systemd[1]: Stopped Journal Service. systemd[1]: Starting Journal Service... kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access systemd[1]: rsyslog.service: Service hold-off time over, scheduling restart. general protection fault: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 1 PID: 25006 Comm: syz-executor.1 Not tainted 4.14.215-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff88808d9c0300 task.stack: ffff888099898000 RIP: 0010:vb2_vmalloc_put_userptr+0x6a/0x210 drivers/media/v4l2-core/videobuf2-vmalloc.c:136 RSP: 0000:ffff88809989f8b8 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffffffff103f2d8 RDX: 0000000000000001 RSI: 0000000000000004 RDI: 0000000000000009 RBP: ffff888098deee00 R08: 0000000000000000 R09: 0000000000040552 R10: ffff88808d9c0bb0 R11: ffff88808d9c0300 R12: 0000000000000000 R13: ffff888098deee08 R14: ffffc900156a9000 R15: ffff888098deee00 FS: 00007fda8a92b700(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fda8a92b9e0 CR3: 0000000008e6a000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __vb2_buf_userptr_put drivers/media/v4l2-core/videobuf2-core.c:256 [inline] __vb2_free_mem drivers/media/v4l2-core/videobuf2-core.c:413 [inline] __vb2_queue_free+0x394/0x7a0 drivers/media/v4l2-core/videobuf2-core.c:454 vb2_core_queue_release+0x5b/0x70 drivers/media/v4l2-core/videobuf2-core.c:2043 vb2_queue_release drivers/media/v4l2-core/videobuf2-v4l2.c:669 [inline] _vb2_fop_release+0x1c1/0x280 drivers/media/v4l2-core/videobuf2-v4l2.c:840 vivid_fop_release+0x17d/0x6b6 drivers/media/platform/vivid/vivid-core.c:486 v4l2_release+0xf4/0x190 drivers/media/v4l2-core/v4l2-dev.c:446 __fput+0x25f/0x7a0 fs/file_table.c:210 task_work_run+0x11f/0x190 kernel/task_work.c:113 exit_task_work include/linux/task_work.h:22 [inline] do_exit+0xa44/0x2850 kernel/exit.c:868 systemd-journald[25041]: File /run/log/journal/64dd78f1a75445a997c532444ad0f085/system.journal corrupted or uncleanly shut down, renaming and replacing. do_group_exit+0x100/0x2e0 kernel/exit.c:965 get_signal+0x38d/0x1ca0 kernel/signal.c:2423 do_signal+0x7c/0x1550 arch/x86/kernel/signal.c:814 exit_to_usermode_loop+0x160/0x200 arch/x86/entry/common.c:160 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline] syscall_return_slowpath arch/x86/entry/common.c:270 [inline] do_syscall_64+0x4a3/0x640 arch/x86/entry/common.c:297 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x45e219 RSP: 002b:00007fda8a92ac68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: fffffffffffffff2 RBX: 0000000000000003 RCX: 000000000045e219 RDX: 0000000020000200 RSI: 00000000c100565c RDI: 0000000000000004 RBP: 000000000119bfc0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119bf8c R13: 00007fffb0da22ef R14: 00007fda8a92b9c0 R15: 000000000119bf8c Code: 4c 89 ea 48 c1 ea 03 80 3c 02 00 0f 85 91 01 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 65 08 49 8d 7c 24 09 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 40 01 00 RIP: vb2_vmalloc_put_userptr+0x6a/0x210 drivers/media/v4l2-core/videobuf2-vmalloc.c:136 RSP: ffff88809989f8b8 ---[ end trace fe148912e8df92b5 ]---