REISERFS (device loop0): Using r5 hash to sort names REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. ================================================================== BUG: KASAN: out-of-bounds in leaf_insert_into_buf+0x1f4/0x748 fs/reiserfs/lbalance.c:933 Read of size 18446744073709551384 at addr ffff0000e2a50000 by task syz-executor317/4222 CPU: 1 PID: 4222 Comm: syz-executor317 Not tainted 6.1.70-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 Call trace: dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:284 [inline] print_report+0x174/0x4c0 mm/kasan/report.c:395 kasan_report+0xd4/0x130 mm/kasan/report.c:495 kasan_check_range+0x264/0x2a4 mm/kasan/generic.c:189 memmove+0x48/0x90 mm/kasan/shadow.c:54 leaf_insert_into_buf+0x1f4/0x748 fs/reiserfs/lbalance.c:933 balance_leaf_new_nodes_insert fs/reiserfs/do_balan.c:1001 [inline] balance_leaf_new_nodes fs/reiserfs/do_balan.c:1243 [inline] balance_leaf+0x61f0/0xe860 fs/reiserfs/do_balan.c:1450 do_balance+0x27c/0x788 fs/reiserfs/do_balan.c:1888 reiserfs_insert_item+0x940/0xa84 fs/reiserfs/stree.c:2261 indirect2direct+0x58c/0xa40 fs/reiserfs/tail_conversion.c:283 maybe_indirect_to_direct fs/reiserfs/stree.c:1587 [inline] reiserfs_cut_from_item+0x854/0x1c98 fs/reiserfs/stree.c:1694 reiserfs_do_truncate+0x89c/0x11c8 fs/reiserfs/stree.c:1973 reiserfs_truncate_file+0x510/0xb1c fs/reiserfs/inode.c:2310 reiserfs_truncate_failed_write fs/reiserfs/inode.c:2743 [inline] reiserfs_write_end+0x640/0x800 fs/reiserfs/inode.c:2958 generic_perform_write+0x384/0x55c mm/filemap.c:3819 __generic_file_write_iter+0x168/0x388 mm/filemap.c:3936 generic_file_write_iter+0xb8/0x2b4 mm/filemap.c:3968 call_write_iter include/linux/fs.h:2248 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x610/0x914 fs/read_write.c:584 ksys_write+0x15c/0x26c fs/read_write.c:637 __do_sys_write fs/read_write.c:649 [inline] __se_sys_write fs/read_write.c:646 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:646 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 The buggy address belongs to the physical page: page:00000000e6292fba refcount:3 mapcount:0 mapping:00000000ab1996da index:0x0 pfn:0x122a50 memcg:ffff0000c0938000 aops:reiserfs_address_space_operations ino:4 dentry name:"" flags: 0x5ffd0000000201f(locked|referenced|uptodate|dirty|lru|private|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffd0000000201f fffffc0006cba388 fffffc000318cb88 ffff0000e20890f8 raw: 0000000000000000 ffff0000e206b0e8 00000003ffffffff ffff0000c0938000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000e2a4ff00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff0000e2a4ff80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff0000e2a50000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ^ ffff0000e2a50080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff0000e2a50100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ================================================================== ------------[ cut here ]------------ DEBUG_RWSEMS_WARN_ON(sem->magic != sem): count = 0x0, magic = 0x200, owner = 0xffff800012289b80, curr 0xffff0000d53f0000, list not empty WARNING: CPU: 1 PID: 4222 at kernel/locking/rwsem.c:1292 __down_read_trylock kernel/locking/rwsem.c:1292 [inline] WARNING: CPU: 1 PID: 4222 at kernel/locking/rwsem.c:1292 down_read_trylock+0x378/0x3bc kernel/locking/rwsem.c:1559 Modules linked in: CPU: 1 PID: 4222 Comm: syz-executor317 Tainted: G B 6.1.70-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __down_read_trylock kernel/locking/rwsem.c:1292 [inline] pc : down_read_trylock+0x378/0x3bc kernel/locking/rwsem.c:1559 lr : __down_read_trylock kernel/locking/rwsem.c:1292 [inline] lr : down_read_trylock+0x378/0x3bc kernel/locking/rwsem.c:1559 sp : ffff80001dbd5c20 x29: ffff80001dbd5c90 x28: 000000009600004f x27: 0000000094000000 x26: 1fffe0001bc7d6e8 x25: 0000000000000000 x24: ffff0000d53f0000 x23: ffff800012289b80 x22: 0000000000000200 x21: ffff0000de3eb730 x20: ffff0000de3eb6d8 x19: ffff80000885d084 x18: ffff80001dbd6d6c x17: 0000000000000000 x16: ffff80001214740c x15: 0000000000000000 x14: 00000000ffffffff x13: 0000000000000001 x12: 0000000000000001 x11: 0000000000ff0100 x10: 0000000000000000 x9 : 8f50b97fd5cb8600 x8 : 8f50b97fd5cb8600 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001dbd5518 x4 : ffff800015902b20 x3 : ffff80000858785c x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000 Call trace: __down_read_trylock kernel/locking/rwsem.c:1292 [inline] down_read_trylock+0x378/0x3bc kernel/locking/rwsem.c:1559 mmap_read_trylock include/linux/mmap_lock.h:136 [inline] get_mmap_lock_carefully mm/memory.c:5284 [inline] lock_mm_and_find_vma+0x38/0x2e8 mm/memory.c:5346 do_page_fault+0x2d0/0x890 arch/arm64/mm/fault.c:577 do_mem_abort+0x74/0x200 arch/arm64/mm/fault.c:803 el1_abort+0x3c/0x5c arch/arm64/kernel/entry-common.c:367 el1h_64_sync_handler+0x60/0xac arch/arm64/kernel/entry-common.c:427 el1h_64_sync+0x64/0x68 arch/arm64/kernel/entry.S:580 __memcpy+0x1e8/0x240 arch/arm64/lib/memcpy.S:220 leaf_insert_into_buf+0x2ac/0x748 fs/reiserfs/lbalance.c:948 balance_leaf_new_nodes_insert fs/reiserfs/do_balan.c:1001 [inline] balance_leaf_new_nodes fs/reiserfs/do_balan.c:1243 [inline] balance_leaf+0x61f0/0xe860 fs/reiserfs/do_balan.c:1450 do_balance+0x27c/0x788 fs/reiserfs/do_balan.c:1888 reiserfs_insert_item+0x940/0xa84 fs/reiserfs/stree.c:2261 indirect2direct+0x58c/0xa40 fs/reiserfs/tail_conversion.c:283 maybe_indirect_to_direct fs/reiserfs/stree.c:1587 [inline] reiserfs_cut_from_item+0x854/0x1c98 fs/reiserfs/stree.c:1694 reiserfs_do_truncate+0x89c/0x11c8 fs/reiserfs/stree.c:1973 reiserfs_truncate_file+0x510/0xb1c fs/reiserfs/inode.c:2310 reiserfs_truncate_failed_write fs/reiserfs/inode.c:2743 [inline] reiserfs_write_end+0x640/0x800 fs/reiserfs/inode.c:2958 generic_perform_write+0x384/0x55c mm/filemap.c:3819 __generic_file_write_iter+0x168/0x388 mm/filemap.c:3936 generic_file_write_iter+0xb8/0x2b4 mm/filemap.c:3968 call_write_iter include/linux/fs.h:2248 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x610/0x914 fs/read_write.c:584 ksys_write+0x15c/0x26c fs/read_write.c:637 __do_sys_write fs/read_write.c:649 [inline] __se_sys_write fs/read_write.c:646 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:646 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 48167 hardirqs last enabled at (48167): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1366 [inline] hardirqs last enabled at (48167): [] __schedule+0xff8/0x1c98 kernel/sched/core.c:6564 hardirqs last disabled at (48166): [] __schedule+0x2a4/0x1c98 kernel/sched/core.c:6457 softirqs last enabled at (47758): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (47756): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4222 at kernel/fork.c:790 __mmdrop+0x2f4/0x3d8 kernel/fork.c:790 Modules linked in: CPU: 1 PID: 4222 Comm: syz-executor317 Tainted: G B W 6.1.70-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __mmdrop+0x2f4/0x3d8 kernel/fork.c:790 lr : __mmdrop+0x2f4/0x3d8 kernel/fork.c:790 sp : ffff80001dbd5840 x29: ffff80001dbd5840 x28: 1fffe000368729f7 x27: ffff800015821130 x26: dfff800000000000 x25: 0000000000000402 x24: ffff0001b4394fb8 x23: ffff0000d81d37b4 x22: dfff800000000000 x21: ffff0000d53f0000 x20: ffff0000d53f04e0 x19: ffff0000de3eb600 x18: 1fffe00036870376 x17: ffff80001581d000 x16: ffff800012145f4c x15: ffff0001b4381bbc x14: ffff0001b4381bb8 x13: 1fffe00036870376 x12: 0000000000000001 x11: 0000000000ff0100 x10: 0000000000000000 x9 : ffff8000081a05f8 x8 : ffff0000d53f0000 x7 : 1fffe00036870377 x6 : ffff80000827c3a8 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff80000826a0f4 x2 : 0000000000000001 x1 : 0000000000000004 x0 : ffff0000de3eb600 Call trace: __mmdrop+0x2f4/0x3d8 kernel/fork.c:790 mmdrop include/linux/sched/mm.h:50 [inline] mmdrop_sched include/linux/sched/mm.h:78 [inline] finish_task_switch+0x568/0x624 kernel/sched/core.c:5149 context_switch kernel/sched/core.c:5248 [inline] __schedule+0xee8/0x1c98 kernel/sched/core.c:6558 preempt_schedule_irq+0x8c/0x1b8 kernel/sched/core.c:6870 arm64_preempt_schedule_irq arch/arm64/kernel/entry-common.c:265 [inline] __el1_irq arch/arm64/kernel/entry-common.c:474 [inline] el1_interrupt+0x4c/0x68 arch/arm64/kernel/entry-common.c:486 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:491 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:581 __down_read_trylock kernel/locking/rwsem.c:1292 [inline] down_read_trylock+0x37c/0x3bc kernel/locking/rwsem.c:1559 mmap_read_trylock include/linux/mmap_lock.h:136 [inline] get_mmap_lock_carefully mm/memory.c:5284 [inline] lock_mm_and_find_vma+0x38/0x2e8 mm/memory.c:5346 do_page_fault+0x2d0/0x890 arch/arm64/mm/fault.c:577 do_mem_abort+0x74/0x200 arch/arm64/mm/fault.c:803 el1_abort+0x3c/0x5c arch/arm64/kernel/entry-common.c:367 el1h_64_sync_handler+0x60/0xac arch/arm64/kernel/entry-common.c:427 el1h_64_sync+0x64/0x68 arch/arm64/kernel/entry.S:580 __memcpy+0x1e8/0x240 arch/arm64/lib/memcpy.S:220 leaf_insert_into_buf+0x2ac/0x748 fs/reiserfs/lbalance.c:948 balance_leaf_new_nodes_insert fs/reiserfs/do_balan.c:1001 [inline] balance_leaf_new_nodes fs/reiserfs/do_balan.c:1243 [inline] balance_leaf+0x61f0/0xe860 fs/reiserfs/do_balan.c:1450 do_balance+0x27c/0x788 fs/reiserfs/do_balan.c:1888 reiserfs_insert_item+0x940/0xa84 fs/reiserfs/stree.c:2261 indirect2direct+0x58c/0xa40 fs/reiserfs/tail_conversion.c:283 maybe_indirect_to_direct fs/reiserfs/stree.c:1587 [inline] reiserfs_cut_from_item+0x854/0x1c98 fs/reiserfs/stree.c:1694 reiserfs_do_truncate+0x89c/0x11c8 fs/reiserfs/stree.c:1973 reiserfs_truncate_file+0x510/0xb1c fs/reiserfs/inode.c:2310 reiserfs_truncate_failed_write fs/reiserfs/inode.c:2743 [inline] reiserfs_write_end+0x640/0x800 fs/reiserfs/inode.c:2958 generic_perform_write+0x384/0x55c mm/filemap.c:3819 __generic_file_write_iter+0x168/0x388 mm/filemap.c:3936 generic_file_write_iter+0xb8/0x2b4 mm/filemap.c:3968 call_write_iter include/linux/fs.h:2248 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x610/0x914 fs/read_write.c:584 ksys_write+0x15c/0x26c fs/read_write.c:637 __do_sys_write fs/read_write.c:649 [inline] __se_sys_write fs/read_write.c:646 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:646 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 48167 hardirqs last enabled at (48167): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1366 [inline] hardirqs last enabled at (48167): [] __schedule+0xff8/0x1c98 kernel/sched/core.c:6564 hardirqs last disabled at (48166): [] __schedule+0x2a4/0x1c98 kernel/sched/core.c:6457 softirqs last enabled at (47758): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (47756): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4222 at kernel/fork.c:791 __mmdrop+0x300/0x3d8 kernel/fork.c:791 Modules linked in: CPU: 1 PID: 4222 Comm: syz-executor317 Tainted: G B W 6.1.70-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __mmdrop+0x300/0x3d8 kernel/fork.c:791 lr : __mmdrop+0x300/0x3d8 kernel/fork.c:791 sp : ffff80001dbd5840 x29: ffff80001dbd5840 x28: 1fffe000368729f7 x27: ffff800015821130 x26: dfff800000000000 x25: 0000000000000402 x24: ffff0001b4394fb8 x23: ffff0000d81d37b4 x22: dfff800000000000 x21: ffff0000d53f0000 x20: ffff0000d53f04e8 x19: ffff0000de3eb600 x18: 1fffe00036870376 x17: ffff80001581d000 x16: ffff800012145f4c x15: ffff0001b4381bbc x14: ffff0001b4381bb8 x13: 1fffe00036870376 x12: 0000000000000001 x11: 0000000000ff0100 x10: 0000000000000000 x9 : ffff8000081a0604 x8 : ffff0000d53f0000 x7 : 1fffe00036870377 x6 : ffff80000827c3a8 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff80000826a0f4 x2 : 0000000000000001 x1 : 0000000000000004 x0 : ffff0000de3eb600 Call trace: __mmdrop+0x300/0x3d8 kernel/fork.c:791 mmdrop include/linux/sched/mm.h:50 [inline] mmdrop_sched include/linux/sched/mm.h:78 [inline] finish_task_switch+0x568/0x624 kernel/sched/core.c:5149 context_switch kernel/sched/core.c:5248 [inline] __schedule+0xee8/0x1c98 kernel/sched/core.c:6558 preempt_schedule_irq+0x8c/0x1b8 kernel/sched/core.c:6870 arm64_preempt_schedule_irq arch/arm64/kernel/entry-common.c:265 [inline] __el1_irq arch/arm64/kernel/entry-common.c:474 [inline] el1_interrupt+0x4c/0x68 arch/arm64/kernel/entry-common.c:486 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:491 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:581 __down_read_trylock kernel/locking/rwsem.c:1292 [inline] down_read_trylock+0x37c/0x3bc kernel/locking/rwsem.c:1559 mmap_read_trylock include/linux/mmap_lock.h:136 [inline] get_mmap_lock_carefully mm/memory.c:5284 [inline] lock_mm_and_find_vma+0x38/0x2e8 mm/memory.c:5346 do_page_fault+0x2d0/0x890 arch/arm64/mm/fault.c:577 do_mem_abort+0x74/0x200 arch/arm64/mm/fault.c:803 el1_abort+0x3c/0x5c arch/arm64/kernel/entry-common.c:367 el1h_64_sync_handler+0x60/0xac arch/arm64/kernel/entry-common.c:427 el1h_64_sync+0x64/0x68 arch/arm64/kernel/entry.S:580 __memcpy+0x1e8/0x240 arch/arm64/lib/memcpy.S:220 leaf_insert_into_buf+0x2ac/0x748 fs/reiserfs/lbalance.c:948 balance_leaf_new_nodes_insert fs/reiserfs/do_balan.c:1001 [inline] balance_leaf_new_nodes fs/reiserfs/do_balan.c:1243 [inline] balance_leaf+0x61f0/0xe860 fs/reiserfs/do_balan.c:1450 do_balance+0x27c/0x788 fs/reiserfs/do_balan.c:1888 reiserfs_insert_item+0x940/0xa84 fs/reiserfs/stree.c:2261 indirect2direct+0x58c/0xa40 fs/reiserfs/tail_conversion.c:283 maybe_indirect_to_direct fs/reiserfs/stree.c:1587 [inline] reiserfs_cut_from_item+0x854/0x1c98 fs/reiserfs/stree.c:1694 reiserfs_do_truncate+0x89c/0x11c8 fs/reiserfs/stree.c:1973 reiserfs_truncate_file+0x510/0xb1c fs/reiserfs/inode.c:2310 reiserfs_truncate_failed_write fs/reiserfs/inode.c:2743 [inline] reiserfs_write_end+0x640/0x800 fs/reiserfs/inode.c:2958 generic_perform_write+0x384/0x55c mm/filemap.c:3819 __generic_file_write_iter+0x168/0x388 mm/filemap.c:3936 generic_file_write_iter+0xb8/0x2b4 mm/filemap.c:3968 call_write_iter include/linux/fs.h:2248 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x610/0x914 fs/read_write.c:584 ksys_write+0x15c/0x26c fs/read_write.c:637 __do_sys_write fs/read_write.c:649 [inline] __se_sys_write fs/read_write.c:646 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:646 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 48167 hardirqs last enabled at (48167): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1366 [inline] hardirqs last enabled at (48167): [] __schedule+0xff8/0x1c98 kernel/sched/core.c:6564 hardirqs last disabled at (48166): [] __schedule+0x2a4/0x1c98 kernel/sched/core.c:6457 softirqs last enabled at (47758): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (47756): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ kernel BUG at mm/page_alloc.c:5644!