------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 0 PID: 5842 at fs/buffer.c:1235 __brelse fs/buffer.c:1235 [inline] WARNING: CPU: 0 PID: 5842 at fs/buffer.c:1235 brelse include/linux/buffer_head.h:309 [inline] WARNING: CPU: 0 PID: 5842 at fs/buffer.c:1235 __invalidate_bh_lrus fs/buffer.c:1487 [inline] WARNING: CPU: 0 PID: 5842 at fs/buffer.c:1235 invalidate_bh_lru+0x128/0x200 fs/buffer.c:1500 Modules linked in: CPU: 0 PID: 5842 Comm: syslogd Not tainted 6.9.0-rc3-syzkaller-gb5d2afe8745b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __brelse fs/buffer.c:1235 [inline] pc : brelse include/linux/buffer_head.h:309 [inline] pc : __invalidate_bh_lrus fs/buffer.c:1487 [inline] pc : invalidate_bh_lru+0x128/0x200 fs/buffer.c:1500 lr : __brelse fs/buffer.c:1235 [inline] lr : brelse include/linux/buffer_head.h:309 [inline] lr : __invalidate_bh_lrus fs/buffer.c:1487 [inline] lr : invalidate_bh_lru+0x128/0x200 fs/buffer.c:1500 sp : ffff800080007e10 x29: ffff800080007e10 x28: ffff80008ee7d568 x27: 0000000000000000 x26: 0000000000000001 x25: 00000000ffffffff x24: ffff0001b3ddcfd0 x23: 0000000000000000 x22: dfff800000000000 x21: 0000000000000000 x20: ffff0000ef78d318 x19: ffff80008b0bba00 x18: 0000000000000008 x17: 0000000000000000 x16: ffff80008ae71340 x15: 0000000000000001 x14: 1fffe000367b9a02 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000010003 x10: 0000000000ff0100 x9 : 93a51d3dfc4b9600 x8 : 93a51d3dfc4b9600 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff800080007578 x4 : ffff80008ef65060 x3 : ffff8000805e9200 x2 : 0000000000000001 x1 : 0000000100010001 x0 : 0000000000000000 Call trace: __brelse fs/buffer.c:1235 [inline] brelse include/linux/buffer_head.h:309 [inline] __invalidate_bh_lrus fs/buffer.c:1487 [inline] invalidate_bh_lru+0x128/0x200 fs/buffer.c:1500 csd_do_func kernel/smp.c:133 [inline] __flush_smp_call_function_queue+0x534/0x20cc kernel/smp.c:511 generic_smp_call_function_single_interrupt+0x18/0x24 kernel/smp.c:428 do_handle_IPI arch/arm64/kernel/smp.c:900 [inline] ipi_handler+0x1e0/0x7dc arch/arm64/kernel/smp.c:950 handle_percpu_devid_irq+0x174/0x308 kernel/irq/chip.c:942 generic_handle_irq_desc include/linux/irqdesc.h:161 [inline] handle_irq_desc kernel/irq/irqdesc.c:688 [inline] generic_handle_domain_irq+0x7c/0xc4 kernel/irq/irqdesc.c:744 __gic_handle_irq drivers/irqchip/irq-gic-v3.c:771 [inline] __gic_handle_irq_from_irqson drivers/irqchip/irq-gic-v3.c:822 [inline] gic_handle_irq+0x6c/0x190 drivers/irqchip/irq-gic-v3.c:866 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:889 do_interrupt_handler+0xd4/0x138 arch/arm64/kernel/entry-common.c:310 __el1_irq arch/arm64/kernel/entry-common.c:536 [inline] el1_interrupt+0x34/0x68 arch/arm64/kernel/entry-common.c:551 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:556 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:594 __daif_local_irq_restore arch/arm64/include/asm/irqflags.h:175 [inline] arch_local_irq_restore arch/arm64/include/asm/irqflags.h:195 [inline] kasan_quarantine_put+0xb8/0x1c8 mm/kasan/quarantine.c:234 __kasan_slab_free+0x5c/0x70 mm/kasan/common.c:264 kasan_slab_free include/linux/kasan.h:184 [inline] slab_free_hook mm/slub.c:2106 [inline] slab_free mm/slub.c:4280 [inline] kmem_cache_free+0x168/0x3f0 mm/slub.c:4344 security_file_free+0xc8/0xe4 security/security.c:2745 file_free+0x30/0x1f8 fs/file_table.c:65 __fput+0x51c/0x738 fs/file_table.c:435 __fput_sync+0x60/0x9c fs/file_table.c:507 __do_sys_close fs/open.c:1556 [inline] __se_sys_close fs/open.c:1541 [inline] __arm64_sys_close+0x150/0x1e0 fs/open.c:1541 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 irq event stamp: 77714 hardirqs last enabled at (77713): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:234 hardirqs last disabled at (77714): [] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline] hardirqs last disabled at (77714): [] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551 softirqs last enabled at (77704): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (77702): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---