------------[ cut here ]------------ kernel BUG at fs/jffs2/gc.c:226! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 1 UID: 0 PID: 12631 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 07/16/2026 RIP: 0010:jffs2_garbage_collect_pass+0x20e7/0x2170 fs/jffs2/gc.c:226 Code: 24 ee fd 48 8b 7c 24 20 e8 46 d9 99 08 90 0f 0b e8 de 6b 8d fe bf 02 00 00 00 e8 74 d5 5a fe e9 9d e7 ff ff e8 ca 6b 8d fe 90 <0f> 0b e8 c2 6b 8d fe bf 02 00 00 00 e8 58 d5 5a fe e9 7a f8 ff ff RSP: 0018:ffffc9000354faa0 EFLAGS: 00010293 RAX: ffffffff83399596 RBX: 0000000000000006 RCX: ffff88807fddbe00 RDX: 0000000000000000 RSI: ffffffff8ef9c800 RDI: 0000000000000006 RBP: ffffc9000354fc70 R08: ffff88807fddbe00 R09: 0000000000000006 R10: 0000000000000005 R11: 0000000000000000 R12: ffff888078d7a358 R13: ffff888074984540 R14: 1ffff1100e9308aa R15: ffff888074984552 FS: 0000000000000000(0000) GS:ffff888125055000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f661e1bb6b0 CR3: 0000000059513000 CR4: 0000000000350ef0 Call Trace: jffs2_garbage_collect_thread+0x634/0x6c0 fs/jffs2/background.c:155 kthread+0x388/0x470 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 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:jffs2_garbage_collect_pass+0x20e7/0x2170 fs/jffs2/gc.c:226 Code: 24 ee fd 48 8b 7c 24 20 e8 46 d9 99 08 90 0f 0b e8 de 6b 8d fe bf 02 00 00 00 e8 74 d5 5a fe e9 9d e7 ff ff e8 ca 6b 8d fe 90 <0f> 0b e8 c2 6b 8d fe bf 02 00 00 00 e8 58 d5 5a fe e9 7a f8 ff ff RSP: 0018:ffffc9000354faa0 EFLAGS: 00010293 RAX: ffffffff83399596 RBX: 0000000000000006 RCX: ffff88807fddbe00 RDX: 0000000000000000 RSI: ffffffff8ef9c800 RDI: 0000000000000006 RBP: ffffc9000354fc70 R08: ffff88807fddbe00 R09: 0000000000000006 R10: 0000000000000005 R11: 0000000000000000 R12: ffff888078d7a358 R13: ffff888074984540 R14: 1ffff1100e9308aa R15: ffff888074984552 FS: 0000000000000000(0000) GS:ffff888125055000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f661e1bb6b0 CR3: 0000000059513000 CR4: 0000000000350ef0