copy_from_iter+0x2bf/0x1170 Modules linked in: CPU: 1 PID: 4064 Comm: syz-executor.3 Not tainted 6.2.0-rc3-next-20230111 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:_copy_from_iter+0x2bf/0x1170 Code: 5d 41 5e 41 5f e9 35 4a 32 02 e8 fc 2e 37 ff be 79 02 00 00 48 c7 c7 00 d6 9e 84 e8 cb db 5a ff e9 48 fe ff ff e8 e1 2e 37 ff <0f> 0b 45 31 f6 eb 87 e8 d5 2e 37 ff 31 ff 89 ee e8 9c 2a 37 ff 40 RSP: 0018:ffff888014647608 EFLAGS: 00010212 RAX: 000000000000152d RBX: 0000000000000000 RCX: ffffc900023f5000 RDX: 0000000000040000 RSI: ffffffff8212476f RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff888014647838 R13: ffffea0001178600 R14: 0000000000000390 R15: ffff888014647838 FS: 00007f3e25309700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2c026000 CR3: 0000000042d34000 CR4: 0000000000350ee0 Call Trace: copy_page_from_iter+0xe3/0x180 blk_rq_map_user_iov+0xb15/0x16a0 blk_rq_map_user_io+0x1d1/0x200 sg_common_write.constprop.0+0xd8d/0x15f0 sg_write.part.0+0x698/0xa90 sg_write+0x8d/0xe0 vfs_write+0x2cf/0xdd0 ksys_write+0x12b/0x260 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f3e27d93b19 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:00007f3e25309188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f3e27ea6f60 RCX: 00007f3e27d93b19 RDX: 0000000000000121 RSI: 0000000020000600 RDI: 0000000000000007 RBP: 00007f3e27dedf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffa131647f R14: 00007f3e25309300 R15: 0000000000022000 irq event stamp: 11451 hardirqs last enabled at (11493): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (11544): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (7236): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (7219): [] __irq_exit_rcu+0x11b/0x180 ---[ end trace 0000000000000000 ]--- sg_write: data in/out 912/247 bytes for SCSI command 0x10-- guessing data in; program syz-executor.3 not setting count and/or reply_len properly