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 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 8244 at lib/iov_iter.c:629 _copy_from_iter+0x2f1/0x1130 Modules linked in: CPU: 1 PID: 8244 Comm: syz-executor.5 Not tainted 6.1.0-rc7-next-20221205 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:_copy_from_iter+0x2f1/0x1130 Code: 37 ff 44 89 f3 e9 2f ff ff ff e8 ba 07 37 ff be 79 02 00 00 48 c7 c7 40 c0 9e 84 e8 89 87 5a ff e9 13 fe ff ff e8 9f 07 37 ff <0f> 0b 45 31 f6 e9 77 ff ff ff e8 90 07 37 ff 31 ff 89 ee e8 57 03 RSP: 0018:ffff88803d42f5e8 EFLAGS: 00010216 RAX: 000000000000975b RBX: 0000000000000000 RCX: ffffc90006907000 RDX: 0000000000040000 RSI: ffffffff82120c81 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000001000 R13: ffffea0000631000 R14: 0000000000001000 R15: ffff88803d42f818 FS: 00007fe1fa450700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc7b790e718 CR3: 000000003b6de000 CR4: 0000000000350ee0 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+0x706/0xb20 sg_write+0x88/0xe0 vfs_write+0x358/0xe40 ksys_write+0x12b/0x260 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fe1fcedab19 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:00007fe1fa450188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fe1fcfedf60 RCX: 00007fe1fcedab19 RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000005 RBP: 00007fe1fcf34f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffeea75c40f R14: 00007fe1fa450300 R15: 0000000000022000 irq event stamp: 12031 hardirqs last enabled at (12173): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (12304): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (6578): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (6393): [] __irq_exit_rcu+0x11b/0x180 ---[ end trace 0000000000000000 ]--- SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=8254 comm=syz-executor.5 audit: type=1400 audit(1670237515.811:33): avc: denied { read } for pid=8243 comm="syz-executor.5" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 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.3 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.5 not setting count and/or reply_len properly Bluetooth: hci0: command 0x041c tx timeout SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=8289 comm=syz-executor.4 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=8290 comm=syz-executor.5 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=8291 comm=syz-executor.3 sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.4 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.3 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.5 not setting count and/or reply_len properly SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=8302 comm=syz-executor.4 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=8303 comm=syz-executor.5 sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.3 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.4 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 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=8325 comm=syz-executor.4 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=8326 comm=syz-executor.5 Bluetooth: hci0: command 0x041c tx timeout SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=8331 comm=syz-executor.3 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=8338 comm=syz-executor.4 Bluetooth: hci0: command 0x041c tx timeout sg_write: 3 callbacks suppressed 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.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.4 not setting count and/or reply_len properly selinux_netlink_send: 2 callbacks suppressed SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=8370 comm=syz-executor.4 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=8368 comm=syz-executor.0 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 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=8421 comm=syz-executor.0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=8422 comm=syz-executor.5