jffs2: warning: (6406) jffs2_sum_write_sumnode: Empty summary info!!!
------------[ cut here ]------------
kernel BUG at fs/jffs2/summary.c:868!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 6406 Comm: jffs2_gcd_mtd0 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:jffs2_sum_write_sumnode+0x2602/0x2610 fs/jffs2/summary.c:868
Code: 89 d9 80 e1 07 80 c1 03 38 c1 7c 08 48 89 df e8 b4 66 f2 fe 8b 33 48 c7 c7 c0 7c 48 8c 48 c7 c2 40 fb 82 8e e8 2f fa e1 fd 90 <0f> 0b e8 a7 3d 82 fe 90 0f 0b cc cc cc cc 90 90 90 90 90 90 90 90
RSP: 0018:ffffc9000bfaf360 EFLAGS: 00010246
RAX: 0000000000000045 RBX: ffff88802e4ea580 RCX: f1d467dd25534b00
RDX: 0000000000000000 RSI: 8000000000000000 RDI: 0000000000000000
RBP: ffffc9000bfaf4f0 R08: ffffc9000bfaf0e7 R09: 1ffff920017f5e1c
R10: dffffc0000000000 R11: fffff520017f5e1d R12: ffff8880597c6270
R13: ffff8880597c6590 R14: 0000000000000000 R15: 1ffff920017f5e7c
FS:  0000000000000000(0000) GS:ffff88812495b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000080 CR3: 0000000077fbc000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 jffs2_do_reserve_space+0x213/0x1750 fs/jffs2/nodemgmt.c:392
 jffs2_reserve_space_gc+0x45/0xf0 fs/jffs2/nodemgmt.c:226
 jffs2_garbage_collect_pristine+0xfa/0xe40 fs/jffs2/gc.c:613
 jffs2_garbage_collect_live+0x686/0x34d0 fs/jffs2/gc.c:546
 jffs2_garbage_collect_pass+0x1ab0/0x2170 fs/jffs2/gc.c:464
 jffs2_garbage_collect_thread+0x693/0x720 fs/jffs2/background.c:155
 kthread+0x38b/0x480 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:jffs2_sum_write_sumnode+0x2602/0x2610 fs/jffs2/summary.c:868
Code: 89 d9 80 e1 07 80 c1 03 38 c1 7c 08 48 89 df e8 b4 66 f2 fe 8b 33 48 c7 c7 c0 7c 48 8c 48 c7 c2 40 fb 82 8e e8 2f fa e1 fd 90 <0f> 0b e8 a7 3d 82 fe 90 0f 0b cc cc cc cc 90 90 90 90 90 90 90 90
RSP: 0018:ffffc9000bfaf360 EFLAGS: 00010246
RAX: 0000000000000045 RBX: ffff88802e4ea580 RCX: f1d467dd25534b00
RDX: 0000000000000000 RSI: 8000000000000000 RDI: 0000000000000000
RBP: ffffc9000bfaf4f0 R08: ffffc9000bfaf0e7 R09: 1ffff920017f5e1c
R10: dffffc0000000000 R11: fffff520017f5e1d R12: ffff8880597c6270
R13: ffff8880597c6590 R14: 0000000000000000 R15: 1ffff920017f5e7c
FS:  0000000000000000(0000) GS:ffff88812495b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb6f8aecff8 CR3: 0000000033178000 CR4: 00000000003526f0