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: 12483 at lib/iov_iter.c:629 _copy_from_iter+0x2b2/0x1140 Modules linked in: CPU: 1 PID: 12483 Comm: syz-executor.3 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:ffff88804fbdf608 EFLAGS: 00010216 RAX: 0000000000000e07 RBX: 0000000000000000 RCX: ffffc90001ddc000 RDX: 0000000000040000 RSI: ffffffff82156982 RDI: 0000000000000001 RBP: 0000000000000390 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffff88804fbdf838 R14: 0000000000000390 R15: ffff88804fbdf838 FS: 00007fe2637bc700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f96b0217f64 CR3: 000000004bef0000 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: 0033:0x7fe266246b19 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:00007fe2637bc188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fe266359f60 RCX: 00007fe266246b19 RDX: 000000000000002b RSI: 0000000020000380 RDI: 0000000000000007 RBP: 00007fe2662a0f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc6bcbbb4f R14: 00007fe2637bc300 R15: 0000000000022000 irq event stamp: 3901 hardirqs last enabled at (3939): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (3972): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (3934): [] __irq_exit_rcu+0xcc/0x110 softirqs last disabled at (3909): [] __irq_exit_rcu+0xcc/0x110 ---[ end trace 0000000000000000 ]--- 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 sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in; program syz-executor.5 not setting count and/or reply_len properly 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 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 sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in; program syz-executor.5 not setting count and/or reply_len properly 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 sg_write: data in/out 912/1 bytes for SCSI command 0x10-- guessing data in; program syz-executor.5 not setting count and/or reply_len properly tmpfs: Bad value for 'mpol' tmpfs: Bad value for 'mpol' cgroup: No subsys list or none specified random: crng reseeded on system resumption Restarting kernel threads ... done. random: crng reseeded on system resumption Restarting kernel threads ... done. program syz-executor.5 is using a deprecated SCSI ioctl, please convert it to SG_IO netlink: 4 bytes leftover after parsing attributes in process `syz-executor.6'. program syz-executor.5 is using a deprecated SCSI ioctl, please convert it to SG_IO audit: type=1326 audit(1675078209.744:33): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=12840 comm="syz-executor.6" exe="/syz-executor.6" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7ff783347b19 code=0x0 program syz-executor.5 is using a deprecated SCSI ioctl, please convert it to SG_IO audit: type=1326 audit(1675078210.577:34): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=12840 comm="syz-executor.6" exe="/syz-executor.6" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7ff783347b19 code=0x0 program syz-executor.5 is using a deprecated SCSI ioctl, please convert it to SG_IO netlink: 'syz-executor.1': attribute type 1 has an invalid length. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.7'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.7'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.7'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.7'.