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 device lo left promiscuous mode ------------[ cut here ]------------ WARNING: CPU: 1 PID: 40503 at lib/iov_iter.c:629 _copy_from_iter+0x2bf/0x1170 Modules linked in: CPU: 1 PID: 40503 Comm: syz-executor.2 Not tainted 6.2.0-rc3-next-20230109 #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 65 35 32 02 e8 8c 28 37 ff be 79 02 00 00 48 c7 c7 40 d5 9e 84 e8 fb d4 5a ff e9 48 fe ff ff e8 71 28 37 ff <0f> 0b 45 31 f6 eb 87 e8 65 28 37 ff 31 ff 89 ee e8 2c 24 37 ff 40 RSP: 0018:ffff88804d0bf5e8 EFLAGS: 00010216 RAX: 0000000000001123 RBX: 0000000000000000 RCX: ffffc90003fe7000 RDX: 0000000000040000 RSI: ffffffff821249ff RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff88804d0bf818 R13: ffffea0000f47600 R14: 0000000000000390 R15: ffff88804d0bf818 FS: 00007f7466ff7700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2c421000 CR3: 00000000381f2000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: 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+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: 0033:0x7f7469a81b19 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:00007f7466ff7188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f7469b94f60 RCX: 00007f7469a81b19 RDX: 000000000000002b RSI: 0000000020000380 RDI: 0000000000000007 RBP: 00007f7469adbf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffca322c2f R14: 00007f7466ff7300 R15: 0000000000022000 irq event stamp: 5285 hardirqs last enabled at (5319): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (5372): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (2006): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (1893): [] __irq_exit_rcu+0x11b/0x180 ---[ end trace 0000000000000000 ]--- device lo entered promiscuous mode 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 device lo left promiscuous mode device lo left promiscuous mode device lo entered promiscuous mode device lo entered promiscuous mode device lo left promiscuous mode device lo entered promiscuous mode device lo left promiscuous mode device lo entered promiscuous mode device lo left promiscuous mode device lo entered promiscuous mode device lo left promiscuous mode device lo entered promiscuous mode