sg_write: data in/out 3804/46 bytes for SCSI command 0x0-- guessing data in; program syz-executor.0 not setting count and/or reply_len properly ------------[ cut here ]------------ WARNING: CPU: 0 PID: 3338 at lib/iov_iter.c:385 _copy_from_iter+0x2d9/0x1190 Modules linked in: CPU: 0 PID: 3338 Comm: syz-executor.0 Not tainted 6.5.0-rc7-syzkaller-00185-g28f20a19294d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 RIP: 0010:_copy_from_iter+0x2d9/0x1190 lib/iov_iter.c:385 Code: 25 28 00 00 00 48 3b 84 24 00 01 00 00 0f 85 92 0e 00 00 4c 89 f0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 27 e3 56 fd <0f> 0b 45 31 f6 eb a7 e8 1b e3 56 fd 49 89 de e9 52 fe ff ff e8 0e RSP: 0018:ffffc900155c7260 EFLAGS: 00010287 RAX: ffffffff8434d559 RBX: 0000000000000000 RCX: 0000000000040000 RDX: ffffc90005581000 RSI: 0000000000004ed6 RDI: 0000000000004ed7 RBP: ffffc900155c73b8 R08: ffffffff8434d332 R09: 0000000000000200 R10: dffffc0000000000 R11: ffffed1012ac242f R12: 1ffff92002ab8e5c R13: dffffc0000000000 R14: 0000000000000edc R15: ffffc900155c75f0 FS: 00007f45947696c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000600 CR3: 000000002255d000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: copy_page_from_iter+0x7a/0x100 lib/iov_iter.c:542 bio_copy_from_iter block/blk-map.c:56 [inline] bio_copy_user_iov block/blk-map.c:211 [inline] blk_rq_map_user_iov+0x146d/0x2570 block/blk-map.c:662 blk_rq_map_user block/blk-map.c:691 [inline] blk_rq_map_user_io+0x288/0x420 block/blk-map.c:724 sg_start_req drivers/scsi/sg.c:1818 [inline] sg_common_write+0xd7f/0x14d0 drivers/scsi/sg.c:803 sg_write+0xa61/0xf10 drivers/scsi/sg.c:707 vfs_write+0x286/0xaf0 fs/read_write.c:582 ksys_write+0x1a0/0x2c0 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f4593a7cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f45947690c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f4593b9bf80 RCX: 00007f4593a7cae9 RDX: 0000000000000058 RSI: 0000000020000040 RDI: 0000000000000004 RBP: 00007f4593ac847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f4593b9bf80 R15: 00007ffcca3337c8