Hello, syzbot found the following issue on: HEAD commit: fe46a7dd189e Merge tag 'sound-6.9-rc1' of git://git.kernel.. git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=16f4efc5180000 kernel config: https://syzkaller.appspot.com/x/.config?x=4d90a36f0cab495a dashboard link: https://syzkaller.appspot.com/bug?extid=61a9d95630970eece39d compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15ea8f4b180000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1754c105180000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/72ab73815344/disk-fe46a7dd.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/2d6d6b0d7071/vmlinux-fe46a7dd.xz kernel image: https://storage.googleapis.com/syzbot-assets/48e275e5478b/bzImage-fe46a7dd.xz The issue was bisected to: commit 9c8ad7a2ff0bfe58f019ec0abc1fb965114dde7d Author: David Howells <dhowells@xxxxxxxxxx> Date: Thu May 16 11:52:27 2019 +0000 uapi, x86: Fix the syscall numbering of the mount API syscalls [ver #2] bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=168fca9d180000 final oops: https://syzkaller.appspot.com/x/report.txt?x=158fca9d180000 console output: https://syzkaller.appspot.com/x/log.txt?x=118fca9d180000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+61a9d95630970eece39d@xxxxxxxxxxxxxxxxxxxxxxxxx Fixes: 9c8ad7a2ff0b ("uapi, x86: Fix the syscall numbering of the mount API syscalls [ver #2]") ------------[ 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: <TASK> 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 </TASK> 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 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. For information about bisection process see: https://goo.gl/tpsmEJ#bisection If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
