------------[ cut here ]------------ WARNING: CPU: 0 PID: 13516 at lib/iov_iter.c:629 _copy_from_iter+0x2bf/0x1150 Modules linked in: CPU: 0 PID: 13516 Comm: syz-executor.7 Not tainted 6.2.0-rc1-next-20221226 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:_copy_from_iter+0x2bf/0x1150 Code: 5d 41 5e 41 5f e9 a5 9f 2f 02 e8 9c a3 37 ff be 79 02 00 00 48 c7 c7 80 cb 9e 84 e8 6b 18 5b ff e9 48 fe ff ff e8 81 a3 37 ff <0f> 0b 45 31 f6 eb 87 e8 75 a3 37 ff 31 ff 89 ee e8 3c 9f 37 ff 40 RSP: 0018:ffff888033ccf5e8 EFLAGS: 00010212 RAX: 00000000000054a8 RBX: 0000000000000000 RCX: ffffc9000618c000 RDX: 0000000000040000 RSI: ffffffff821139ff RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff888033ccf818 R13: ffffea00011e6400 R14: 0000000000001000 R15: ffff888033ccf818 FS: 00007f5b20a82700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200005c0 CR3: 000000004494c000 CR4: 0000000000350ef0 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+0x698/0xa90 sg_write+0x88/0xe0 vfs_write+0x2cf/0xd90 ksys_write+0x12b/0x260 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f5b2350cb19 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:00007f5b20a82188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f5b2361ff60 RCX: 00007f5b2350cb19 RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000005 RBP: 00007f5b23566f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe6055843f R14: 00007f5b20a82300 R15: 0000000000022000 irq event stamp: 2881 hardirqs last enabled at (2901): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (2946): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (728): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (591): [] __irq_exit_rcu+0x11b/0x180 ---[ end trace 0000000000000000 ]--- device lo left promiscuous mode device lo entered promiscuous mode device lo entered promiscuous mode 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.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 device lo left promiscuous mode 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 device lo entered promiscuous mode device lo left promiscuous mode device lo left promiscuous mode device lo entered promiscuous mode device lo entered promiscuous mode 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.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 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 netlink: 'syz-executor.5': attribute type 49 has an invalid length. 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 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. device sit0 entered promiscuous mode device sit0 left promiscuous mode device sit0 entered promiscuous mode device sit0 left promiscuous mode tmpfs: Bad value for 'nr_inodes' device sit0 entered promiscuous mode device sit0 left promiscuous mode device sit0 entered promiscuous mode device sit0 left promiscuous mode device sit0 entered promiscuous mode device sit0 left promiscuous mode device sit0 entered promiscuous mode device sit0 left promiscuous mode device sit0 entered promiscuous mode device sit0 left promiscuous mode device sit0 entered promiscuous mode device sit0 left promiscuous mode Process accounting resumed Process accounting resumed cgroup: fork rejected by pids controller in /syz3 Bluetooth: Wrong link type (-71) netlink: 420 bytes leftover after parsing attributes in process `syz-executor.7'. No source specified No source specified Bluetooth: Wrong link type (-71) Bluetooth: Wrong link type (-71) Bluetooth: Wrong link type (-71) Bluetooth: Wrong link type (-71) Bluetooth: hci6: link tx timeout Bluetooth: hci6: killing stalled connection 10:aa:aa:aa:aa:aa netlink: 'syz-executor.0': attribute type 1 has an invalid length. netlink: 'syz-executor.0': attribute type 1 has an invalid length. Bluetooth: Wrong link type (-71) Bluetooth: hci6: link tx timeout Bluetooth: hci6: killing stalled connection 10:aa:aa:aa:aa:aa device lo entered promiscuous mode Bluetooth: Wrong link type (-71) Bluetooth: hci0: link tx timeout Bluetooth: hci0: killing stalled connection 10:aa:aa:aa:aa:aa