sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in;
program syz-executor.7 not setting count and/or reply_len properly
------------[ cut here ]------------
WARNING: CPU: 1 PID: 4211 at lib/iov_iter.c:385 _copy_from_iter+0x2f1/0x1320
Modules linked in:
CPU: 1 PID: 4211 Comm: syz-executor.7 Not tainted 6.4.0-rc3-next-20230525 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:_copy_from_iter+0x2f1/0x1320
Code: b2 ff ff 89 c3 e9 1f ff ff ff e8 5a e4 35 ff be 85 01 00 00 48 c7 c7 c0 e6 9e 84 e8 b9 36 5a ff e9 13 fe ff ff e8 3f e4 35 ff <0f> 0b 45 31 f6 e9 67 ff ff ff e8 30 e4 35 ff 31 ff 89 ee e8 67 df
RSP: 0018:ffff888046cf7608 EFLAGS: 00010216
RAX: 00000000000036d5 RBX: 0000000000000000 RCX: ffffc90011c65000
RDX: 0000000000040000 RSI: ffffffff821618b1 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8180f6c5 R12: 0000000000001000
R13: ffffea0001147e00 R14: 0000000000001000 R15: ffff888046cf7838
FS: 00007f217df90700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2bd2b000 CR3: 000000001421c000 CR4: 0000000000350ee0
Call Trace:
copy_page_from_iter+0xe3/0x180
blk_rq_map_user_iov+0xb39/0x16c0
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+0x2b8/0xd40
ksys_write+0x12b/0x260
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7f2180a1ab19
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:00007f217df90188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f2180b2df60 RCX: 00007f2180a1ab19
RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000006
RBP: 00007f2180a74f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffde2be9faf R14: 00007f217df90300 R15: 0000000000022000
irq event stamp: 13405
hardirqs last enabled at (13433): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (13460): [] sysvec_apic_timer_interrupt+0xf/0x90
softirqs last enabled at (11104): [] irq_exit_rcu+0x93/0xc0
softirqs last disabled at (11089): [] irq_exit_rcu+0x93/0xc0
---[ end trace 0000000000000000 ]---
audit: type=1400 audit(1685299647.225:12): avc: denied { write } for pid=4228 comm="syz-executor.4" name="task" dev="proc" ino=15009 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=dir permissive=1
audit: type=1400 audit(1685299647.229:13): avc: denied { add_name } for pid=4228 comm="syz-executor.4" name="4229" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=dir permissive=1
audit: type=1400 audit(1685299647.230:14): avc: denied { create } for pid=4228 comm="syz-executor.4" name="4229" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:kernel_t:s0 tclass=file permissive=1
loop4: detected capacity change from 0 to 512
ext4: Unknown parameter 'è'
loop6: detected capacity change from 0 to 512
ext4: Unknown parameter 'n'
loop6: detected capacity change from 0 to 512
ext4: Unknown parameter 'n'
loop4: detected capacity change from 0 to 512
EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
EXT4-fs error (device loop4): ext4_validate_block_bitmap:431: comm syz-executor.4: bg 0: block 2: invalid block bitmap
EXT4-fs (loop4): unmounting filesystem 00000000-0000-0000-0000-000000000000.
Bluetooth: hci0: command 0x0406 tx timeout
Bluetooth: hci7: command 0x0406 tx timeout
Bluetooth: hci2: command 0x0406 tx timeout
Bluetooth: hci1: command 0x0406 tx timeout
Bluetooth: hci3: command 0x0406 tx timeout
Bluetooth: hci5: command 0x0406 tx timeout
Bluetooth: hci6: command 0x0406 tx timeout