hfsplus: new node 0 already hashed? ------------[ cut here ]------------ WARNING: CPU: 1 PID: 8790 at fs/hfsplus/bnode.c:671 hfsplus_bnode_create+0x384/0x430 fs/hfsplus/bnode.c:670 Modules linked in: CPU: 1 UID: 0 PID: 8790 Comm: syz.4.385 Not tainted 6.17.0-rc1-syzkaller-g8f5ae30d69d7 #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 : ffff80009f626a50 x29: ffff80009f626a60 x28: 1ffff00013ec4d58 x27: dfff800000000000 x26: 0000000000000000 x25: 0000000000000080 x24: 0000000000000000 x23: ffff0000fa7d50f8 x22: 0000000000000000 x21: 0000000000000000 x20: ffff0000c5dec000 x19: ffff0000cb896600 x18: 1fffe000337a0688 x17: ffff80008f7be000 x16: ffff80008b007230 x15: 0000000000000001 x14: 1ffff00013ec4cc0 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000080000 x10: 00000000000177c9 x9 : b0b6669f05b35000 x8 : b0b6669f05b35000 x7 : ffff800080563af4 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000807de560 x2 : 0000000000000001 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:3805 path_mount+0x5b4/0xde0 fs/namespace.c:4120 do_mount fs/namespace.c:4133 [inline] __do_sys_mount fs/namespace.c:4344 [inline] __se_sys_mount fs/namespace.c:4321 [inline] __arm64_sys_mount+0x3e8/0x468 fs/namespace.c:4321 __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+0x58/0x180 arch/arm64/kernel/entry-common.c:879 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 2346 hardirqs last enabled at (2345): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:86 [inline] hardirqs last enabled at (2345): [] exit_to_kernel_mode+0xc0/0xf0 arch/arm64/kernel/entry-common.c:96 hardirqs last disabled at (2346): [] el1_brk64+0x1c/0x48 arch/arm64/kernel/entry-common.c:574 softirqs last enabled at (1886): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (1884): [] 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: 0 UID: 0 PID: 8790 Comm: syz.4.385 Tainted: G W 6.17.0-rc1-syzkaller-g8f5ae30d69d7 #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 : ffff80009f626b20 x29: ffff80009f626b20 x28: 0000000000000000 x27: dfff800000000000 x26: ffff700013ec4d78 x25: ffff80009f626bc0 x24: 1fffe00019712cc0 x23: ffff0000c5dec000 x22: dfff800000000000 x21: 0000000000000000 x20: ffff0000cb896680 x19: ffff0000cb896600 x18: 1fffe000337a0688 x17: ffff80008f7be000 x16: ffff80008b007230 x15: 0000000000000001 x14: 1fffe00019712cd0 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000080000 x10: 00000000000324c8 x9 : ffff8000a81c5000 x8 : 00000000000324c9 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000000 x3 : ffff8000812ee580 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:3805 path_mount+0x5b4/0xde0 fs/namespace.c:4120 do_mount fs/namespace.c:4133 [inline] __do_sys_mount fs/namespace.c:4344 [inline] __se_sys_mount fs/namespace.c:4321 [inline] __arm64_sys_mount+0x3e8/0x468 fs/namespace.c:4321 __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+0x58/0x180 arch/arm64/kernel/entry-common.c:879 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 Code: aa1403e0 97e5fd53 17ffffb4 97d102eb (d4210000) ---[ end trace 0000000000000000 ]---