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: 20579 at lib/iov_iter.c:629 _copy_from_iter+0x2bf/0x1170 Modules linked in: CPU: 1 PID: 20579 Comm: syz-executor.7 Not tainted 6.2.0-rc5-next-20230123 #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 33 02 e8 7c c3 37 ff be 79 02 00 00 48 c7 c7 80 e4 9e 84 e8 5b 5f 5b ff e9 48 fe ff ff e8 61 c3 37 ff <0f> 0b 45 31 f6 eb 87 e8 55 c3 37 ff 31 ff 89 ee e8 1c bf 37 ff 40 RSP: 0018:ffff88804eedf608 EFLAGS: 00010212 RAX: 0000000000006bdb RBX: 0000000000000000 RCX: ffffc90008847000 RDX: 0000000000040000 RSI: ffffffff8211b5af RDI: 0000000000000001 RBP: 0000000000001000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff88804eedf838 R13: ffffea00013fb800 R14: 0000000000001000 R15: ffff88804eedf838 FS: 00007f9957c9f700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d721000 CR3: 000000004d30e000 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+0x698/0xa90 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: 0033:0x7f995a729b19 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:00007f9957c9f188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f995a83cf60 RCX: 00007f995a729b19 RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000005 RBP: 00007f995a783f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff67c6d4af R14: 00007f9957c9f300 R15: 0000000000022000 irq event stamp: 7533 hardirqs last enabled at (7603): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (7694): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (5150): [] irq_exit_rcu+0x11f/0x190 softirqs last disabled at (5035): [] irq_exit_rcu+0x11f/0x190 ---[ end trace 0000000000000000 ]--- SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=20579 comm=syz-executor.7 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=20702 comm=syz-executor.7 sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.6 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.0 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 sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.1 not setting count and/or reply_len properly SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=20813 comm=syz-executor.5 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=20820 comm=syz-executor.1 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=20821 comm=syz-executor.0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=20818 comm=syz-executor.6 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=20822 comm=syz-executor.7 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=20825 comm=syz-executor.3 sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.2 not setting count and/or reply_len properly SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=20906 comm=syz-executor.5 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 sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.0 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.6 not setting count and/or reply_len properly SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=20937 comm=syz-executor.7 EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8. Quota mode: none. EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8. Quota mode: none. EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8. Quota mode: none. EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8. Quota mode: none. EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8. Quota mode: none. EXT4-fs (sda): Can't modify superblock whileperforming online resize EXT4-fs (sda): Can't modify superblock whileperforming online resize