sg_write: data in/out 569/821 bytes for SCSI command 0x18-- guessing data in; program syz-executor.7 not setting count and/or reply_len properly ------------[ cut here ]------------ WARNING: CPU: 0 PID: 13926 at lib/iov_iter.c:364 _copy_from_iter+0x2b2/0x1140 Modules linked in: CPU: 0 PID: 13926 Comm: syz-executor.7 Not tainted 6.2.0-rc8-next-20230220 #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 92 fe 33 02 e8 99 e2 35 ff be 70 01 00 00 48 c7 c7 60 d1 9e 84 e8 28 d7 59 ff e9 51 fe ff ff e8 7e e2 35 ff <0f> 0b 45 31 f6 eb 87 e8 72 e2 35 ff 31 ff 89 ee e8 d9 dd 35 ff 40 RSP: 0018:ffff88803888f608 EFLAGS: 00010212 RAX: 0000000000000e55 RBX: 0000000000000000 RCX: ffffc9000080b000 RDX: 0000000000040000 RSI: ffffffff82159152 RDI: 0000000000000001 RBP: 0000000000000335 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffff88803888f838 R14: 0000000000000335 R15: ffff88803888f838 FS: 00007f7530dba700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3e97d5d4a0 CR3: 000000000e6aa000 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: 0033:0x7f7533844b19 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:00007f7530dba188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f7533957f60 RCX: 00007f7533844b19 RDX: 000000000000035f RSI: 0000000020000140 RDI: 0000000000000003 RBP: 00007f753389ef6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffde467decf R14: 00007f7530dba300 R15: 0000000000022000 irq event stamp: 1329 hardirqs last enabled at (1339): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (1356): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (1352): [] __irq_exit_rcu+0xcc/0x110 softirqs last disabled at (1347): [] __irq_exit_rcu+0xcc/0x110 ---[ end trace 0000000000000000 ]--- loop5: detected capacity change from 0 to 512 EXT4-fs (loop5): ext4_check_descriptors: Block bitmap for group 0 not in group (block 0)! EXT4-fs (loop5): group descriptors corrupted! blktrace: Concurrent blktraces are not allowed on sg0 program syz-executor.7 is using a deprecated SCSI ioctl, please convert it to SG_IO sg_write: data in/out 569/821 bytes for SCSI command 0x18-- guessing data in; program syz-executor.7 not setting count and/or reply_len properly