EXT4-fs (loop1): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 1 PID: 7042 at fs/buffer.c:1229 __brelse fs/buffer.c:1229 [inline] WARNING: CPU: 1 PID: 7042 at fs/buffer.c:1229 brelse include/linux/buffer_head.h:324 [inline] WARNING: CPU: 1 PID: 7042 at fs/buffer.c:1229 bh_lru_install fs/buffer.c:1346 [inline] WARNING: CPU: 1 PID: 7042 at fs/buffer.c:1229 __find_get_block+0xc3c/0xd84 fs/buffer.c:1400 Modules linked in: CPU: 1 UID: 0 PID: 7042 Comm: syz.1.122 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 : ffff80009edb7240 x29: ffff80009edb7240 x28: 0000000000000000 x27: dfff800000000000 x26: 0000000000000013 x25: ffff0000f597f828 x24: 000000000000000a x23: ffff0000f597f658 x22: ffff0000db7db488 x21: 0000000000000000 x20: ffff0000f597e400 x19: ffff0000f597f570 x18: 0000000000000008 x17: 0000000000000000 x16: ffff800083275834 x15: 0000000000000001 x14: 1ffff00013db6d90 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000080000 x10: 0000000000009172 x9 : 3d8cf7e7d0345200 x8 : 3d8cf7e7d0345200 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80009edb6978 x4 : ffff80008fa8f840 x3 : ffff8000832108fc x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000 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 __getblk include/linux/buffer_head.h:380 [inline] sb_getblk include/linux/buffer_head.h:386 [inline] ext4_read_inode_bitmap+0x1d0/0x1020 fs/ext4/ialloc.c:144 __ext4_new_inode+0xd4c/0x37dc fs/ext4/ialloc.c:1055 ext4_create+0x234/0x480 fs/ext4/namei.c:2841 lookup_open fs/namei.c:3649 [inline] open_last_lookups fs/namei.c:3748 [inline] path_openat+0x13e4/0x2b14 fs/namei.c:3984 do_filp_open+0x1e8/0x404 fs/namei.c:4014 do_sys_openat2+0x124/0x1b8 fs/open.c:1402 do_sys_open fs/open.c:1417 [inline] __do_sys_openat fs/open.c:1433 [inline] __se_sys_openat fs/open.c:1428 [inline] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1428 __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: 2950 hardirqs last enabled at (2949): [<ffff8000804aab50>] __up_console_sem kernel/printk/printk.c:344 [inline] hardirqs last enabled at (2949): [<ffff8000804aab50>] __console_unlock+0x70/0xc4 kernel/printk/printk.c:2869 hardirqs last disabled at (2950): [<ffff80008b69c83c>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488 softirqs last enabled at (2562): [<ffff800080129934>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (2560): [<ffff800080129900>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---