REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop0): checking transaction log (loop0) REISERFS (device loop0): Using r5 hash to sort names REISERFS (device loop0): using 3.5.x disk format BUG: unable to handle page fault for address: ffff88811a826000 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 5601067 P4D 5601067 PUD 109315063 PMD 11a825063 PTE 100040020 Oops: 0002 [#1] PREEMPT SMP CPU: 1 PID: 2266 Comm: syz-executor.0 Not tainted 5.18.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 RIP: 0010:__memmove+0x28/0x1b0 arch/x86/lib/memmove_64.S:41 Code: 66 90 f3 0f 1e fa 48 89 f8 48 39 fe 7d 0f 49 89 f0 49 01 d0 49 39 f8 0f 8f b5 00 00 00 48 83 fa 20 0f 82 01 01 00 00 48 89 d1 a4 c3 48 81 fa a8 02 00 00 72 05 40 38 fe 74 47 48 83 ea 20 48 RSP: 0018:ffffc90002c17660 EFLAGS: 00010286 RAX: ffff88811112dfb4 RBX: ffff88811112dfa4 RCX: fffffffff6907f94 RDX: ffffffffffffffe0 RSI: ffff88811a825ff0 RDI: ffff88811a826000 RBP: ffff88811112df84 R08: ffff88811112df84 R09: ffff88811112dfb4 R10: 0000000000000020 R11: 0000ff0100000001 R12: 0000000000000001 R13: ffff88811112df84 R14: 0000000000000002 R15: 0000000000000010 FS: 00007f0f8099a6c0(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff88811a826000 CR3: 0000000105bfa000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: leaf_paste_entries+0x130/0x200 fs/reiserfs/lbalance.c:1377 balance_leaf_finish_node_paste_dirent fs/reiserfs/do_balan.c:1295 [inline] balance_leaf_finish_node_paste fs/reiserfs/do_balan.c:1321 [inline] balance_leaf_finish_node fs/reiserfs/do_balan.c:1364 [inline] balance_leaf+0x221a/0x2400 fs/reiserfs/do_balan.c:1452 do_balance+0xa8/0x1c0 fs/reiserfs/do_balan.c:1888 reiserfs_paste_into_item+0x28b/0x2c0 fs/reiserfs/stree.c:2159 reiserfs_add_entry+0x316/0x460 fs/reiserfs/namei.c:567 reiserfs_mkdir+0x244/0x340 fs/reiserfs/namei.c:860 xattr_mkdir fs/reiserfs/xattr.c:76 [inline] create_privroot fs/reiserfs/xattr.c:889 [inline] reiserfs_xattr_init+0x105/0x2c0 fs/reiserfs/xattr.c:1012 reiserfs_fill_super+0xb4d/0xdc0 fs/reiserfs/super.c:2177 mount_bdev+0x177/0x1a0 fs/super.c:1367 legacy_get_tree+0x2c/0x50 fs/fs_context.c:610 vfs_get_tree+0x1c/0x80 fs/super.c:1497 do_new_mount fs/namespace.c:3040 [inline] path_mount+0x475/0xba0 fs/namespace.c:3370 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount fs/namespace.c:3568 [inline] __x64_sys_mount+0x111/0x150 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f0f7fc7e1ea Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f0f80999ee8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f0f80999f80 RCX: 00007f0f7fc7e1ea RDX: 0000000020001100 RSI: 0000000020000040 RDI: 00007f0f80999f40 RBP: 0000000020001100 R08: 00007f0f80999f80 R09: 0000000000000080 R10: 0000000000000080 R11: 0000000000000246 R12: 0000000020000040 R13: 00007f0f80999f40 R14: 00000000000010f6 R15: 00000000200000c0 Modules linked in: CR2: ffff88811a826000 ---[ end trace 0000000000000000 ]--- RIP: 0010:__memmove+0x28/0x1b0 arch/x86/lib/memmove_64.S:41 Code: 66 90 f3 0f 1e fa 48 89 f8 48 39 fe 7d 0f 49 89 f0 49 01 d0 49 39 f8 0f 8f b5 00 00 00 48 83 fa 20 0f 82 01 01 00 00 48 89 d1 a4 c3 48 81 fa a8 02 00 00 72 05 40 38 fe 74 47 48 83 ea 20 48 RSP: 0018:ffffc90002c17660 EFLAGS: 00010286 RAX: ffff88811112dfb4 RBX: ffff88811112dfa4 RCX: fffffffff6907f94 RDX: ffffffffffffffe0 RSI: ffff88811a825ff0 RDI: ffff88811a826000 RBP: ffff88811112df84 R08: ffff88811112df84 R09: ffff88811112dfb4 R10: 0000000000000020 R11: 0000ff0100000001 R12: 0000000000000001 R13: ffff88811112df84 R14: 0000000000000002 R15: 0000000000000010 FS: 00007f0f8099a6c0(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff88811a826000 CR3: 0000000105bfa000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 66 90 xchg %ax,%ax 2: f3 0f 1e fa endbr64 6: 48 89 f8 mov %rdi,%rax 9: 48 39 fe cmp %rdi,%rsi c: 7d 0f jge 0x1d e: 49 89 f0 mov %rsi,%r8 11: 49 01 d0 add %rdx,%r8 14: 49 39 f8 cmp %rdi,%r8 17: 0f 8f b5 00 00 00 jg 0xd2 1d: 48 83 fa 20 cmp $0x20,%rdx 21: 0f 82 01 01 00 00 jb 0x128 27: 48 89 d1 mov %rdx,%rcx * 2a: f3 a4 rep movsb %ds:(%rsi),%es:(%rdi) <-- trapping instruction 2c: c3 ret 2d: 48 81 fa a8 02 00 00 cmp $0x2a8,%rdx 34: 72 05 jb 0x3b 36: 40 38 fe cmp %dil,%sil 39: 74 47 je 0x82 3b: 48 83 ea 20 sub $0x20,%rdx 3f: 48 rex.W