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 loop1: detected capacity change from 0 to 9 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4119 at lib/iov_iter.c:629 _copy_from_iter+0x2f1/0x1130 Modules linked in: CPU: 1 PID: 4119 Comm: syz-executor.2 Not tainted 6.1.0-next-20221219 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:_copy_from_iter+0x2f1/0x1130 Code: 37 ff 44 89 f3 e9 2f ff ff ff e8 7a 13 37 ff be 79 02 00 00 48 c7 c7 80 c8 9e 84 e8 99 91 5a ff e9 13 fe ff ff e8 5f 13 37 ff <0f> 0b 45 31 f6 e9 77 ff ff ff e8 50 13 37 ff 31 ff 89 ee e8 17 0f RSP: 0018:ffff888045fc75e8 EFLAGS: 00010212 FAT-fs (loop1): Unrecognized mount option "zon'@óTq " or missing value RAX: 00000000000081e7 RBX: 0000000000000000 RCX: ffffc900029f8000 RDX: 0000000000040000 RSI: ffffffff82121a51 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000001000 R13: ffffea000065fe00 R14: 0000000000001000 R15: ffff888045fc7818 FS: 00007fa9973ea700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2bf22000 CR3: 000000001f202000 CR4: 0000000000350ee0 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+0x706/0xb20 sg_write+0x88/0xe0 vfs_write+0x358/0xe40 ksys_write+0x12b/0x260 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fa999e74b19 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:00007fa9973ea188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fa999f87f60 RCX: 00007fa999e74b19 RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000005 RBP: 00007fa999ecef6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffda4685aff R14: 00007fa9973ea300 R15: 0000000000022000 irq event stamp: 9885 hardirqs last enabled at (9931): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (9996): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (4462): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (3771): [] __irq_exit_rcu+0x11b/0x180 ---[ end trace 0000000000000000 ]--- tmpfs: Unknown parameter '' tmpfs: Unknown parameter '' audit: type=1400 audit(1671833804.553:10): avc: denied { read } for pid=4116 comm="syz-executor.2" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 loop1: detected capacity change from 0 to 11 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 Bluetooth: hci4: unexpected event 0x31 length: 7 > 6 loop1: detected capacity change from 0 to 11