Not allocated shadow for addr ffff880136dfb010 (page ffffea0007493e20) Attempted to access 8 bytes ------------[ cut here ]------------ kernel BUG at mm/kmsan/kmsan.c:1091! invalid opcode: 0000 [#1] SMP CPU: 1 PID: 9127 Comm: syz-executor1 Not tainted 4.19.0-rc4+ #65 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:1089 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 1c bc 57 8b 31 c0 4c RSP: 0018:ffff880136d2f948 EFLAGS: 00010046 RAX: 000000000000001b RBX: 0000000000000000 RCX: 115de6292bfa0700 RDX: 0000000000000000 RSI: 0000000000002e71 RDI: 0000000000002e72 RBP: ffff880136d2f978 R08: 0000000000000000 R09: ffff88021fd38f50 R10: 0000000000000000 R11: ffffffff862594e0 R12: 0000000000000001 R13: ffff880136dfb010 R14: 0000000000000001 R15: 0000000000000008 FS: 00007f0e6f7cb700(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2c521000 CR3: 00000001370c5000 CR4: 00000000001406e0 Not allocated shadow for addr ffff880136dfb040 (page ffffea0007493e20) DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 ------------[ cut here ]------------ DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 kernel BUG at mm/kmsan/kmsan.c:1091! 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 big_key_free_buffer security/keys/big_key.c:149 [inline] big_key_read+0x8ae/0xae0 security/keys/big_key.c:405 keyctl_read_key+0x47b/0x500 security/keys/keyctl.c:799 __do_sys_keyctl security/keys/keyctl.c:1679 [inline] __se_sys_keyctl+0xbf4/0x18f0 security/keys/keyctl.c:1637 __x64_sys_keyctl+0x62/0x80 security/keys/keyctl.c:1637 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:00007f0e6f7cac78 EFLAGS: 00000246 ORIG_RAX: 00000000000000fa RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000457579 RDX: 0000000020005340 RSI: 000000002eaf8bcb RDI: 000000000000000b RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000001000 R11: 0000000000000246 R12: 00007f0e6f7cb6d4 R13: 00000000004c2610 R14: 00000000004d36f0 R15: 00000000ffffffff Modules linked in: ---[ end trace 0cd4d032a9febb38 ]--- invalid opcode: 0000 [#2] SMP CPU: 0 PID: 6807 Comm: syz-executor4 Tainted: G D 4.19.0-rc4+ #65 RIP: 0010:kmsan_get_shadow_address+0x2d6/0x3d0 mm/kmsan/kmsan.c:1089 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 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 1c bc 57 8b 31 c0 4c RIP: 0010:kmsan_get_shadow_address+0x2d6/0x3d0 mm/kmsan/kmsan.c:1089 RSP: 0018:ffff880136d2f948 EFLAGS: 00010046 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 1c bc 57 8b 31 c0 4c RSP: 0018:ffff88014ccdf780 EFLAGS: 00010002 RAX: 000000000000001b RBX: 0000000000000000 RCX: 115de6292bfa0700 RDX: 0000000000000000 RSI: 0000000000002e71 RDI: 0000000000002e72 RAX: 0000000000000046 RBX: 0000000000000000 RCX: 250e803c9bd0b600 RBP: ffff880136d2f978 R08: 0000000000000000 R09: ffff88021fd38f50 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88021fc36afc R10: 0000000000000000 R11: ffffffff862594e0 R12: 0000000000000001 RBP: ffff88014ccdf7b0 R08: 0000000000000000 R09: ffff88021fc38f50 R13: ffff880136dfb010 R14: 0000000000000001 R15: 0000000000000008 R10: 0000000000000000 R11: ffffffff862594e0 R12: 0000000000000001 FS: 00007f0e6f7cb700(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000 R13: ffff880136dfb040 R14: 0000000000000001 R15: 0000000000000008 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 FS: 0000000002370940(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000 CR2: 0000001b2c521000 CR3: 00000001370c5000 CR4: 00000000001406e0 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 CR2: 0000000000706158 CR3: 000000014ccb1000 CR4: 00000000001406f0 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000