el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 hfs: new node 0 already hashed? ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6863 at fs/hfs/bnode.c:428 hfs_bnode_create+0x384/0x430 fs/hfs/bnode.c:427 Modules linked in: CPU: 1 UID: 0 PID: 6863 Comm: syz.3.79 Not tainted 6.15.0-rc4-syzkaller-ge0f4c8dd9d2d #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : hfs_bnode_create+0x384/0x430 fs/hfs/bnode.c:427 lr : hfs_bnode_create+0x384/0x430 fs/hfs/bnode.c:427 sp : ffff8000a1426bd0 x29: ffff8000a1426be0 x28: dfff800000000000 x27: dfff800000000000 x26: 000000000000008c x25: 0000000000000000 x24: 0000000000000080 x23: ffff0000d3db7188 x22: 0000000000000000 x21: 0000000000000000 x20: ffff0000d8cae000 x19: ffff0000d3db7100 x18: 00000000ffffffff x17: 0000000000000000 x16: ffff80008ada5d6c x15: 0000000000000001 x14: 1ffff00014284ce4 x13: 0000000000000000 x12: 0000000000000000 x11: ffff700014284ce5 x10: 0000000000ff0100 x9 : 1cc80adaef598600 x8 : 1cc80adaef598600 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff8000a1426558 x4 : ffff80008f3f4fa0 x3 : ffff800082faeee4 x2 : 0000000000000001 x1 : 0000000100000000 x0 : 000000000000001f Call trace: hfs_bnode_create+0x384/0x430 fs/hfs/bnode.c:427 (P) hfs_bmap_alloc+0x448/0x4dc fs/hfs/btree.c:291 hfs_btree_inc_height+0xf8/0x870 fs/hfs/brec.c:471 hfs_brec_insert+0x5bc/0x96c fs/hfs/brec.c:148 __hfs_ext_write_extent+0x230/0x488 fs/hfs/extent.c:124 __hfs_ext_cache_extent+0x84/0x750 fs/hfs/extent.c:174 hfs_ext_read_extent fs/hfs/extent.c:202 [inline] hfs_extend_file+0x264/0xf4c fs/hfs/extent.c:401 hfs_get_block+0x2e8/0x9cc fs/hfs/extent.c:353 __block_write_begin_int+0x53c/0x15e8 fs/buffer.c:2151 block_write_begin fs/buffer.c:2262 [inline] cont_write_begin+0x62c/0x968 fs/buffer.c:2601 hfs_write_begin+0x7c/0xc4 fs/hfs/inode.c:52 generic_perform_write+0x23c/0x79c mm/filemap.c:4103 __generic_file_write_iter+0xfc/0x204 mm/filemap.c:4220 generic_file_write_iter+0x104/0x470 mm/filemap.c:4246 new_sync_write fs/read_write.c:591 [inline] vfs_write+0x62c/0x97c fs/read_write.c:684 ksys_pwrite64 fs/read_write.c:791 [inline] __do_sys_pwrite64 fs/read_write.c:799 [inline] __se_sys_pwrite64 fs/read_write.c:796 [inline] __arm64_sys_pwrite64+0x170/0x208 fs/read_write.c:796 __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+0x58/0x150 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 irq event stamp: 2306 hardirqs last enabled at (2305): [] __up_console_sem kernel/printk/printk.c:344 [inline] hardirqs last enabled at (2305): [] __console_unlock+0x70/0xc4 kernel/printk/printk.c:2885 hardirqs last disabled at (2306): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488 softirqs last enabled at (1794): [] softirq_handle_end kernel/softirq.c:425 [inline] softirqs last enabled at (1794): [] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:607 softirqs last disabled at (1675): [] __do_softirq+0x14/0x20 kernel/softirq.c:613 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ kernel BUG at fs/hfs/bnode.c:473! Internal error: Oops - BUG: 00000000f2000800 [#1] SMP Modules linked in: CPU: 0 UID: 0 PID: 6863 Comm: syz.3.79 Tainted: G W 6.15.0-rc4-syzkaller-ge0f4c8dd9d2d #0 PREEMPT Tainted: [W]=WARN 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 : hfs_bnode_put+0x31c/0x328 fs/hfs/bnode.c:473 lr : hfs_bnode_put+0x31c/0x328 fs/hfs/bnode.c:473 sp : ffff8000a1426cc0 x29: ffff8000a1426cc0 x28: 0000000000000001 x27: dfff800000000000 x26: ffff700014284dac x25: ffff8000a1426d60 x24: 1fffe0001a7b6e20 x23: dfff800000000000 x22: ffff0000d8cae000 x21: 0000000000000000 x20: ffff0000d3db7180 x19: ffff0000d3db7100 x18: 00000000ffffffff x17: 0000000000000000 x16: ffff80008051ff20 x15: 0000000000000001 x14: 1fffe0001a7b6e30 x13: 0000000000000000 x12: 0000000000000000 x11: ffff60001a7b6e31 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000db90bd00 x7 : ffff800080e080e8 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff800081294748 x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: hfs_bnode_put+0x31c/0x328 fs/hfs/bnode.c:473 (P) hfs_btree_inc_height+0x448/0x870 fs/hfs/brec.c:525 hfs_brec_insert+0x5bc/0x96c fs/hfs/brec.c:148 __hfs_ext_write_extent+0x230/0x488 fs/hfs/extent.c:124 __hfs_ext_cache_extent+0x84/0x750 fs/hfs/extent.c:174 hfs_ext_read_extent fs/hfs/extent.c:202 [inline] hfs_extend_file+0x264/0xf4c fs/hfs/extent.c:401 hfs_get_block+0x2e8/0x9cc fs/hfs/extent.c:353 __block_write_begin_int+0x53c/0x15e8 fs/buffer.c:2151 block_write_begin fs/buffer.c:2262 [inline] cont_write_begin+0x62c/0x968 fs/buffer.c:2601 hfs_write_begin+0x7c/0xc4 fs/hfs/inode.c:52 generic_perform_write+0x23c/0x79c mm/filemap.c:4103 __generic_file_write_iter+0xfc/0x204 mm/filemap.c:4220 generic_file_write_iter+0x104/0x470 mm/filemap.c:4246 new_sync_write fs/read_write.c:591 [inline] vfs_write+0x62c/0x97c fs/read_write.c:684 ksys_pwrite64 fs/read_write.c:791 [inline] __do_sys_pwrite64 fs/read_write.c:799 [inline] __se_sys_pwrite64 fs/read_write.c:796 [inline] __arm64_sys_pwrite64+0x170/0x208 fs/read_write.c:796 __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+0x58/0x150 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 Code: aa1403e0 97e62a02 17ffffd4 97d1ec13 (d4210000) ---[ end trace 0000000000000000 ]---