program syz-executor.3 is using a deprecated SCSI ioctl, please convert it to SG_IO sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.3 not setting count and/or reply_len properly ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4498 at lib/iov_iter.c:376 _copy_from_iter+0x2bf/0x1200 Modules linked in: CPU: 1 PID: 4498 Comm: syz-executor.3 Not tainted 6.3.0-rc6-next-20230413 #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 94 35 02 e8 dc 87 36 ff be 7c 01 00 00 48 c7 c7 40 cd 9e 84 e8 cb 93 5a ff e9 48 fe ff ff e8 c1 87 36 ff <0f> 0b 45 31 f6 eb 87 e8 b5 87 36 ff 31 ff 89 ee e8 ec 82 36 ff 40 RSP: 0018:ffff888043ed7608 EFLAGS: 00010216 RAX: 0000000000003d56 RBX: 0000000000000000 RCX: ffffc900021f0000 RDX: 0000000000040000 RSI: ffffffff82153edf RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff888043ed7838 R13: ffffea000111e600 R14: 0000000000001000 R15: ffff888043ed7838 FS: 00007f31ba821700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe25013ff8 CR3: 000000000f234000 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: 0033:0x7f31bd2abb19 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:00007f31ba821188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f31bd3bef60 RCX: 00007f31bd2abb19 RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000005 RBP: 00007f31bd305f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc2f3e2def R14: 00007f31ba821300 R15: 0000000000022000 irq event stamp: 1849 hardirqs last enabled at (1857): [] vprintk_emit+0x504/0x560 hardirqs last disabled at (1864): [] vprintk_emit+0x49b/0x560 softirqs last enabled at (1134): [] __irq_exit_rcu+0xcc/0x110 softirqs last disabled at (1059): [] __irq_exit_rcu+0xcc/0x110 ---[ end trace 0000000000000000 ]--- loop2: detected capacity change from 0 to 40 sit0: entered promiscuous mode sit0: left promiscuous mode SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=4498 comm=syz-executor.3 audit: type=1400 audit(1681569769.889:17): avc: denied { read } for pid=4491 comm="syz-executor.3" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 loop2: detected capacity change from 0 to 40 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=4513 comm=syz-executor.3