Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fa4126fbc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fa4126fc6d4 RCX: 000000000045c6c9 RDX: 0000000020000000 RSI: 00000000c0184900 RDI: 0000000000000006 RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000007 R13: 0000000000000360 R14: 00000000004c5b9c R15: 0000000000000004 ------------[ cut here ]------------ kernel BUG at mm/kmsan/kmsan_shadow.c:439! invalid opcode: 0000 [#1] SMP CPU: 1 PID: 13729 Comm: syz-executor.2 Not tainted 5.5.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kmsan_vmap_page_range_noflush+0x2d0/0x2e0 mm/kmsan/kmsan_shadow.c:103 Code: e8 d5 42 45 ff 4c 89 e7 e8 9d 50 fd ff 4c 89 ef e8 95 50 fd ff 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 0b 0f 0b 0f 0b <0f> 0b 0f 0b 66 90 66 2e 0f 1f 84 00 00 00 00 00 48 89 f8 b9 08 00 RSP: 0018:ffff99174131b638 EFLAGS: 00010286 RAX: 00000000fffffff4 RBX: ffffa1175ca20000 RCX: ffff991741a33000 RDX: 0000000000040000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffff99174131b688 R08: ffffe9b68000000f R09: ffff8ace6fffb000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8acea8a8b300 R13: ffff8acea8a8b900 R14: ffffa9175ca00000 R15: ffffa1175ca00000 FS: 00007fa4126fc700(0000) GS:ffff8ace6fd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5d80e85000 CR3: 00000001616bc000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: vmap_page_range_noflush mm/vmalloc.c:257 [inline] vmap_page_range mm/vmalloc.c:266 [inline] vm_map_ram+0x1210/0x4630 mm/vmalloc.c:1857 ion_heap_clear_pages drivers/staging/android/ion/ion_heap.c:102 [inline] ion_heap_sglist_zero+0x26d/0x550 drivers/staging/android/ion/ion_heap.c:123 ion_heap_buffer_zero+0x19e/0x1d0 drivers/staging/android/ion/ion_heap.c:145 ion_system_heap_free+0xe6/0x4d0 drivers/staging/android/ion/ion_system_heap.c:163 ion_buffer_destroy+0x186/0x4d0 drivers/staging/android/ion/ion.c:93 _ion_heap_freelist_drain+0x4d2/0x800 drivers/staging/android/ion/ion_heap.c:201 ion_heap_freelist_drain+0x6e/0x80 drivers/staging/android/ion/ion_heap.c:211 ion_buffer_create drivers/staging/android/ion/ion.c:56 [inline] ion_alloc drivers/staging/android/ion/ion.c:383 [inline] ion_ioctl+0x878/0x1fc0 drivers/staging/android/ion/ion.c:509 do_vfs_ioctl+0xd88/0x3060 fs/ioctl.c:47 ksys_ioctl fs/ioctl.c:749 [inline] __do_sys_ioctl fs/ioctl.c:756 [inline] __se_sys_ioctl+0x1da/0x270 fs/ioctl.c:754 __x64_sys_ioctl+0x4a/0x70 fs/ioctl.c:754 do_syscall_64+0xb8/0x160 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45c6c9 Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fa4126fbc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fa4126fc6d4 RCX: 000000000045c6c9 RDX: 0000000020000000 RSI: 00000000c0184900 RDI: 0000000000000006 RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000007 R13: 0000000000000360 R14: 00000000004c5b9c R15: 0000000000000004 Modules linked in: ---[ end trace 0b72f02415cdb425 ]--- RIP: 0010:kmsan_vmap_page_range_noflush+0x2d0/0x2e0 mm/kmsan/kmsan_shadow.c:103 Code: e8 d5 42 45 ff 4c 89 e7 e8 9d 50 fd ff 4c 89 ef e8 95 50 fd ff 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 0b 0f 0b 0f 0b <0f> 0b 0f 0b 66 90 66 2e 0f 1f 84 00 00 00 00 00 48 89 f8 b9 08 00 RSP: 0018:ffff99174131b638 EFLAGS: 00010286 RAX: 00000000fffffff4 RBX: ffffa1175ca20000 RCX: ffff991741a33000 RDX: 0000000000040000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffff99174131b688 R08: ffffe9b68000000f R09: ffff8ace6fffb000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8acea8a8b300 R13: ffff8acea8a8b900 R14: ffffa9175ca00000 R15: ffffa1175ca00000 FS: 00007fa4126fc700(0000) GS:ffff8ace6fd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5d80e85000 CR3: 00000001616bc000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400