systemd-udevd crashes writing ISO with usb-creator-gtk

[Dario Menin]

At the end of the writing process, systemd-udevd crashes, i see this in dmesg:

[ 1934.273458] INFO: task systemd-udevd:298 blocked for more than 120 seconds.
[ 1934.273462] Tainted: G OE 4.10.0-37-generic #41~16.04.1-Ubuntu
[ 1934.273464] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1934.273466] systemd-udevd D 0 298 1 0x00000004
[ 1934.273468] Call Trace:
[ 1934.273474] __schedule+0x232/0x700
[ 1934.273475] schedule+0x36/0x80
[ 1934.273477] schedule_preempt_disabled+0xe/0x10
[ 1934.273478] __mutex_lock_slowpath+0x193/0x290
[ 1934.273480] mutex_lock+0x2f/0x40
[ 1934.273482] __blkdev_get+0x6f/0x400
[ 1934.273483] blkdev_get+0x129/0x330
[ 1934.273485] blkdev_open+0x82/0xd0
[ 1934.273487] do_dentry_open+0x208/0x310
[ 1934.273488] ? blkdev_get_by_dev+0x50/0x50
[ 1934.273489] vfs_open+0x4c/0x70
[ 1934.273491] ? may_open+0x9b/0x100
[ 1934.273492] path_openat+0x2ac/0x1430
[ 1934.273494] do_filp_open+0x91/0x100
[ 1934.273496] ? __alloc_fd+0x46/0x170
[ 1934.273498] do_sys_open+0x12d/0x280
[ 1934.273500] SyS_open+0x1e/0x20
[ 1934.273502] entry_SYSCALL_64_fastpath+0x1e/0xad
[ 1934.273503] RIP: 0033:0x7f915b83bc60
[ 1934.273504] RSP: 002b:00007ffccbefa178 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
[ 1934.273505] RAX: ffffffffffffffda RBX: 000055baf1f7e760 RCX: 00007f915b83bc60
[ 1934.273506] RDX: 000055baf1422592 RSI: 00000000000a0800 RDI: 000055baf1f6dcc0
[ 1934.273507] RBP: 0000000000000000 R08: 0000000000000073 R09: 0000000000000003
[ 1934.273507] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 1934.273508] R13: 000055baf1f7e760 R14: 00007ffccbefa0f0 R15: 0000000000000000

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: systemd 229-4ubuntu19
ProcVersionSignature: Ubuntu 4.10.0-37.41~16.04.1-generic 4.10.17
Uname: Linux 4.10.0-37-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
CurrentDesktop: Unity
Date: Fri Oct 20 22:46:10 2017
InstallationDate: Installed on 2016-02-21 (606 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
MachineType: System manufacturer System Product Name
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.10.0-37-generic root=UUID=9ada941b-b897-4db2-94f4-db4646410ed0 ro quiet splash vt.handoff=7
SourcePackage: systemd
UpgradeStatus: Upgraded to xenial on 2016-06-28 (479 days ago)
dmi.bios.date: 09/11/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 2105
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: M4A78T-E
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2105:bd09/11/2009:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM4A78T-E:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer