loop0: detected capacity change from 0 to 32768
Unable to handle kernel paging request at virtual address ffff60011a9dc959
KASAN: probably wild-memory-access in range [0xffff0008d4ee4ac8-0xffff0008d4ee4acf]
Mem abort info:
  ESR = 0x0000000096000005
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x05: level 1 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000
  CM = 0, WnR = 0, TnD = 0, TagAccess = 0
  GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000002079fa000
[ffff60011a9dc959] pgd=0000000000000000, p4d=0000000233a00003, pud=0000000000000000
Internal error: Oops: 0000000096000005 [#1]  SMP
Modules linked in:
CPU: 1 UID: 0 PID: 7412 Comm: syz.0.16 Not tainted 6.15.0-rc7-syzkaller-gd7fa1af5b33e #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : bch2_dirent_name_bytes fs/bcachefs/dirent.c:45 [inline]
pc : bch2_dirent_get_name fs/bcachefs/dirent.c:65 [inline]
pc : bch2_dirent_to_text+0x124/0x394 fs/bcachefs/dirent.c:213
lr : bch2_dirent_name_bytes fs/bcachefs/dirent.c:43 [inline]
lr : bch2_dirent_get_name fs/bcachefs/dirent.c:65 [inline]
lr : bch2_dirent_to_text+0x110/0x394 fs/bcachefs/dirent.c:213
sp : ffff8000a3bf6800
x29: ffff8000a3bf6800 x28: ffff0000d4ee4a70 x27: ffff0000d4ee4ad0
x26: ffff8000a3bf712c x25: 00000000ffffffd8 x24: 1fffe0001a9dc960
x23: dfff800000000000 x22: ffff0008d4ee4ac8 x21: ffff0000d4ee4b00
x20: ffff0000d4ee4af8 x19: ffff8000a3bf7120 x18: 1fffe0003386f276
x17: 7972746e655f7465 x16: ffff80008ad27e48 x15: 0000000000000001
x14: 0000000000000001 x13: 0000000000000007 x12: 0000000000000020
x11: dfff800000000000 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : 1fffe0011a9dc959 x7 : ffff8000a3bf6720 x6 : 000000000000003a
x5 : ffff0000dd7b2830 x4 : ffff80008b2fc962 x3 : ffff0000d4ee4af8
x2 : ffff0000d4ee4ad0 x1 : ffffffffffffffd8 x0 : 0000000000000009
Call trace:
 bch2_dirent_name_bytes fs/bcachefs/dirent.c:45 [inline] (P)
 bch2_dirent_get_name fs/bcachefs/dirent.c:65 [inline] (P)
 bch2_dirent_to_text+0x124/0x394 fs/bcachefs/dirent.c:213 (P)
 bch2_val_to_text fs/bcachefs/bkey_methods.c:321 [inline]
 bch2_bkey_val_to_text+0xf0/0x140 fs/bcachefs/bkey_methods.c:331
 journal_entry_btree_keys_to_text+0x430/0x99c fs/bcachefs/journal_io.c:428
 journal_entry_btree_root_to_text+0x34/0x48 fs/bcachefs/journal_io.c:472
 bch2_journal_entry_to_text+0xe8/0x160 fs/bcachefs/journal_io.c:868
 bch2_sb_clean_to_text+0x144/0x228 fs/bcachefs/sb-clean.c:256
 __bch2_sb_field_to_text fs/bcachefs/super-io.c:1362 [inline]
 bch2_sb_field_to_text+0x1a4/0x234 fs/bcachefs/super-io.c:1378
 bch2_sb_field_validate+0x1ac/0x268 fs/bcachefs/super-io.c:1345
 bch2_sb_validate+0xe9c/0x11c0 fs/bcachefs/super-io.c:554
 __bch2_read_super+0x8ac/0xc30 fs/bcachefs/super-io.c:915
 bch2_read_super+0x38/0x4c fs/bcachefs/super-io.c:935
 bch2_fs_open+0x190/0x22e8 fs/bcachefs/super.c:2178
 bch2_fs_get_tree+0x384/0xf30 fs/bcachefs/fs.c:2491
 vfs_get_tree+0x90/0x28c fs/super.c:1759
 do_new_mount+0x228/0x814 fs/namespace.c:3881
 path_mount+0x5b4/0xde0 fs/namespace.c:4208
 do_mount fs/namespace.c:4221 [inline]
 __do_sys_mount fs/namespace.c:4432 [inline]
 __se_sys_mount fs/namespace.c:4409 [inline]
 __arm64_sys_mount+0x3e8/0x468 fs/namespace.c:4409
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x58/0x17c arch/arm64/kernel/entry-common.c:767
 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
Code: 531d7329 8b284e96 5100a139 d343fec8 (38776908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	531d7329 	lsl	w9, w25, #3
   4:	8b284e96 	add	x22, x20, w8, uxtw #3
   8:	5100a139 	sub	w25, w9, #0x28
   c:	d343fec8 	lsr	x8, x22, #3
* 10:	38776908 	ldrb	w8, [x8, x23] <-- trapping instruction