sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.7 not setting count and/or reply_len properly ------------[ cut here ]------------ WARNING: CPU: 1 PID: 21719 at lib/iov_iter.c:364 _copy_from_iter+0x2b2/0x1140 Modules linked in: CPU: 1 PID: 21719 Comm: syz-executor.7 Not tainted 6.2.0-rc7-next-20230213 #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 22 70 33 02 e8 09 04 36 ff be 70 01 00 00 48 c7 c7 60 d1 9e 84 e8 28 dc 59 ff e9 51 fe ff ff e8 ee 03 36 ff <0f> 0b 45 31 f6 eb 87 e8 e2 03 36 ff 31 ff 89 ee e8 49 ff 35 ff 40 RSP: 0018:ffff888048f57608 EFLAGS: 00010216 RAX: 00000000000060a6 RBX: 0000000000000000 RCX: ffffc90007807000 RDX: 0000000000040000 RSI: ffffffff82156c82 RDI: 0000000000000001 RBP: 0000000000001000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffff888048f57838 R14: 0000000000001000 R15: ffff888048f57838 FS: 00007f2ea85af700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2be24000 CR3: 0000000048d82000 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 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=21721 comm=syz-executor.7 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: 0033:0x7f2eab039b19 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:00007f2ea85af188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f2eab14cf60 RCX: 00007f2eab039b19 RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000005 RBP: 00007f2eab093f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe76a835ef R14: 00007f2ea85af300 R15: 0000000000022000 irq event stamp: 5067 hardirqs last enabled at (5131): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (5200): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (914): [] __irq_exit_rcu+0xcc/0x110 softirqs last disabled at (833): [] __irq_exit_rcu+0xcc/0x110 ---[ end trace 0000000000000000 ]--- sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.5 not setting count and/or reply_len properly sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.7 not setting count and/or reply_len properly SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=21730 comm=syz-executor.6 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=21731 comm=syz-executor.5 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=21735 comm=syz-executor.4 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=21734 comm=syz-executor.7 sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.5 not setting count and/or reply_len properly sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.7 not setting count and/or reply_len properly SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=21743 comm=syz-executor.6 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=21752 comm=syz-executor.4 sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.5 not setting count and/or reply_len properly loop0: detected capacity change from 0 to 40 syz-executor.0: attempt to access beyond end of device loop0: rw=2049, sector=44, nr_sectors = 12 limit=40 syz-executor.0: attempt to access beyond end of device loop0: rw=2049, sector=60, nr_sectors = 12 limit=40 loop0: detected capacity change from 0 to 40 syz-executor.0: attempt to access beyond end of device loop0: rw=2049, sector=44, nr_sectors = 12 limit=40 loop0: detected capacity change from 0 to 40 syz-executor.0: attempt to access beyond end of device loop0: rw=2049, sector=44, nr_sectors = 12 limit=40 loop0: detected capacity change from 0 to 40 syz-executor.0: attempt to access beyond end of device loop0: rw=2049, sector=44, nr_sectors = 12 limit=40 Bluetooth: hci0: unexpected event 0x04 length: 11 > 10 Bluetooth: unknown link type 255 Bluetooth: hci0: unexpected event 0x04 length: 11 > 10 Bluetooth: unknown link type 255 Bluetooth: hci0: unexpected event 0x04 length: 11 > 10 Bluetooth: unknown link type 255 Bluetooth: hci0: unexpected event 0x04 length: 11 > 10 Bluetooth: unknown link type 255 Bluetooth: hci0: unexpected event 0x04 length: 11 > 10 Bluetooth: unknown link type 255 Bluetooth: hci0: command 0x0409 tx timeout