EXT4-fs error (device loop1): ext4_lookup:1855: inode #15: comm syz-executor: iget: bad extra_isize 65531 (inode size 512)
EXT4-fs error (device loop1): ext4_lookup:1855: inode #15: comm syz-executor: iget: bad extra_isize 65531 (inode size 512)
general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 PID: 8513 Comm: syz-executor Tainted: G        W         5.15.161-syzkaller-00425-gb92c0d35d015 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:____rb_erase_color lib/rbtree.c:354 [inline]
RIP: 0010:__rb_erase_color+0x20b/0xa60 lib/rbtree.c:413
Code: 49 89 de 49 c1 ee 03 43 80 3c 26 00 74 08 48 89 df e8 99 fe 2a ff 4c 8b 3b 4d 89 fc 49 c1 ec 03 48 b8 00 00 00 00 00 fc ff df <41> 80 3c 04 00 74 08 4c 89 ff e8 76 fe 2a ff 41 f6 07 01 48 89 5d
RSP: 0018:ffffc90000b179e0 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff88811a8b1e48 RCX: ffff88810a78cf00
RDX: ffffffff81a56820 RSI: ffff88810df87250 RDI: ffff88811a8b1e38
RBP: ffffc90000b17a40 R08: ffffffff81a548e0 R09: ffffed1021bf0e4e
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff88811a8b1e38 R14: 1ffff110235163c9 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f25244f3710 CR3: 000000010a1a0000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 rb_erase_augmented include/linux/rbtree_augmented.h:305 [inline]
 rb_erase_augmented_cached include/linux/rbtree_augmented.h:314 [inline]
 vma_interval_tree_remove+0xb82/0xba0 mm/interval_tree.c:23
 __remove_shared_vm_struct mm/mmap.c:159 [inline]
 unlink_file_vma+0xd9/0xf0 mm/mmap.c:174
 free_pgtables+0x13f/0x280 mm/memory.c:487
 exit_mmap+0x405/0x940 mm/mmap.c:3217
 __mmput+0x95/0x310 kernel/fork.c:1179
 mmput+0x5b/0x170 kernel/fork.c:1202
 exit_mm kernel/exit.c:552 [inline]
 do_exit+0xb9c/0x2ca0 kernel/exit.c:865
 do_group_exit+0x141/0x310 kernel/exit.c:1000
 __do_sys_exit_group kernel/exit.c:1011 [inline]
 __se_sys_exit_group kernel/exit.c:1009 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1009
 x64_sys_call+0x610/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f2523808ef9
Code: Unable to access opcode bytes at RIP 0x7f2523808ecf.
RSP: 002b:00007ffe30cb3b28 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f252387ba39 RCX: 00007f2523808ef9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000075 R08: 00007ffe30cb18c5 R09: 00007ffe30cb4de0
R10: 000000000000000b R11: 0000000000000246 R12: 00007ffe30cb4de0
R13: 00007f252387ba14 R14: 000000000007d4d7 R15: 00007ffe30cb5ea0
 </TASK>
Modules linked in:
---[ end trace 4bb7641c12fb1808 ]---
RIP: 0010:____rb_erase_color lib/rbtree.c:354 [inline]
RIP: 0010:__rb_erase_color+0x20b/0xa60 lib/rbtree.c:413
Code: 49 89 de 49 c1 ee 03 43 80 3c 26 00 74 08 48 89 df e8 99 fe 2a ff 4c 8b 3b 4d 89 fc 49 c1 ec 03 48 b8 00 00 00 00 00 fc ff df <41> 80 3c 04 00 74 08 4c 89 ff e8 76 fe 2a ff 41 f6 07 01 48 89 5d
RSP: 0018:ffffc90000b179e0 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff88811a8b1e48 RCX: ffff88810a78cf00
RDX: ffffffff81a56820 RSI: ffff88810df87250 RDI: ffff88811a8b1e38
RBP: ffffc90000b17a40 R08: ffffffff81a548e0 R09: ffffed1021bf0e4e
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff88811a8b1e38 R14: 1ffff110235163c9 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000011d653000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	49 89 de             	mov    %rbx,%r14
   3:	49 c1 ee 03          	shr    $0x3,%r14
   7:	43 80 3c 26 00       	cmpb   $0x0,(%r14,%r12,1)
   c:	74 08                	je     0x16
   e:	48 89 df             	mov    %rbx,%rdi
  11:	e8 99 fe 2a ff       	call   0xff2afeaf
  16:	4c 8b 3b             	mov    (%rbx),%r15
  19:	4d 89 fc             	mov    %r15,%r12
  1c:	49 c1 ec 03          	shr    $0x3,%r12
  20:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  27:	fc ff df
* 2a:	41 80 3c 04 00       	cmpb   $0x0,(%r12,%rax,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	4c 89 ff             	mov    %r15,%rdi
  34:	e8 76 fe 2a ff       	call   0xff2afeaf
  39:	41 f6 07 01          	testb  $0x1,(%r15)
  3d:	48                   	rex.W
  3e:	89                   	.byte 0x89
  3f:	5d                   	pop    %rbp