Warning: Permanently added '10.128.0.85' (ED25519) to the list of known hosts. executing program executing program executing program [ 149.288682][ T5014] syz-executor297[5014]: segfault at 0 ip 0000000000000000 sp 0000000020000108 error 14 likely on CPU 0 (core 0, socket 0) [ 149.302138][ T5014] Code: Unable to access opcode bytes at 0xffffffffffffffd6. [ 149.313557][ T5016] syz-executor297[5016]: segfault at 0 ip 0000000000000000 sp 0000000020000108 error 14 likely on CPU 0 (core 0, socket 0) [ 149.327055][ T5016] Code: Unable to access opcode bytes at 0xffffffffffffffd6. executing program [ 149.347133][ T5018] syz-executor297[5018]: segfault at 0 ip 0000000000000000 sp 0000000020000108 error 14 likely on CPU 1 (core 0, socket 0) [ 149.360896][ T5018] Code: Unable to access opcode bytes at 0xffffffffffffffd6. executing program [ 149.397546][ T5020] syz-executor297[5020]: segfault at 0 ip 0000000000000000 sp 0000000020000108 error 14 likely on CPU 1 (core 0, socket 0) [ 149.411692][ T5020] Code: Unable to access opcode bytes at 0xffffffffffffffd6. executing program [ 149.469255][ T5022] syz-executor297[5022]: segfault at 0 ip 0000000000000000 sp 0000000020000108 error 14 likely on CPU 1 (core 0, socket 0) [ 149.482771][ T5022] Code: Unable to access opcode bytes at 0xffffffffffffffd6. executing program [ 149.529248][ T5024] syz-executor297[5024]: segfault at 0 ip 0000000000000000 sp 0000000020000108 error 14 likely on CPU 1 (core 0, socket 0) [ 149.542839][ T5024] Code: Unable to access opcode bytes at 0xffffffffffffffd6. [ 149.609177][ T5026] syz-executor297[5026]: segfault at 0 ip 0000000000000000 sp 0000000020000108 error 14 likely on CPU 1 (core 0, socket 0) [ 149.622853][ T5026] Code: Unable to access opcode bytes at 0xffffffffffffffd6. [ 149.680658][ T8] ===================================================== [ 149.688117][ T8] BUG: KMSAN: uninit-value in virtqueue_add+0x1e86/0x65c0 [ 149.695511][ T8] virtqueue_add+0x1e86/0x65c0 [ 149.700449][ T8] virtqueue_add_sgs+0x186/0x1b0 [ 149.705575][ T8] virtscsi_add_cmd+0x838/0xad0 [ 149.710607][ T8] virtscsi_queuecommand+0x898/0xa60 [ 149.716077][ T8] scsi_queue_rq+0x4cd0/0x5a80 [ 149.721350][ T8] blk_mq_dispatch_rq_list+0x148e/0x3ae0 [ 149.727416][ T8] __blk_mq_sched_dispatch_requests+0x11b7/0x26e0 [ 149.734069][ T8] blk_mq_sched_dispatch_requests+0x12f/0x270 [ 149.740472][ T8] blk_mq_run_work_fn+0xd0/0x280 [ 149.745604][ T8] process_scheduled_works+0xa81/0x1bd0 [ 149.751361][ T8] worker_thread+0xea5/0x1560 [ 149.756245][ T8] kthread+0x3e2/0x540 [ 149.760509][ T8] ret_from_fork+0x6d/0x90 [ 149.765107][ T8] ret_from_fork_asm+0x1a/0x30 [ 149.770144][ T8] [ 149.772544][ T8] Uninit was stored to memory at: [ 149.777881][ T8] copy_page_from_iter_atomic+0x12b7/0x2b60 [ 149.783987][ T8] generic_perform_write+0x4c1/0xc60 [ 149.789495][ T8] ext4_buffered_write_iter+0x564/0xaa0 [ 149.795233][ T8] ext4_file_write_iter+0x208/0x3450 [ 149.800704][ T8] __kernel_write_iter+0x68b/0xc40 [ 149.806171][ T8] dump_user_range+0x8dc/0xee0 [ 149.811103][ T8] elf_core_dump+0x520f/0x59c0 [ 149.816065][ T8] do_coredump+0x32d5/0x4920 [ 149.820808][ T8] get_signal+0x267e/0x2d00 [ 149.825815][ T8] arch_do_signal_or_restart+0x53/0xcb0 [ 149.831569][ T8] irqentry_exit_to_user_mode+0xa6/0x160 [ 149.837410][ T8] irqentry_exit+0x16/0x60 [ 149.841983][ T8] exc_page_fault+0x523/0x730 [ 149.846817][ T8] asm_exc_page_fault+0x2b/0x30 [ 149.851940][ T8] [ 149.854338][ T8] Uninit was created at: [ 149.858819][ T8] __alloc_pages+0x9d6/0xe70 [ 149.863624][ T8] alloc_pages_mpol+0x299/0x990 [ 149.868644][ T8] alloc_pages+0x1bf/0x1e0 [ 149.873209][ T8] dump_user_range+0x4a/0xee0 [ 149.878058][ T8] elf_core_dump+0x520f/0x59c0 [ 149.883005][ T8] do_coredump+0x32d5/0x4920 [ 149.887835][ T8] get_signal+0x267e/0x2d00 [ 149.892492][ T8] arch_do_signal_or_restart+0x53/0xcb0 [ 149.898247][ T8] irqentry_exit_to_user_mode+0xa6/0x160 [ 149.904081][ T8] irqentry_exit+0x16/0x60 [ 149.908650][ T8] exc_page_fault+0x523/0x730 [ 149.913486][ T8] asm_exc_page_fault+0x2b/0x30 [ 149.918588][ T8] [ 149.921070][ T8] Bytes 0-4095 of 4096 are uninitialized [ 149.926986][ T8] Memory access of size 4096 starts at ffff88812df17000 [ 149.934032][ T8] [ 149.936440][ T8] CPU: 0 PID: 8 Comm: kworker/0:0H Not tainted 6.9.0-rc1-syzkaller-00355-g712e14250dd2 #0 [ 149.946495][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 149.956681][ T8] Workqueue: kblockd blk_mq_run_work_fn [ 149.962585][ T8] ===================================================== [ 149.969606][ T8] Disabling lock debugging due to kernel taint [ 149.975973][ T8] Kernel panic - not syncing: kmsan.panic set ... [ 149.982747][ T8] CPU: 0 PID: 8 Comm: kworker/0:0H Tainted: G B 6.9.0-rc1-syzkaller-00355-g712e14250dd2 #0 [ 149.994333][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 150.004616][ T8] Workqueue: kblockd blk_mq_run_work_fn [ 150.010354][ T8] Call Trace: [ 150.013784][ T8] [ 150.017514][ T8] dump_stack_lvl+0x216/0x2d0 [ 150.022489][ T8] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 150.028556][ T8] dump_stack+0x1e/0x30 [ 150.032971][ T8] panic+0x4e2/0xcd0 [ 150.037042][ T8] ? kmsan_get_metadata+0x91/0x1d0 [ 150.042343][ T8] kmsan_report+0x2d5/0x2e0 [ 150.047061][ T8] ? kmsan_get_metadata+0x146/0x1d0 [ 150.052502][ T8] ? kmsan_internal_set_shadow_origin+0x66/0xe0 [ 150.058951][ T8] ? kmsan_internal_check_memory+0x48c/0x560 [ 150.065262][ T8] ? kmsan_handle_dma+0xac/0xc0 [ 150.070360][ T8] ? virtqueue_add+0x1e86/0x65c0 [ 150.075486][ T8] ? virtqueue_add_sgs+0x186/0x1b0 [ 150.081309][ T8] ? virtscsi_add_cmd+0x838/0xad0 [ 150.086606][ T8] ? virtscsi_queuecommand+0x898/0xa60 [ 150.092463][ T8] ? scsi_queue_rq+0x4cd0/0x5a80 [ 150.097583][ T8] ? blk_mq_dispatch_rq_list+0x148e/0x3ae0 [ 150.103707][ T8] ? __blk_mq_sched_dispatch_requests+0x11b7/0x26e0 [ 150.110603][ T8] ? blk_mq_sched_dispatch_requests+0x12f/0x270 [ 150.117157][ T8] ? blk_mq_run_work_fn+0xd0/0x280 [ 150.123071][ T8] ? process_scheduled_works+0xa81/0x1bd0 [ 150.129193][ T8] ? worker_thread+0xea5/0x1560 [ 150.134297][ T8] ? kthread+0x3e2/0x540 [ 150.138730][ T8] ? ret_from_fork+0x6d/0x90 [ 150.143753][ T8] ? ret_from_fork_asm+0x1a/0x30 [ 150.148890][ T8] ? scsi_queue_rq+0x4342/0x5a80 [ 150.154275][ T8] ? blk_mq_dispatch_rq_list+0x148e/0x3ae0 [ 150.160398][ T8] ? __blk_mq_sched_dispatch_requests+0x11b7/0x26e0 [ 150.167526][ T8] ? blk_mq_sched_dispatch_requests+0x12f/0x270 [ 150.174353][ T8] ? blk_mq_run_work_fn+0xd0/0x280 [ 150.179638][ T8] ? process_scheduled_works+0xa81/0x1bd0 [ 150.185642][ T8] ? worker_thread+0xea5/0x1560 [ 150.191279][ T8] ? kthread+0x3e2/0x540 [ 150.195702][ T8] ? ret_from_fork+0x6d/0x90 [ 150.200450][ T8] ? ret_from_fork_asm+0x1a/0x30 [ 150.205581][ T8] ? kmsan_get_metadata+0x146/0x1d0 [ 150.210957][ T8] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 150.216923][ T8] ? kmsan_get_metadata+0x146/0x1d0 [ 150.222537][ T8] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 150.228531][ T8] ? should_fail_ex+0x4a/0x800 [ 150.233537][ T8] ? kmsan_get_metadata+0x146/0x1d0 [ 150.238893][ T8] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 150.244954][ T8] ? kmsan_get_metadata+0x146/0x1d0 [ 150.250330][ T8] kmsan_internal_check_memory+0x48c/0x560 [ 150.256448][ T8] kmsan_handle_dma+0xac/0xc0 [ 150.261514][ T8] virtqueue_add+0x1e86/0x65c0 [ 150.266476][ T8] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 150.272481][ T8] ? kmsan_get_metadata+0x146/0x1d0 [ 150.277963][ T8] ? kmsan_get_metadata+0x146/0x1d0 [ 150.283448][ T8] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 150.289758][ T8] virtqueue_add_sgs+0x186/0x1b0 [ 150.295113][ T8] virtscsi_add_cmd+0x838/0xad0 [ 150.301253][ T8] virtscsi_queuecommand+0x898/0xa60 [ 150.306858][ T8] ? __pfx_virtscsi_queuecommand+0x10/0x10 [ 150.312995][ T8] scsi_queue_rq+0x4cd0/0x5a80 [ 150.318096][ T8] ? __pfx_scsi_queue_rq+0x10/0x10 [ 150.323476][ T8] blk_mq_dispatch_rq_list+0x148e/0x3ae0 [ 150.329342][ T8] ? sbitmap_get+0x4d5/0x670 [ 150.334835][ T8] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 150.341080][ T8] ? kmsan_get_metadata+0x146/0x1d0 [ 150.346466][ T8] ? dd_dispatch_request+0x991/0xa20 [ 150.352027][ T8] __blk_mq_sched_dispatch_requests+0x11b7/0x26e0 [ 150.359126][ T8] ? finish_task_switch+0x1c8/0x8f0 [ 150.364613][ T8] ? __blk_mq_sched_dispatch_requests+0x1011/0x26e0 [ 150.371531][ T8] blk_mq_sched_dispatch_requests+0x12f/0x270 [ 150.378115][ T8] blk_mq_run_work_fn+0xd0/0x280 [ 150.383355][ T8] ? __pfx_blk_mq_run_work_fn+0x10/0x10 [ 150.389137][ T8] process_scheduled_works+0xa81/0x1bd0 [ 150.394928][ T8] worker_thread+0xea5/0x1560 [ 150.399839][ T8] kthread+0x3e2/0x540 [ 150.404304][ T8] ? __pfx_worker_thread+0x10/0x10 [ 150.409612][ T8] ? __pfx_kthread+0x10/0x10 [ 150.414393][ T8] ret_from_fork+0x6d/0x90 [ 150.419071][ T8] ? __pfx_kthread+0x10/0x10 [ 150.423932][ T8] ret_from_fork_asm+0x1a/0x30 [ 150.428906][ T8] [ 151.858694][ T8] Shutting down cpus with NMI [ 151.864060][ T8] Kernel Offset: disabled [ 151.868493][ T8] Rebooting in 86400 seconds..