------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 0 PID: 13 at fs/buffer.c:1229 __brelse fs/buffer.c:1229 [inline] WARNING: CPU: 0 PID: 13 at fs/buffer.c:1229 brelse include/linux/buffer_head.h:324 [inline] WARNING: CPU: 0 PID: 13 at fs/buffer.c:1229 __invalidate_bh_lrus fs/buffer.c:1498 [inline] WARNING: CPU: 0 PID: 13 at fs/buffer.c:1229 invalidate_bh_lru+0x128/0x200 fs/buffer.c:1511 Modules linked in: CPU: 0 UID: 0 PID: 13 Comm: kworker/u8:1 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 Workqueue: bat_events batadv_nc_worker 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: ffff0000c19e8010 x26: 0000000000000001 x25: 00000000ffffffff x24: ffff0001b37f3998 x23: 0000000000000058 x22: dfff800000000000 x21: 0000000000000000 x20: ffff0000db383400 x19: ffff80008b842120 x18: 0000000000000008 x17: 0000000000000000 x16: ffff80008b60619c x15: ffff700011f43bc0 x14: 1ffff00011f43bc0 x13: 0000000000000004 x12: ffffffffffffffff x11: 0000000000010003 x10: 0000000000ff0100 x9 : 32beb14338696d00 x8 : 32beb14338696d00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff800080007538 x4 : ffff80008fa90460 x3 : ffff8000804a0b64 x2 : 0000000000000000 x1 : 0000000100010001 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 validate_chain kernel/locking/lockdep.c:3904 [inline] (P) lock_release+0x0/0x9e4 kernel/locking/lockdep.c:5226 (P) rcu_read_unlock include/linux/rcupdate.h:880 [inline] batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:412 [inline] batadv_nc_worker+0x25c/0x580 net/batman-adv/network-coding.c:719 process_one_work+0x7a8/0x15cc kernel/workqueue.c:3229 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x97c/0xeec kernel/workqueue.c:3391 kthread+0x288/0x310 kernel/kthread.c:389 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862 irq event stamp: 2292958 hardirqs last enabled at (2292957): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline] hardirqs last enabled at (2292957): [] _raw_spin_unlock_irq+0x30/0x80 kernel/locking/spinlock.c:202 hardirqs last disabled at (2292958): [] __el1_irq arch/arm64/kernel/entry-common.c:557 [inline] hardirqs last disabled at (2292958): [] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:575 softirqs last enabled at (2292950): [] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (2292950): [] ieee80211_ibss_work+0x2a4/0x11f0 net/mac80211/ibss.c:1665 softirqs last disabled at (2292948): [] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (2292948): [] ieee80211_ibss_work+0xd0/0x11f0 net/mac80211/ibss.c:1654 ---[ end trace 0000000000000000 ]---