------------[ cut here ]------------ kernel BUG at fs/jffs2/background.c:40! invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 PID: 5060 Comm: syz-executor108 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:jffs2_start_garbage_collect_thread+0x1f5/0x200 fs/jffs2/background.c:40 Code: 03 ff e9 1b ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 64 ff ff ff 48 89 df e8 76 78 03 ff e9 57 ff ff ff e8 9c 77 a3 fe 90 <0f> 0b 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000422fd00 EFLAGS: 00010293 RAX: ffffffff82f17cb4 RBX: ffff8880240a6018 RCX: ffff8880242b5a00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880240a6000 RBP: 0000000000000000 R08: ffffffff82f1c1c9 R09: 1ffff92000845f94 R10: dffffc0000000000 R11: fffff52000845f95 R12: ffff8880240a6000 R13: dffffc0000000000 R14: ffff8880240a6000 R15: ffff88802e7774f8 FS: 000055559415a380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f54dacad0d0 CR3: 000000007aeec000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: jffs2_do_remount_fs+0x15b/0x1d0 fs/jffs2/fs.c:415 reconfigure_super+0x445/0x880 fs/super.c:1071 vfs_cmd_reconfigure fs/fsopen.c:267 [inline] vfs_fsconfig_locked fs/fsopen.c:296 [inline] __do_sys_fsconfig fs/fsopen.c:476 [inline] __se_sys_fsconfig+0xab5/0xec0 fs/fsopen.c:349 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7f54dac35cf9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc9713c8d8 EFLAGS: 00000246 ORIG_RAX: 00000000000001af RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007f54dac35cf9 RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000003 RBP: 0000000000010305 R08: 0000000000000000 R09: 0000000000000006 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc9713c8ec R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:jffs2_start_garbage_collect_thread+0x1f5/0x200 fs/jffs2/background.c:40 Code: 03 ff e9 1b ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 64 ff ff ff 48 89 df e8 76 78 03 ff e9 57 ff ff ff e8 9c 77 a3 fe 90 <0f> 0b 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000422fd00 EFLAGS: 00010293 RAX: ffffffff82f17cb4 RBX: ffff8880240a6018 RCX: ffff8880242b5a00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880240a6000 RBP: 0000000000000000 R08: ffffffff82f1c1c9 R09: 1ffff92000845f94 R10: dffffc0000000000 R11: fffff52000845f95 R12: ffff8880240a6000 R13: dffffc0000000000 R14: ffff8880240a6000 R15: ffff88802e7774f8 FS: 000055559415a380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc9713c7d8 CR3: 000000007aeec000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400