------------[ cut here ]------------
WARNING: CPU: 0 PID: 9983 at lib/iov_iter.c:623 _copy_from_iter+0x2b2/0x1140
Modules linked in:
CPU: 0 PID: 9983 Comm: syz-executor.7 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:ffff888016d87608 EFLAGS: 00010212
RAX: 000000000000593f RBX: 0000000000000000 RCX: ffffc90007003000
RDX: 0000000000040000 RSI: ffffffff82166742 RDI: 0000000000000001
RBP: 0000000000001000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: ffff888016d87838 R14: 0000000000001000 R15: ffff888016d87838
FS: 00007f6a423f4700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f32b7867000 CR3: 000000003e696000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
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: 0033:0x7f6a44e7eb19
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:00007f6a423f4188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f6a44f91f60 RCX: 00007f6a44e7eb19
RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000005
RBP: 00007f6a44ed8f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffde8b5742f R14: 00007f6a423f4300 R15: 0000000000022000
irq event stamp: 6819
hardirqs last enabled at (6881): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20
hardirqs last disabled at (6960): [] sysvec_apic_timer_interrupt+0xf/0x90
softirqs last enabled at (6490): [] __irq_exit_rcu+0xcc/0x110
softirqs last disabled at (6443): [] __irq_exit_rcu+0xcc/0x110
---[ end trace 0000000000000000 ]---
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 9990 Comm: syz-executor.0 Tainted: G W 6.3.0-rc1-next-20230308 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Call Trace:
dump_stack_lvl+0xc1/0xf0
should_fail_ex+0x4b4/0x5b0
_copy_to_user+0x2e/0x150
simple_read_from_buffer+0xd0/0x170
proc_fail_nth_read+0x19c/0x230
vfs_read+0x257/0x940
ksys_read+0x12b/0x260
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7f32b770a69c
Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 fc ff ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 2f fd ff ff 48
RSP: 002b:00007f32b4ccd170 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f32b770a69c
RDX: 000000000000000f RSI: 00007f32b4ccd1e0 RDI: 0000000000000007
RBP: 00007f32b4ccd1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffda542c7bf R14: 00007f32b4ccd300 R15: 0000000000022000
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 10013 Comm: syz-executor.5 Tainted: G W 6.3.0-rc1-next-20230308 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Call Trace:
dump_stack_lvl+0xc1/0xf0
should_fail_ex+0x4b4/0x5b0
_copy_from_user+0x2e/0x180
do_ipv6_setsockopt+0x1727/0x4610
ipv6_setsockopt+0xe3/0x1a0
tcp_setsockopt+0xa9/0x110
__sys_setsockopt+0x184/0x320
__x64_sys_setsockopt+0xbe/0x160
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7f1ad60ddb19
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:00007f1ad3653188 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f1ad61f0f60 RCX: 00007f1ad60ddb19
RDX: 000000000000001b RSI: 0000000000000029 RDI: 0000000000000003
RBP: 00007f1ad36531d0 R08: 0000000000000014 R09: 0000000000000000
R10: 0000000020000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffd4e43b42f R14: 00007f1ad3653300 R15: 0000000000022000
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