loop0: detected capacity change from 0 to 32768 BUG: unable to handle page fault for address: ffffed1105542159 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 23ffee067 P4D 23ffee067 PUD 0 Oops: Oops: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 6110 Comm: syz.0.15 Not tainted 6.14.0-syzkaller-10514-g7f2ff7b62617 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:bch2_dirent_name_bytes fs/bcachefs/dirent.c:57 [inline] RIP: 0010:bch2_dirent_get_name fs/bcachefs/dirent.c:77 [inline] RIP: 0010:bch2_dirent_to_text+0x133/0x3c0 fs/bcachefs/dirent.c:225 Code: e8 03 42 0f b6 04 28 84 c0 0f 85 7f 02 00 00 41 0f b7 54 24 0b 49 8d 4c 24 0f eb 5a 8d 45 fa 49 8d 1c c4 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 2e 69 c5 fd c1 e5 03 48 8b 1b 31 RSP: 0018:ffffc9000335ea70 EFLAGS: 00010a06 RAX: 1ffff11105542159 RBX: ffff88882aa10ac8 RCX: ffff888026261e00 RDX: ffff888026261e00 RSI: ffffffffffffffd8 RDI: 0000000000000009 RBP: 0000000000000000 R08: ffffffff84639cff R09: 0000000000000020 R10: dffffc0000000000 R11: ffffffff84639c30 R12: ffff88802aa10af8 R13: dffffc0000000000 R14: ffffc9000335f260 R15: 1ffff11005542160 FS: 00007eff000d56c0(0000) GS:ffff8881250ed000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed1105542159 CR3: 00000000129b4000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: journal_entry_btree_keys_to_text+0x364/0x700 fs/bcachefs/journal_io.c:427 bch2_sb_clean_to_text+0x13e/0x260 fs/bcachefs/sb-clean.c:256 bch2_sb_field_validate+0x203/0x2e0 fs/bcachefs/super-io.c:1321 bch2_sb_validate+0x136a/0x1770 fs/bcachefs/super-io.c:538 __bch2_read_super+0xc35/0x13f0 fs/bcachefs/super-io.c:899 bch2_fs_open+0x2c2/0x32a0 fs/bcachefs/super.c:2150 bch2_fs_get_tree+0x77b/0x18d0 fs/bcachefs/fs.c:2172 vfs_get_tree+0x90/0x2b0 fs/super.c:1759 do_new_mount+0x2cf/0xb70 fs/namespace.c:3878 do_mount fs/namespace.c:4218 [inline] __do_sys_mount fs/namespace.c:4429 [inline] __se_sys_mount+0x38c/0x400 fs/namespace.c:4406 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7efeff37711a Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007eff000d4e78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007eff000d4f00 RCX: 00007efeff37711a RDX: 0000000020011a00 RSI: 0000000020000000 RDI: 00007eff000d4ec0 RBP: 0000000020011a00 R08: 00007eff000d4f00 R09: 0000000001200014 R10: 0000000001200014 R11: 0000000000000246 R12: 0000000020000000 R13: 00007eff000d4ec0 R14: 00000000000119fd R15: 0000000020000200 Modules linked in: CR2: ffffed1105542159 ---[ end trace 0000000000000000 ]--- RIP: 0010:bch2_dirent_name_bytes fs/bcachefs/dirent.c:57 [inline] RIP: 0010:bch2_dirent_get_name fs/bcachefs/dirent.c:77 [inline] RIP: 0010:bch2_dirent_to_text+0x133/0x3c0 fs/bcachefs/dirent.c:225 Code: e8 03 42 0f b6 04 28 84 c0 0f 85 7f 02 00 00 41 0f b7 54 24 0b 49 8d 4c 24 0f eb 5a 8d 45 fa 49 8d 1c c4 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 2e 69 c5 fd c1 e5 03 48 8b 1b 31 RSP: 0018:ffffc9000335ea70 EFLAGS: 00010a06 RAX: 1ffff11105542159 RBX: ffff88882aa10ac8 RCX: ffff888026261e00 RDX: ffff888026261e00 RSI: ffffffffffffffd8 RDI: 0000000000000009 RBP: 0000000000000000 R08: ffffffff84639cff R09: 0000000000000020 R10: dffffc0000000000 R11: ffffffff84639c30 R12: ffff88802aa10af8 R13: dffffc0000000000 R14: ffffc9000335f260 R15: 1ffff11005542160 FS: 00007eff000d56c0(0000) GS:ffff8881250ed000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed1105542159 CR3: 00000000129b4000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: e8 03 42 0f b6 call 0xb60f4208 5: 04 28 add $0x28,%al 7: 84 c0 test %al,%al 9: 0f 85 7f 02 00 00 jne 0x28e f: 41 0f b7 54 24 0b movzwl 0xb(%r12),%edx 15: 49 8d 4c 24 0f lea 0xf(%r12),%rcx 1a: eb 5a jmp 0x76 1c: 8d 45 fa lea -0x6(%rbp),%eax 1f: 49 8d 1c c4 lea (%r12,%rax,8),%rbx 23: 48 89 d8 mov %rbx,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 48 89 df mov %rbx,%rdi 34: e8 2e 69 c5 fd call 0xfdc56967 39: c1 e5 03 shl $0x3,%ebp 3c: 48 8b 1b mov (%rbx),%rbx 3f: 31 .byte 0x31