el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1d0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
------------[ cut here ]------------
WARNING: CPU: 0 PID: 4648 at fs/btrfs/file.c:2983 btrfs_replace_file_extents+0xcc4/0x1238 fs/btrfs/file.c:2983
Modules linked in:
CPU: 0 PID: 4648 Comm: syz-executor.0 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026
pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : btrfs_replace_file_extents+0xcc4/0x1238 fs/btrfs/file.c:2983
lr : btrfs_replace_file_extents+0xcc4/0x1238 fs/btrfs/file.c:2983
sp : ffff80001fa97440
x29: ffff80001fa97560 x28: dfff800000000000 x27: 0000000000000000
x26: ffff0000ca599e00 x25: ffff80001fa97890 x24: ffff0000e2056220
x23: ffff700003f52e98 x22: 00000000fffffff4 x21: 1fffe0001bca87c3
x20: ffff0000de543dc0 x19: ffff0000de543e18 x18: 0000000000000001
x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff
x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000000000000000 x9 : 5e2b3d307046e800
x8 : 5e2b3d307046e800 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80001fa96d58 x4 : ffff80001436f3e0 x3 : ffff800008508fa8
x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026
Call trace:
 btrfs_replace_file_extents+0xcc4/0x1238 fs/btrfs/file.c:2983
 btrfs_clone+0xb7c/0x1d14 fs/btrfs/reflink.c:492
 btrfs_clone_files+0x278/0x320 fs/btrfs/reflink.c:740
 btrfs_remap_file_range+0x488/0xb9c fs/btrfs/reflink.c:888
 vfs_copy_file_range+0xab0/0x10fc fs/read_write.c:1510
 __do_sys_copy_file_range fs/read_write.c:1588 [inline]
 __se_sys_copy_file_range fs/read_write.c:1551 [inline]
 __arm64_sys_copy_file_range+0x540/0x8d4 fs/read_write.c:1551
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1d0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
irq event stamp: 81814
hardirqs last  enabled at (81813): [<ffff8000082fb500>] __up_console_sem+0xb4/0xfc kernel/printk/printk.c:257
hardirqs last disabled at (81814): [<ffff800011250e4c>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396
softirqs last  enabled at (81794): [<ffff80000819fb84>] softirq_handle_end kernel/softirq.c:419 [inline]
softirqs last  enabled at (81794): [<ffff80000819fb84>] handle_softirqs+0xa40/0xbe4 kernel/softirq.c:604
softirqs last disabled at (81661): [<ffff8000081a0188>] __do_softirq kernel/softirq.c:610 [inline]
softirqs last disabled at (81661): [<ffff8000081a0188>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (81661): [<ffff8000081a0188>] invoke_softirq kernel/softirq.c:457 [inline]
softirqs last disabled at (81661): [<ffff8000081a0188>] __irq_exit_rcu+0x240/0x43c kernel/softirq.c:659
---[ end trace b1243b3c039d752a ]---
BTRFS: error (device loop0) in btrfs_replace_file_extents:2983: errno=-12 Out of memory
BTRFS info (device loop0): forced readonly