hfsplus: new node 0 already hashed? ------------[ cut here ]------------ WARNING: CPU: 0 PID: 7136 at fs/hfsplus/bnode.c:671 hfsplus_bnode_create+0x384/0x430 fs/hfsplus/bnode.c:670 Modules linked in: CPU: 0 UID: 0 PID: 7136 Comm: syz.3.95 Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : hfsplus_bnode_create+0x384/0x430 fs/hfsplus/bnode.c:670 lr : hfsplus_bnode_create+0x384/0x430 fs/hfsplus/bnode.c:670 sp : ffff80009fe06a50 x29: ffff80009fe06a60 x28: 1ffff00013fc0d58 x27: dfff800000000000 x26: 0000000000000000 x25: 0000000000000080 x24: 0000000000000000 x23: ffff0000e15b50f8 x22: 0000000000000000 x21: 0000000000000000 x20: ffff0000d405a000 x19: ffff0000d4cca900 x18: 00000000ffffffff x17: ffff800093605000 x16: ffff80008b065ce0 x15: 0000000000000001 x14: 1ffff00013fc0c84 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000080000 x10: 000000000001c545 x9 : 1ceddb09d8e69000 x8 : 1ceddb09d8e69000 x7 : ffff80008056636c x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000002 x2 : 0000000000000002 x1 : 0000000100000000 x0 : 0000000000000023 Call trace: hfsplus_bnode_create+0x384/0x430 fs/hfsplus/bnode.c:670 (P) hfsplus_bmap_alloc+0x43c/0x4cc fs/hfsplus/btree.c:415 hfs_btree_inc_height+0xf8/0x8e0 fs/hfsplus/brec.c:475 hfsplus_brec_insert+0x108/0xaa8 fs/hfsplus/brec.c:75 hfsplus_create_attr+0x2e8/0x368 fs/hfsplus/attributes.c:252 __hfsplus_setxattr+0x914/0x1ebc fs/hfsplus/xattr.c:358 hfsplus_initxattrs+0x18c/0x244 fs/hfsplus/xattr_security.c:59 security_inode_init_security+0x6dc/0x7f4 security/security.c:1852 hfsplus_init_security+0x40/0x54 fs/hfsplus/xattr_security.c:71 hfsplus_fill_super+0x1080/0x16fc fs/hfsplus/super.c:566 get_tree_bdev_flags+0x360/0x414 fs/super.c:1692 get_tree_bdev+0x2c/0x3c fs/super.c:1715 hfsplus_get_tree+0x28/0x38 fs/hfsplus/super.c:638 vfs_get_tree+0x90/0x28c fs/super.c:1815 do_new_mount+0x278/0x7f4 fs/namespace.c:3808 path_mount+0x5b4/0xde0 fs/namespace.c:4123 do_mount fs/namespace.c:4136 [inline] __do_sys_mount fs/namespace.c:4347 [inline] __se_sys_mount fs/namespace.c:4324 [inline] __arm64_sys_mount+0x3e8/0x468 fs/namespace.c:4324 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 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+0x5c/0x254 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:763 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 2482 hardirqs last enabled at (2481): [] vprintk_store+0x898/0xac8 kernel/printk/printk.c:2356 hardirqs last disabled at (2482): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:434 softirqs last enabled at (1830): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (1828): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ kernel BUG at fs/hfsplus/bnode.c:716! Internal error: Oops - BUG: 00000000f2000800 [#1] SMP Modules linked in: CPU: 1 UID: 0 PID: 7136 Comm: syz.3.95 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : hfsplus_bnode_put+0x490/0x49c fs/hfsplus/bnode.c:716 lr : hfsplus_bnode_put+0x490/0x49c fs/hfsplus/bnode.c:716 sp : ffff80009fe06b20 x29: ffff80009fe06b20 x28: 0000000000000000 x27: dfff800000000000 x26: ffff700013fc0d78 x25: ffff80009fe06bc0 x24: 1fffe0001a999520 x23: ffff0000d405a000 x22: dfff800000000000 x21: 0000000000000000 x20: ffff0000d4cca980 x19: ffff0000d4cca900 x18: 00000000ffffffff x17: ffff800093605000 x16: ffff80008b065bd0 x15: 0000000000000001 x14: 1fffe0001a999530 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000080000 x10: 0000000000039be2 x9 : ffff8000a5d2d000 x8 : 0000000000039be3 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000000 x3 : ffff8000812d92ac x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: hfsplus_bnode_put+0x490/0x49c fs/hfsplus/bnode.c:716 (P) hfs_btree_inc_height+0x48c/0x8e0 fs/hfsplus/brec.c:530 hfsplus_brec_insert+0x108/0xaa8 fs/hfsplus/brec.c:75 hfsplus_create_attr+0x2e8/0x368 fs/hfsplus/attributes.c:252 __hfsplus_setxattr+0x914/0x1ebc fs/hfsplus/xattr.c:358 hfsplus_initxattrs+0x18c/0x244 fs/hfsplus/xattr_security.c:59 security_inode_init_security+0x6dc/0x7f4 security/security.c:1852 hfsplus_init_security+0x40/0x54 fs/hfsplus/xattr_security.c:71 hfsplus_fill_super+0x1080/0x16fc fs/hfsplus/super.c:566 get_tree_bdev_flags+0x360/0x414 fs/super.c:1692 get_tree_bdev+0x2c/0x3c fs/super.c:1715 hfsplus_get_tree+0x28/0x38 fs/hfsplus/super.c:638 vfs_get_tree+0x90/0x28c fs/super.c:1815 do_new_mount+0x278/0x7f4 fs/namespace.c:3808 path_mount+0x5b4/0xde0 fs/namespace.c:4123 do_mount fs/namespace.c:4136 [inline] __do_sys_mount fs/namespace.c:4347 [inline] __se_sys_mount fs/namespace.c:4324 [inline] __arm64_sys_mount+0x3e8/0x468 fs/namespace.c:4324 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 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+0x5c/0x254 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:763 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 Code: aa1403e0 97e62db3 17ffffb4 97d17205 (d4210000) ---[ end trace 0000000000000000 ]---