------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 0 PID: 6428 at fs/buffer.c:1229 __brelse fs/buffer.c:1229 [inline] WARNING: CPU: 0 PID: 6428 at fs/buffer.c:1229 brelse include/linux/buffer_head.h:324 [inline] WARNING: CPU: 0 PID: 6428 at fs/buffer.c:1229 __invalidate_bh_lrus fs/buffer.c:1498 [inline] WARNING: CPU: 0 PID: 6428 at fs/buffer.c:1229 invalidate_bh_lru+0x128/0x200 fs/buffer.c:1511 Modules linked in: CPU: 0 UID: 0 PID: 6428 Comm: syz-executor Tainted: G W 6.13.0-rc6-syzkaller-g6251d1776bc5 #0 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __brelse fs/buffer.c:1229 [inline] pc : brelse include/linux/buffer_head.h:324 [inline] pc : __invalidate_bh_lrus fs/buffer.c:1498 [inline] pc : invalidate_bh_lru+0x128/0x200 fs/buffer.c:1511 lr : __brelse fs/buffer.c:1229 [inline] lr : brelse include/linux/buffer_head.h:324 [inline] lr : __invalidate_bh_lrus fs/buffer.c:1498 [inline] lr : invalidate_bh_lru+0x128/0x200 fs/buffer.c:1511 sp : ffff800080007e10 x29: ffff800080007e10 x28: 0000000000000001 x27: ffff0000d97d3c90 x26: 0000000000000001 x25: 00000000ffffffff x24: ffff0001b37f3998 x23: 0000000000000048 x22: dfff800000000000 x21: 0000000000000000 x20: ffff0000db60fc28 x19: ffff80008b842120 x18: 0000000000000008 x17: 0000000000000000 x16: ffff80008b60619c x15: ffff700011f43bc0 x14: 1ffff00011f43bc0 x13: 0000000000000004 x12: ffffffffffffffff x11: 0000000000010005 x10: 0000000000ff0100 x9 : 6feddbf480d5b700 x8 : 6feddbf480d5b700 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff800080007538 x4 : ffff80008fa90460 x3 : ffff8000804a0b64 x2 : 0000000000000000 x1 : 0000000100010003 x0 : 0000000000000000 Call trace: __brelse fs/buffer.c:1229 [inline] (P) brelse include/linux/buffer_head.h:324 [inline] (P) __invalidate_bh_lrus fs/buffer.c:1498 [inline] (P) invalidate_bh_lru+0x128/0x200 fs/buffer.c:1511 (P) csd_do_func kernel/smp.c:134 [inline] __flush_smp_call_function_queue+0x520/0x20b4 kernel/smp.c:540 generic_smp_call_function_single_interrupt+0x18/0x24 kernel/smp.c:457 do_handle_IPI arch/arm64/kernel/smp.c:968 [inline] ipi_handler+0x1d8/0x7d4 arch/arm64/kernel/smp.c:1016 handle_percpu_devid_irq+0x174/0x308 kernel/irq/chip.c:942 generic_handle_irq_desc include/linux/irqdesc.h:173 [inline] handle_irq_desc kernel/irq/irqdesc.c:714 [inline] generic_handle_domain_irq+0x7c/0xc4 kernel/irq/irqdesc.c:770 __gic_handle_irq drivers/irqchip/irq-gic-v3.c:865 [inline] __gic_handle_irq_from_irqson drivers/irqchip/irq-gic-v3.c:916 [inline] gic_handle_irq+0x6c/0x190 drivers/irqchip/irq-gic-v3.c:960 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:891 do_interrupt_handler+0xd4/0x138 arch/arm64/kernel/entry-common.c:310 __el1_irq arch/arm64/kernel/entry-common.c:560 [inline] el1_interrupt+0x34/0x68 arch/arm64/kernel/entry-common.c:575 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:580 el1h_64_irq+0x6c/0x70 arch/arm64/kernel/entry.S:596 __daif_local_irq_restore arch/arm64/include/asm/irqflags.h:175 [inline] (P) arch_local_irq_restore arch/arm64/include/asm/irqflags.h:195 [inline] (P) lock_acquire+0x278/0x724 kernel/locking/lockdep.c:5852 (P) rcu_lock_acquire+0x44/0x54 include/linux/rcupdate.h:337 rcu_read_lock include/linux/rcupdate.h:849 [inline] page_ext_get+0x2c/0x2e8 mm/page_ext.c:525 page_table_check_set+0xa0/0x408 mm/page_table_check.c:114 __page_table_check_ptes_set+0x2d0/0x398 mm/page_table_check.c:225 page_table_check_ptes_set include/linux/page_table_check.h:74 [inline] __set_ptes arch/arm64/include/asm/pgtable.h:427 [inline] set_ptes arch/arm64/include/asm/pgtable.h:1673 [inline] __copy_present_ptes mm/memory.c:967 [inline] copy_present_ptes mm/memory.c:1050 [inline] copy_pte_range mm/memory.c:1173 [inline] copy_pmd_range mm/memory.c:1261 [inline] copy_pud_range+0x6430/0x8064 mm/memory.c:1298 copy_p4d_range mm/memory.c:1322 [inline] copy_page_range+0x5fc/0xc4c mm/memory.c:1420 dup_mmap kernel/fork.c:748 [inline] dup_mm kernel/fork.c:1691 [inline] copy_mm+0xe68/0x1b58 kernel/fork.c:1743 copy_process+0x1568/0x3250 kernel/fork.c:2394 kernel_clone+0x1d8/0x82c kernel/fork.c:2806 __do_sys_clone kernel/fork.c:2949 [inline] __se_sys_clone kernel/fork.c:2917 [inline] __arm64_sys_clone+0x1f8/0x24c kernel/fork.c:2917 __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+0x54/0x168 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 irq event stamp: 649766 hardirqs last enabled at (649765): [] lruvec_stat_mod_folio include/linux/vmstat.h:557 [inline] hardirqs last enabled at (649765): [] lruvec_stat_add_folio include/linux/vmstat.h:615 [inline] hardirqs last enabled at (649765): [] pagetable_pte_ctor include/linux/mm.h:3001 [inline] hardirqs last enabled at (649765): [] __pte_alloc_one_noprof include/asm-generic/pgalloc.h:73 [inline] hardirqs last enabled at (649765): [] pte_alloc_one_noprof+0x1f8/0x324 include/asm-generic/pgalloc.h:93 hardirqs last disabled at (649766): [] __el1_irq arch/arm64/kernel/entry-common.c:557 [inline] hardirqs last disabled at (649766): [] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:575 softirqs last enabled at (649716): [] softirq_handle_end kernel/softirq.c:407 [inline] softirqs last enabled at (649716): [] handle_softirqs+0xb44/0xd34 kernel/softirq.c:589 softirqs last disabled at (649585): [] __do_softirq+0x14/0x20 kernel/softirq.c:595 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 0 PID: 6428 at fs/buffer.c:1229 __brelse fs/buffer.c:1229 [inline] WARNING: CPU: 0 PID: 6428 at fs/buffer.c:1229 brelse include/linux/buffer_head.h:324 [inline] WARNING: CPU: 0 PID: 6428 at fs/buffer.c:1229 __invalidate_bh_lrus fs/buffer.c:1498 [inline] WARNING: CPU: 0 PID: 6428 at fs/buffer.c:1229 invalidate_bh_lru+0x128/0x200 fs/buffer.c:1511 Modules linked in: CPU: 0 UID: 0 PID: 6428 Comm: syz-executor Tainted: G W 6.13.0-rc6-syzkaller-g6251d1776bc5 #0 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __brelse fs/buffer.c:1229 [inline] pc : brelse include/linux/buffer_head.h:324 [inline] pc : __invalidate_bh_lrus fs/buffer.c:1498 [inline] pc : invalidate_bh_lru+0x128/0x200 fs/buffer.c:1511 lr : __brelse fs/buffer.c:1229 [inline] lr : brelse include/linux/buffer_head.h:324 [inline] lr : __invalidate_bh_lrus fs/buffer.c:1498 [inline] lr : invalidate_bh_lru+0x128/0x200 fs/buffer.c:1511 sp : ffff800080007e10 x29: ffff800080007e10 x28: 0000000000000001 x27: ffff0000d97d3c90 x26: 0000000000000001 x25: 00000000ffffffff x24: ffff0001b37f3998 x23: 0000000000000050 x22: dfff800000000000 x21: 0000000000000000 x20: ffff0000f2f3c060 x19: ffff80008b842120 x18: 0000000000000008 x17: 0000000000000000 x16: ffff80008b60619c x15: ffff700011f43bc0 x14: 1ffff00011f43bc0 x13: 0000000000000004 x12: ffffffffffffffff x11: 0000000000010005 x10: 0000000000ff0100 x9 : 6feddbf480d5b700 x8 : 6feddbf480d5b700 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff800080007538 x4 : ffff80008fa90460 x3 : ffff8000804a0b64 x2 : 0000000000000000 x1 : 0000000100010003 x0 : 0000000000000000 Call trace: __brelse fs/buffer.c:1229 [inline] (P) brelse include/linux/buffer_head.h:324 [inline] (P) __invalidate_bh_lrus fs/buffer.c:1498 [inline] (P) invalidate_bh_lru+0x128/0x200 fs/buffer.c:1511 (P) csd_do_func kernel/smp.c:134 [inline] __flush_smp_call_function_queue+0x520/0x20b4 kernel/smp.c:540 generic_smp_call_function_single_interrupt+0x18/0x24 kernel/smp.c:457 do_handle_IPI arch/arm64/kernel/smp.c:968 [inline] ipi_handler+0x1d8/0x7d4 arch/arm64/kernel/smp.c:1016 handle_percpu_devid_irq+0x174/0x308 kernel/irq/chip.c:942 generic_handle_irq_desc include/linux/irqdesc.h:173 [inline] handle_irq_desc kernel/irq/irqdesc.c:714 [inline] generic_handle_domain_irq+0x7c/0xc4 kernel/irq/irqdesc.c:770 __gic_handle_irq drivers/irqchip/irq-gic-v3.c:865 [inline] __gic_handle_irq_from_irqson drivers/irqchip/irq-gic-v3.c:916 [inline] gic_handle_irq+0x6c/0x190 drivers/irqchip/irq-gic-v3.c:960 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:891 do_interrupt_handler+0xd4/0x138 arch/arm64/kernel/entry-common.c:310 __el1_irq arch/arm64/kernel/entry-common.c:560 [inline] el1_interrupt+0x34/0x68 arch/arm64/kernel/entry-common.c:575 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:580 el1h_64_irq+0x6c/0x70 arch/arm64/kernel/entry.S:596 __daif_local_irq_restore arch/arm64/include/asm/irqflags.h:175 [inline] (P) arch_local_irq_restore arch/arm64/include/asm/irqflags.h:195 [inline] (P) lock_acquire+0x278/0x724 kernel/locking/lockdep.c:5852 (P) rcu_lock_acquire+0x44/0x54 include/linux/rcupdate.h:337 rcu_read_lock include/linux/rcupdate.h:849 [inline] page_ext_get+0x2c/0x2e8 mm/page_ext.c:525 page_table_check_set+0xa0/0x408 mm/page_table_check.c:114 __page_table_check_ptes_set+0x2d0/0x398 mm/page_table_check.c:225 page_table_check_ptes_set include/linux/page_table_check.h:74 [inline] __set_ptes arch/arm64/include/asm/pgtable.h:427 [inline] set_ptes arch/arm64/include/asm/pgtable.h:1673 [inline] __copy_present_ptes mm/memory.c:967 [inline] copy_present_ptes mm/memory.c:1050 [inline] copy_pte_range mm/memory.c:1173 [inline] copy_pmd_range mm/memory.c:1261 [inline] copy_pud_range+0x6430/0x8064 mm/memory.c:1298 copy_p4d_range mm/memory.c:1322 [inline] copy_page_range+0x5fc/0xc4c mm/memory.c:1420 dup_mmap kernel/fork.c:748 [inline] dup_mm kernel/fork.c:1691 [inline] copy_mm+0xe68/0x1b58 kernel/fork.c:1743 copy_process+0x1568/0x3250 kernel/fork.c:2394 kernel_clone+0x1d8/0x82c kernel/fork.c:2806 __do_sys_clone kernel/fork.c:2949 [inline] __se_sys_clone kernel/fork.c:2917 [inline] __arm64_sys_clone+0x1f8/0x24c kernel/fork.c:2917 __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+0x54/0x168 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 irq event stamp: 649766 hardirqs last enabled at (649765): [] lruvec_stat_mod_folio include/linux/vmstat.h:557 [inline] hardirqs last enabled at (649765): [] lruvec_stat_add_folio include/linux/vmstat.h:615 [inline] hardirqs last enabled at (649765): [] pagetable_pte_ctor include/linux/mm.h:3001 [inline] hardirqs last enabled at (649765): [] __pte_alloc_one_noprof include/asm-generic/pgalloc.h:73 [inline] hardirqs last enabled at (649765): [] pte_alloc_one_noprof+0x1f8/0x324 include/asm-generic/pgalloc.h:93 hardirqs last disabled at (649766): [] __el1_irq arch/arm64/kernel/entry-common.c:557 [inline] hardirqs last disabled at (649766): [] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:575 softirqs last enabled at (649716): [] softirq_handle_end kernel/softirq.c:407 [inline] softirqs last enabled at (649716): [] handle_softirqs+0xb44/0xd34 kernel/softirq.c:589 softirqs last disabled at (649585): [] __do_softirq+0x14/0x20 kernel/softirq.c:595 ---[ end trace 0000000000000000 ]---