loop3: detected capacity change from 0 to 63
sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in;
program syz-executor.5 not setting count and/or reply_len properly
------------[ cut here ]------------
WARNING: CPU: 1 PID: 4146 at lib/iov_iter.c:376 _copy_from_iter+0x2bf/0x1200
Modules linked in:
CPU: 1 PID: 4146 Comm: syz-executor.5 Not tainted 6.3.0-rc4-next-20230331 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:_copy_from_iter+0x2bf/0x1200
Code: 5d 41 5e 41 5f e9 c5 ba 34 02 e8 2c 78 36 ff be 7c 01 00 00 48 c7 c7 60 cb 9e 84 e8 5b 72 5a ff e9 48 fe ff ff e8 11 78 36 ff <0f> 0b 45 31 f6 eb 87 e8 05 78 36 ff 31 ff 89 ee e8 3c 73 36 ff 40
RSP: 0018:ffff8880449cf608 EFLAGS: 00010212
RAX: 0000000000003d44 RBX: 0000000000000000 RCX: ffffc90005220000
RDX: 0000000000040000 RSI: ffffffff82153a5f RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880449cf838
R13: ffffea0001116400 R14: 0000000000001000 R15: ffff8880449cf838
FS: 00007f928dd25700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2c722000 CR3: 000000000e978000 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+0x2d8/0xdc0
ksys_write+0x12b/0x260
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7f92907afb19
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:00007f928dd25188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f92908c2f60 RCX: 00007f92907afb19
RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000005
RBP: 00007f9290809f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdbcaa215f R14: 00007f928dd25300 R15: 0000000000022000
irq event stamp: 4475
hardirqs last enabled at (4503): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20
hardirqs last disabled at (4524): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (1488): [] __irq_exit_rcu+0xcc/0x110
softirqs last disabled at (1383): [] __irq_exit_rcu+0xcc/0x110
---[ end trace 0000000000000000 ]---
loop3: detected capacity change from 0 to 63
audit: type=1400 audit(1680486778.609:12): avc: denied { read } for pid=4144 comm="syz-executor.5" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1
sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in;
program syz-executor.5 not setting count and/or reply_len properly