BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
turning off the locking correctness validator.
CPU: 0 PID: 6578 Comm: syz.7.285 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf8/0x160 lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 add_chain_cache kernel/locking/lockdep.c:-1 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3772 [inline]
 validate_chain kernel/locking/lockdep.c:3793 [inline]
 __lock_acquire+0x1b40/0x6544 kernel/locking/lockdep.c:5049
 lock_acquire+0x20c/0x644 kernel/locking/lockdep.c:5662
 do_write_seqcount_begin_nested include/linux/seqlock.h:515 [inline]
 do_write_seqcount_begin include/linux/seqlock.h:541 [inline]
 psi_account_irqtime+0x32c/0x7c4 kernel/sched/psi.c:1035
 __schedule+0x794/0x1b18 kernel/sched/core.c:6555
 preempt_schedule_irq+0x8c/0x1b8 kernel/sched/core.c:6873
 arm64_preempt_schedule_irq+0x44/0x58 arch/arm64/kernel/entry-common.c:265
 __el1_irq arch/arm64/kernel/entry-common.c:474 [inline]
 el1_interrupt+0x3c/0x54 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
 arch_local_irq_restore arch/arm64/include/asm/irqflags.h:122 [inline]
 lock_acquire+0x24c/0x644 kernel/locking/lockdep.c:5665
 fs_reclaim_acquire+0xc4/0x124 mm/page_alloc.c:4736
 might_alloc include/linux/sched/mm.h:271 [inline]
 slab_pre_alloc_hook mm/slab.h:710 [inline]
 slab_alloc_node mm/slub.c:3279 [inline]
 __kmem_cache_alloc_node+0x54/0x320 mm/slub.c:3398
 __do_kmalloc_node mm/slab_common.c:935 [inline]
 __kmalloc_node_track_caller+0xcc/0x16c mm/slab_common.c:956
 memdup_sockptr include/linux/sockptr.h:101 [inline]
 ipv6_set_mcast_msfilter+0xd4/0x27c net/ipv6/ipv6_sockglue.c:215
 do_ipv6_setsockopt+0xb74/0x311c net/ipv6/ipv6_sockglue.c:902
 ipv6_setsockopt+0x6c/0x1a0 net/ipv6/ipv6_sockglue.c:1024
 sctp_setsockopt+0x150/0x1004 net/sctp/socket.c:4586
 sock_common_setsockopt+0xb0/0xcc net/core/sock.c:3687
 __sys_setsockopt+0x2f8/0x504 net/socket.c:2288
 __do_sys_setsockopt net/socket.c:2299 [inline]
 __se_sys_setsockopt net/socket.c:2296 [inline]
 __arm64_sys_setsockopt+0xb8/0xd4 net/socket.c:2296
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x138 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
loop7: detected capacity change from 0 to 8192
REISERFS warning:  read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
REISERFS (device loop7): found reiserfs format "3.5" with non-standard journal
REISERFS (device loop7): using ordered data mode
reiserfs: using flush barriers
REISERFS (device loop7): journal params: device loop7, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
REISERFS (device loop7): checking transaction log (loop7)
REISERFS (device loop7): Using r5 hash to sort names
REISERFS (device loop7): Created .reiserfs_priv - reserved for xattr storage.