syzkaller login: [ 69.629546][ T1954] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.0.158' (ED25519) to the list of known hosts. executing program [ 71.168539][ T3973] loop0: detected capacity change from 0 to 32768 [ 71.173672][ T3973] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz-executor131 (3973) [ 71.181209][ T3973] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 71.183533][ T3973] BTRFS info (device loop0): using free space tree [ 71.185242][ T3973] BTRFS info (device loop0): has skinny extents [ 71.202220][ T3973] BTRFS info (device loop0): enabling ssd optimizations [ 71.224815][ T3973] ------------[ cut here ]------------ [ 71.226272][ T3973] WARNING: CPU: 0 PID: 3973 at fs/read_write.c:525 __kernel_write+0x734/0x8b0 [ 71.228628][ T3973] Modules linked in: [ 71.229737][ T3973] CPU: 0 PID: 3973 Comm: syz-executor131 Not tainted 5.15.131-syzkaller #0 [ 71.231975][ T3973] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 71.234626][ T3973] pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 71.236676][ T3973] pc : __kernel_write+0x734/0x8b0 [ 71.237976][ T3973] lr : __kernel_write+0x730/0x8b0 [ 71.239290][ T3973] sp : ffff80001a1474e0 [ 71.240400][ T3973] x29: ffff80001a147650 x28: ffff700003428ea8 x27: ffff0000c2ea40e8 [ 71.242570][ T3973] x26: 0000000000000011 x25: dfff800000000000 x24: 1fffe0001b4e0810 [ 71.244690][ T3973] x23: ffff80001a147560 x22: fffffffffffffff7 x21: ffff0000da704084 [ 71.246813][ T3973] x20: ffff80001a147540 x19: ffff0000da704000 x18: ffff80001a147520 [ 71.248973][ T3973] x17: ffff8000089bc888 x16: ffff800011964b6c x15: 000000000000c87a [ 71.251074][ T3973] x14: 1ffff0000292006a x13: ffffffffffffffff x12: 0000000000000000 [ 71.253162][ T3973] x11: ff8080000896f35c x10: 0000000000000000 x9 : ffff80000896f35c [ 71.255340][ T3973] x8 : ffff0000c1068000 x7 : 0000000000000000 x6 : 0000000000000000 [ 71.257408][ T3973] x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000020 [ 71.259542][ T3973] x2 : 0000000000000008 x1 : 0000000000000000 x0 : 0000000000000000 [ 71.261638][ T3973] Call trace: [ 71.262473][ T3973] __kernel_write+0x734/0x8b0 [ 71.263740][ T3973] kernel_write+0xe0/0x1ec [ 71.264878][ T3973] send_subvol+0x164/0x37cc [ 71.266062][ T3973] btrfs_ioctl_send+0x15b0/0x1a50 [ 71.267398][ T3973] _btrfs_ioctl_send+0x340/0x498 [ 71.268708][ T3973] btrfs_ioctl+0x5e0/0xa5c [ 71.269901][ T3973] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.271165][ T3973] invoke_syscall+0x98/0x2b8 [ 71.272406][ T3973] el0_svc_common+0x138/0x258 [ 71.273673][ T3973] do_el0_svc+0x58/0x14c [ 71.274742][ T3973] el0_svc+0x7c/0x1f0 [ 71.275763][ T3973] el0t_64_sync_handler+0x84/0xe4 [ 71.277053][ T3973] el0t_64_sync+0x1a0/0x1a4 [ 71.278238][ T3973] irq event stamp: 86134 [ 71.279526][ T3973] hardirqs last enabled at (86133): [] _raw_spin_unlock_irqrestore+0xac/0x158 [ 71.282420][ T3973] hardirqs last disabled at (86134): [] el1_dbg+0x24/0x80 [ 71.284690][ T3973] softirqs last enabled at (86022): [] local_bh_enable+0x10/0x34 [ 71.287190][ T3973] softirqs last disabled at (86020): [] local_bh_disable+0x10/0x34 [ 71.289695][ T3973] ---[ end trace 119a14f621c43a77 ]---