loop0: detected capacity change from 0 to 1024 hfsplus: new node 0 already hashed? ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4872 at fs/hfsplus/bnode.c:584 hfsplus_bnode_create+0x428/0x4ec fs/hfsplus/bnode.c:583 Modules linked in: CPU: 0 PID: 4872 Comm: syz.0.15 Not tainted 5.15.179-syzkaller #0 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 : hfsplus_bnode_create+0x428/0x4ec fs/hfsplus/bnode.c:583 lr : hfsplus_bnode_create+0x428/0x4ec fs/hfsplus/bnode.c:583 sp : ffff80001d236c70 x29: ffff80001d236c80 x28: ffff0000e456f0f8 x27: ffff0000e456f000 x26: 00000000000000f8 x25: dfff800000000000 x24: 0000000000000000 x23: 0000000000000000 x22: ffff0000eb8b60e0 x21: ffff0000eb8b6000 x20: 0000000000000000 x19: ffff0000c0b1b600 x18: ffff80001d2362a0 x17: 1fffe0003682e78e x16: ffff800011b5ac80 x15: 000000000001afbf x14: 1ffff0000296e06c x13: dfff800000000000 x12: 0000000000000001 x11: 0000000000000000 x10: 0000000000000000 x9 : ab47c322fdc73e00 x8 : ab47c322fdc73e00 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff80000aa1313c x2 : ffff0001b4173d10 x1 : 0000000100000000 x0 : 0000000000000023 Call trace: hfsplus_bnode_create+0x428/0x4ec fs/hfsplus/bnode.c:583 hfsplus_bmap_alloc+0x5a4/0x698 fs/hfsplus/btree.c:414 hfs_btree_inc_height+0xf8/0xa60 fs/hfsplus/brec.c:475 hfsplus_brec_insert+0x11c/0xaa0 fs/hfsplus/brec.c:75 __hfsplus_ext_write_extent+0x288/0x4bc fs/hfsplus/extents.c:107 __hfsplus_ext_cache_extent+0x84/0xa84 fs/hfsplus/extents.c:186 hfsplus_ext_read_extent fs/hfsplus/extents.c:218 [inline] hfsplus_file_extend+0x390/0x14e0 fs/hfsplus/extents.c:462 hfsplus_get_block+0x398/0x1194 fs/hfsplus/extents.c:245 __block_write_begin_int+0x3ec/0x1608 fs/buffer.c:2012 __block_write_begin fs/buffer.c:2062 [inline] block_write_begin fs/buffer.c:2122 [inline] cont_write_begin+0x538/0x710 fs/buffer.c:2471 hfsplus_write_begin+0xa8/0xf8 fs/hfsplus/inode.c:53 generic_perform_write+0x24c/0x520 mm/filemap.c:3785 __generic_file_write_iter+0x230/0x454 mm/filemap.c:3912 generic_file_write_iter+0xb4/0x1b8 mm/filemap.c:3944 call_write_iter include/linux/fs.h:2172 [inline] new_sync_write fs/read_write.c:507 [inline] vfs_write+0x884/0xb44 fs/read_write.c:594 ksys_write+0x15c/0x26c fs/read_write.c:647 __do_sys_write fs/read_write.c:659 [inline] __se_sys_write fs/read_write.c:656 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:656 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 4974 hardirqs last enabled at (4973): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1338 [inline] hardirqs last enabled at (4973): [] finish_lock_switch+0xbc/0x1e8 kernel/sched/core.c:4783 hardirqs last disabled at (4974): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (4966): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (4966): [] handle_softirqs+0xb88/0xdbc kernel/softirq.c:586 softirqs last disabled at (4953): [] __do_softirq kernel/softirq.c:592 [inline] softirqs last disabled at (4953): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (4953): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (4953): [] __irq_exit_rcu+0x268/0x4d8 kernel/softirq.c:641 ---[ end trace db36d61ec3e9f1d3 ]--- ------------[ cut here ]------------ kernel BUG at fs/hfsplus/bnode.c:631! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 4872 Comm: syz.0.15 Tainted: G W 5.15.179-syzkaller #0 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 : hfsplus_bnode_put+0x588/0x594 fs/hfsplus/bnode.c:631 lr : hfsplus_bnode_put+0x588/0x594 fs/hfsplus/bnode.c:631 sp : ffff80001d236d80 x29: ffff80001d236d80 x28: dfff800000000000 x27: ffff700003a46dc8 x26: 1fffe0001d716c03 x25: ffff0000eb8b6000 x24: 1fffe000181636c0 x23: dfff800000000000 x22: ffff0000c0b1b600 x21: ffff0000c0b1b680 x20: 0000000000000000 x19: ffff0000c0b1b600 x18: ffff80001d2362a0 x17: 1fffe0003682e78e x16: ffff800011b5ae10 x15: 000000000001afbf x14: 1ffff0000296e06c x13: dfff800000000000 x12: 0000000000000001 x11: 0000000000000000 x10: 0000000000000000 x9 : ffff0000ca4f9b40 x8 : ffff800008fc9b98 x7 : ffff800008925004 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800008fc966c x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: hfsplus_bnode_put+0x588/0x594 fs/hfsplus/bnode.c:631 hfs_btree_inc_height+0x4fc/0xa60 fs/hfsplus/brec.c:530 hfsplus_brec_insert+0x11c/0xaa0 fs/hfsplus/brec.c:75 __hfsplus_ext_write_extent+0x288/0x4bc fs/hfsplus/extents.c:107 __hfsplus_ext_cache_extent+0x84/0xa84 fs/hfsplus/extents.c:186 hfsplus_ext_read_extent fs/hfsplus/extents.c:218 [inline] hfsplus_file_extend+0x390/0x14e0 fs/hfsplus/extents.c:462 hfsplus_get_block+0x398/0x1194 fs/hfsplus/extents.c:245 __block_write_begin_int+0x3ec/0x1608 fs/buffer.c:2012 __block_write_begin fs/buffer.c:2062 [inline] block_write_begin fs/buffer.c:2122 [inline] cont_write_begin+0x538/0x710 fs/buffer.c:2471 hfsplus_write_begin+0xa8/0xf8 fs/hfsplus/inode.c:53 generic_perform_write+0x24c/0x520 mm/filemap.c:3785 __generic_file_write_iter+0x230/0x454 mm/filemap.c:3912 generic_file_write_iter+0xb4/0x1b8 mm/filemap.c:3944 call_write_iter include/linux/fs.h:2172 [inline] new_sync_write fs/read_write.c:507 [inline] vfs_write+0x884/0xb44 fs/read_write.c:594 ksys_write+0x15c/0x26c fs/read_write.c:647 __do_sys_write fs/read_write.c:659 [inline] __se_sys_write fs/read_write.c:656 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:656 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Code: aa1403e0 97e4385b 17ffff77 97d3edd1 (d4210000) ---[ end trace db36d61ec3e9f1d4 ]---