loop4: detected capacity change from 0 to 40
sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in;
program syz-executor.1 not setting count and/or reply_len properly
------------[ cut here ]------------
WARNING: CPU: 1 PID: 3974 at lib/iov_iter.c:364 _copy_from_iter+0x2b2/0x1140
Modules linked in:
CPU: 1 PID: 3974 Comm: syz-executor.1 Not tainted 6.2.0-rc8-next-20230215 #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 42 ce 33 02 e8 e9 d9 35 ff be 70 01 00 00 48 c7 c7 a0 d3 9e 84 e8 e8 d2 59 ff e9 51 fe ff ff e8 ce d9 35 ff <0f> 0b 45 31 f6 eb 87 e8 c2 d9 35 ff 31 ff 89 ee e8 29 d5 35 ff 40
RSP: 0018:ffff888042c77608 EFLAGS: 00010216
RAX: 0000000000004164 RBX: 0000000000000000 RCX: ffffc90000dd6000
RDX: 0000000000040000 RSI: ffffffff8215a1a2 RDI: 0000000000000001
RBP: 0000000000001000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: ffff888042c77838 R14: 0000000000001000 R15: ffff888042c77838
FS: 00007fd3184a4700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2c128000 CR3: 000000003371c000 CR4: 0000000000350ee0
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: 0033:0x7fd31af2eb19
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:00007fd3184a4188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fd31b041f60 RCX: 00007fd31af2eb19
RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000004
RBP: 00007fd31af88f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff7d62bd7f R14: 00007fd3184a4300 R15: 0000000000022000
irq event stamp: 1845
hardirqs last enabled at (1855): [] vprintk_emit+0x504/0x560
hardirqs last disabled at (1864): [] vprintk_emit+0x49b/0x560
softirqs last enabled at (818): [] __irq_exit_rcu+0xcc/0x110
softirqs last disabled at (723): [] __irq_exit_rcu+0xcc/0x110
---[ end trace 0000000000000000 ]---
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=3974 comm=syz-executor.1
audit: type=1400 audit(1676516493.863:9): avc: denied { read } for pid=3973 comm="syz-executor.1" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1
=======================================================
WARNING: The mand mount option has been deprecated and
and is ignored by this kernel. Remove the mand
option from the mount to silence this warning.
=======================================================
loop3: detected capacity change from 0 to 592
loop4: detected capacity change from 0 to 40
Bluetooth: hci0: Opcode 0x c03 failed: -4
loop4: detected capacity change from 0 to 40
Bluetooth: hci0: Opcode 0x c03 failed: -4
device syz_tun entered promiscuous mode
device syz_tun left promiscuous mode
audit: type=1400 audit(1676516494.779:10): avc: denied { write } for pid=3996 comm="syz-executor.7" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1
device syz_tun entered promiscuous mode
device syz_tun left promiscuous mode