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
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5096 at lib/iov_iter.c:623 _copy_from_iter+0x2b2/0x1140
Modules linked in:
CPU: 0 PID: 5096 Comm: syz-executor.2 Not tainted 6.3.0-rc1-next-20230308 #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 e2 e0 34 02 e8 89 05 35 ff be 73 02 00 00 48 c7 c7 a0 e1 9e 84 e8 08 03 59 ff e9 51 fe ff ff e8 6e 05 35 ff <0f> 0b 45 31 f6 eb 87 e8 62 05 35 ff 31 ff 89 ee e8 99 00 35 ff 40
RSP: 0018:ffff888046627608 EFLAGS: 00010212
RAX: 000000000000554a RBX: 0000000000000000 RCX: ffffc90006007000
RDX: 0000000000040000 RSI: ffffffff82166742 RDI: 0000000000000001
RBP: 0000000000001000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: ffff888046627838 R14: 0000000000001000 R15: ffff888046627838
FS: 00007f4c301ee700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2c225000 CR3: 0000000044a42000 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: 0033:0x7f4c32c78b19
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:00007f4c301ee188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f4c32d8bf60 RCX: 00007f4c32c78b19
RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000006
RBP: 00007f4c32cd2f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcb8fb04cf R14: 00007f4c301ee300 R15: 0000000000022000
irq event stamp: 4843
hardirqs last enabled at (4877): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (4914): [] sysvec_apic_timer_interrupt+0xf/0x90
softirqs last enabled at (1984): [] __irq_exit_rcu+0xcc/0x110
softirqs last disabled at (1863): [] __irq_exit_rcu+0xcc/0x110
---[ end trace 0000000000000000 ]---
audit: type=1400 audit(1678716190.960:21): avc: denied { create } for pid=5104 comm="syz-executor.7" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=dccp_socket permissive=1
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=5096 comm=syz-executor.2
9pnet_fd: Insufficient options for proto=fd
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=5096 comm=syz-executor.2
tmpfs: Unknown parameter '¦OúSúøMôï'
loop4: detected capacity change from 0 to 264192
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=5153 comm=syz-executor.2
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=5160 comm=syz-executor.6