------------[ cut here ]------------
WARNING: CPU: 0 PID: 7938 at drivers/scsi/scsi_lib.c:1024 scsi_alloc_sgtables+0x9aa/0xbb0
Modules linked in:
CPU: 0 PID: 7938 Comm: syz-executor.0 Not tainted 5.18.0-rc3-next-20220422 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:scsi_alloc_sgtables+0x9aa/0xbb0
Code: 48 c1 e8 03 80 3c 10 00 0f 85 57 01 00 00 48 c7 c0 00 00 00 80 48 2b 05 14 b0 38 02 48 89 04 24 e9 66 fd ff ff e8 46 14 8b fe <0f> 0b 41 bc 0a 00 00 00 e9 83 fa ff ff 41 bc 09 00 00 00 e9 78 fa
RSP: 0018:ffff88804596f578 EFLAGS: 00010212
RAX: 0000000000000b95 RBX: ffff88800f349108 RCX: ffffc90004fef000
RDX: 0000000000040000 RSI: ffffffff82b90c9a RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000004 R09: 0000000000000000
R10: ffffffff82b90c2d R11: 0000000000000000 R12: ffff88800f34901c
R13: ffff88800c09c000 R14: ffff88800f349000 R15: 0000000000000001
FS:  00007f666f40b700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007faf7a5c3018 CR3: 0000000043074000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 scsi_queue_rq+0x26dc/0x31f0
 blk_mq_dispatch_rq_list+0x6c2/0x21d0
 __blk_mq_sched_dispatch_requests+0x206/0x3e0
 blk_mq_sched_dispatch_requests+0x101/0x180
 __blk_mq_run_hw_queue+0xff/0x350
 __blk_mq_delay_run_hw_queue+0x58a/0x670
 blk_mq_run_hw_queue+0x321/0x4a0
 blk_mq_sched_insert_request+0x2e5/0x3e0
 blk_execute_rq+0xcc/0x340
 sg_io+0x675/0xfe0
 scsi_ioctl+0x52b/0x1540
 sr_block_ioctl+0x1f0/0x240
 blkdev_ioctl+0x356/0x7f0
 __x64_sys_ioctl+0x196/0x210
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f6671e95b19
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:00007f666f40b188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f6671fa8f60 RCX: 00007f6671e95b19
RDX: 0000000020001400 RSI: 0000000000002285 RDI: 0000000000000003
RBP: 00007f6671eeff6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe8e3e31af R14: 00007f666f40b300 R15: 0000000000022000
 </TASK>
irq event stamp: 1193
hardirqs last  enabled at (1199): [<ffffffff812b42e9>] vprintk_emit+0x4f9/0x550
hardirqs last disabled at (1204): [<ffffffff812b4280>] vprintk_emit+0x490/0x550
softirqs last  enabled at (958): [<ffffffff81167ab3>] __irq_exit_rcu+0x113/0x170
softirqs last disabled at (725): [<ffffffff81167ab3>] __irq_exit_rcu+0x113/0x170
---[ end trace 0000000000000000 ]---
9pnet_virtio: no channels available for device syz
9pnet_virtio: no channels available for device syz
: Can't open blockdev
: Can't open blockdev
9pnet_virtio: no channels available for device syz
9pnet_virtio: no channels available for device º
9pnet_virtio: no channels available for device syz
9pnet_virtio: no channels available for device º