loop3: detected capacity change from 0 to 256 ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 1 PID: 7665 at fs/buffer.c:1229 __brelse fs/buffer.c:1229 [inline] WARNING: CPU: 1 PID: 7665 at fs/buffer.c:1229 brelse include/linux/buffer_head.h:324 [inline] WARNING: CPU: 1 PID: 7665 at fs/buffer.c:1229 bh_lru_install fs/buffer.c:1346 [inline] WARNING: CPU: 1 PID: 7665 at fs/buffer.c:1229 __find_get_block+0xc3c/0xd84 fs/buffer.c:1400 Modules linked in: CPU: 1 UID: 0 PID: 7665 Comm: syz.3.212 Not tainted 6.13.0-rc3-syzkaller-g573067a5a685 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 pstate: 60400005 (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 : bh_lru_install fs/buffer.c:1346 [inline] pc : __find_get_block+0xc3c/0xd84 fs/buffer.c:1400 lr : __brelse fs/buffer.c:1229 [inline] lr : brelse include/linux/buffer_head.h:324 [inline] lr : bh_lru_install fs/buffer.c:1346 [inline] lr : __find_get_block+0xc3c/0xd84 fs/buffer.c:1400 sp : ffff80009ed676a0 x29: ffff80009ed676a0 x28: 0000000000000000 x27: dfff800000000000 x26: 0000000000000006 x25: ffff0000dd337000 x24: 0000000000000009 x23: ffff0000c17d73a0 x22: ffff0000c17d6658 x21: 0000000000000000 x20: ffff0000f1597ee0 x19: ffff0000dd3880e8 x18: 1fffe00036700a7e x17: ffff80008f99d000 x16: ffff800080463930 x15: 0000000000000001 x14: 1fffe000367034d0 x13: ffff80009ed68000 x12: 0000000000000003 x11: 0000000000000001 x10: 0000000000000003 x9 : 583166bef3a27900 x8 : 583166bef3a27900 x7 : ffff8000803cf9cc x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000006 x1 : ffff80008b746ea0 x0 : ffff800123f1a000 Call trace: __brelse fs/buffer.c:1229 [inline] (P) brelse include/linux/buffer_head.h:324 [inline] (P) bh_lru_install fs/buffer.c:1346 [inline] (P) __find_get_block+0xc3c/0xd84 fs/buffer.c:1400 (P) bdev_getblk+0x48/0x62c fs/buffer.c:1425 __bread_gfp+0x90/0x34c fs/buffer.c:1485 sb_bread include/linux/buffer_head.h:346 [inline] exfat_verify_boot_region fs/exfat/super.c:575 [inline] __exfat_fill_super fs/exfat/super.c:622 [inline] exfat_fill_super+0xb30/0x2114 fs/exfat/super.c:678 get_tree_bdev_flags+0x38c/0x494 fs/super.c:1636 get_tree_bdev+0x2c/0x3c fs/super.c:1659 exfat_get_tree+0x28/0x38 fs/exfat/super.c:745 vfs_get_tree+0x90/0x28c fs/super.c:1814 do_new_mount+0x278/0x900 fs/namespace.c:3507 path_mount+0x590/0xe04 fs/namespace.c:3834 do_mount fs/namespace.c:3847 [inline] __do_sys_mount fs/namespace.c:4057 [inline] __se_sys_mount fs/namespace.c:4034 [inline] __arm64_sys_mount+0x4d4/0x5ac fs/namespace.c:4034 __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: 2774 hardirqs last enabled at (2773): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1535 [inline] hardirqs last enabled at (2773): [] finish_lock_switch+0xbc/0x1e4 kernel/sched/core.c:5123 hardirqs last disabled at (2774): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488 softirqs last enabled at (2770): [] softirq_handle_end kernel/softirq.c:407 [inline] softirqs last enabled at (2770): [] handle_softirqs+0xb44/0xd34 kernel/softirq.c:589 softirqs last disabled at (2653): [] __do_softirq+0x14/0x20 kernel/softirq.c:595 ---[ end trace 0000000000000000 ]---