BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm BTRFS info (device loop0): using free space tree BTRFS info (device loop0): enabling ssd optimizations ------------[ cut here ]------------ WARNING: CPU: 0 PID: 25683 at fs/read_write.c:504 __kernel_write_iter+0x508/0x5f8 Modules linked in: CPU: 0 PID: 25683 Comm: syz-executor.0 Not tainted 6.1.59-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __kernel_write_iter+0x508/0x5f8 lr : __kernel_write_iter+0x504/0x5f8 fs/read_write.c:504 sp : ffff8000212074c0 x29: ffff8000212075a0 x28: ffff700004240ea0 x27: ffff800021207640 x26: dfff800000000000 x25: fffffffffffffff7 x24: 1fffe0001caeca3f x23: ffff0000e57651fc x22: ffff0000cc960c08 x21: dfff800000000000 x20: ffff0000e5765180 x19: 00000000000a801d x18: ffff800021207560 x17: 0000000000000000 x16: ffff800012078100 x15: 00000000200000c0 x14: 1ffff00002b160b0 x13: dfff800000000000 x12: 0000000000040000 x11: 00000000000021a6 x10: ffff80001e319000 x9 : ffff800008a3cd5c x8 : 00000000000021a7 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000011 x3 : 0000000000000001 x2 : ffff0000cc960c08 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: __kernel_write_iter+0x508/0x5f8 __kernel_write fs/read_write.c:537 [inline] kernel_write+0x1b0/0x2f0 fs/read_write.c:558 write_buf fs/btrfs/send.c:591 [inline] send_header fs/btrfs/send.c:709 [inline] send_subvol+0x174/0x3f0c fs/btrfs/send.c:7679 btrfs_ioctl_send+0x1c40/0x21b4 fs/btrfs/send.c:8045 _btrfs_ioctl_send+0x314/0x468 fs/btrfs/ioctl.c:5249 btrfs_ioctl+0x638/0xb08 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 75606 hardirqs last enabled at (75605): [] ___slab_alloc+0xd08/0xee0 mm/slub.c:3132 hardirqs last disabled at (75606): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (75570): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (75568): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---