No source specified sg_write: data in/out 912/1 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: 25928 at lib/iov_iter.c:364 _copy_from_iter+0x2b2/0x1140 Modules linked in: CPU: 1 PID: 25928 Comm: syz-executor.3 Not tainted 6.2.0-rc8-next-20230216 #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 a2 fb 33 02 e8 f9 e7 35 ff be 70 01 00 00 48 c7 c7 e0 d4 9e 84 e8 d8 e0 59 ff e9 51 fe ff ff e8 de e7 35 ff <0f> 0b 45 31 f6 eb 87 e8 d2 e7 35 ff 31 ff 89 ee e8 39 e3 35 ff 40 RSP: 0018:ffff88803f75f608 EFLAGS: 00010216 RAX: 0000000000000e23 RBX: 0000000000000000 RCX: ffffc90005616000 RDX: 0000000000040000 RSI: ffffffff82159442 RDI: 0000000000000001 RBP: 0000000000000390 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffff88803f75f838 R14: 0000000000000390 R15: ffff88803f75f838 FS: 00007f8fdb1d2700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f958b06ee50 CR3: 000000002ef64000 CR4: 0000000000350ee0 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: 0033:0x7f8fddc5cb19 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:00007f8fdb1d2188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f8fddd6ff60 RCX: 00007f8fddc5cb19 RDX: 000000000000002b RSI: 0000000020000380 RDI: 0000000000000007 RBP: 00007f8fddcb6f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe6f774fef R14: 00007f8fdb1d2300 R15: 0000000000022000 irq event stamp: 5553 hardirqs last enabled at (5583): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (5628): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (4322): [] __irq_exit_rcu+0xcc/0x110 softirqs last disabled at (4049): [] __irq_exit_rcu+0xcc/0x110 ---[ end trace 0000000000000000 ]--- No source specified sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in; program syz-executor.3 not setting count and/or reply_len properly No source specified EXT4-fs: Ignoring removed nomblk_io_submit option No source specified sr 1:0:0:0: [sr0] CDROM not ready. Make sure there is a disc in the drive. No source specified sr 1:0:0:0: [sr0] CDROM not ready. Make sure there is a disc in the drive. sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in; program syz-executor.3 not setting count and/or reply_len properly sr 1:0:0:0: [sr0] CDROM not ready. Make sure there is a disc in the drive. sr 1:0:0:0: [sr0] CDROM not ready. Make sure there is a disc in the drive. netlink: 'syz-executor.1': attribute type 1 has an invalid length. netlink: 'syz-executor.1': attribute type 1 has an invalid length. syz-executor.1: epoll_ctl support in io_uring is deprecated and will be removed in a future Linux kernel version. IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready device lo left promiscuous mode device lo entered promiscuous mode device lo left promiscuous mode device lo entered promiscuous mode