el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1e0 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: 1 PID: 4480 at fs/btrfs/tree-log.c:3224 btrfs_sync_log+0x1420/0x1f48 fs/btrfs/tree-log.c:3224 Modules linked in: CPU: 1 PID: 4480 Comm: syz-executor.0 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : btrfs_sync_log+0x1420/0x1f48 fs/btrfs/tree-log.c:3224 lr : btrfs_sync_log+0x1420/0x1f48 fs/btrfs/tree-log.c:3224 sp : ffff80001f6a73e0 x29: ffff80001f6a77e0 x28: 00000000fffffff4 x27: 1fffe0001bd32816 x26: ffff0000d9e22000 x25: ffff0000de9940b0 x24: ffff0000de994108 x23: ffff80001f6a74a0 x22: ffff0000d9e20000 x21: ffff0000cf4c04e0 x20: 0000000000000009 x19: ffff0000c95ba000 x18: 0000000000000001 x17: 0000000000000000 x16: ffff8000111cbe1c x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000000 x10: 0000000000000000 x9 : 5dc1409c191a6700 x8 : 5dc1409c191a6700 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f6a6cd8 x4 : ffff80001425f420 x3 : ffff800008504400 x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 Call trace: btrfs_sync_log+0x1420/0x1f48 fs/btrfs/tree-log.c:3224 btrfs_sync_file+0x990/0xe7c fs/btrfs/file.c:2371 vfs_fsync_range+0x168/0x188 fs/sync.c:188 generic_write_sync include/linux/fs.h:2989 [inline] btrfs_file_write_iter+0x99c/0xbe8 fs/btrfs/file.c:2099 call_write_iter include/linux/fs.h:2172 [inline] new_sync_write fs/read_write.c:507 [inline] vfs_write+0x7c8/0xa2c fs/read_write.c:594 ksys_write+0x120/0x210 fs/read_write.c:647 __do_sys_write fs/read_write.c:659 [inline] __se_sys_write fs/read_write.c:656 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:656 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1e0 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: 80984 hardirqs last enabled at (80983): [] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:257 hardirqs last disabled at (80984): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (80958): [] softirq_handle_end kernel/softirq.c:419 [inline] softirqs last enabled at (80958): [] handle_softirqs+0xa4c/0xbf0 kernel/softirq.c:604 softirqs last disabled at (80887): [] __do_softirq kernel/softirq.c:610 [inline] softirqs last disabled at (80887): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (80887): [] invoke_softirq kernel/softirq.c:457 [inline] softirqs last disabled at (80887): [] __irq_exit_rcu+0x240/0x440 kernel/softirq.c:659 ---[ end trace d31adbed9a76ab82 ]--- BTRFS: error (device loop0) in btrfs_sync_log:3224: errno=-12 Out of memory BTRFS info (device loop0): forced readonly