Not allocated shadow for addr ffff88012ceae700 (page ffffea00070d8140) Attempted to access 8 bytes ------------[ cut here ]------------ kernel BUG at mm/kmsan/kmsan.c:1075! invalid opcode: 0000 [#1] SMP CPU: 0 PID: 7926 Comm: syz-executor5 Not tainted 4.19.0-rc4+ #63 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kmsan_get_shadow_address+0x2d6/0x3d0 mm/kmsan/kmsan.c:1073 Code: e9 89 00 00 00 c7 04 25 20 73 28 8c 01 00 00 00 65 48 8b 04 25 00 fd 02 00 c6 80 7b 09 00 00 01 80 3c 25 38 73 28 8c 00 74 0c <0f> 0b 0f 1f 84 00 00 00 00 00 eb fe 48 c7 c7 11 bc 57 8b 31 c0 4c RSP: 0018:ffff8801393ff510 EFLAGS: 00010046 RAX: 000000000000001b RBX: 0000000000000000 RCX: e4f06f353a311900 RDX: 0000000000000000 RSI: 0000000000037426 RDI: 0000000000037427 RBP: ffff8801393ff540 R08: 0000000000000000 R09: ffff88021fc38f50 R10: 0000000000000000 R11: ffffffff86258280 R12: 0000000000000001 R13: ffff88012ceae700 R14: 0000000000000001 R15: 0000000000000008 FS: 00007fc20b626700(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f659c4dc000 CR3: 000000013b444000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kmsan_internal_memset_shadow mm/kmsan/kmsan.c:163 [inline] kmsan_internal_unpoison_shadow+0x5c/0xe0 mm/kmsan/kmsan.c:200 kmsan_unpoison_shadow+0x72/0xd0 mm/kmsan/kmsan.c:214 native_ptep_get_and_clear arch/x86/include/asm/pgtable_64.h:87 [inline] ptep_get_and_clear arch/x86/include/asm/pgtable.h:1104 [inline] vunmap_pte_range mm/vmalloc.c:67 [inline] vunmap_pmd_range mm/vmalloc.c:84 [inline] vunmap_pud_range mm/vmalloc.c:100 [inline] vunmap_p4d_range mm/vmalloc.c:116 [inline] vunmap_page_range+0x828/0xc20 mm/vmalloc.c:131 unmap_vmap_area mm/vmalloc.c:604 [inline] free_unmap_vmap_area mm/vmalloc.c:739 [inline] remove_vm_area+0x39b/0x450 mm/vmalloc.c:1491 __vunmap+0x34c/0x5d0 mm/vmalloc.c:1519 vunmap+0x69/0xb0 mm/vmalloc.c:1612 relay_destroy_buf+0xac/0x430 kernel/relay.c:213 relay_remove_buf kernel/relay.c:235 [inline] kref_put include/linux/kref.h:70 [inline] relay_close_buf kernel/relay.c:496 [inline] relay_close+0x470/0xa20 kernel/relay.c:846 blk_trace_free kernel/trace/blktrace.c:314 [inline] blk_trace_cleanup kernel/trace/blktrace.c:339 [inline] __blk_trace_remove+0x256/0x320 kernel/trace/blktrace.c:352 blk_trace_ioctl+0x2e5/0x970 kernel/trace/blktrace.c:730 blkdev_ioctl+0x1aaa/0x55e0 block/ioctl.c:587 block_ioctl+0x16f/0x1d0 fs/block_dev.c:1883 vfs_ioctl fs/ioctl.c:46 [inline] do_vfs_ioctl+0xcf3/0x2810 fs/ioctl.c:687 ksys_ioctl fs/ioctl.c:702 [inline] __do_sys_ioctl fs/ioctl.c:709 [inline] __se_sys_ioctl+0x1da/0x270 fs/ioctl.c:707 __x64_sys_ioctl+0x4a/0x70 fs/ioctl.c:707 do_syscall_64+0xbe/0x100 arch/x86/entry/common.c:291 entry_SYSCALL_64_after_hwframe+0x63/0xe7 RIP: 0033:0x457579 Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fc20b625c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457579 RDX: 0000000000000000 RSI: 0000000000001276 RDI: 0000000000000003 RBP: 000000000072bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc20b6266d4 R13: 00000000004bea1e R14: 00000000004ce728 R15: 00000000ffffffff Modules linked in: ---[ end trace 40b73812d39e70a4 ]--- RIP: 0010:kmsan_get_shadow_address+0x2d6/0x3d0 mm/kmsan/kmsan.c:1073 Code: e9 89 00 00 00 c7 04 25 20 73 28 8c 01 00 00 00 65 48 8b 04 25 00 fd 02 00 c6 80 7b 09 00 00 01 80 3c 25 38 73 28 8c 00 74 0c <0f> 0b 0f 1f 84 00 00 00 00 00 eb fe 48 c7 c7 11 bc 57 8b 31 c0 4c RSP: 0018:ffff8801393ff510 EFLAGS: 00010046 RAX: 000000000000001b RBX: 0000000000000000 RCX: e4f06f353a311900 RDX: 0000000000000000 RSI: 0000000000037426 RDI: 0000000000037427 RBP: ffff8801393ff540 R08: 0000000000000000 R09: ffff88021fc38f50 R10: 0000000000000000 R11: ffffffff86258280 R12: 0000000000000001 R13: ffff88012ceae700 R14: 0000000000000001 R15: 0000000000000008 FS: 00007fc20b626700(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f659c4dc000 CR3: 000000013b444000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400