general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 PID: 10293 Comm: syz-executor.1 Tainted: G    B             5.17.0-rc5-next-20220225 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:mas_descend_adopt+0x589/0x1720
Code: 8b 44 24 08 48 c1 e2 03 48 8d 1c 10 48 89 d8 48 c1 e8 03 42 80 3c 38 00 0f 85 07 0e 00 00 48 8b 03 30 c0 48 89 c1 48 c1 e9 03 <42> 80 3c 39 00 0f 85 16 0e 00 00 48 8b 00 41 8d 5d 01 30 c0 48 39
RSP: 0018:ffff8880455c6d68 EFLAGS: 00010256
RAX: 0000000000000000 RBX: ffff888009471e58 RCX: 0000000000000000
RDX: 0000000000000008 RSI: ffffffff820f479a RDI: 0000000000000003
RBP: 0000000000000001 R08: 0000000000000000 R09: 00000000ffffff01
R10: ffffffff820f478d R11: 0000000000000000 R12: ffffed1001f170e9
R13: 0000000000000001 R14: ffff88800f8b8700 R15: dffffc0000000000
FS:  00007ff1639b1700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff16654b000 CR3: 00000000442ae000 CR4: 0000000000350ee0
Call Trace:
 <TASK>
 mas_spanning_rebalance.isra.0+0x5159/0x8b40
 mas_wr_spanning_store.isra.0+0x559/0x1170
 mas_wr_store_entry.isra.0+0xcb7/0x10e0
 mas_store_gfp+0xca/0x1f0
 do_mas_align_munmap.constprop.0+0x5b5/0xc00
 do_mas_munmap+0x1ed/0x2c0
 do_munmap+0xc3/0x100
 __do_sys_mremap+0x1196/0x14f0
loop5: detected capacity change from 0 to 260
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7ff16643bb19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff1639b1188 EFLAGS: 00000246 ORIG_RAX: 0000000000000019
RAX: ffffffffffffffda RBX: 00007ff16654ef60 RCX: 00007ff16643bb19
RDX: 00007fffdf003000 RSI: 0000000000002000 RDI: 0000000020ffa000
RBP: 00007ff166495f6d R08: 0000000020ffc000 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffc2898d3f R14: 00007ff1639b1300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:mas_descend_adopt+0x589/0x1720
Code: 8b 44 24 08 48 c1 e2 03 48 8d 1c 10 48 89 d8 48 c1 e8 03 42 80 3c 38 00 0f 85 07 0e 00 00 48 8b 03 30 c0 48 89 c1 48 c1 e9 03 <42> 80 3c 39 00 0f 85 16 0e 00 00 48 8b 00 41 8d 5d 01 30 c0 48 39
RSP: 0018:ffff8880455c6d68 EFLAGS: 00010256
RAX: 0000000000000000 RBX: ffff888009471e58 RCX: 0000000000000000
RDX: 0000000000000008 RSI: ffffffff820f479a RDI: 0000000000000003
RBP: 0000000000000001 R08: 0000000000000000 R09: 00000000ffffff01
R10: ffffffff820f478d R11: 0000000000000000 R12: ffffed1001f170e9
R13: 0000000000000001 R14: ffff88800f8b8700 R15: dffffc0000000000
FS:  00007ff1639b1700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff16654b000 CR3: 00000000442ae000 CR4: 0000000000350ee0
FAT-fs (loop5): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#2] PREEMPT SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 PID: 10302 Comm: syz-executor.4 Tainted: G    B D           5.17.0-rc5-next-20220225 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:mas_descend_adopt+0x589/0x1720
Code: 8b 44 24 08 48 c1 e2 03 48 8d 1c 10 48 89 d8 48 c1 e8 03 42 80 3c 38 00 0f 85 07 0e 00 00 48 8b 03 30 c0 48 89 c1 48 c1 e9 03 <42> 80 3c 39 00 0f 85 16 0e 00 00 48 8b 00 41 8d 5d 01 30 c0 48 39
RSP: 0018:ffff888042146d68 EFLAGS: 00010256
RAX: 0000000000000000 RBX: ffff88800dd8f258 RCX: 0000000000000000
RDX: 0000000000000008 RSI: ffffffff820f479a RDI: 0000000000000003
RBP: 0000000000000001 R08: 0000000000000000 R09: 00000000ffffff01
R10: ffffffff820f478d R11: 0000000000000000 R12: ffffed1008303549
R13: 0000000000000001 R14: ffff88804181aa00 R15: dffffc0000000000
FS:  00007fe3cb2e5700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe3cde7f000 CR3: 00000000467b2000 CR4: 0000000000350ef0
DR0: 0000000000000101 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 mas_spanning_rebalance.isra.0+0x5159/0x8b40
 mas_wr_spanning_store.isra.0+0x559/0x1170
 mas_wr_store_entry.isra.0+0xcb7/0x10e0
 mas_store_gfp+0xca/0x1f0
 do_mas_align_munmap.constprop.0+0x5b5/0xc00
 do_mas_munmap+0x1ed/0x2c0
 do_munmap+0xc3/0x100
 __do_sys_mremap+0x1196/0x14f0
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fe3cdd6fb19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe3cb2e5188 EFLAGS: 00000246 ORIG_RAX: 0000000000000019
RAX: ffffffffffffffda RBX: 00007fe3cde82f60 RCX: 00007fe3cdd6fb19
RDX: 00007fffdf003000 RSI: 0000000000002000 RDI: 0000000020ffa000
RBP: 00007fe3cddc9f6d R08: 0000000020ffc000 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffdf0ea1bf R14: 00007fe3cb2e5300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:mas_descend_adopt+0x589/0x1720
Code: 8b 44 24 08 48 c1 e2 03 48 8d 1c 10 48 89 d8 48 c1 e8 03 42 80 3c 38 00 0f 85 07 0e 00 00 48 8b 03 30 c0 48 89 c1 48 c1 e9 03 <42> 80 3c 39 00 0f 85 16 0e 00 00 48 8b 00 41 8d 5d 01 30 c0 48 39
RSP: 0018:ffff8880455c6d68 EFLAGS: 00010256
RAX: 0000000000000000 RBX: ffff888009471e58 RCX: 0000000000000000
RDX: 0000000000000008 RSI: ffffffff820f479a RDI: 0000000000000003
RBP: 0000000000000001 R08: 0000000000000000 R09: 00000000ffffff01
R10: ffffffff820f478d R11: 0000000000000000 R12: ffffed1001f170e9
R13: 0000000000000001 R14: ffff88800f8b8700 R15: dffffc0000000000
FS:  00007fe3cb2e5700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe3cde7f000 CR3: 00000000467b2000 CR4: 0000000000350ef0
DR0: 0000000000000101 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
----------------
Code disassembly (best guess):
   0:	8b 44 24 08          	mov    0x8(%rsp),%eax
   4:	48 c1 e2 03          	shl    $0x3,%rdx
   8:	48 8d 1c 10          	lea    (%rax,%rdx,1),%rbx
   c:	48 89 d8             	mov    %rbx,%rax
   f:	48 c1 e8 03          	shr    $0x3,%rax
  13:	42 80 3c 38 00       	cmpb   $0x0,(%rax,%r15,1)
  18:	0f 85 07 0e 00 00    	jne    0xe25
  1e:	48 8b 03             	mov    (%rbx),%rax
  21:	30 c0                	xor    %al,%al
  23:	48 89 c1             	mov    %rax,%rcx
  26:	48 c1 e9 03          	shr    $0x3,%rcx
* 2a:	42 80 3c 39 00       	cmpb   $0x0,(%rcx,%r15,1) <-- trapping instruction
  2f:	0f 85 16 0e 00 00    	jne    0xe4b
  35:	48 8b 00             	mov    (%rax),%rax
  38:	41 8d 5d 01          	lea    0x1(%r13),%ebx
  3c:	30 c0                	xor    %al,%al
  3e:	48                   	rex.W
  3f:	39                   	.byte 0x39