------------[ cut here ]------------ WARNING: CPU: 0 PID: 10891 at lib/iov_iter.c:629 _copy_from_iter+0x2b2/0x1140 Modules linked in: CPU: 0 PID: 10891 Comm: syz-executor.2 Not tainted 6.2.0-rc6-next-20230130 #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 62 35 32 02 e8 e9 f4 35 ff be 79 02 00 00 48 c7 c7 80 c6 9e 84 e8 68 ad 59 ff e9 51 fe ff ff e8 ce f4 35 ff <0f> 0b 45 31 f6 eb 87 e8 c2 f4 35 ff 31 ff 89 ee e8 29 f0 35 ff 40 RSP: 0018:ffff8880454f7608 EFLAGS: 00010216 RAX: 000000000000816a RBX: 0000000000000000 RCX: ffffc900019e8000 RDX: 0000000000040000 RSI: ffffffff82156982 RDI: 0000000000000001 RBP: 0000000000001000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffff8880454f7838 R14: 0000000000001000 R15: ffff8880454f7838 FS: 00007fe2299c2700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2c122000 CR3: 00000000411e8000 CR4: 0000000000350ef0 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: 0033:0x7fe22c44cb19 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:00007fe2299c2188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fe22c55ff60 RCX: 00007fe22c44cb19 RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000005 RBP: 00007fe22c4a6f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff50594ecf R14: 00007fe2299c2300 R15: 0000000000022000 irq event stamp: 10107 hardirqs last enabled at (10159): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (10210): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (2944): [] __irq_exit_rcu+0xcc/0x110 softirqs last disabled at (1939): [] __irq_exit_rcu+0xcc/0x110 ---[ end trace 0000000000000000 ]--- SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=10907 comm=syz-executor.2 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=10928 comm=syz-executor.2 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=10927 comm=syz-executor.4 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=10934 comm=syz-executor.2 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=10958 comm=syz-executor.4 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=10961 comm=syz-executor.2 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=10979 comm=syz-executor.4 netlink: 'syz-executor.7': attribute type 1 has an invalid length. netlink: 'syz-executor.7': attribute type 1 has an invalid length. No source specified No source specified netlink: 'syz-executor.7': attribute type 1 has an invalid length. netlink: 'syz-executor.7': attribute type 1 has an invalid length.