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: 3999 at lib/iov_iter.c:376 _copy_from_iter+0x2b2/0x1140
Modules linked in:
CPU: 1 PID: 3999 Comm: syz-executor.7 Not tainted 6.3.0-rc3-next-20230324 #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 82 ce 33 02 e8 19 91 36 ff be 7c 01 00 00 48 c7 c7 e0 c4 9e 84 e8 48 86 5a ff e9 51 fe ff ff e8 fe 90 36 ff <0f> 0b 45 31 f6 eb 87 e8 f2 90 36 ff 31 ff 89 ee e8 29 8c 36 ff 40
RSP: 0018:ffff8880430ef608 EFLAGS: 00010216
RAX: 0000000000003fbc RBX: 0000000000000000 RCX: ffffc90011c89000
RDX: 0000000000040000 RSI: ffffffff8214f722 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000001000
R13: ffff8880430ef838 R14: 0000000000001000 R15: ffff8880430ef838
FS: 00007f81e3638700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f19fab38c80 CR3: 00000000169c2000 CR4: 0000000000350ee0
Call Trace:
copy_page_from_iter+0xe3/0x180
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
audit: type=1400 audit(1679795492.492:12): avc: denied { write } for pid=3998 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
loop6: detected capacity change from 0 to 264192
sg_write+0x8d/0xe0
vfs_write+0x2d8/0xdd0
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=4028 comm=syz-executor.7
audit: type=1400 audit(1679795493.501:13): avc: denied { read } for pid=3997 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
ksys_write+0x12b/0x260
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7f81e60c2b19
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:00007f81e3638188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f81e61d5f60 RCX: 00007f81e60c2b19
RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000005
RBP: 00007f81e611cf6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcf591474f R14: 00007f81e3638300 R15: 0000000000022000
irq event stamp: 139421
hardirqs last enabled at (139709): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20
hardirqs last disabled at (139968): [] sysvec_apic_timer_interrupt+0xf/0x90
softirqs last enabled at (130690): [] __irq_exit_rcu+0xcc/0x110
softirqs last disabled at (129637): [] __irq_exit_rcu+0xcc/0x110
---[ end trace 0000000000000000 ]---
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=4031 comm=syz-executor.7
audit: type=1400 audit(1679795494.082:14): avc: denied { block_suspend } for pid=4036 comm="syz-executor.6" capability=36 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1