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===================================================== BUG: KMSAN: uninit-value in vring_map_one_sg drivers/virtio/virtio_ring.c:362 [inline] BUG: KMSAN: uninit-value in virtqueue_add_split drivers/virtio/virtio_ring.c:585 [inline] BUG: KMSAN: uninit-value in virtqueue_add+0x1d96/0x6270 drivers/virtio/virtio_ring.c:2096 vring_map_one_sg drivers/virtio/virtio_ring.c:362 [inline] virtqueue_add_split drivers/virtio/virtio_ring.c:585 [inline] virtqueue_add+0x1d96/0x6270 drivers/virtio/virtio_ring.c:2096 virtqueue_add_sgs+0x182/0x1a0 drivers/virtio/virtio_ring.c:2130 __virtscsi_add_cmd drivers/scsi/virtio_scsi.c:459 [inline] virtscsi_add_cmd+0x861/0xb00 drivers/scsi/virtio_scsi.c:493 virtscsi_queuecommand+0x900/0xb00 drivers/scsi/virtio_scsi.c:590 scsi_dispatch_cmd+0x54e/0xbf0 drivers/scsi/scsi_lib.c:1524 scsi_queue_rq+0x4088/0x4720 drivers/scsi/scsi_lib.c:1760 blk_mq_dispatch_rq_list+0x1495/0x41e0 block/blk-mq.c:1991 __blk_mq_do_dispatch_sched block/blk-mq-sched.c:173 [inline] blk_mq_do_dispatch_sched+0xdd1/0x16d0 block/blk-mq-sched.c:187 __blk_mq_sched_dispatch_requests+0x442/0x630 blk_mq_sched_dispatch_requests+0x159/0x2c0 block/blk-mq-sched.c:339 __blk_mq_run_hw_queue+0xee/0x260 block/blk-mq.c:2109 __blk_mq_delay_run_hw_queue+0x149/0x6d0 block/blk-mq.c:2185 blk_mq_run_hw_queue+0x4d7/0x7d0 block/blk-mq.c:2233 blk_mq_sched_insert_requests+0x4e5/0x760 block/blk-mq-sched.c:493 blk_mq_dispatch_plug_list+0x66b/0x880 block/blk-mq.c:2693 blk_mq_flush_plug_list+0x759/0x8e0 block/blk-mq.c:2735 __blk_flush_plug+0x5f6/0x680 block/blk-core.c:1138 blk_finish_plug+0x71/0x90 block/blk-core.c:1162 wb_writeback+0xdc3/0xe30 fs/fs-writeback.c:2078 wb_do_writeback+0x25a/0x11c0 fs/fs-writeback.c:2187 wb_workfn+0x194/0x600 fs/fs-writeback.c:2227 process_one_work+0xb27/0x13e0 kernel/workqueue.c:2289 worker_thread+0x1076/0x1d60 kernel/workqueue.c:2436 kthread+0x31b/0x430 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 Uninit was created at: __alloc_pages+0x9f1/0xe80 mm/page_alloc.c:5578 alloc_pages+0xaae/0xd80 mm/mempolicy.c:2285 folio_alloc+0x3e/0x120 mm/mempolicy.c:2295 filemap_alloc_folio mm/filemap.c:971 [inline] __filemap_get_folio+0xe59/0x1b00 mm/filemap.c:1965 pagecache_get_page+0x4a/0x2f0 mm/folio-compat.c:110 grab_cache_page_write_begin+0x51/0x70 mm/folio-compat.c:122 ext4_write_begin+0x3a4/0x3190 fs/ext4/inode.c:1188 ext4_da_write_begin+0x609/0x1190 fs/ext4/inode.c:2979 generic_perform_write+0x3f1/0xbf0 mm/filemap.c:3753 ext4_buffered_write_iter+0x5ec/0xbe0 fs/ext4/file.c:285 ext4_file_write_iter+0x1d3f/0x3430 call_write_iter include/linux/fs.h:2191 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x830/0x1570 fs/read_write.c:584 ksys_write+0x21b/0x4e0 fs/read_write.c:637 __do_sys_write fs/read_write.c:649 [inline] __se_sys_write fs/read_write.c:646 [inline] __ia32_sys_write+0x8d/0xd0 fs/read_write.c:646 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203 do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:246 entry_SYSENTER_compat_after_hwframe+0x70/0x82 Bytes 8-4095 of 4096 are uninitialized Memory access of size 4096 starts at ffff8880474ee000 CPU: 0 PID: 3635 Comm: kworker/u4:8 Not tainted 6.1.0-rc3-syzkaller-62446-ge5527cb41a93 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 Workqueue: writeback wb_workfn (flush-8:0) =====================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2022/11/04 00:26 | https://github.com/google/kmsan.git master | e5527cb41a93 | 6d752409 | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in virtqueue_add | |||
2022/11/01 17:33 | https://github.com/google/kmsan.git master | be8b0d020631 | edac4fd1 | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in virtqueue_add | |||
2022/09/21 00:06 | https://github.com/google/kmsan.git master | 523d2ce66d07 | c4b8ccfd | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in virtqueue_add | |||
2022/08/08 22:43 | https://github.com/google/kmsan.git master | 1b070a5d1a2c | 88e3a122 | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in virtqueue_add | |||
2022/08/02 19:26 | https://github.com/google/kmsan.git master | f469ea3cc7c5 | 1c9013ac | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in virtqueue_add | |||
2022/07/26 02:40 | https://github.com/google/kmsan.git master | 97117d69c353 | 34795c51 | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in virtqueue_add | |||
2022/07/20 20:44 | https://github.com/google/kmsan.git master | 97117d69c353 | 88cb1383 | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in virtqueue_add | |||
2022/07/18 12:54 | https://github.com/google/kmsan.git master | 97117d69c353 | ff988920 | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in virtqueue_add | |||
2022/06/18 08:53 | https://github.com/google/kmsan.git master | 365ac3bfacfb | 8f633d84 | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in virtqueue_add | |||
2022/04/01 14:03 | https://github.com/google/kmsan.git master | 1978a14f70af | 20955a24 | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in virtqueue_add | |||
2022/01/18 15:49 | https://github.com/google/kmsan.git master | fa3879a274df | 731a2d23 | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in virtqueue_add | |||
2022/01/16 10:46 | https://github.com/google/kmsan.git master | fa3879a274df | 723cfaf0 | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in virtqueue_add | |||
2022/01/15 15:02 | https://github.com/google/kmsan.git master | fa3879a274df | 723cfaf0 | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in virtqueue_add |